./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0217.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0217.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 163bc3b45d6f21a8e478003f84571178259b289b3d9717ecadbc4595fc507bec --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:40:31,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:40:31,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:40:31,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:40:31,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:40:31,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:40:31,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:40:31,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:40:31,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:40:31,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:40:31,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:40:31,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:40:31,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:40:31,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:40:31,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:40:31,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:40:31,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:40:31,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:40:31,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:40:31,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:40:31,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:40:31,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:40:31,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:40:31,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:40:31,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:40:31,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:40:31,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:40:31,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:40:31,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:40:31,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:40:31,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:40:31,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:40:31,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:40:31,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:40:31,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:40:31,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:40:31,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:40:31,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:40:31,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:40:31,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:40:31,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:40:31,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-20 10:40:31,110 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:40:31,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:40:31,111 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:40:31,111 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:40:31,112 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:40:31,113 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:40:31,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:40:31,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:40:31,114 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:40:31,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:40:31,115 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:40:31,115 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:40:31,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:40:31,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:40:31,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:40:31,117 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 10:40:31,117 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 10:40:31,117 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 10:40:31,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:40:31,118 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:40:31,118 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:40:31,119 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:40:31,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:40:31,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:40:31,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:40:31,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:40:31,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:40:31,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:40:31,121 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:40:31,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:40:31,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 163bc3b45d6f21a8e478003f84571178259b289b3d9717ecadbc4595fc507bec [2022-11-20 10:40:31,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:40:31,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:40:31,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:40:31,463 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:40:31,463 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:40:31,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/memsafety/test-0217.i [2022-11-20 10:40:35,226 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:40:35,635 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:40:35,636 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/sv-benchmarks/c/memsafety/test-0217.i [2022-11-20 10:40:35,656 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/data/19d1cdc79/d9d88b647fb841618f9d15b2c49ce10c/FLAGb973362a4 [2022-11-20 10:40:35,673 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/data/19d1cdc79/d9d88b647fb841618f9d15b2c49ce10c [2022-11-20 10:40:35,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:40:35,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:40:35,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:40:35,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:40:35,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:40:35,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:40:35" (1/1) ... [2022-11-20 10:40:35,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13687c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:35, skipping insertion in model container [2022-11-20 10:40:35,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:40:35" (1/1) ... [2022-11-20 10:40:35,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:40:35,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:40:36,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:40:36,346 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:40:36,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:40:36,458 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:40:36,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:36 WrapperNode [2022-11-20 10:40:36,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:40:36,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:40:36,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:40:36,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:40:36,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:36" (1/1) ... [2022-11-20 10:40:36,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:36" (1/1) ... [2022-11-20 10:40:36,530 INFO L138 Inliner]: procedures = 181, calls = 47, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 210 [2022-11-20 10:40:36,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:40:36,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:40:36,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:40:36,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:40:36,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:36" (1/1) ... [2022-11-20 10:40:36,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:36" (1/1) ... [2022-11-20 10:40:36,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:36" (1/1) ... [2022-11-20 10:40:36,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:36" (1/1) ... [2022-11-20 10:40:36,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:36" (1/1) ... [2022-11-20 10:40:36,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:36" (1/1) ... [2022-11-20 10:40:36,571 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:36" (1/1) ... [2022-11-20 10:40:36,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:36" (1/1) ... [2022-11-20 10:40:36,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:40:36,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:40:36,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:40:36,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:40:36,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:36" (1/1) ... [2022-11-20 10:40:36,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:40:36,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:40:36,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:40:36,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:40:36,673 INFO L130 BoogieDeclarations]: Found specification of procedure rand_end_point [2022-11-20 10:40:36,673 INFO L138 BoogieDeclarations]: Found implementation of procedure rand_end_point [2022-11-20 10:40:36,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:40:36,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:40:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:40:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:40:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:40:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:40:36,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:40:36,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:40:36,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:40:36,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:40:36,848 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:40:36,857 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:40:37,567 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:40:37,577 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:40:37,578 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 10:40:37,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:40:37 BoogieIcfgContainer [2022-11-20 10:40:37,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:40:37,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:40:37,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:40:37,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:40:37,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:40:35" (1/3) ... [2022-11-20 10:40:37,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b250c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:40:37, skipping insertion in model container [2022-11-20 10:40:37,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:40:36" (2/3) ... [2022-11-20 10:40:37,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b250c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:40:37, skipping insertion in model container [2022-11-20 10:40:37,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:40:37" (3/3) ... [2022-11-20 10:40:37,593 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0217.i [2022-11-20 10:40:37,641 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:40:37,641 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 67 error locations. [2022-11-20 10:40:37,768 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:40:37,782 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b4681d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:40:37,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2022-11-20 10:40:37,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 96 states have (on average 1.9583333333333333) internal successors, (188), 163 states have internal predecessors, (188), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:40:37,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 10:40:37,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:37,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 10:40:37,802 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:37,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:37,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1074518762, now seen corresponding path program 1 times [2022-11-20 10:40:37,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:37,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157514633] [2022-11-20 10:40:37,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:37,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:38,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:38,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:38,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157514633] [2022-11-20 10:40:38,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157514633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:38,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:38,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:40:38,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005503316] [2022-11-20 10:40:38,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:38,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:40:38,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:38,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:40:38,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:40:38,123 INFO L87 Difference]: Start difference. First operand has 167 states, 96 states have (on average 1.9583333333333333) internal successors, (188), 163 states have internal predecessors, (188), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:40:38,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:38,178 INFO L93 Difference]: Finished difference Result 167 states and 186 transitions. [2022-11-20 10:40:38,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:40:38,181 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-20 10:40:38,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:38,191 INFO L225 Difference]: With dead ends: 167 [2022-11-20 10:40:38,192 INFO L226 Difference]: Without dead ends: 165 [2022-11-20 10:40:38,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:40:38,198 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:38,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:40:38,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-20 10:40:38,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-11-20 10:40:38,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 95 states have (on average 1.894736842105263) internal successors, (180), 161 states have internal predecessors, (180), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:40:38,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 184 transitions. [2022-11-20 10:40:38,261 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 184 transitions. Word has length 6 [2022-11-20 10:40:38,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:38,262 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 184 transitions. [2022-11-20 10:40:38,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:40:38,263 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 184 transitions. [2022-11-20 10:40:38,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 10:40:38,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:38,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:38,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:40:38,266 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:38,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:38,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1280331232, now seen corresponding path program 1 times [2022-11-20 10:40:38,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:38,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417661026] [2022-11-20 10:40:38,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:38,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:38,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:38,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:38,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417661026] [2022-11-20 10:40:38,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417661026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:38,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:38,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 10:40:38,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819149075] [2022-11-20 10:40:38,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:38,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:38,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:38,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:38,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:38,417 INFO L87 Difference]: Start difference. First operand 165 states and 184 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:40:38,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:38,702 INFO L93 Difference]: Finished difference Result 321 states and 358 transitions. [2022-11-20 10:40:38,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:38,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-20 10:40:38,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:38,706 INFO L225 Difference]: With dead ends: 321 [2022-11-20 10:40:38,707 INFO L226 Difference]: Without dead ends: 321 [2022-11-20 10:40:38,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:38,709 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 165 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:38,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 237 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:38,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-11-20 10:40:38,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 229. [2022-11-20 10:40:38,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 156 states have (on average 1.8717948717948718) internal successors, (292), 222 states have internal predecessors, (292), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:40:38,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 300 transitions. [2022-11-20 10:40:38,735 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 300 transitions. Word has length 7 [2022-11-20 10:40:38,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:38,735 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 300 transitions. [2022-11-20 10:40:38,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:40:38,736 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 300 transitions. [2022-11-20 10:40:38,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 10:40:38,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:38,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:38,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:40:38,738 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:38,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:38,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1280331231, now seen corresponding path program 1 times [2022-11-20 10:40:38,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:38,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739511739] [2022-11-20 10:40:38,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:38,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:38,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:38,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:38,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739511739] [2022-11-20 10:40:38,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739511739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:38,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:38,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:40:38,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817665809] [2022-11-20 10:40:38,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:38,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:40:38,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:38,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:40:38,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:40:38,994 INFO L87 Difference]: Start difference. First operand 229 states and 300 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:40:39,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:39,337 INFO L93 Difference]: Finished difference Result 368 states and 462 transitions. [2022-11-20 10:40:39,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:40:39,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-20 10:40:39,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:39,340 INFO L225 Difference]: With dead ends: 368 [2022-11-20 10:40:39,341 INFO L226 Difference]: Without dead ends: 368 [2022-11-20 10:40:39,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:40:39,351 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 135 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:39,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 401 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:40:39,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-11-20 10:40:39,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 302. [2022-11-20 10:40:39,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 223 states have (on average 1.8340807174887892) internal successors, (409), 291 states have internal predecessors, (409), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-20 10:40:39,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 425 transitions. [2022-11-20 10:40:39,413 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 425 transitions. Word has length 7 [2022-11-20 10:40:39,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:39,414 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 425 transitions. [2022-11-20 10:40:39,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:40:39,415 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 425 transitions. [2022-11-20 10:40:39,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 10:40:39,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:39,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:39,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:40:39,417 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:39,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:39,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1280331169, now seen corresponding path program 1 times [2022-11-20 10:40:39,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:39,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508873432] [2022-11-20 10:40:39,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:39,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:39,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:39,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:39,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508873432] [2022-11-20 10:40:39,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508873432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:39,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:39,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:40:39,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542310670] [2022-11-20 10:40:39,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:39,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:40:39,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:39,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:40:39,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:40:39,629 INFO L87 Difference]: Start difference. First operand 302 states and 425 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:40:39,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:39,925 INFO L93 Difference]: Finished difference Result 367 states and 460 transitions. [2022-11-20 10:40:39,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:40:39,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-20 10:40:39,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:39,928 INFO L225 Difference]: With dead ends: 367 [2022-11-20 10:40:39,929 INFO L226 Difference]: Without dead ends: 367 [2022-11-20 10:40:39,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:40:39,941 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 117 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:39,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 415 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:40:39,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-11-20 10:40:39,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 302. [2022-11-20 10:40:39,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 223 states have (on average 1.8340807174887892) internal successors, (409), 291 states have internal predecessors, (409), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-20 10:40:39,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 425 transitions. [2022-11-20 10:40:39,977 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 425 transitions. Word has length 7 [2022-11-20 10:40:39,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:39,978 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 425 transitions. [2022-11-20 10:40:39,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:40:39,978 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 425 transitions. [2022-11-20 10:40:39,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 10:40:39,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:39,980 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:39,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:40:39,981 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:39,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:39,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1257058894, now seen corresponding path program 1 times [2022-11-20 10:40:39,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:39,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243355602] [2022-11-20 10:40:39,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:39,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:40,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:40,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:40,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243355602] [2022-11-20 10:40:40,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243355602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:40,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:40,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:40:40,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228428693] [2022-11-20 10:40:40,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:40,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:40:40,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:40,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:40:40,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:40:40,321 INFO L87 Difference]: Start difference. First operand 302 states and 425 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:40:40,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:40,684 INFO L93 Difference]: Finished difference Result 449 states and 603 transitions. [2022-11-20 10:40:40,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:40:40,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-20 10:40:40,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:40,689 INFO L225 Difference]: With dead ends: 449 [2022-11-20 10:40:40,689 INFO L226 Difference]: Without dead ends: 449 [2022-11-20 10:40:40,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:40:40,691 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 146 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:40,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 766 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:40,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-11-20 10:40:40,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 344. [2022-11-20 10:40:40,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 262 states have (on average 1.816793893129771) internal successors, (476), 331 states have internal predecessors, (476), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 10:40:40,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 496 transitions. [2022-11-20 10:40:40,706 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 496 transitions. Word has length 10 [2022-11-20 10:40:40,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:40,707 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 496 transitions. [2022-11-20 10:40:40,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:40:40,707 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 496 transitions. [2022-11-20 10:40:40,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 10:40:40,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:40,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:40,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:40:40,709 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:40,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:40,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1258905936, now seen corresponding path program 1 times [2022-11-20 10:40:40,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:40,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078358405] [2022-11-20 10:40:40,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:40,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:40,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:40,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:40,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078358405] [2022-11-20 10:40:40,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078358405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:40,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:40,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:40:40,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017735408] [2022-11-20 10:40:40,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:40,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:40:40,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:40,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:40:40,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:40:40,931 INFO L87 Difference]: Start difference. First operand 344 states and 496 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:40:41,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:41,200 INFO L93 Difference]: Finished difference Result 439 states and 592 transitions. [2022-11-20 10:40:41,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:40:41,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-20 10:40:41,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:41,204 INFO L225 Difference]: With dead ends: 439 [2022-11-20 10:40:41,204 INFO L226 Difference]: Without dead ends: 439 [2022-11-20 10:40:41,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:40:41,205 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 126 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:41,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 782 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:41,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-11-20 10:40:41,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 343. [2022-11-20 10:40:41,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 261 states have (on average 1.8199233716475096) internal successors, (475), 330 states have internal predecessors, (475), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 10:40:41,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 495 transitions. [2022-11-20 10:40:41,219 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 495 transitions. Word has length 10 [2022-11-20 10:40:41,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:41,219 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 495 transitions. [2022-11-20 10:40:41,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:40:41,220 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 495 transitions. [2022-11-20 10:40:41,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 10:40:41,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:41,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:41,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:40:41,221 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:41,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:41,222 INFO L85 PathProgramCache]: Analyzing trace with hash 314118792, now seen corresponding path program 1 times [2022-11-20 10:40:41,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:41,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126195877] [2022-11-20 10:40:41,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:41,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:41,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:41,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:41,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126195877] [2022-11-20 10:40:41,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126195877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:41,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:41,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:40:41,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370062974] [2022-11-20 10:40:41,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:41,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:41,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:41,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:41,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:41,278 INFO L87 Difference]: Start difference. First operand 343 states and 495 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:40:41,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:41,431 INFO L93 Difference]: Finished difference Result 394 states and 542 transitions. [2022-11-20 10:40:41,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:41,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 10:40:41,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:41,433 INFO L225 Difference]: With dead ends: 394 [2022-11-20 10:40:41,433 INFO L226 Difference]: Without dead ends: 387 [2022-11-20 10:40:41,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:41,434 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 64 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:41,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 275 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:40:41,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-11-20 10:40:41,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 340. [2022-11-20 10:40:41,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 258 states have (on average 1.821705426356589) internal successors, (470), 327 states have internal predecessors, (470), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 10:40:41,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 490 transitions. [2022-11-20 10:40:41,447 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 490 transitions. Word has length 11 [2022-11-20 10:40:41,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:41,447 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 490 transitions. [2022-11-20 10:40:41,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:40:41,448 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 490 transitions. [2022-11-20 10:40:41,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 10:40:41,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:41,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:41,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:40:41,450 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:41,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:41,451 INFO L85 PathProgramCache]: Analyzing trace with hash -584855357, now seen corresponding path program 1 times [2022-11-20 10:40:41,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:41,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794370827] [2022-11-20 10:40:41,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:41,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:41,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:40:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:41,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:41,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:41,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794370827] [2022-11-20 10:40:41,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794370827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:41,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:41,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:41,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991917294] [2022-11-20 10:40:41,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:41,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:40:41,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:41,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:40:41,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:40:41,580 INFO L87 Difference]: Start difference. First operand 340 states and 490 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:41,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:41,956 INFO L93 Difference]: Finished difference Result 554 states and 710 transitions. [2022-11-20 10:40:41,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:40:41,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-20 10:40:41,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:41,961 INFO L225 Difference]: With dead ends: 554 [2022-11-20 10:40:41,961 INFO L226 Difference]: Without dead ends: 554 [2022-11-20 10:40:41,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:40:41,962 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 317 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:41,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 416 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:40:41,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-11-20 10:40:41,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 346. [2022-11-20 10:40:41,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 264 states have (on average 1.803030303030303) internal successors, (476), 333 states have internal predecessors, (476), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 10:40:41,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 496 transitions. [2022-11-20 10:40:41,976 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 496 transitions. Word has length 15 [2022-11-20 10:40:41,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:41,977 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 496 transitions. [2022-11-20 10:40:41,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:41,977 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 496 transitions. [2022-11-20 10:40:41,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 10:40:41,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:41,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:41,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:40:41,978 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:41,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:41,979 INFO L85 PathProgramCache]: Analyzing trace with hash -584855356, now seen corresponding path program 1 times [2022-11-20 10:40:41,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:41,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669951507] [2022-11-20 10:40:41,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:41,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:42,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:40:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:42,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:42,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:42,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669951507] [2022-11-20 10:40:42,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669951507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:42,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:42,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:42,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451929379] [2022-11-20 10:40:42,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:42,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:40:42,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:42,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:40:42,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:40:42,174 INFO L87 Difference]: Start difference. First operand 346 states and 496 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:42,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:42,439 INFO L93 Difference]: Finished difference Result 400 states and 518 transitions. [2022-11-20 10:40:42,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:40:42,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-20 10:40:42,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:42,443 INFO L225 Difference]: With dead ends: 400 [2022-11-20 10:40:42,443 INFO L226 Difference]: Without dead ends: 400 [2022-11-20 10:40:42,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:40:42,444 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 185 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:42,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 427 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:42,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-11-20 10:40:42,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 346. [2022-11-20 10:40:42,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 264 states have (on average 1.768939393939394) internal successors, (467), 333 states have internal predecessors, (467), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 10:40:42,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 487 transitions. [2022-11-20 10:40:42,460 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 487 transitions. Word has length 15 [2022-11-20 10:40:42,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:42,461 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 487 transitions. [2022-11-20 10:40:42,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:42,461 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 487 transitions. [2022-11-20 10:40:42,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 10:40:42,463 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:42,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:42,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:40:42,464 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:42,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:42,465 INFO L85 PathProgramCache]: Analyzing trace with hash 590215118, now seen corresponding path program 1 times [2022-11-20 10:40:42,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:42,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951561647] [2022-11-20 10:40:42,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:42,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:42,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:42,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:42,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951561647] [2022-11-20 10:40:42,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951561647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:42,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:42,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:40:42,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663116416] [2022-11-20 10:40:42,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:42,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:40:42,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:42,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:40:42,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:40:42,626 INFO L87 Difference]: Start difference. First operand 346 states and 487 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:43,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:43,135 INFO L93 Difference]: Finished difference Result 683 states and 818 transitions. [2022-11-20 10:40:43,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:40:43,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-20 10:40:43,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:43,139 INFO L225 Difference]: With dead ends: 683 [2022-11-20 10:40:43,139 INFO L226 Difference]: Without dead ends: 683 [2022-11-20 10:40:43,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:40:43,140 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 837 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:43,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 485 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:40:43,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2022-11-20 10:40:43,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 343. [2022-11-20 10:40:43,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 265 states have (on average 1.739622641509434) internal successors, (461), 330 states have internal predecessors, (461), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 10:40:43,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 481 transitions. [2022-11-20 10:40:43,156 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 481 transitions. Word has length 17 [2022-11-20 10:40:43,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:43,157 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 481 transitions. [2022-11-20 10:40:43,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:43,157 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 481 transitions. [2022-11-20 10:40:43,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 10:40:43,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:43,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:43,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 10:40:43,159 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:43,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:43,160 INFO L85 PathProgramCache]: Analyzing trace with hash 590215119, now seen corresponding path program 1 times [2022-11-20 10:40:43,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:43,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879349724] [2022-11-20 10:40:43,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:43,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:43,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:43,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:43,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879349724] [2022-11-20 10:40:43,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879349724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:43,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:43,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:40:43,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391398427] [2022-11-20 10:40:43,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:43,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:40:43,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:43,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:40:43,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:40:43,446 INFO L87 Difference]: Start difference. First operand 343 states and 481 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:44,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:44,400 INFO L93 Difference]: Finished difference Result 742 states and 915 transitions. [2022-11-20 10:40:44,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:40:44,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-20 10:40:44,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:44,405 INFO L225 Difference]: With dead ends: 742 [2022-11-20 10:40:44,405 INFO L226 Difference]: Without dead ends: 742 [2022-11-20 10:40:44,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:40:44,406 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 626 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:44,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 627 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 10:40:44,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-11-20 10:40:44,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 376. [2022-11-20 10:40:44,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 296 states have (on average 1.7263513513513513) internal successors, (511), 362 states have internal predecessors, (511), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (14), 8 states have call predecessors, (14), 10 states have call successors, (14) [2022-11-20 10:40:44,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 535 transitions. [2022-11-20 10:40:44,424 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 535 transitions. Word has length 17 [2022-11-20 10:40:44,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:44,424 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 535 transitions. [2022-11-20 10:40:44,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:44,425 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 535 transitions. [2022-11-20 10:40:44,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 10:40:44,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:44,426 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:44,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:40:44,426 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:44,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:44,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1217239344, now seen corresponding path program 1 times [2022-11-20 10:40:44,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:44,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306320072] [2022-11-20 10:40:44,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:44,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:44,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:44,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:44,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:44,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306320072] [2022-11-20 10:40:44,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306320072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:44,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:44,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:40:44,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659376734] [2022-11-20 10:40:44,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:44,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:40:44,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:44,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:40:44,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:40:44,547 INFO L87 Difference]: Start difference. First operand 376 states and 535 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:44,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:44,706 INFO L93 Difference]: Finished difference Result 602 states and 831 transitions. [2022-11-20 10:40:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:40:44,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-20 10:40:44,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:44,710 INFO L225 Difference]: With dead ends: 602 [2022-11-20 10:40:44,710 INFO L226 Difference]: Without dead ends: 602 [2022-11-20 10:40:44,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:40:44,711 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 239 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:44,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 1417 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:40:44,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-11-20 10:40:44,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 386. [2022-11-20 10:40:44,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 303 states have (on average 1.7062706270627064) internal successors, (517), 371 states have internal predecessors, (517), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:44,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 547 transitions. [2022-11-20 10:40:44,728 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 547 transitions. Word has length 17 [2022-11-20 10:40:44,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:44,730 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 547 transitions. [2022-11-20 10:40:44,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:44,730 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 547 transitions. [2022-11-20 10:40:44,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 10:40:44,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:44,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:44,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:40:44,732 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:44,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:44,732 INFO L85 PathProgramCache]: Analyzing trace with hash 920341577, now seen corresponding path program 1 times [2022-11-20 10:40:44,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:44,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678023789] [2022-11-20 10:40:44,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:44,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:44,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:44,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:45,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:45,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:45,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678023789] [2022-11-20 10:40:45,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678023789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:45,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:45,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:40:45,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085117973] [2022-11-20 10:40:45,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:45,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:40:45,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:45,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:40:45,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:40:45,022 INFO L87 Difference]: Start difference. First operand 386 states and 547 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:46,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:46,107 INFO L93 Difference]: Finished difference Result 769 states and 957 transitions. [2022-11-20 10:40:46,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:40:46,108 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-20 10:40:46,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:46,111 INFO L225 Difference]: With dead ends: 769 [2022-11-20 10:40:46,112 INFO L226 Difference]: Without dead ends: 769 [2022-11-20 10:40:46,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:40:46,113 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 777 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:46,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 755 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 10:40:46,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2022-11-20 10:40:46,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 383. [2022-11-20 10:40:46,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 300 states have (on average 1.7066666666666668) internal successors, (512), 368 states have internal predecessors, (512), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:46,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 542 transitions. [2022-11-20 10:40:46,129 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 542 transitions. Word has length 18 [2022-11-20 10:40:46,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:46,129 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 542 transitions. [2022-11-20 10:40:46,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:46,130 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 542 transitions. [2022-11-20 10:40:46,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 10:40:46,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:46,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:46,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 10:40:46,131 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:46,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:46,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1931813849, now seen corresponding path program 1 times [2022-11-20 10:40:46,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:46,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146547027] [2022-11-20 10:40:46,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:46,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:46,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:40:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:46,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:46,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:46,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146547027] [2022-11-20 10:40:46,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146547027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:46,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:46,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:40:46,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213067275] [2022-11-20 10:40:46,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:46,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:40:46,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:46,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:40:46,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:40:46,637 INFO L87 Difference]: Start difference. First operand 383 states and 542 transitions. Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:47,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:47,631 INFO L93 Difference]: Finished difference Result 793 states and 1091 transitions. [2022-11-20 10:40:47,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:40:47,632 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-20 10:40:47,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:47,636 INFO L225 Difference]: With dead ends: 793 [2022-11-20 10:40:47,636 INFO L226 Difference]: Without dead ends: 791 [2022-11-20 10:40:47,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:40:47,637 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 547 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:47,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 1506 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:40:47,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2022-11-20 10:40:47,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 377. [2022-11-20 10:40:47,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 294 states have (on average 1.7040816326530612) internal successors, (501), 362 states have internal predecessors, (501), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:47,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 531 transitions. [2022-11-20 10:40:47,652 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 531 transitions. Word has length 21 [2022-11-20 10:40:47,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:47,653 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 531 transitions. [2022-11-20 10:40:47,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:47,653 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 531 transitions. [2022-11-20 10:40:47,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 10:40:47,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:47,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:47,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 10:40:47,655 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:47,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:47,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1757289300, now seen corresponding path program 1 times [2022-11-20 10:40:47,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:47,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386318316] [2022-11-20 10:40:47,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:47,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:48,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:48,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:48,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:48,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386318316] [2022-11-20 10:40:48,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386318316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:48,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:48,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:40:48,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755246631] [2022-11-20 10:40:48,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:48,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:40:48,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:48,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:40:48,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:40:48,033 INFO L87 Difference]: Start difference. First operand 377 states and 531 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:48,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:48,542 INFO L93 Difference]: Finished difference Result 536 states and 710 transitions. [2022-11-20 10:40:48,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:40:48,543 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-20 10:40:48,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:48,545 INFO L225 Difference]: With dead ends: 536 [2022-11-20 10:40:48,545 INFO L226 Difference]: Without dead ends: 536 [2022-11-20 10:40:48,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:40:48,546 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 230 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:48,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 899 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:40:48,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-11-20 10:40:48,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 393. [2022-11-20 10:40:48,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 310 states have (on average 1.6806451612903226) internal successors, (521), 376 states have internal predecessors, (521), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 11 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:48,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 551 transitions. [2022-11-20 10:40:48,559 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 551 transitions. Word has length 21 [2022-11-20 10:40:48,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:48,560 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 551 transitions. [2022-11-20 10:40:48,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:48,560 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 551 transitions. [2022-11-20 10:40:48,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 10:40:48,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:48,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:48,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 10:40:48,562 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:48,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:48,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1569007313, now seen corresponding path program 1 times [2022-11-20 10:40:48,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:48,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677361873] [2022-11-20 10:40:48,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:48,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:48,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:48,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:48,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:48,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677361873] [2022-11-20 10:40:48,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677361873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:48,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:48,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:40:48,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937466695] [2022-11-20 10:40:48,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:48,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:40:48,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:48,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:40:48,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:40:48,684 INFO L87 Difference]: Start difference. First operand 393 states and 551 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:48,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:48,832 INFO L93 Difference]: Finished difference Result 634 states and 876 transitions. [2022-11-20 10:40:48,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:40:48,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-11-20 10:40:48,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:48,837 INFO L225 Difference]: With dead ends: 634 [2022-11-20 10:40:48,837 INFO L226 Difference]: Without dead ends: 634 [2022-11-20 10:40:48,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:40:48,838 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 239 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:48,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 1104 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:40:48,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-11-20 10:40:48,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 395. [2022-11-20 10:40:48,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 312 states have (on average 1.6762820512820513) internal successors, (523), 378 states have internal predecessors, (523), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 11 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:48,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 553 transitions. [2022-11-20 10:40:48,854 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 553 transitions. Word has length 22 [2022-11-20 10:40:48,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:48,857 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 553 transitions. [2022-11-20 10:40:48,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:48,857 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 553 transitions. [2022-11-20 10:40:48,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 10:40:48,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:48,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:48,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 10:40:48,860 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:48,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:48,860 INFO L85 PathProgramCache]: Analyzing trace with hash 206000049, now seen corresponding path program 1 times [2022-11-20 10:40:48,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:48,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958809018] [2022-11-20 10:40:48,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:48,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:48,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:49,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:49,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:49,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958809018] [2022-11-20 10:40:49,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958809018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:49,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:49,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:40:49,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850371103] [2022-11-20 10:40:49,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:49,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:40:49,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:49,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:40:49,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:40:49,008 INFO L87 Difference]: Start difference. First operand 395 states and 553 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:49,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:49,147 INFO L93 Difference]: Finished difference Result 630 states and 868 transitions. [2022-11-20 10:40:49,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:40:49,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-11-20 10:40:49,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:49,151 INFO L225 Difference]: With dead ends: 630 [2022-11-20 10:40:49,151 INFO L226 Difference]: Without dead ends: 630 [2022-11-20 10:40:49,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:40:49,152 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 236 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:49,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 1126 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:40:49,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-11-20 10:40:49,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 393. [2022-11-20 10:40:49,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 310 states have (on average 1.667741935483871) internal successors, (517), 376 states have internal predecessors, (517), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 11 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:49,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 547 transitions. [2022-11-20 10:40:49,172 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 547 transitions. Word has length 22 [2022-11-20 10:40:49,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:49,172 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 547 transitions. [2022-11-20 10:40:49,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:49,173 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 547 transitions. [2022-11-20 10:40:49,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 10:40:49,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:49,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:49,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 10:40:49,177 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:49,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:49,177 INFO L85 PathProgramCache]: Analyzing trace with hash -2074565938, now seen corresponding path program 1 times [2022-11-20 10:40:49,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:49,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872249080] [2022-11-20 10:40:49,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:49,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:49,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:49,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:49,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872249080] [2022-11-20 10:40:49,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872249080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:49,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:49,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:40:49,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319557221] [2022-11-20 10:40:49,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:49,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:40:49,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:49,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:40:49,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:40:49,519 INFO L87 Difference]: Start difference. First operand 393 states and 547 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:50,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:50,023 INFO L93 Difference]: Finished difference Result 566 states and 761 transitions. [2022-11-20 10:40:50,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:40:50,024 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-11-20 10:40:50,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:50,026 INFO L225 Difference]: With dead ends: 566 [2022-11-20 10:40:50,027 INFO L226 Difference]: Without dead ends: 566 [2022-11-20 10:40:50,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:40:50,028 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 185 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:50,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1205 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:40:50,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-11-20 10:40:50,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 403. [2022-11-20 10:40:50,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 320 states have (on average 1.653125) internal successors, (529), 384 states have internal predecessors, (529), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 13 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:50,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 559 transitions. [2022-11-20 10:40:50,041 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 559 transitions. Word has length 22 [2022-11-20 10:40:50,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:50,041 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 559 transitions. [2022-11-20 10:40:50,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:50,041 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 559 transitions. [2022-11-20 10:40:50,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 10:40:50,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:50,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:50,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 10:40:50,043 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:50,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:50,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1039595598, now seen corresponding path program 1 times [2022-11-20 10:40:50,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:50,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625451247] [2022-11-20 10:40:50,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:50,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:50,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:40:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:50,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:50,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:50,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625451247] [2022-11-20 10:40:50,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625451247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:50,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:50,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:50,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487651070] [2022-11-20 10:40:50,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:50,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:40:50,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:50,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:40:50,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:40:50,117 INFO L87 Difference]: Start difference. First operand 403 states and 559 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:50,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:50,457 INFO L93 Difference]: Finished difference Result 638 states and 820 transitions. [2022-11-20 10:40:50,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:40:50,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-11-20 10:40:50,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:50,460 INFO L225 Difference]: With dead ends: 638 [2022-11-20 10:40:50,460 INFO L226 Difference]: Without dead ends: 638 [2022-11-20 10:40:50,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:40:50,461 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 291 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:50,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 424 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:40:50,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-11-20 10:40:50,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 423. [2022-11-20 10:40:50,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 340 states have (on average 1.673529411764706) internal successors, (569), 404 states have internal predecessors, (569), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 13 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:50,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 599 transitions. [2022-11-20 10:40:50,475 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 599 transitions. Word has length 23 [2022-11-20 10:40:50,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:50,475 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 599 transitions. [2022-11-20 10:40:50,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:50,475 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 599 transitions. [2022-11-20 10:40:50,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 10:40:50,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:50,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:50,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 10:40:50,477 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:50,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:50,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1039595597, now seen corresponding path program 1 times [2022-11-20 10:40:50,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:50,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677163461] [2022-11-20 10:40:50,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:50,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:50,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:40:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:50,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:50,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:50,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677163461] [2022-11-20 10:40:50,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677163461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:50,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:50,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:40:50,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697190222] [2022-11-20 10:40:50,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:50,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:40:50,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:50,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:40:50,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:40:50,729 INFO L87 Difference]: Start difference. First operand 423 states and 599 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:51,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:51,090 INFO L93 Difference]: Finished difference Result 475 states and 624 transitions. [2022-11-20 10:40:51,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:40:51,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-11-20 10:40:51,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:51,093 INFO L225 Difference]: With dead ends: 475 [2022-11-20 10:40:51,093 INFO L226 Difference]: Without dead ends: 475 [2022-11-20 10:40:51,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:40:51,094 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 342 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:51,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 509 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:40:51,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-11-20 10:40:51,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 423. [2022-11-20 10:40:51,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 340 states have (on average 1.6470588235294117) internal successors, (560), 404 states have internal predecessors, (560), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 13 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:51,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 590 transitions. [2022-11-20 10:40:51,106 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 590 transitions. Word has length 23 [2022-11-20 10:40:51,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:51,107 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 590 transitions. [2022-11-20 10:40:51,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:51,107 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 590 transitions. [2022-11-20 10:40:51,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 10:40:51,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:51,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:51,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 10:40:51,109 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:51,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:51,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1218800521, now seen corresponding path program 1 times [2022-11-20 10:40:51,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:51,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10819896] [2022-11-20 10:40:51,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:51,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:51,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:51,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:51,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:51,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10819896] [2022-11-20 10:40:51,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10819896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:51,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:51,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:40:51,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684411105] [2022-11-20 10:40:51,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:51,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:40:51,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:51,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:40:51,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:40:51,155 INFO L87 Difference]: Start difference. First operand 423 states and 590 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:51,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:51,181 INFO L93 Difference]: Finished difference Result 435 states and 602 transitions. [2022-11-20 10:40:51,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:40:51,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-20 10:40:51,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:51,184 INFO L225 Difference]: With dead ends: 435 [2022-11-20 10:40:51,185 INFO L226 Difference]: Without dead ends: 435 [2022-11-20 10:40:51,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:40:51,186 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 3 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:51,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 523 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:40:51,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-11-20 10:40:51,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 432. [2022-11-20 10:40:51,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 349 states have (on average 1.6303724928366763) internal successors, (569), 413 states have internal predecessors, (569), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 13 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:51,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 599 transitions. [2022-11-20 10:40:51,199 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 599 transitions. Word has length 25 [2022-11-20 10:40:51,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:51,199 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 599 transitions. [2022-11-20 10:40:51,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:51,200 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 599 transitions. [2022-11-20 10:40:51,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 10:40:51,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:51,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:51,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 10:40:51,201 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:51,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:51,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1220647563, now seen corresponding path program 1 times [2022-11-20 10:40:51,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:51,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488812010] [2022-11-20 10:40:51,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:51,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:51,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:51,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:51,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:51,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488812010] [2022-11-20 10:40:51,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488812010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:51,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:51,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:51,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748259501] [2022-11-20 10:40:51,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:51,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:40:51,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:51,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:40:51,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:40:51,318 INFO L87 Difference]: Start difference. First operand 432 states and 599 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:51,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:51,599 INFO L93 Difference]: Finished difference Result 732 states and 965 transitions. [2022-11-20 10:40:51,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:40:51,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-20 10:40:51,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:51,603 INFO L225 Difference]: With dead ends: 732 [2022-11-20 10:40:51,604 INFO L226 Difference]: Without dead ends: 732 [2022-11-20 10:40:51,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:40:51,604 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 327 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:51,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 439 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:40:51,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-11-20 10:40:51,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 491. [2022-11-20 10:40:51,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 409 states have (on average 1.6039119804400979) internal successors, (656), 472 states have internal predecessors, (656), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 13 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:51,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 686 transitions. [2022-11-20 10:40:51,620 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 686 transitions. Word has length 25 [2022-11-20 10:40:51,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:51,621 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 686 transitions. [2022-11-20 10:40:51,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:51,621 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 686 transitions. [2022-11-20 10:40:51,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 10:40:51,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:51,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:51,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 10:40:51,623 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:51,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:51,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1220647562, now seen corresponding path program 1 times [2022-11-20 10:40:51,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:51,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643419182] [2022-11-20 10:40:51,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:51,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:51,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:51,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:51,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:51,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643419182] [2022-11-20 10:40:51,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643419182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:51,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:51,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:40:51,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337979476] [2022-11-20 10:40:51,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:51,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:51,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:51,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:51,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:51,671 INFO L87 Difference]: Start difference. First operand 491 states and 686 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:51,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:51,809 INFO L93 Difference]: Finished difference Result 574 states and 771 transitions. [2022-11-20 10:40:51,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:51,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-20 10:40:51,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:51,812 INFO L225 Difference]: With dead ends: 574 [2022-11-20 10:40:51,812 INFO L226 Difference]: Without dead ends: 574 [2022-11-20 10:40:51,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:51,813 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 142 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:51,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 254 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:40:51,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-11-20 10:40:51,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 488. [2022-11-20 10:40:51,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 409 states have (on average 1.5745721271393642) internal successors, (644), 469 states have internal predecessors, (644), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 13 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:51,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 674 transitions. [2022-11-20 10:40:51,826 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 674 transitions. Word has length 25 [2022-11-20 10:40:51,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:51,826 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 674 transitions. [2022-11-20 10:40:51,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:51,827 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 674 transitions. [2022-11-20 10:40:51,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 10:40:51,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:51,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:51,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 10:40:51,828 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:51,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:51,828 INFO L85 PathProgramCache]: Analyzing trace with hash 416881146, now seen corresponding path program 1 times [2022-11-20 10:40:51,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:51,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831036508] [2022-11-20 10:40:51,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:51,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:51,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:40:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:51,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:51,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:51,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831036508] [2022-11-20 10:40:51,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831036508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:51,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:51,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:40:51,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744419890] [2022-11-20 10:40:51,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:51,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:40:51,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:51,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:40:51,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:40:51,965 INFO L87 Difference]: Start difference. First operand 488 states and 674 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:52,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:52,501 INFO L93 Difference]: Finished difference Result 1147 states and 1574 transitions. [2022-11-20 10:40:52,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:40:52,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-20 10:40:52,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:52,508 INFO L225 Difference]: With dead ends: 1147 [2022-11-20 10:40:52,508 INFO L226 Difference]: Without dead ends: 1147 [2022-11-20 10:40:52,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:40:52,513 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 488 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:52,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 1560 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:40:52,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2022-11-20 10:40:52,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 583. [2022-11-20 10:40:52,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 504 states have (on average 1.5873015873015872) internal successors, (800), 559 states have internal predecessors, (800), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 18 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:52,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 830 transitions. [2022-11-20 10:40:52,541 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 830 transitions. Word has length 26 [2022-11-20 10:40:52,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:52,541 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 830 transitions. [2022-11-20 10:40:52,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:52,542 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 830 transitions. [2022-11-20 10:40:52,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 10:40:52,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:52,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:52,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 10:40:52,543 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:52,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:52,544 INFO L85 PathProgramCache]: Analyzing trace with hash -93653031, now seen corresponding path program 1 times [2022-11-20 10:40:52,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:52,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876746595] [2022-11-20 10:40:52,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:52,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:52,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:40:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:52,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:52,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:52,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876746595] [2022-11-20 10:40:52,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876746595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:52,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:52,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:40:52,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548494241] [2022-11-20 10:40:52,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:52,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:40:52,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:52,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:40:52,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:40:52,729 INFO L87 Difference]: Start difference. First operand 583 states and 830 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:53,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:53,234 INFO L93 Difference]: Finished difference Result 1144 states and 1564 transitions. [2022-11-20 10:40:53,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:40:53,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-20 10:40:53,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:53,239 INFO L225 Difference]: With dead ends: 1144 [2022-11-20 10:40:53,240 INFO L226 Difference]: Without dead ends: 1144 [2022-11-20 10:40:53,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:40:53,241 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 521 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:53,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 1611 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:40:53,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2022-11-20 10:40:53,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 485. [2022-11-20 10:40:53,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 409 states have (on average 1.550122249388753) internal successors, (634), 466 states have internal predecessors, (634), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 13 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:53,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 664 transitions. [2022-11-20 10:40:53,260 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 664 transitions. Word has length 26 [2022-11-20 10:40:53,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:53,261 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 664 transitions. [2022-11-20 10:40:53,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:53,261 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 664 transitions. [2022-11-20 10:40:53,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 10:40:53,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:53,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:53,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 10:40:53,263 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:53,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:53,263 INFO L85 PathProgramCache]: Analyzing trace with hash 2088228101, now seen corresponding path program 1 times [2022-11-20 10:40:53,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:53,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223065247] [2022-11-20 10:40:53,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:53,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:53,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:53,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:53,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:53,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223065247] [2022-11-20 10:40:53,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223065247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:53,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:53,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:53,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086540396] [2022-11-20 10:40:53,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:53,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:40:53,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:53,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:40:53,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:40:53,360 INFO L87 Difference]: Start difference. First operand 485 states and 664 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:53,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:53,626 INFO L93 Difference]: Finished difference Result 778 states and 1018 transitions. [2022-11-20 10:40:53,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:40:53,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-20 10:40:53,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:53,630 INFO L225 Difference]: With dead ends: 778 [2022-11-20 10:40:53,630 INFO L226 Difference]: Without dead ends: 778 [2022-11-20 10:40:53,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:40:53,631 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 305 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:53,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 497 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:53,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2022-11-20 10:40:53,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 485. [2022-11-20 10:40:53,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 409 states have (on average 1.550122249388753) internal successors, (634), 466 states have internal predecessors, (634), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 13 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:53,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 664 transitions. [2022-11-20 10:40:53,646 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 664 transitions. Word has length 26 [2022-11-20 10:40:53,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:53,646 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 664 transitions. [2022-11-20 10:40:53,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:53,647 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 664 transitions. [2022-11-20 10:40:53,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 10:40:53,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:53,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:53,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 10:40:53,648 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:53,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:53,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1505674617, now seen corresponding path program 1 times [2022-11-20 10:40:53,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:53,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462853414] [2022-11-20 10:40:53,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:53,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:53,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:53,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:53,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:53,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462853414] [2022-11-20 10:40:53,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462853414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:53,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:53,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:40:53,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238073869] [2022-11-20 10:40:53,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:53,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:40:53,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:53,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:40:53,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:40:53,806 INFO L87 Difference]: Start difference. First operand 485 states and 664 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:53,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:53,926 INFO L93 Difference]: Finished difference Result 678 states and 907 transitions. [2022-11-20 10:40:53,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:40:53,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-20 10:40:53,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:53,930 INFO L225 Difference]: With dead ends: 678 [2022-11-20 10:40:53,930 INFO L226 Difference]: Without dead ends: 678 [2022-11-20 10:40:53,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:40:53,931 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 224 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:53,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1361 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:40:53,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-11-20 10:40:53,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 424. [2022-11-20 10:40:53,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 349 states have (on average 1.5472779369627507) internal successors, (540), 405 states have internal predecessors, (540), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 13 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:53,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 570 transitions. [2022-11-20 10:40:53,947 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 570 transitions. Word has length 26 [2022-11-20 10:40:53,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:53,947 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 570 transitions. [2022-11-20 10:40:53,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:53,948 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 570 transitions. [2022-11-20 10:40:53,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 10:40:53,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:53,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:53,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 10:40:53,951 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:53,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:53,951 INFO L85 PathProgramCache]: Analyzing trace with hash 38390969, now seen corresponding path program 1 times [2022-11-20 10:40:53,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:53,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17240476] [2022-11-20 10:40:53,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:53,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:54,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:40:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:54,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:54,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:54,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17240476] [2022-11-20 10:40:54,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17240476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:54,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:54,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:40:54,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203357469] [2022-11-20 10:40:54,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:54,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:40:54,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:54,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:40:54,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:40:54,105 INFO L87 Difference]: Start difference. First operand 424 states and 570 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:54,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:54,324 INFO L93 Difference]: Finished difference Result 492 states and 630 transitions. [2022-11-20 10:40:54,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:40:54,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-11-20 10:40:54,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:54,327 INFO L225 Difference]: With dead ends: 492 [2022-11-20 10:40:54,327 INFO L226 Difference]: Without dead ends: 492 [2022-11-20 10:40:54,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:40:54,328 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 153 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:54,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 619 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:54,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-11-20 10:40:54,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 424. [2022-11-20 10:40:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 349 states have (on average 1.5444126074498568) internal successors, (539), 405 states have internal predecessors, (539), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 13 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:54,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 569 transitions. [2022-11-20 10:40:54,345 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 569 transitions. Word has length 27 [2022-11-20 10:40:54,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:54,345 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 569 transitions. [2022-11-20 10:40:54,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:54,346 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 569 transitions. [2022-11-20 10:40:54,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 10:40:54,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:54,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:54,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-20 10:40:54,347 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:54,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:54,348 INFO L85 PathProgramCache]: Analyzing trace with hash 516237483, now seen corresponding path program 1 times [2022-11-20 10:40:54,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:54,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540071859] [2022-11-20 10:40:54,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:54,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:54,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:54,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:54,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:54,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540071859] [2022-11-20 10:40:54,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540071859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:54,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:54,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:40:54,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658702510] [2022-11-20 10:40:54,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:54,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:40:54,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:54,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:40:54,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:40:54,485 INFO L87 Difference]: Start difference. First operand 424 states and 569 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:54,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:54,739 INFO L93 Difference]: Finished difference Result 615 states and 812 transitions. [2022-11-20 10:40:54,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:40:54,740 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-11-20 10:40:54,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:54,742 INFO L225 Difference]: With dead ends: 615 [2022-11-20 10:40:54,742 INFO L226 Difference]: Without dead ends: 615 [2022-11-20 10:40:54,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:40:54,748 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 156 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:54,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 1000 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:54,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2022-11-20 10:40:54,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 454. [2022-11-20 10:40:54,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 379 states have (on average 1.5145118733509235) internal successors, (574), 435 states have internal predecessors, (574), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 13 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:54,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 604 transitions. [2022-11-20 10:40:54,769 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 604 transitions. Word has length 27 [2022-11-20 10:40:54,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:54,769 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 604 transitions. [2022-11-20 10:40:54,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:54,769 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 604 transitions. [2022-11-20 10:40:54,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 10:40:54,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:54,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:54,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-20 10:40:54,771 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:54,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:54,771 INFO L85 PathProgramCache]: Analyzing trace with hash 516237677, now seen corresponding path program 1 times [2022-11-20 10:40:54,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:54,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529596737] [2022-11-20 10:40:54,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:54,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:54,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:54,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:54,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:54,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529596737] [2022-11-20 10:40:54,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529596737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:54,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:54,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:54,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028321446] [2022-11-20 10:40:54,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:54,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:40:54,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:54,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:40:54,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:40:54,916 INFO L87 Difference]: Start difference. First operand 454 states and 604 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:55,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:55,144 INFO L93 Difference]: Finished difference Result 776 states and 987 transitions. [2022-11-20 10:40:55,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:40:55,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-11-20 10:40:55,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:55,153 INFO L225 Difference]: With dead ends: 776 [2022-11-20 10:40:55,153 INFO L226 Difference]: Without dead ends: 776 [2022-11-20 10:40:55,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:40:55,154 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 455 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:55,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 375 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:55,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2022-11-20 10:40:55,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 544. [2022-11-20 10:40:55,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 469 states have (on average 1.4968017057569296) internal successors, (702), 525 states have internal predecessors, (702), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 13 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:40:55,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 732 transitions. [2022-11-20 10:40:55,176 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 732 transitions. Word has length 27 [2022-11-20 10:40:55,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:55,176 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 732 transitions. [2022-11-20 10:40:55,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:55,177 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 732 transitions. [2022-11-20 10:40:55,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 10:40:55,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:55,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:55,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-20 10:40:55,179 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:55,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:55,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1190828282, now seen corresponding path program 1 times [2022-11-20 10:40:55,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:55,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838360102] [2022-11-20 10:40:55,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:55,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:55,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:40:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:55,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:55,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:55,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838360102] [2022-11-20 10:40:55,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838360102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:55,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:55,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:40:55,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498962940] [2022-11-20 10:40:55,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:55,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:40:55,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:55,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:40:55,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:40:55,674 INFO L87 Difference]: Start difference. First operand 544 states and 732 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:56,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:56,489 INFO L93 Difference]: Finished difference Result 648 states and 831 transitions. [2022-11-20 10:40:56,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:40:56,489 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-11-20 10:40:56,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:56,492 INFO L225 Difference]: With dead ends: 648 [2022-11-20 10:40:56,492 INFO L226 Difference]: Without dead ends: 648 [2022-11-20 10:40:56,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:40:56,493 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 271 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:56,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1553 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:40:56,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2022-11-20 10:40:56,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 427. [2022-11-20 10:40:56,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 360 states have (on average 1.4833333333333334) internal successors, (534), 414 states have internal predecessors, (534), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (12), 9 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-20 10:40:56,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 552 transitions. [2022-11-20 10:40:56,505 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 552 transitions. Word has length 28 [2022-11-20 10:40:56,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:56,505 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 552 transitions. [2022-11-20 10:40:56,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:56,506 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 552 transitions. [2022-11-20 10:40:56,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 10:40:56,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:56,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:56,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-20 10:40:56,507 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:56,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:56,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1037479271, now seen corresponding path program 1 times [2022-11-20 10:40:56,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:56,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161841922] [2022-11-20 10:40:56,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:56,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:56,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:56,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:56,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:56,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161841922] [2022-11-20 10:40:56,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161841922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:56,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:56,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:56,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894505737] [2022-11-20 10:40:56,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:56,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:40:56,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:56,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:40:56,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:40:56,618 INFO L87 Difference]: Start difference. First operand 427 states and 552 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:56,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:56,847 INFO L93 Difference]: Finished difference Result 619 states and 784 transitions. [2022-11-20 10:40:56,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:40:56,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-11-20 10:40:56,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:56,850 INFO L225 Difference]: With dead ends: 619 [2022-11-20 10:40:56,850 INFO L226 Difference]: Without dead ends: 619 [2022-11-20 10:40:56,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:40:56,851 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 299 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:56,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 378 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:56,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-11-20 10:40:56,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 340. [2022-11-20 10:40:56,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 274 states have (on average 1.4817518248175183) internal successors, (406), 327 states have internal predecessors, (406), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (12), 9 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-20 10:40:56,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 424 transitions. [2022-11-20 10:40:56,862 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 424 transitions. Word has length 28 [2022-11-20 10:40:56,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:56,863 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 424 transitions. [2022-11-20 10:40:56,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:56,863 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 424 transitions. [2022-11-20 10:40:56,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-20 10:40:56,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:56,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:56,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-20 10:40:56,864 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:56,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:56,865 INFO L85 PathProgramCache]: Analyzing trace with hash -734692199, now seen corresponding path program 1 times [2022-11-20 10:40:56,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:56,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024167406] [2022-11-20 10:40:56,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:56,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:56,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:56,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:56,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:56,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024167406] [2022-11-20 10:40:56,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024167406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:56,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:56,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:40:56,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376442382] [2022-11-20 10:40:56,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:56,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:40:56,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:56,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:40:56,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:40:56,958 INFO L87 Difference]: Start difference. First operand 340 states and 424 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:57,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:57,219 INFO L93 Difference]: Finished difference Result 422 states and 516 transitions. [2022-11-20 10:40:57,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:40:57,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-11-20 10:40:57,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:57,221 INFO L225 Difference]: With dead ends: 422 [2022-11-20 10:40:57,221 INFO L226 Difference]: Without dead ends: 422 [2022-11-20 10:40:57,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:40:57,222 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 444 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:57,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 496 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:57,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-11-20 10:40:57,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 339. [2022-11-20 10:40:57,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 274 states have (on average 1.4744525547445255) internal successors, (404), 326 states have internal predecessors, (404), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (12), 9 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-20 10:40:57,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 422 transitions. [2022-11-20 10:40:57,229 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 422 transitions. Word has length 35 [2022-11-20 10:40:57,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:57,229 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 422 transitions. [2022-11-20 10:40:57,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:57,230 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 422 transitions. [2022-11-20 10:40:57,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-20 10:40:57,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:57,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:57,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-20 10:40:57,230 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:57,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:57,231 INFO L85 PathProgramCache]: Analyzing trace with hash -734692198, now seen corresponding path program 1 times [2022-11-20 10:40:57,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:57,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707031090] [2022-11-20 10:40:57,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:57,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:57,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:57,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:57,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:57,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707031090] [2022-11-20 10:40:57,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707031090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:57,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:57,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:40:57,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139369930] [2022-11-20 10:40:57,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:57,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:40:57,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:57,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:40:57,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:40:57,459 INFO L87 Difference]: Start difference. First operand 339 states and 422 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:57,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:57,673 INFO L93 Difference]: Finished difference Result 338 states and 420 transitions. [2022-11-20 10:40:57,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:40:57,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-11-20 10:40:57,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:57,675 INFO L225 Difference]: With dead ends: 338 [2022-11-20 10:40:57,675 INFO L226 Difference]: Without dead ends: 338 [2022-11-20 10:40:57,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:40:57,676 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 472 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:57,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 314 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:40:57,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-11-20 10:40:57,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2022-11-20 10:40:57,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 274 states have (on average 1.467153284671533) internal successors, (402), 325 states have internal predecessors, (402), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (12), 9 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-20 10:40:57,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 420 transitions. [2022-11-20 10:40:57,702 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 420 transitions. Word has length 35 [2022-11-20 10:40:57,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:57,702 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 420 transitions. [2022-11-20 10:40:57,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:57,703 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 420 transitions. [2022-11-20 10:40:57,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-20 10:40:57,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:57,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:57,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-20 10:40:57,705 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:57,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:57,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1664563334, now seen corresponding path program 1 times [2022-11-20 10:40:57,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:57,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701750223] [2022-11-20 10:40:57,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:57,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:57,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:57,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:57,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:57,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701750223] [2022-11-20 10:40:57,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701750223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:57,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:57,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:40:57,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369838027] [2022-11-20 10:40:57,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:57,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:40:57,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:57,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:40:57,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:40:57,795 INFO L87 Difference]: Start difference. First operand 338 states and 420 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:58,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:58,059 INFO L93 Difference]: Finished difference Result 697 states and 845 transitions. [2022-11-20 10:40:58,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:40:58,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-11-20 10:40:58,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:58,062 INFO L225 Difference]: With dead ends: 697 [2022-11-20 10:40:58,062 INFO L226 Difference]: Without dead ends: 697 [2022-11-20 10:40:58,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:40:58,063 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 493 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:58,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 429 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:58,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2022-11-20 10:40:58,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 335. [2022-11-20 10:40:58,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 274 states have (on average 1.4452554744525548) internal successors, (396), 322 states have internal predecessors, (396), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (12), 9 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-20 10:40:58,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 414 transitions. [2022-11-20 10:40:58,075 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 414 transitions. Word has length 37 [2022-11-20 10:40:58,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:58,076 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 414 transitions. [2022-11-20 10:40:58,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:58,076 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 414 transitions. [2022-11-20 10:40:58,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-20 10:40:58,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:58,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:58,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-20 10:40:58,077 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:58,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:58,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1664563333, now seen corresponding path program 1 times [2022-11-20 10:40:58,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:58,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626804152] [2022-11-20 10:40:58,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:58,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:58,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:58,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:58,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:58,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626804152] [2022-11-20 10:40:58,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626804152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:58,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:58,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:40:58,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235256143] [2022-11-20 10:40:58,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:58,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:40:58,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:58,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:40:58,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:40:58,327 INFO L87 Difference]: Start difference. First operand 335 states and 414 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:58,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:58,632 INFO L93 Difference]: Finished difference Result 529 states and 653 transitions. [2022-11-20 10:40:58,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:40:58,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-11-20 10:40:58,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:58,635 INFO L225 Difference]: With dead ends: 529 [2022-11-20 10:40:58,635 INFO L226 Difference]: Without dead ends: 529 [2022-11-20 10:40:58,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:40:58,636 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 719 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:58,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 415 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:40:58,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-11-20 10:40:58,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 334. [2022-11-20 10:40:58,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 274 states have (on average 1.437956204379562) internal successors, (394), 321 states have internal predecessors, (394), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (12), 9 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-20 10:40:58,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 412 transitions. [2022-11-20 10:40:58,647 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 412 transitions. Word has length 37 [2022-11-20 10:40:58,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:58,647 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 412 transitions. [2022-11-20 10:40:58,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:58,648 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 412 transitions. [2022-11-20 10:40:58,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-20 10:40:58,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:58,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:58,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-20 10:40:58,649 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:58,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:58,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1664563172, now seen corresponding path program 1 times [2022-11-20 10:40:58,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:58,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959376502] [2022-11-20 10:40:58,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:58,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:58,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:58,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:58,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:58,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959376502] [2022-11-20 10:40:58,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959376502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:58,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:58,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:40:58,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000676225] [2022-11-20 10:40:58,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:58,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:40:58,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:58,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:40:58,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:40:58,919 INFO L87 Difference]: Start difference. First operand 334 states and 412 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:59,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:59,283 INFO L93 Difference]: Finished difference Result 473 states and 538 transitions. [2022-11-20 10:40:59,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:40:59,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-11-20 10:40:59,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:59,285 INFO L225 Difference]: With dead ends: 473 [2022-11-20 10:40:59,285 INFO L226 Difference]: Without dead ends: 473 [2022-11-20 10:40:59,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:40:59,286 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 363 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:59,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 429 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:40:59,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-11-20 10:40:59,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 334. [2022-11-20 10:40:59,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 274 states have (on average 1.4306569343065694) internal successors, (392), 321 states have internal predecessors, (392), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (12), 9 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-20 10:40:59,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 410 transitions. [2022-11-20 10:40:59,294 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 410 transitions. Word has length 37 [2022-11-20 10:40:59,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:59,296 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 410 transitions. [2022-11-20 10:40:59,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:40:59,296 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 410 transitions. [2022-11-20 10:40:59,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-20 10:40:59,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:59,297 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:59,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-20 10:40:59,298 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:40:59,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:59,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1071259938, now seen corresponding path program 1 times [2022-11-20 10:40:59,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:40:59,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384817356] [2022-11-20 10:40:59,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:59,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:40:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:59,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:40:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:59,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:40:59,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:40:59,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384817356] [2022-11-20 10:40:59,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384817356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:59,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:59,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:40:59,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850117603] [2022-11-20 10:40:59,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:59,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:40:59,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:40:59,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:40:59,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:40:59,736 INFO L87 Difference]: Start difference. First operand 334 states and 410 transitions. Second operand has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:41:00,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:41:00,466 INFO L93 Difference]: Finished difference Result 641 states and 790 transitions. [2022-11-20 10:41:00,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:41:00,467 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-11-20 10:41:00,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:41:00,469 INFO L225 Difference]: With dead ends: 641 [2022-11-20 10:41:00,469 INFO L226 Difference]: Without dead ends: 641 [2022-11-20 10:41:00,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:41:00,470 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 706 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:41:00,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 831 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:41:00,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-11-20 10:41:00,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 335. [2022-11-20 10:41:00,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 276 states have (on average 1.4275362318840579) internal successors, (394), 322 states have internal predecessors, (394), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (12), 9 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-20 10:41:00,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 412 transitions. [2022-11-20 10:41:00,484 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 412 transitions. Word has length 48 [2022-11-20 10:41:00,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:00,484 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 412 transitions. [2022-11-20 10:41:00,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:41:00,485 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 412 transitions. [2022-11-20 10:41:00,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-20 10:41:00,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:00,485 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:00,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-20 10:41:00,486 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:41:00,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:00,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1071260000, now seen corresponding path program 1 times [2022-11-20 10:41:00,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:00,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102483378] [2022-11-20 10:41:00,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:00,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:00,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:41:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:00,768 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:00,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:00,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102483378] [2022-11-20 10:41:00,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102483378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:00,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:00,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:41:00,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612881481] [2022-11-20 10:41:00,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:00,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:41:00,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:00,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:41:00,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:41:00,771 INFO L87 Difference]: Start difference. First operand 335 states and 412 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:41:00,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:41:00,992 INFO L93 Difference]: Finished difference Result 350 states and 425 transitions. [2022-11-20 10:41:00,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:41:00,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-11-20 10:41:00,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:41:00,994 INFO L225 Difference]: With dead ends: 350 [2022-11-20 10:41:00,994 INFO L226 Difference]: Without dead ends: 350 [2022-11-20 10:41:00,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:41:00,995 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 285 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:41:00,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 309 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:41:00,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-11-20 10:41:01,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 332. [2022-11-20 10:41:01,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 274 states have (on average 1.4197080291970803) internal successors, (389), 319 states have internal predecessors, (389), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (12), 9 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-20 10:41:01,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 407 transitions. [2022-11-20 10:41:01,004 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 407 transitions. Word has length 48 [2022-11-20 10:41:01,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:01,005 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 407 transitions. [2022-11-20 10:41:01,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:41:01,005 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 407 transitions. [2022-11-20 10:41:01,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-20 10:41:01,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:01,006 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:01,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-20 10:41:01,006 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:41:01,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:01,007 INFO L85 PathProgramCache]: Analyzing trace with hash 122043664, now seen corresponding path program 1 times [2022-11-20 10:41:01,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:01,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329707128] [2022-11-20 10:41:01,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:01,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:01,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:41:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:01,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-20 10:41:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:01,294 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:41:01,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:01,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329707128] [2022-11-20 10:41:01,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329707128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:01,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:01,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:41:01,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350849512] [2022-11-20 10:41:01,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:01,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:41:01,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:01,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:41:01,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:41:01,297 INFO L87 Difference]: Start difference. First operand 332 states and 407 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:41:01,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:41:01,558 INFO L93 Difference]: Finished difference Result 385 states and 480 transitions. [2022-11-20 10:41:01,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:41:01,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2022-11-20 10:41:01,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:41:01,560 INFO L225 Difference]: With dead ends: 385 [2022-11-20 10:41:01,560 INFO L226 Difference]: Without dead ends: 385 [2022-11-20 10:41:01,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:41:01,561 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 466 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:41:01,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 306 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:41:01,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-11-20 10:41:01,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 330. [2022-11-20 10:41:01,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 274 states have (on average 1.405109489051095) internal successors, (385), 317 states have internal predecessors, (385), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (12), 9 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-20 10:41:01,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 403 transitions. [2022-11-20 10:41:01,569 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 403 transitions. Word has length 50 [2022-11-20 10:41:01,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:01,570 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 403 transitions. [2022-11-20 10:41:01,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:41:01,570 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 403 transitions. [2022-11-20 10:41:01,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-20 10:41:01,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:01,571 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:01,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-20 10:41:01,572 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:41:01,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:01,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1996957779, now seen corresponding path program 1 times [2022-11-20 10:41:01,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:01,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893260571] [2022-11-20 10:41:01,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:01,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:02,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:41:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:02,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:02,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:02,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893260571] [2022-11-20 10:41:02,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893260571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:02,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:02,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 10:41:02,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286938152] [2022-11-20 10:41:02,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:02,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 10:41:02,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:02,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 10:41:02,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:41:02,425 INFO L87 Difference]: Start difference. First operand 330 states and 403 transitions. Second operand has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:41:04,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:41:04,307 INFO L93 Difference]: Finished difference Result 1073 states and 1311 transitions. [2022-11-20 10:41:04,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 10:41:04,308 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-11-20 10:41:04,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:41:04,312 INFO L225 Difference]: With dead ends: 1073 [2022-11-20 10:41:04,312 INFO L226 Difference]: Without dead ends: 1073 [2022-11-20 10:41:04,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 10:41:04,313 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1303 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 1965 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:41:04,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 1965 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 10:41:04,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-11-20 10:41:04,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 476. [2022-11-20 10:41:04,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 413 states have (on average 1.3922518159806296) internal successors, (575), 459 states have internal predecessors, (575), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 11 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:41:04,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 605 transitions. [2022-11-20 10:41:04,329 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 605 transitions. Word has length 51 [2022-11-20 10:41:04,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:04,329 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 605 transitions. [2022-11-20 10:41:04,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:41:04,330 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 605 transitions. [2022-11-20 10:41:04,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-20 10:41:04,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:04,333 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:04,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-20 10:41:04,334 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:41:04,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:04,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1996957778, now seen corresponding path program 1 times [2022-11-20 10:41:04,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:04,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076465546] [2022-11-20 10:41:04,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:04,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:05,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:41:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:05,804 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:05,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:05,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076465546] [2022-11-20 10:41:05,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076465546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:05,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:05,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 10:41:05,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641105899] [2022-11-20 10:41:05,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:05,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:41:05,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:05,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:41:05,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:41:05,807 INFO L87 Difference]: Start difference. First operand 476 states and 605 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:41:06,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:41:06,731 INFO L93 Difference]: Finished difference Result 506 states and 636 transitions. [2022-11-20 10:41:06,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:41:06,732 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-11-20 10:41:06,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:41:06,734 INFO L225 Difference]: With dead ends: 506 [2022-11-20 10:41:06,735 INFO L226 Difference]: Without dead ends: 506 [2022-11-20 10:41:06,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-11-20 10:41:06,735 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 151 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:41:06,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 989 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:41:06,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2022-11-20 10:41:06,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 496. [2022-11-20 10:41:06,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 433 states have (on average 1.3764434180138567) internal successors, (596), 479 states have internal predecessors, (596), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 11 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:41:06,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 626 transitions. [2022-11-20 10:41:06,746 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 626 transitions. Word has length 51 [2022-11-20 10:41:06,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:06,747 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 626 transitions. [2022-11-20 10:41:06,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:41:06,747 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 626 transitions. [2022-11-20 10:41:06,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 10:41:06,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:06,748 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:06,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-20 10:41:06,748 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:41:06,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:06,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1999969648, now seen corresponding path program 1 times [2022-11-20 10:41:06,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:06,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995480604] [2022-11-20 10:41:06,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:06,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:07,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:41:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:07,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:07,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:07,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995480604] [2022-11-20 10:41:07,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995480604] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:41:07,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095160156] [2022-11-20 10:41:07,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:07,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:41:07,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:41:07,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:41:07,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:41:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:08,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 55 conjunts are in the unsatisfiable core [2022-11-20 10:41:08,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:41:08,287 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-20 10:41:08,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-20 10:41:08,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:41:08,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:41:08,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:41:08,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-11-20 10:41:08,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:41:08,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-11-20 10:41:08,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-20 10:41:08,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-20 10:41:08,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-20 10:41:08,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-20 10:41:09,002 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:09,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:41:09,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095160156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:09,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:41:09,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 23 [2022-11-20 10:41:09,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534151636] [2022-11-20 10:41:09,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:09,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:41:09,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:09,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:41:09,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2022-11-20 10:41:09,007 INFO L87 Difference]: Start difference. First operand 496 states and 626 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:41:10,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:41:10,510 INFO L93 Difference]: Finished difference Result 890 states and 1038 transitions. [2022-11-20 10:41:10,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:41:10,510 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-11-20 10:41:10,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:41:10,514 INFO L225 Difference]: With dead ends: 890 [2022-11-20 10:41:10,514 INFO L226 Difference]: Without dead ends: 890 [2022-11-20 10:41:10,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2022-11-20 10:41:10,515 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 708 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:41:10,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 2193 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 10:41:10,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2022-11-20 10:41:10,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 501. [2022-11-20 10:41:10,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 438 states have (on average 1.36986301369863) internal successors, (600), 484 states have internal predecessors, (600), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 11 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 10:41:10,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 630 transitions. [2022-11-20 10:41:10,530 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 630 transitions. Word has length 52 [2022-11-20 10:41:10,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:10,531 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 630 transitions. [2022-11-20 10:41:10,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:41:10,531 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 630 transitions. [2022-11-20 10:41:10,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 10:41:10,532 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:10,532 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:10,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:41:10,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:41:10,744 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:41:10,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:10,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1818456665, now seen corresponding path program 1 times [2022-11-20 10:41:10,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:10,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442643613] [2022-11-20 10:41:10,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:10,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:12,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:41:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:12,096 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:12,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:12,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442643613] [2022-11-20 10:41:12,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442643613] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:41:12,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618556364] [2022-11-20 10:41:12,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:12,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:41:12,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:41:12,098 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:41:12,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:41:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:12,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 73 conjunts are in the unsatisfiable core [2022-11-20 10:41:12,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:41:12,578 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-20 10:41:12,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-20 10:41:13,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:41:13,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:41:13,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:41:13,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:41:13,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:41:13,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:41:13,403 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-20 10:41:13,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2022-11-20 10:41:13,422 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-20 10:41:13,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-11-20 10:41:14,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:41:14,357 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:41:14,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 43 [2022-11-20 10:41:14,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:41:14,377 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:41:14,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 42 [2022-11-20 10:41:14,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:14,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:41:16,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618556364] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:41:16,135 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:41:16,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 24 [2022-11-20 10:41:16,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135325049] [2022-11-20 10:41:16,136 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:41:16,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 10:41:16,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:16,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 10:41:16,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=973, Unknown=3, NotChecked=0, Total=1122 [2022-11-20 10:41:16,137 INFO L87 Difference]: Start difference. First operand 501 states and 630 transitions. Second operand has 25 states, 24 states have (on average 4.166666666666667) internal successors, (100), 23 states have internal predecessors, (100), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:41:18,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:41:18,772 INFO L93 Difference]: Finished difference Result 629 states and 777 transitions. [2022-11-20 10:41:18,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-20 10:41:18,773 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.166666666666667) internal successors, (100), 23 states have internal predecessors, (100), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2022-11-20 10:41:18,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:41:18,776 INFO L225 Difference]: With dead ends: 629 [2022-11-20 10:41:18,776 INFO L226 Difference]: Without dead ends: 629 [2022-11-20 10:41:18,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 78 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=491, Invalid=2472, Unknown=7, NotChecked=0, Total=2970 [2022-11-20 10:41:18,778 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 465 mSDsluCounter, 1644 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 377 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:41:18,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 1819 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 837 Invalid, 0 Unknown, 377 Unchecked, 0.8s Time] [2022-11-20 10:41:18,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2022-11-20 10:41:18,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 561. [2022-11-20 10:41:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 495 states have (on average 1.3575757575757577) internal successors, (672), 542 states have internal predecessors, (672), 11 states have call successors, (11), 6 states have call predecessors, (11), 12 states have return successors, (22), 12 states have call predecessors, (22), 11 states have call successors, (22) [2022-11-20 10:41:18,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 705 transitions. [2022-11-20 10:41:18,792 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 705 transitions. Word has length 52 [2022-11-20 10:41:18,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:18,792 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 705 transitions. [2022-11-20 10:41:18,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.166666666666667) internal successors, (100), 23 states have internal predecessors, (100), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:41:18,793 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 705 transitions. [2022-11-20 10:41:18,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 10:41:18,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:18,794 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:18,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:41:19,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-11-20 10:41:19,001 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:41:19,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:19,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1818456664, now seen corresponding path program 1 times [2022-11-20 10:41:19,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:19,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475578132] [2022-11-20 10:41:19,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:19,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:19,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:20,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:41:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:20,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:20,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:20,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475578132] [2022-11-20 10:41:20,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475578132] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:41:20,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347090618] [2022-11-20 10:41:20,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:20,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:41:20,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:41:20,255 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:41:20,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:41:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:20,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-20 10:41:20,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:41:20,643 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-20 10:41:20,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-20 10:41:21,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:41:21,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:41:21,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:41:21,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:41:21,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:41:21,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 10:41:21,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:41:21,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-20 10:41:21,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:41:21,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-20 10:41:21,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:41:21,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:41:21,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:41:21,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-20 10:41:21,830 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:41:21,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-20 10:41:21,838 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:21,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:41:22,126 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_~#list~0.offset| (* ~unnamed1~0~LIST_BEG 4)))) (and (forall ((v_ArrVal_504 (Array Int Int)) (v_ArrVal_506 Int)) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_504))) (store .cse0 |c_ULTIMATE.start_create_item_~cursor#1.base| (store (select .cse0 |c_ULTIMATE.start_create_item_~cursor#1.base|) |c_ULTIMATE.start_create_item_~cursor#1.offset| v_ArrVal_506))) |c_~#list~0.base|) .cse1) 0)) (forall ((v_ArrVal_505 (Array Int Int)) (|ULTIMATE.start_create_item_~head~0#1.offset| Int)) (= (select (select (let ((.cse2 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_505))) (store .cse2 |c_ULTIMATE.start_create_item_~cursor#1.base| (store (select .cse2 |c_ULTIMATE.start_create_item_~cursor#1.base|) |c_ULTIMATE.start_create_item_~cursor#1.offset| |ULTIMATE.start_create_item_~head~0#1.offset|))) |c_~#list~0.base|) .cse1) 0)))) is different from false [2022-11-20 10:41:33,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347090618] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:41:33,783 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:41:33,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 21 [2022-11-20 10:41:33,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599623619] [2022-11-20 10:41:33,783 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:41:33,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 10:41:33,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:33,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 10:41:33,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=544, Unknown=3, NotChecked=48, Total=702 [2022-11-20 10:41:33,785 INFO L87 Difference]: Start difference. First operand 561 states and 705 transitions. Second operand has 21 states, 21 states have (on average 4.333333333333333) internal successors, (91), 19 states have internal predecessors, (91), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:41:36,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:41:36,085 INFO L93 Difference]: Finished difference Result 826 states and 1002 transitions. [2022-11-20 10:41:36,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 10:41:36,086 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.333333333333333) internal successors, (91), 19 states have internal predecessors, (91), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 52 [2022-11-20 10:41:36,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:41:36,089 INFO L225 Difference]: With dead ends: 826 [2022-11-20 10:41:36,089 INFO L226 Difference]: Without dead ends: 826 [2022-11-20 10:41:36,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 84 SyntacticMatches, 7 SemanticMatches, 41 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=378, Invalid=1342, Unknown=6, NotChecked=80, Total=1806 [2022-11-20 10:41:36,091 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 1193 mSDsluCounter, 1814 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 122 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:41:36,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 1981 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 957 Invalid, 0 Unknown, 122 Unchecked, 1.0s Time] [2022-11-20 10:41:36,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-11-20 10:41:36,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 709. [2022-11-20 10:41:36,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 632 states have (on average 1.3544303797468353) internal successors, (856), 683 states have internal predecessors, (856), 16 states have call successors, (16), 9 states have call predecessors, (16), 18 states have return successors, (32), 16 states have call predecessors, (32), 16 states have call successors, (32) [2022-11-20 10:41:36,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 904 transitions. [2022-11-20 10:41:36,110 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 904 transitions. Word has length 52 [2022-11-20 10:41:36,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:36,110 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 904 transitions. [2022-11-20 10:41:36,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.333333333333333) internal successors, (91), 19 states have internal predecessors, (91), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:41:36,111 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 904 transitions. [2022-11-20 10:41:36,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 10:41:36,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:36,112 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:36,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-20 10:41:36,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-11-20 10:41:36,318 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:41:36,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:36,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1816609623, now seen corresponding path program 1 times [2022-11-20 10:41:36,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:36,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328876699] [2022-11-20 10:41:36,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:36,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:37,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:41:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:37,569 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:37,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:37,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328876699] [2022-11-20 10:41:37,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328876699] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:41:37,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069876236] [2022-11-20 10:41:37,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:37,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:41:37,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:41:37,575 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:41:37,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:41:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:37,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 73 conjunts are in the unsatisfiable core [2022-11-20 10:41:37,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:41:38,008 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-20 10:41:38,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-20 10:41:38,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:41:38,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:41:38,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:41:38,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:41:38,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:41:38,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:41:38,816 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-20 10:41:38,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2022-11-20 10:41:38,833 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-11-20 10:41:38,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 10:41:39,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:41:39,566 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:41:39,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 45 [2022-11-20 10:41:39,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:41:39,582 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:41:39,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 44 [2022-11-20 10:41:39,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:39,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:41:40,279 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_~#list~0.offset| (* ~unnamed1~0~LIST_END 4)))) (and (or (forall ((v_ArrVal_568 (Array Int Int))) (= (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_568))) (store .cse0 |c_ULTIMATE.start_create_item_~cursor#1.base| (store (select .cse0 |c_ULTIMATE.start_create_item_~cursor#1.base|) |c_ULTIMATE.start_create_item_~cursor#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base|))) |c_~#list~0.base|) .cse1)) 1)) (forall ((v_ArrVal_567 (Array Int Int))) (= (select (select (let ((.cse2 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_567))) (store .cse2 |c_ULTIMATE.start_create_item_~cursor#1.base| (store (select .cse2 |c_ULTIMATE.start_create_item_~cursor#1.base|) |c_ULTIMATE.start_create_item_~cursor#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.offset|))) |c_~#list~0.base|) .cse1) 0))) (forall ((v_ArrVal_568 (Array Int Int))) (let ((.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_568))) (store .cse4 |c_ULTIMATE.start_create_item_~cursor#1.base| (store (select .cse4 |c_ULTIMATE.start_create_item_~cursor#1.base|) |c_ULTIMATE.start_create_item_~cursor#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base|))) |c_~#list~0.base|) .cse1))) (or (= .cse3 0) (= (select |c_#valid| .cse3) 1)))))) is different from false [2022-11-20 10:41:40,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069876236] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:41:40,939 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:41:40,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10] total 27 [2022-11-20 10:41:40,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659393973] [2022-11-20 10:41:40,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:41:40,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-20 10:41:40,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:40,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-20 10:41:40,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=1104, Unknown=3, NotChecked=68, Total=1332 [2022-11-20 10:41:40,941 INFO L87 Difference]: Start difference. First operand 709 states and 904 transitions. Second operand has 28 states, 27 states have (on average 3.7037037037037037) internal successors, (100), 26 states have internal predecessors, (100), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:41:42,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:41:42,916 INFO L93 Difference]: Finished difference Result 821 states and 1029 transitions. [2022-11-20 10:41:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 10:41:42,917 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.7037037037037037) internal successors, (100), 26 states have internal predecessors, (100), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2022-11-20 10:41:42,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:41:42,919 INFO L225 Difference]: With dead ends: 821 [2022-11-20 10:41:42,919 INFO L226 Difference]: Without dead ends: 821 [2022-11-20 10:41:42,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 77 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=335, Invalid=1918, Unknown=7, NotChecked=92, Total=2352 [2022-11-20 10:41:42,921 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 181 mSDsluCounter, 2065 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 1638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 453 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:41:42,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 2233 Invalid, 1638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1140 Invalid, 0 Unknown, 453 Unchecked, 1.0s Time] [2022-11-20 10:41:42,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2022-11-20 10:41:42,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 765. [2022-11-20 10:41:42,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 682 states have (on average 1.343108504398827) internal successors, (916), 736 states have internal predecessors, (916), 19 states have call successors, (19), 11 states have call predecessors, (19), 21 states have return successors, (37), 17 states have call predecessors, (37), 19 states have call successors, (37) [2022-11-20 10:41:42,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 972 transitions. [2022-11-20 10:41:42,938 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 972 transitions. Word has length 52 [2022-11-20 10:41:42,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:42,939 INFO L495 AbstractCegarLoop]: Abstraction has 765 states and 972 transitions. [2022-11-20 10:41:42,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.7037037037037037) internal successors, (100), 26 states have internal predecessors, (100), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:41:42,939 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 972 transitions. [2022-11-20 10:41:42,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 10:41:42,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:42,940 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:42,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:41:43,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:41:43,147 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:41:43,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:43,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1816609622, now seen corresponding path program 1 times [2022-11-20 10:41:43,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:43,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878415116] [2022-11-20 10:41:43,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:43,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:44,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:41:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:44,720 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:44,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:44,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878415116] [2022-11-20 10:41:44,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878415116] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:41:44,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260635104] [2022-11-20 10:41:44,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:44,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:41:44,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:41:44,722 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:41:44,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:41:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:44,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 76 conjunts are in the unsatisfiable core [2022-11-20 10:41:44,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:41:45,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:41:45,249 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-20 10:41:45,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-20 10:41:45,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:41:45,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:41:45,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:41:45,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:41:45,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:41:45,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:41:45,951 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-20 10:41:45,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2022-11-20 10:41:45,968 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-11-20 10:41:45,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 10:41:46,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:41:46,685 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:41:46,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 45 [2022-11-20 10:41:46,692 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:41:46,697 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:41:46,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 44 [2022-11-20 10:41:46,964 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:46,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:41:47,694 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (* ~unnamed2~0~ITEM_PREV 4)) (.cse2 (+ |c_~#list~0.offset| (* ~unnamed1~0~LIST_END 4)))) (and (forall ((v_ArrVal_630 (Array Int Int))) (<= 0 (+ .cse0 (select (select (let ((.cse1 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_630))) (store .cse1 |c_ULTIMATE.start_create_item_~cursor#1.base| (store (select .cse1 |c_ULTIMATE.start_create_item_~cursor#1.base|) |c_ULTIMATE.start_create_item_~cursor#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.offset|))) |c_~#list~0.base|) .cse2)))) (forall ((v_ArrVal_630 (Array Int Int)) (v_ArrVal_631 (Array Int Int))) (let ((.cse3 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_630))) (store .cse5 |c_ULTIMATE.start_create_item_~cursor#1.base| (store (select .cse5 |c_ULTIMATE.start_create_item_~cursor#1.base|) |c_ULTIMATE.start_create_item_~cursor#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.offset|))) |c_~#list~0.base|) .cse2))) (or (= .cse3 0) (<= (+ .cse0 .cse3 4) (select |c_#length| (select (select (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_631))) (store .cse4 |c_ULTIMATE.start_create_item_~cursor#1.base| (store (select .cse4 |c_ULTIMATE.start_create_item_~cursor#1.base|) |c_ULTIMATE.start_create_item_~cursor#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base|))) |c_~#list~0.base|) .cse2)))))) (forall ((v_ArrVal_630 (Array Int Int)) (v_ArrVal_631 (Array Int Int))) (let ((.cse6 (select (select (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_631))) (store .cse8 |c_ULTIMATE.start_create_item_~cursor#1.base| (store (select .cse8 |c_ULTIMATE.start_create_item_~cursor#1.base|) |c_ULTIMATE.start_create_item_~cursor#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base|))) |c_~#list~0.base|) .cse2))) (or (= .cse6 0) (<= (+ .cse0 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_630))) (store .cse7 |c_ULTIMATE.start_create_item_~cursor#1.base| (store (select .cse7 |c_ULTIMATE.start_create_item_~cursor#1.base|) |c_ULTIMATE.start_create_item_~cursor#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.offset|))) |c_~#list~0.base|) .cse2) 4) (select |c_#length| .cse6))))))) is different from false [2022-11-20 10:41:48,203 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:41:48,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 304 treesize of output 309 [2022-11-20 10:41:53,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260635104] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:41:53,062 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:41:53,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10] total 26 [2022-11-20 10:41:53,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704368305] [2022-11-20 10:41:53,063 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:41:53,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 10:41:53,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:53,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 10:41:53,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1118, Unknown=3, NotChecked=68, Total=1332 [2022-11-20 10:41:53,065 INFO L87 Difference]: Start difference. First operand 765 states and 972 transitions. Second operand has 27 states, 26 states have (on average 3.8461538461538463) internal successors, (100), 25 states have internal predecessors, (100), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:41:56,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:41:56,416 INFO L93 Difference]: Finished difference Result 814 states and 1033 transitions. [2022-11-20 10:41:56,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 10:41:56,419 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.8461538461538463) internal successors, (100), 25 states have internal predecessors, (100), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2022-11-20 10:41:56,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:41:56,422 INFO L225 Difference]: With dead ends: 814 [2022-11-20 10:41:56,423 INFO L226 Difference]: Without dead ends: 814 [2022-11-20 10:41:56,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=343, Invalid=2204, Unknown=7, NotChecked=98, Total=2652 [2022-11-20 10:41:56,424 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 174 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1902 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 334 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:41:56,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1902 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 773 Invalid, 0 Unknown, 334 Unchecked, 1.1s Time] [2022-11-20 10:41:56,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2022-11-20 10:41:56,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 803. [2022-11-20 10:41:56,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 720 states have (on average 1.3375) internal successors, (963), 774 states have internal predecessors, (963), 19 states have call successors, (19), 11 states have call predecessors, (19), 21 states have return successors, (37), 17 states have call predecessors, (37), 19 states have call successors, (37) [2022-11-20 10:41:56,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1019 transitions. [2022-11-20 10:41:56,444 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1019 transitions. Word has length 52 [2022-11-20 10:41:56,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:56,444 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1019 transitions. [2022-11-20 10:41:56,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.8461538461538463) internal successors, (100), 25 states have internal predecessors, (100), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:41:56,445 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1019 transitions. [2022-11-20 10:41:56,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 10:41:56,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:56,446 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:56,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-20 10:41:56,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:41:56,659 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:41:56,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:56,659 INFO L85 PathProgramCache]: Analyzing trace with hash -939923179, now seen corresponding path program 1 times [2022-11-20 10:41:56,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:41:56,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758106647] [2022-11-20 10:41:56,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:56,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:41:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:57,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:41:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:57,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:41:57,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:41:57,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758106647] [2022-11-20 10:41:57,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758106647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:57,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:57,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-20 10:41:57,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941797209] [2022-11-20 10:41:57,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:57,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 10:41:57,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:41:57,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 10:41:57,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:41:57,850 INFO L87 Difference]: Start difference. First operand 803 states and 1019 transitions. Second operand has 16 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:02,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:02,370 INFO L93 Difference]: Finished difference Result 1650 states and 2065 transitions. [2022-11-20 10:42:02,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-20 10:42:02,370 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-11-20 10:42:02,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:02,374 INFO L225 Difference]: With dead ends: 1650 [2022-11-20 10:42:02,374 INFO L226 Difference]: Without dead ends: 1650 [2022-11-20 10:42:02,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=480, Invalid=1682, Unknown=0, NotChecked=0, Total=2162 [2022-11-20 10:42:02,376 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 1580 mSDsluCounter, 1766 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 1690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:02,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 1963 Invalid, 1690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1580 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 10:42:02,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2022-11-20 10:42:02,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 809. [2022-11-20 10:42:02,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 726 states have (on average 1.3388429752066116) internal successors, (972), 780 states have internal predecessors, (972), 19 states have call successors, (19), 11 states have call predecessors, (19), 21 states have return successors, (37), 17 states have call predecessors, (37), 19 states have call successors, (37) [2022-11-20 10:42:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1028 transitions. [2022-11-20 10:42:02,419 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1028 transitions. Word has length 53 [2022-11-20 10:42:02,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:02,420 INFO L495 AbstractCegarLoop]: Abstraction has 809 states and 1028 transitions. [2022-11-20 10:42:02,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:02,420 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1028 transitions. [2022-11-20 10:42:02,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 10:42:02,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:02,422 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:02,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-20 10:42:02,422 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:02,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:02,423 INFO L85 PathProgramCache]: Analyzing trace with hash -939923178, now seen corresponding path program 1 times [2022-11-20 10:42:02,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:02,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025086633] [2022-11-20 10:42:02,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:02,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:03,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:04,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:04,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025086633] [2022-11-20 10:42:04,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025086633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:04,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:04,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-20 10:42:04,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420455970] [2022-11-20 10:42:04,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:04,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 10:42:04,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:04,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 10:42:04,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:42:04,021 INFO L87 Difference]: Start difference. First operand 809 states and 1028 transitions. Second operand has 16 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:08,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:08,840 INFO L93 Difference]: Finished difference Result 1577 states and 1996 transitions. [2022-11-20 10:42:08,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-20 10:42:08,841 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-11-20 10:42:08,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:08,845 INFO L225 Difference]: With dead ends: 1577 [2022-11-20 10:42:08,845 INFO L226 Difference]: Without dead ends: 1577 [2022-11-20 10:42:08,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2022-11-20 10:42:08,846 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 1431 mSDsluCounter, 1703 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:08,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1433 Valid, 1906 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 10:42:08,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2022-11-20 10:42:08,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 912. [2022-11-20 10:42:08,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 817 states have (on average 1.3586291309669523) internal successors, (1110), 877 states have internal predecessors, (1110), 25 states have call successors, (25), 14 states have call predecessors, (25), 27 states have return successors, (49), 20 states have call predecessors, (49), 25 states have call successors, (49) [2022-11-20 10:42:08,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1184 transitions. [2022-11-20 10:42:08,872 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1184 transitions. Word has length 53 [2022-11-20 10:42:08,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:08,873 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1184 transitions. [2022-11-20 10:42:08,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:08,873 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1184 transitions. [2022-11-20 10:42:08,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 10:42:08,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:08,875 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:08,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-20 10:42:08,875 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:08,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:08,876 INFO L85 PathProgramCache]: Analyzing trace with hash -938076137, now seen corresponding path program 1 times [2022-11-20 10:42:08,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:08,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114172720] [2022-11-20 10:42:08,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:08,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:09,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:09,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:09,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:09,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114172720] [2022-11-20 10:42:09,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114172720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:09,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:09,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 10:42:09,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549763023] [2022-11-20 10:42:09,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:09,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:42:09,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:09,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:42:09,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:42:09,501 INFO L87 Difference]: Start difference. First operand 912 states and 1184 transitions. Second operand has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:10,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:10,988 INFO L93 Difference]: Finished difference Result 1350 states and 1752 transitions. [2022-11-20 10:42:10,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 10:42:10,989 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-11-20 10:42:10,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:10,992 INFO L225 Difference]: With dead ends: 1350 [2022-11-20 10:42:10,992 INFO L226 Difference]: Without dead ends: 1350 [2022-11-20 10:42:10,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-20 10:42:10,993 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 744 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:10,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 1208 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 10:42:10,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2022-11-20 10:42:11,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1020. [2022-11-20 10:42:11,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 909 states have (on average 1.3575357535753576) internal successors, (1234), 977 states have internal predecessors, (1234), 33 states have call successors, (33), 18 states have call predecessors, (33), 35 states have return successors, (65), 24 states have call predecessors, (65), 33 states have call successors, (65) [2022-11-20 10:42:11,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1332 transitions. [2022-11-20 10:42:11,037 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1332 transitions. Word has length 53 [2022-11-20 10:42:11,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:11,037 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1332 transitions. [2022-11-20 10:42:11,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:11,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1332 transitions. [2022-11-20 10:42:11,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 10:42:11,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:11,039 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:11,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-20 10:42:11,040 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:11,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:11,040 INFO L85 PathProgramCache]: Analyzing trace with hash -938076136, now seen corresponding path program 1 times [2022-11-20 10:42:11,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:11,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929117624] [2022-11-20 10:42:11,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:11,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:11,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:11,991 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:11,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:11,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929117624] [2022-11-20 10:42:11,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929117624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:11,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:11,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 10:42:11,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887979998] [2022-11-20 10:42:11,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:11,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:42:11,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:11,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:42:11,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:42:11,993 INFO L87 Difference]: Start difference. First operand 1020 states and 1332 transitions. Second operand has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:13,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:13,367 INFO L93 Difference]: Finished difference Result 1333 states and 1738 transitions. [2022-11-20 10:42:13,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:42:13,368 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-11-20 10:42:13,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:13,371 INFO L225 Difference]: With dead ends: 1333 [2022-11-20 10:42:13,371 INFO L226 Difference]: Without dead ends: 1333 [2022-11-20 10:42:13,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:42:13,372 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 736 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:13,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 1095 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 10:42:13,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2022-11-20 10:42:13,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1114. [2022-11-20 10:42:13,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 995 states have (on average 1.3849246231155778) internal successors, (1378), 1067 states have internal predecessors, (1378), 37 states have call successors, (37), 20 states have call predecessors, (37), 39 states have return successors, (73), 26 states have call predecessors, (73), 37 states have call successors, (73) [2022-11-20 10:42:13,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1488 transitions. [2022-11-20 10:42:13,400 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1488 transitions. Word has length 53 [2022-11-20 10:42:13,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:13,400 INFO L495 AbstractCegarLoop]: Abstraction has 1114 states and 1488 transitions. [2022-11-20 10:42:13,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:13,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1488 transitions. [2022-11-20 10:42:13,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 10:42:13,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:13,402 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:13,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-20 10:42:13,403 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:13,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:13,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1137990448, now seen corresponding path program 1 times [2022-11-20 10:42:13,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:13,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921107651] [2022-11-20 10:42:13,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:13,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:14,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:14,479 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:14,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:14,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921107651] [2022-11-20 10:42:14,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921107651] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:42:14,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964911865] [2022-11-20 10:42:14,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:14,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:42:14,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:42:14,482 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:42:14,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 10:42:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:14,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-20 10:42:14,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:42:14,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:42:15,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:42:15,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:42:15,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2022-11-20 10:42:16,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:42:16,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 9 [2022-11-20 10:42:16,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:16,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:42:16,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964911865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:16,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:42:16,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 23 [2022-11-20 10:42:16,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661260936] [2022-11-20 10:42:16,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:16,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:42:16,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:16,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:42:16,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2022-11-20 10:42:16,084 INFO L87 Difference]: Start difference. First operand 1114 states and 1488 transitions. Second operand has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:17,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:17,867 INFO L93 Difference]: Finished difference Result 2410 states and 3239 transitions. [2022-11-20 10:42:17,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 10:42:17,868 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-11-20 10:42:17,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:17,874 INFO L225 Difference]: With dead ends: 2410 [2022-11-20 10:42:17,874 INFO L226 Difference]: Without dead ends: 2410 [2022-11-20 10:42:17,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=213, Invalid=1047, Unknown=0, NotChecked=0, Total=1260 [2022-11-20 10:42:17,875 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 716 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 391 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:17,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 1609 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 881 Invalid, 0 Unknown, 391 Unchecked, 1.1s Time] [2022-11-20 10:42:17,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2410 states. [2022-11-20 10:42:17,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2410 to 1847. [2022-11-20 10:42:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1672 states have (on average 1.4114832535885167) internal successors, (2360), 1770 states have internal predecessors, (2360), 67 states have call successors, (67), 33 states have call predecessors, (67), 65 states have return successors, (133), 43 states have call predecessors, (133), 67 states have call successors, (133) [2022-11-20 10:42:17,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2560 transitions. [2022-11-20 10:42:17,926 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2560 transitions. Word has length 53 [2022-11-20 10:42:17,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:17,926 INFO L495 AbstractCegarLoop]: Abstraction has 1847 states and 2560 transitions. [2022-11-20 10:42:17,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:17,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2560 transitions. [2022-11-20 10:42:17,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 10:42:17,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:17,928 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:17,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:42:18,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2022-11-20 10:42:18,135 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:18,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:18,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1137990447, now seen corresponding path program 1 times [2022-11-20 10:42:18,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:18,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136439028] [2022-11-20 10:42:18,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:18,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:19,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:19,842 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:19,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:19,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136439028] [2022-11-20 10:42:19,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136439028] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:42:19,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793615793] [2022-11-20 10:42:19,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:19,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:42:19,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:42:19,844 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:42:19,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 10:42:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:20,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 63 conjunts are in the unsatisfiable core [2022-11-20 10:42:20,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:42:20,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:42:20,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:42:20,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:42:21,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:42:21,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2022-11-20 10:42:21,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:42:21,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2022-11-20 10:42:21,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:42:21,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-11-20 10:42:21,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:42:21,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 9 [2022-11-20 10:42:21,738 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:21,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:42:21,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793615793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:21,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:42:21,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 23 [2022-11-20 10:42:21,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516882813] [2022-11-20 10:42:21,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:21,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:42:21,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:21,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:42:21,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2022-11-20 10:42:21,740 INFO L87 Difference]: Start difference. First operand 1847 states and 2560 transitions. Second operand has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:22,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:22,726 INFO L93 Difference]: Finished difference Result 2238 states and 3068 transitions. [2022-11-20 10:42:22,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:42:22,726 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-11-20 10:42:22,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:22,730 INFO L225 Difference]: With dead ends: 2238 [2022-11-20 10:42:22,730 INFO L226 Difference]: Without dead ends: 2238 [2022-11-20 10:42:22,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=103, Invalid=767, Unknown=0, NotChecked=0, Total=870 [2022-11-20 10:42:22,731 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 123 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 183 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:22,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1356 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 461 Invalid, 0 Unknown, 183 Unchecked, 0.6s Time] [2022-11-20 10:42:22,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2238 states. [2022-11-20 10:42:22,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2238 to 2140. [2022-11-20 10:42:22,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 1944 states have (on average 1.4058641975308641) internal successors, (2733), 2047 states have internal predecessors, (2733), 80 states have call successors, (80), 41 states have call predecessors, (80), 73 states have return successors, (159), 51 states have call predecessors, (159), 80 states have call successors, (159) [2022-11-20 10:42:22,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2972 transitions. [2022-11-20 10:42:22,777 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2972 transitions. Word has length 53 [2022-11-20 10:42:22,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:22,778 INFO L495 AbstractCegarLoop]: Abstraction has 2140 states and 2972 transitions. [2022-11-20 10:42:22,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:22,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2972 transitions. [2022-11-20 10:42:22,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 10:42:22,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:22,780 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:22,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:42:22,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2022-11-20 10:42:22,986 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:22,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:22,987 INFO L85 PathProgramCache]: Analyzing trace with hash -761402410, now seen corresponding path program 1 times [2022-11-20 10:42:22,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:22,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903380859] [2022-11-20 10:42:22,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:22,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:23,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:23,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:23,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:23,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903380859] [2022-11-20 10:42:23,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903380859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:23,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:23,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:42:23,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009113200] [2022-11-20 10:42:23,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:23,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:42:23,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:23,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:42:23,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:42:23,614 INFO L87 Difference]: Start difference. First operand 2140 states and 2972 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:24,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:24,471 INFO L93 Difference]: Finished difference Result 2863 states and 3960 transitions. [2022-11-20 10:42:24,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:42:24,472 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-11-20 10:42:24,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:24,479 INFO L225 Difference]: With dead ends: 2863 [2022-11-20 10:42:24,479 INFO L226 Difference]: Without dead ends: 2863 [2022-11-20 10:42:24,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:42:24,480 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 854 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:24,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1228 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 10:42:24,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2022-11-20 10:42:24,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2197. [2022-11-20 10:42:24,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 2001 states have (on average 1.39880059970015) internal successors, (2799), 2104 states have internal predecessors, (2799), 80 states have call successors, (80), 41 states have call predecessors, (80), 73 states have return successors, (159), 51 states have call predecessors, (159), 80 states have call successors, (159) [2022-11-20 10:42:24,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3038 transitions. [2022-11-20 10:42:24,531 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3038 transitions. Word has length 53 [2022-11-20 10:42:24,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:24,532 INFO L495 AbstractCegarLoop]: Abstraction has 2197 states and 3038 transitions. [2022-11-20 10:42:24,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:24,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3038 transitions. [2022-11-20 10:42:24,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 10:42:24,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:24,533 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:24,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-20 10:42:24,534 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:24,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:24,534 INFO L85 PathProgramCache]: Analyzing trace with hash -537583025, now seen corresponding path program 1 times [2022-11-20 10:42:24,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:24,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844064547] [2022-11-20 10:42:24,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:24,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:26,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:26,124 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:26,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:26,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844064547] [2022-11-20 10:42:26,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844064547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:26,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:26,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-20 10:42:26,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236131466] [2022-11-20 10:42:26,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:26,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 10:42:26,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:26,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 10:42:26,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:42:26,127 INFO L87 Difference]: Start difference. First operand 2197 states and 3038 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:29,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:29,856 INFO L93 Difference]: Finished difference Result 2921 states and 4082 transitions. [2022-11-20 10:42:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:42:29,857 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-11-20 10:42:29,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:29,863 INFO L225 Difference]: With dead ends: 2921 [2022-11-20 10:42:29,863 INFO L226 Difference]: Without dead ends: 2921 [2022-11-20 10:42:29,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=187, Invalid=515, Unknown=0, NotChecked=0, Total=702 [2022-11-20 10:42:29,864 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1419 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:29,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1421 Valid, 2439 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 10:42:29,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2022-11-20 10:42:29,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1690. [2022-11-20 10:42:29,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1690 states, 1527 states have (on average 1.418467583497053) internal successors, (2166), 1620 states have internal predecessors, (2166), 62 states have call successors, (62), 30 states have call predecessors, (62), 58 states have return successors, (124), 39 states have call predecessors, (124), 62 states have call successors, (124) [2022-11-20 10:42:29,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2352 transitions. [2022-11-20 10:42:29,916 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2352 transitions. Word has length 53 [2022-11-20 10:42:29,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:29,917 INFO L495 AbstractCegarLoop]: Abstraction has 1690 states and 2352 transitions. [2022-11-20 10:42:29,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:29,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2352 transitions. [2022-11-20 10:42:29,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-20 10:42:29,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:29,918 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:29,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-20 10:42:29,919 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:29,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:29,919 INFO L85 PathProgramCache]: Analyzing trace with hash 927151265, now seen corresponding path program 1 times [2022-11-20 10:42:29,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:29,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657985209] [2022-11-20 10:42:29,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:29,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:31,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:31,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:31,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:31,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657985209] [2022-11-20 10:42:31,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657985209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:31,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:31,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-20 10:42:31,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610605833] [2022-11-20 10:42:31,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:31,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 10:42:31,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:31,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 10:42:31,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:42:31,028 INFO L87 Difference]: Start difference. First operand 1690 states and 2352 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 15 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:34,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:34,192 INFO L93 Difference]: Finished difference Result 3186 states and 4470 transitions. [2022-11-20 10:42:34,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-20 10:42:34,199 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 15 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2022-11-20 10:42:34,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:34,207 INFO L225 Difference]: With dead ends: 3186 [2022-11-20 10:42:34,208 INFO L226 Difference]: Without dead ends: 3186 [2022-11-20 10:42:34,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2022-11-20 10:42:34,209 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 2967 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2968 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:34,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2968 Valid, 1554 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 10:42:34,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2022-11-20 10:42:34,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 1697. [2022-11-20 10:42:34,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1534 states have (on average 1.4178617992177314) internal successors, (2175), 1627 states have internal predecessors, (2175), 62 states have call successors, (62), 30 states have call predecessors, (62), 58 states have return successors, (124), 39 states have call predecessors, (124), 62 states have call successors, (124) [2022-11-20 10:42:34,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2361 transitions. [2022-11-20 10:42:34,258 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2361 transitions. Word has length 54 [2022-11-20 10:42:34,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:34,258 INFO L495 AbstractCegarLoop]: Abstraction has 1697 states and 2361 transitions. [2022-11-20 10:42:34,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 15 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:34,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2361 transitions. [2022-11-20 10:42:34,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-20 10:42:34,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:34,260 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:34,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-20 10:42:34,261 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:34,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:34,261 INFO L85 PathProgramCache]: Analyzing trace with hash 984409567, now seen corresponding path program 1 times [2022-11-20 10:42:34,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:34,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812151693] [2022-11-20 10:42:34,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:34,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:34,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:34,820 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:34,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:34,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812151693] [2022-11-20 10:42:34,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812151693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:34,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:34,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 10:42:34,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912131524] [2022-11-20 10:42:34,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:34,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:42:34,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:34,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:42:34,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:42:34,822 INFO L87 Difference]: Start difference. First operand 1697 states and 2361 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:35,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:35,595 INFO L93 Difference]: Finished difference Result 2081 states and 2842 transitions. [2022-11-20 10:42:35,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:42:35,595 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2022-11-20 10:42:35,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:35,601 INFO L225 Difference]: With dead ends: 2081 [2022-11-20 10:42:35,601 INFO L226 Difference]: Without dead ends: 2081 [2022-11-20 10:42:35,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:42:35,602 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 991 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:35,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 1029 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:42:35,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2022-11-20 10:42:35,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 1695. [2022-11-20 10:42:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1532 states have (on average 1.4171018276762402) internal successors, (2171), 1625 states have internal predecessors, (2171), 62 states have call successors, (62), 30 states have call predecessors, (62), 58 states have return successors, (124), 39 states have call predecessors, (124), 62 states have call successors, (124) [2022-11-20 10:42:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2357 transitions. [2022-11-20 10:42:35,640 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2357 transitions. Word has length 54 [2022-11-20 10:42:35,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:35,641 INFO L495 AbstractCegarLoop]: Abstraction has 1695 states and 2357 transitions. [2022-11-20 10:42:35,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:35,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2357 transitions. [2022-11-20 10:42:35,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-20 10:42:35,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:35,643 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:35,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-20 10:42:35,643 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:35,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:35,644 INFO L85 PathProgramCache]: Analyzing trace with hash -917966778, now seen corresponding path program 1 times [2022-11-20 10:42:35,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:35,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537935837] [2022-11-20 10:42:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:35,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:36,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:36,155 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:36,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:36,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537935837] [2022-11-20 10:42:36,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537935837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:36,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:36,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:42:36,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249030796] [2022-11-20 10:42:36,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:36,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:42:36,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:36,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:42:36,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:42:36,157 INFO L87 Difference]: Start difference. First operand 1695 states and 2357 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:36,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:36,893 INFO L93 Difference]: Finished difference Result 2162 states and 2974 transitions. [2022-11-20 10:42:36,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:42:36,893 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2022-11-20 10:42:36,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:36,898 INFO L225 Difference]: With dead ends: 2162 [2022-11-20 10:42:36,898 INFO L226 Difference]: Without dead ends: 2162 [2022-11-20 10:42:36,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:42:36,899 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 303 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:36,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 1219 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:42:36,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2162 states. [2022-11-20 10:42:36,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2162 to 1776. [2022-11-20 10:42:36,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1776 states, 1605 states have (on average 1.4274143302180686) internal successors, (2291), 1702 states have internal predecessors, (2291), 66 states have call successors, (66), 32 states have call predecessors, (66), 62 states have return successors, (132), 41 states have call predecessors, (132), 66 states have call successors, (132) [2022-11-20 10:42:36,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2489 transitions. [2022-11-20 10:42:36,937 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2489 transitions. Word has length 54 [2022-11-20 10:42:36,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:36,938 INFO L495 AbstractCegarLoop]: Abstraction has 1776 states and 2489 transitions. [2022-11-20 10:42:36,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:36,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2489 transitions. [2022-11-20 10:42:36,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-20 10:42:36,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:36,940 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:36,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-20 10:42:36,940 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:36,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:36,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1935592645, now seen corresponding path program 1 times [2022-11-20 10:42:36,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:36,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003337278] [2022-11-20 10:42:36,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:36,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:38,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:38,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:38,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:38,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003337278] [2022-11-20 10:42:38,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003337278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:38,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:38,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 10:42:38,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671317966] [2022-11-20 10:42:38,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:38,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:42:38,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:38,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:42:38,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:42:38,365 INFO L87 Difference]: Start difference. First operand 1776 states and 2489 transitions. Second operand has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:43,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:43,525 INFO L93 Difference]: Finished difference Result 3734 states and 5253 transitions. [2022-11-20 10:42:43,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-20 10:42:43,526 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-11-20 10:42:43,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:43,534 INFO L225 Difference]: With dead ends: 3734 [2022-11-20 10:42:43,534 INFO L226 Difference]: Without dead ends: 3734 [2022-11-20 10:42:43,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=464, Invalid=1792, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 10:42:43,535 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 2517 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2520 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:43,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2520 Valid, 1942 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-20 10:42:43,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2022-11-20 10:42:43,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 2196. [2022-11-20 10:42:43,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 1977 states have (on average 1.4395548811330299) internal successors, (2846), 2098 states have internal predecessors, (2846), 90 states have call successors, (90), 44 states have call predecessors, (90), 86 states have return successors, (180), 53 states have call predecessors, (180), 90 states have call successors, (180) [2022-11-20 10:42:43,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 3116 transitions. [2022-11-20 10:42:43,598 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 3116 transitions. Word has length 56 [2022-11-20 10:42:43,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:43,599 INFO L495 AbstractCegarLoop]: Abstraction has 2196 states and 3116 transitions. [2022-11-20 10:42:43,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:43,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 3116 transitions. [2022-11-20 10:42:43,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-20 10:42:43,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:43,601 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:43,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-20 10:42:43,601 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:43,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:43,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1126246019, now seen corresponding path program 1 times [2022-11-20 10:42:43,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:43,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123499712] [2022-11-20 10:42:43,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:43,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:45,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:45,528 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:45,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:45,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123499712] [2022-11-20 10:42:45,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123499712] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:42:45,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489638844] [2022-11-20 10:42:45,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:45,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:42:45,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:42:45,531 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:42:45,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 10:42:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:45,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 10:42:45,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:42:46,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:42:46,954 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:42:46,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 9 [2022-11-20 10:42:47,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:47,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:42:47,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489638844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:47,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:42:47,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18] total 27 [2022-11-20 10:42:47,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650205834] [2022-11-20 10:42:47,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:47,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:42:47,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:47,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:42:47,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-11-20 10:42:47,026 INFO L87 Difference]: Start difference. First operand 2196 states and 3116 transitions. Second operand has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:47,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:47,775 INFO L93 Difference]: Finished difference Result 4056 states and 5810 transitions. [2022-11-20 10:42:47,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:42:47,783 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-11-20 10:42:47,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:47,792 INFO L225 Difference]: With dead ends: 4056 [2022-11-20 10:42:47,792 INFO L226 Difference]: Without dead ends: 4056 [2022-11-20 10:42:47,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=151, Invalid=1039, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 10:42:47,793 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 834 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 156 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:47,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 1672 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 323 Invalid, 0 Unknown, 156 Unchecked, 0.4s Time] [2022-11-20 10:42:47,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4056 states. [2022-11-20 10:42:47,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4056 to 3822. [2022-11-20 10:42:47,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3822 states, 3499 states have (on average 1.4444126893398115) internal successors, (5054), 3651 states have internal predecessors, (5054), 158 states have call successors, (158), 80 states have call predecessors, (158), 122 states have return successors, (315), 90 states have call predecessors, (315), 158 states have call successors, (315) [2022-11-20 10:42:47,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3822 states to 3822 states and 5527 transitions. [2022-11-20 10:42:47,879 INFO L78 Accepts]: Start accepts. Automaton has 3822 states and 5527 transitions. Word has length 56 [2022-11-20 10:42:47,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:47,880 INFO L495 AbstractCegarLoop]: Abstraction has 3822 states and 5527 transitions. [2022-11-20 10:42:47,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:47,880 INFO L276 IsEmpty]: Start isEmpty. Operand 3822 states and 5527 transitions. [2022-11-20 10:42:47,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-20 10:42:47,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:47,881 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:47,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:42:48,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2022-11-20 10:42:48,089 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:48,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:48,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1718684918, now seen corresponding path program 1 times [2022-11-20 10:42:48,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:48,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652924610] [2022-11-20 10:42:48,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:48,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:48,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:48,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 10:42:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:48,289 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 10:42:48,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:48,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652924610] [2022-11-20 10:42:48,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652924610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:48,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:48,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:42:48,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233760368] [2022-11-20 10:42:48,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:48,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:42:48,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:48,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:42:48,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:42:48,290 INFO L87 Difference]: Start difference. First operand 3822 states and 5527 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:42:48,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:48,481 INFO L93 Difference]: Finished difference Result 4818 states and 6870 transitions. [2022-11-20 10:42:48,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:42:48,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-11-20 10:42:48,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:48,492 INFO L225 Difference]: With dead ends: 4818 [2022-11-20 10:42:48,492 INFO L226 Difference]: Without dead ends: 4818 [2022-11-20 10:42:48,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:42:48,493 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 455 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:48,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 392 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:42:48,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2022-11-20 10:42:48,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 3821. [2022-11-20 10:42:48,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3821 states, 3499 states have (on average 1.4318376679051157) internal successors, (5010), 3650 states have internal predecessors, (5010), 158 states have call successors, (158), 80 states have call predecessors, (158), 122 states have return successors, (315), 90 states have call predecessors, (315), 158 states have call successors, (315) [2022-11-20 10:42:48,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3821 states to 3821 states and 5483 transitions. [2022-11-20 10:42:48,631 INFO L78 Accepts]: Start accepts. Automaton has 3821 states and 5483 transitions. Word has length 57 [2022-11-20 10:42:48,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:48,631 INFO L495 AbstractCegarLoop]: Abstraction has 3821 states and 5483 transitions. [2022-11-20 10:42:48,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:42:48,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3821 states and 5483 transitions. [2022-11-20 10:42:48,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-20 10:42:48,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:48,633 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:48,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-20 10:42:48,633 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:48,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:48,634 INFO L85 PathProgramCache]: Analyzing trace with hash -886974100, now seen corresponding path program 1 times [2022-11-20 10:42:48,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:48,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129431556] [2022-11-20 10:42:48,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:48,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:49,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:49,251 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:49,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:49,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129431556] [2022-11-20 10:42:49,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129431556] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:42:49,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185342971] [2022-11-20 10:42:49,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:49,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:42:49,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:42:49,253 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:42:49,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 10:42:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:49,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 10:42:49,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:42:50,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:42:50,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-20 10:42:50,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:50,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:42:50,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185342971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:50,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:42:50,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2022-11-20 10:42:50,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950265545] [2022-11-20 10:42:50,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:50,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:42:50,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:50,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:42:50,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:42:50,272 INFO L87 Difference]: Start difference. First operand 3821 states and 5483 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:51,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:51,221 INFO L93 Difference]: Finished difference Result 4517 states and 6402 transitions. [2022-11-20 10:42:51,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 10:42:51,221 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-11-20 10:42:51,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:51,231 INFO L225 Difference]: With dead ends: 4517 [2022-11-20 10:42:51,231 INFO L226 Difference]: Without dead ends: 4517 [2022-11-20 10:42:51,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812 [2022-11-20 10:42:51,233 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 1006 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:51,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 753 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:42:51,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4517 states. [2022-11-20 10:42:51,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4517 to 3275. [2022-11-20 10:42:51,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3275 states, 3013 states have (on average 1.4211749087288417) internal successors, (4282), 3136 states have internal predecessors, (4282), 126 states have call successors, (126), 62 states have call predecessors, (126), 94 states have return successors, (251), 76 states have call predecessors, (251), 126 states have call successors, (251) [2022-11-20 10:42:51,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3275 states to 3275 states and 4659 transitions. [2022-11-20 10:42:51,308 INFO L78 Accepts]: Start accepts. Automaton has 3275 states and 4659 transitions. Word has length 56 [2022-11-20 10:42:51,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:51,309 INFO L495 AbstractCegarLoop]: Abstraction has 3275 states and 4659 transitions. [2022-11-20 10:42:51,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:51,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states and 4659 transitions. [2022-11-20 10:42:51,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-20 10:42:51,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:51,310 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:51,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:42:51,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:42:51,524 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:51,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:51,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1696320726, now seen corresponding path program 1 times [2022-11-20 10:42:51,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:51,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790906460] [2022-11-20 10:42:51,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:51,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:52,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:52,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:42:52,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:52,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790906460] [2022-11-20 10:42:52,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790906460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:52,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:52,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 10:42:52,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380692776] [2022-11-20 10:42:52,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:52,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 10:42:52,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:52,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 10:42:52,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:42:52,582 INFO L87 Difference]: Start difference. First operand 3275 states and 4659 transitions. Second operand has 14 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:54,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:54,629 INFO L93 Difference]: Finished difference Result 5333 states and 7532 transitions. [2022-11-20 10:42:54,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-20 10:42:54,630 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-11-20 10:42:54,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:54,640 INFO L225 Difference]: With dead ends: 5333 [2022-11-20 10:42:54,640 INFO L226 Difference]: Without dead ends: 5333 [2022-11-20 10:42:54,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=192, Invalid=678, Unknown=0, NotChecked=0, Total=870 [2022-11-20 10:42:54,641 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 1188 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:54,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 2268 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 10:42:54,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5333 states. [2022-11-20 10:42:54,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5333 to 3665. [2022-11-20 10:42:54,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3665 states, 3362 states have (on average 1.433372992266508) internal successors, (4819), 3502 states have internal predecessors, (4819), 146 states have call successors, (146), 76 states have call predecessors, (146), 115 states have return successors, (291), 86 states have call predecessors, (291), 146 states have call successors, (291) [2022-11-20 10:42:54,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3665 states to 3665 states and 5256 transitions. [2022-11-20 10:42:54,767 INFO L78 Accepts]: Start accepts. Automaton has 3665 states and 5256 transitions. Word has length 56 [2022-11-20 10:42:54,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:54,768 INFO L495 AbstractCegarLoop]: Abstraction has 3665 states and 5256 transitions. [2022-11-20 10:42:54,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:42:54,768 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 5256 transitions. [2022-11-20 10:42:54,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-20 10:42:54,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:54,770 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:54,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-20 10:42:54,770 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:54,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:54,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1739624693, now seen corresponding path program 1 times [2022-11-20 10:42:54,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:54,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799444238] [2022-11-20 10:42:54,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:54,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:56,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:42:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:56,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 10:42:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:56,024 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:42:56,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:42:56,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799444238] [2022-11-20 10:42:56,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799444238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:56,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:56,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-20 10:42:56,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532311065] [2022-11-20 10:42:56,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:56,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 10:42:56,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:42:56,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 10:42:56,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:42:56,026 INFO L87 Difference]: Start difference. First operand 3665 states and 5256 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:42:59,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:59,386 INFO L93 Difference]: Finished difference Result 7616 states and 10949 transitions. [2022-11-20 10:42:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 10:42:59,386 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 58 [2022-11-20 10:42:59,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:59,408 INFO L225 Difference]: With dead ends: 7616 [2022-11-20 10:42:59,408 INFO L226 Difference]: Without dead ends: 7612 [2022-11-20 10:42:59,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=329, Invalid=931, Unknown=0, NotChecked=0, Total=1260 [2022-11-20 10:42:59,409 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 1931 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:59,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1931 Valid, 2345 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-20 10:42:59,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7612 states. [2022-11-20 10:42:59,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7612 to 3653. [2022-11-20 10:42:59,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3653 states, 3350 states have (on average 1.4313432835820896) internal successors, (4795), 3490 states have internal predecessors, (4795), 146 states have call successors, (146), 76 states have call predecessors, (146), 115 states have return successors, (291), 86 states have call predecessors, (291), 146 states have call successors, (291) [2022-11-20 10:42:59,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3653 states to 3653 states and 5232 transitions. [2022-11-20 10:42:59,517 INFO L78 Accepts]: Start accepts. Automaton has 3653 states and 5232 transitions. Word has length 58 [2022-11-20 10:42:59,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:59,517 INFO L495 AbstractCegarLoop]: Abstraction has 3653 states and 5232 transitions. [2022-11-20 10:42:59,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:42:59,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3653 states and 5232 transitions. [2022-11-20 10:42:59,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-20 10:42:59,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:59,519 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:59,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-20 10:42:59,520 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:42:59,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:59,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1949478456, now seen corresponding path program 1 times [2022-11-20 10:42:59,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:42:59,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796543455] [2022-11-20 10:42:59,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:59,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:42:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:01,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:43:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:01,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-20 10:43:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:01,421 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:43:01,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:43:01,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796543455] [2022-11-20 10:43:01,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796543455] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:01,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752536278] [2022-11-20 10:43:01,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:01,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:01,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:43:01,423 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:43:01,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 10:43:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:01,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-20 10:43:01,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:43:01,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:43:02,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:43:02,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:43:02,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2022-11-20 10:43:02,662 INFO L321 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-11-20 10:43:02,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-20 10:43:02,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-20 10:43:02,776 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:02,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:43:02,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752536278] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:02,942 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:43:02,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 25 [2022-11-20 10:43:02,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992937130] [2022-11-20 10:43:02,943 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:43:02,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-20 10:43:02,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:43:02,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-20 10:43:02,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2022-11-20 10:43:02,944 INFO L87 Difference]: Start difference. First operand 3653 states and 5232 transitions. Second operand has 26 states, 25 states have (on average 4.16) internal successors, (104), 23 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:43:06,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:06,894 INFO L93 Difference]: Finished difference Result 6334 states and 9180 transitions. [2022-11-20 10:43:06,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-20 10:43:06,895 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.16) internal successors, (104), 23 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 58 [2022-11-20 10:43:06,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:06,909 INFO L225 Difference]: With dead ends: 6334 [2022-11-20 10:43:06,910 INFO L226 Difference]: Without dead ends: 6334 [2022-11-20 10:43:06,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=670, Invalid=2870, Unknown=0, NotChecked=0, Total=3540 [2022-11-20 10:43:06,911 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 3364 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 1458 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3365 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 1658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:43:06,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3365 Valid, 1830 Invalid, 1658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1458 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 10:43:06,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6334 states. [2022-11-20 10:43:07,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6334 to 3733. [2022-11-20 10:43:07,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3733 states, 3430 states have (on average 1.4294460641399418) internal successors, (4903), 3562 states have internal predecessors, (4903), 146 states have call successors, (146), 76 states have call predecessors, (146), 115 states have return successors, (291), 94 states have call predecessors, (291), 146 states have call successors, (291) [2022-11-20 10:43:07,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 5340 transitions. [2022-11-20 10:43:07,045 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 5340 transitions. Word has length 58 [2022-11-20 10:43:07,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:07,046 INFO L495 AbstractCegarLoop]: Abstraction has 3733 states and 5340 transitions. [2022-11-20 10:43:07,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.16) internal successors, (104), 23 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:43:07,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 5340 transitions. [2022-11-20 10:43:07,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-20 10:43:07,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:07,048 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:43:07,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-11-20 10:43:07,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:07,255 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:43:07,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:07,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1949478457, now seen corresponding path program 1 times [2022-11-20 10:43:07,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:43:07,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156436886] [2022-11-20 10:43:07,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:07,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:43:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:09,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:43:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:09,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-20 10:43:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:09,326 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:43:09,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:43:09,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156436886] [2022-11-20 10:43:09,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156436886] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:09,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284754762] [2022-11-20 10:43:09,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:09,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:09,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:43:09,329 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:43:09,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 10:43:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:09,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 78 conjunts are in the unsatisfiable core [2022-11-20 10:43:09,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:43:09,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:43:09,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:43:10,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:43:10,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:43:10,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:43:10,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2022-11-20 10:43:10,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:43:10,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2022-11-20 10:43:11,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:43:11,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-20 10:43:11,083 INFO L321 Elim1Store]: treesize reduction 4, result has 71.4 percent of original size [2022-11-20 10:43:11,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2022-11-20 10:43:11,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:43:11,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 9 [2022-11-20 10:43:11,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:43:11,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-20 10:43:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:11,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:43:12,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284754762] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:12,267 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:43:12,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13] total 31 [2022-11-20 10:43:12,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376377311] [2022-11-20 10:43:12,267 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:43:12,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-20 10:43:12,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:43:12,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-20 10:43:12,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1244, Unknown=0, NotChecked=0, Total=1406 [2022-11-20 10:43:12,269 INFO L87 Difference]: Start difference. First operand 3733 states and 5340 transitions. Second operand has 32 states, 31 states have (on average 3.3870967741935485) internal successors, (105), 29 states have internal predecessors, (105), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:43:19,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:19,620 INFO L93 Difference]: Finished difference Result 7246 states and 10656 transitions. [2022-11-20 10:43:19,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-20 10:43:19,621 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.3870967741935485) internal successors, (105), 29 states have internal predecessors, (105), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 58 [2022-11-20 10:43:19,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:19,637 INFO L225 Difference]: With dead ends: 7246 [2022-11-20 10:43:19,638 INFO L226 Difference]: Without dead ends: 7246 [2022-11-20 10:43:19,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1396 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=898, Invalid=4072, Unknown=0, NotChecked=0, Total=4970 [2022-11-20 10:43:19,639 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 3711 mSDsluCounter, 2118 mSDsCounter, 0 mSdLazyCounter, 2265 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3712 SdHoareTripleChecker+Valid, 2257 SdHoareTripleChecker+Invalid, 2484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 2265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:43:19,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3712 Valid, 2257 Invalid, 2484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 2265 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-20 10:43:19,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7246 states. [2022-11-20 10:43:19,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7246 to 3733. [2022-11-20 10:43:19,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3733 states, 3430 states have (on average 1.4271137026239067) internal successors, (4895), 3562 states have internal predecessors, (4895), 146 states have call successors, (146), 76 states have call predecessors, (146), 115 states have return successors, (291), 94 states have call predecessors, (291), 146 states have call successors, (291) [2022-11-20 10:43:19,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 5332 transitions. [2022-11-20 10:43:19,762 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 5332 transitions. Word has length 58 [2022-11-20 10:43:19,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:19,762 INFO L495 AbstractCegarLoop]: Abstraction has 3733 states and 5332 transitions. [2022-11-20 10:43:19,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.3870967741935485) internal successors, (105), 29 states have internal predecessors, (105), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:43:19,763 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 5332 transitions. [2022-11-20 10:43:19,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-20 10:43:19,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:19,764 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:43:19,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-20 10:43:19,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2022-11-20 10:43:19,972 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:43:19,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:19,972 INFO L85 PathProgramCache]: Analyzing trace with hash 193064434, now seen corresponding path program 1 times [2022-11-20 10:43:19,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:43:19,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909463579] [2022-11-20 10:43:19,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:19,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:43:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:21,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:43:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:21,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 10:43:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:21,376 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:43:21,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:43:21,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909463579] [2022-11-20 10:43:21,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909463579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:43:21,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:43:21,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-20 10:43:21,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557342621] [2022-11-20 10:43:21,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:43:21,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 10:43:21,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:43:21,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 10:43:21,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:43:21,378 INFO L87 Difference]: Start difference. First operand 3733 states and 5332 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:43:25,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:25,175 INFO L93 Difference]: Finished difference Result 7935 states and 11338 transitions. [2022-11-20 10:43:25,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 10:43:25,176 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 58 [2022-11-20 10:43:25,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:25,192 INFO L225 Difference]: With dead ends: 7935 [2022-11-20 10:43:25,192 INFO L226 Difference]: Without dead ends: 7923 [2022-11-20 10:43:25,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=373, Invalid=1109, Unknown=0, NotChecked=0, Total=1482 [2022-11-20 10:43:25,193 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 1923 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 2152 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:43:25,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1923 Valid, 2152 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-20 10:43:25,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7923 states. [2022-11-20 10:43:25,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7923 to 3697. [2022-11-20 10:43:25,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3697 states, 3394 states have (on average 1.4210371243370654) internal successors, (4823), 3526 states have internal predecessors, (4823), 146 states have call successors, (146), 76 states have call predecessors, (146), 115 states have return successors, (291), 94 states have call predecessors, (291), 146 states have call successors, (291) [2022-11-20 10:43:25,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3697 states to 3697 states and 5260 transitions. [2022-11-20 10:43:25,311 INFO L78 Accepts]: Start accepts. Automaton has 3697 states and 5260 transitions. Word has length 58 [2022-11-20 10:43:25,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:25,312 INFO L495 AbstractCegarLoop]: Abstraction has 3697 states and 5260 transitions. [2022-11-20 10:43:25,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:43:25,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3697 states and 5260 transitions. [2022-11-20 10:43:25,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 10:43:25,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:25,314 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:43:25,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-20 10:43:25,314 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:43:25,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:25,315 INFO L85 PathProgramCache]: Analyzing trace with hash -411669398, now seen corresponding path program 1 times [2022-11-20 10:43:25,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:43:25,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431911817] [2022-11-20 10:43:25,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:25,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:43:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:26,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:43:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:26,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-20 10:43:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:26,117 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 10:43:26,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:43:26,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431911817] [2022-11-20 10:43:26,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431911817] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:26,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111899386] [2022-11-20 10:43:26,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:26,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:26,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:43:26,120 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:43:26,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-20 10:43:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:26,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 59 conjunts are in the unsatisfiable core [2022-11-20 10:43:26,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:43:26,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:43:27,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:43:27,507 INFO L321 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2022-11-20 10:43:27,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 37 [2022-11-20 10:43:27,725 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:43:27,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-20 10:43:27,732 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:27,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:43:27,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111899386] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:27,893 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:43:27,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2022-11-20 10:43:27,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699442629] [2022-11-20 10:43:27,894 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:43:27,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 10:43:27,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:43:27,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 10:43:27,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2022-11-20 10:43:27,895 INFO L87 Difference]: Start difference. First operand 3697 states and 5260 transitions. Second operand has 22 states, 21 states have (on average 5.142857142857143) internal successors, (108), 20 states have internal predecessors, (108), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:43:30,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:30,267 INFO L93 Difference]: Finished difference Result 7588 states and 10859 transitions. [2022-11-20 10:43:30,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-20 10:43:30,268 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.142857142857143) internal successors, (108), 20 states have internal predecessors, (108), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 59 [2022-11-20 10:43:30,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:30,280 INFO L225 Difference]: With dead ends: 7588 [2022-11-20 10:43:30,280 INFO L226 Difference]: Without dead ends: 7588 [2022-11-20 10:43:30,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=301, Invalid=1259, Unknown=0, NotChecked=0, Total=1560 [2022-11-20 10:43:30,281 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1070 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 2597 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 392 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:43:30,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 2597 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1138 Invalid, 0 Unknown, 392 Unchecked, 1.2s Time] [2022-11-20 10:43:30,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7588 states. [2022-11-20 10:43:30,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7588 to 6837. [2022-11-20 10:43:30,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6837 states, 6299 states have (on average 1.4218129861882838) internal successors, (8956), 6514 states have internal predecessors, (8956), 274 states have call successors, (274), 150 states have call predecessors, (274), 222 states have return successors, (535), 172 states have call predecessors, (535), 274 states have call successors, (535) [2022-11-20 10:43:30,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6837 states to 6837 states and 9765 transitions. [2022-11-20 10:43:30,426 INFO L78 Accepts]: Start accepts. Automaton has 6837 states and 9765 transitions. Word has length 59 [2022-11-20 10:43:30,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:30,426 INFO L495 AbstractCegarLoop]: Abstraction has 6837 states and 9765 transitions. [2022-11-20 10:43:30,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.142857142857143) internal successors, (108), 20 states have internal predecessors, (108), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:43:30,427 INFO L276 IsEmpty]: Start isEmpty. Operand 6837 states and 9765 transitions. [2022-11-20 10:43:30,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 10:43:30,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:30,428 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:43:30,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-20 10:43:30,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:30,636 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:43:30,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:30,636 INFO L85 PathProgramCache]: Analyzing trace with hash -411669397, now seen corresponding path program 1 times [2022-11-20 10:43:30,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:43:30,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130421952] [2022-11-20 10:43:30,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:30,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:43:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:31,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:43:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:31,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-20 10:43:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:32,035 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 10:43:32,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:43:32,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130421952] [2022-11-20 10:43:32,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130421952] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:32,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140209108] [2022-11-20 10:43:32,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:32,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:32,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:43:32,037 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:43:32,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-20 10:43:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:32,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 77 conjunts are in the unsatisfiable core [2022-11-20 10:43:32,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:43:32,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:43:32,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:43:33,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:43:33,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:43:34,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:43:34,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-11-20 10:43:34,048 INFO L321 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-11-20 10:43:34,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2022-11-20 10:43:34,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:43:34,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-20 10:43:34,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:43:34,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-20 10:43:34,515 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:34,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:43:39,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140209108] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:39,099 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:43:39,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 26 [2022-11-20 10:43:39,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082070428] [2022-11-20 10:43:39,099 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:43:39,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 10:43:39,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:43:39,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 10:43:39,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2022-11-20 10:43:39,101 INFO L87 Difference]: Start difference. First operand 6837 states and 9765 transitions. Second operand has 27 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 25 states have internal predecessors, (109), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:43:41,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:41,562 INFO L93 Difference]: Finished difference Result 13896 states and 20203 transitions. [2022-11-20 10:43:41,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 10:43:41,563 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 25 states have internal predecessors, (109), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 59 [2022-11-20 10:43:41,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:41,588 INFO L225 Difference]: With dead ends: 13896 [2022-11-20 10:43:41,588 INFO L226 Difference]: Without dead ends: 13896 [2022-11-20 10:43:41,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=286, Invalid=1876, Unknown=0, NotChecked=0, Total=2162 [2022-11-20 10:43:41,589 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1203 mSDsluCounter, 2033 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 2231 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 416 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:43:41,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 2231 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 808 Invalid, 0 Unknown, 416 Unchecked, 1.1s Time] [2022-11-20 10:43:41,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13896 states. [2022-11-20 10:43:41,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13896 to 12493. [2022-11-20 10:43:41,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12493 states, 11527 states have (on average 1.4326364188427172) internal successors, (16514), 11892 states have internal predecessors, (16514), 514 states have call successors, (514), 274 states have call predecessors, (514), 410 states have return successors, (1005), 326 states have call predecessors, (1005), 514 states have call successors, (1005) [2022-11-20 10:43:41,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12493 states to 12493 states and 18033 transitions. [2022-11-20 10:43:41,841 INFO L78 Accepts]: Start accepts. Automaton has 12493 states and 18033 transitions. Word has length 59 [2022-11-20 10:43:41,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:41,841 INFO L495 AbstractCegarLoop]: Abstraction has 12493 states and 18033 transitions. [2022-11-20 10:43:41,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 25 states have internal predecessors, (109), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:43:41,842 INFO L276 IsEmpty]: Start isEmpty. Operand 12493 states and 18033 transitions. [2022-11-20 10:43:41,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 10:43:41,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:41,843 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:43:41,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-20 10:43:42,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:42,050 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:43:42,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:42,051 INFO L85 PathProgramCache]: Analyzing trace with hash -627848605, now seen corresponding path program 1 times [2022-11-20 10:43:42,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:43:42,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250117434] [2022-11-20 10:43:42,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:42,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:43:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:43,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:43:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:43,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-20 10:43:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:43,808 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:43:43,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:43:43,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250117434] [2022-11-20 10:43:43,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250117434] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:43,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4785903] [2022-11-20 10:43:43,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:43,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:43,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:43:43,811 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:43:43,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-20 10:43:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:44,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 78 conjunts are in the unsatisfiable core [2022-11-20 10:43:44,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:43:44,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:43:44,926 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-11-20 10:43:44,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2022-11-20 10:43:45,160 INFO L321 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-11-20 10:43:45,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-20 10:43:45,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-20 10:43:45,246 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:45,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:43:45,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4785903] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:45,390 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:43:45,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 24 [2022-11-20 10:43:45,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887035174] [2022-11-20 10:43:45,391 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:43:45,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 10:43:45,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:43:45,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 10:43:45,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=616, Unknown=0, NotChecked=0, Total=702 [2022-11-20 10:43:45,393 INFO L87 Difference]: Start difference. First operand 12493 states and 18033 transitions. Second operand has 25 states, 24 states have (on average 4.416666666666667) internal successors, (106), 21 states have internal predecessors, (106), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:43:50,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:50,593 INFO L93 Difference]: Finished difference Result 18602 states and 27007 transitions. [2022-11-20 10:43:50,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-20 10:43:50,593 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.416666666666667) internal successors, (106), 21 states have internal predecessors, (106), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 59 [2022-11-20 10:43:50,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:50,629 INFO L225 Difference]: With dead ends: 18602 [2022-11-20 10:43:50,630 INFO L226 Difference]: Without dead ends: 18602 [2022-11-20 10:43:50,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=494, Invalid=2158, Unknown=0, NotChecked=0, Total=2652 [2022-11-20 10:43:50,631 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 2100 mSDsluCounter, 3770 mSDsCounter, 0 mSdLazyCounter, 2603 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2100 SdHoareTripleChecker+Valid, 4067 SdHoareTripleChecker+Invalid, 2672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:43:50,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2100 Valid, 4067 Invalid, 2672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2603 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-20 10:43:50,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18602 states. [2022-11-20 10:43:50,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18602 to 13015. [2022-11-20 10:43:50,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13015 states, 11993 states have (on average 1.4308346535479028) internal successors, (17160), 12368 states have internal predecessors, (17160), 546 states have call successors, (546), 290 states have call predecessors, (546), 434 states have return successors, (1069), 356 states have call predecessors, (1069), 546 states have call successors, (1069) [2022-11-20 10:43:50,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13015 states to 13015 states and 18775 transitions. [2022-11-20 10:43:50,929 INFO L78 Accepts]: Start accepts. Automaton has 13015 states and 18775 transitions. Word has length 59 [2022-11-20 10:43:50,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:50,929 INFO L495 AbstractCegarLoop]: Abstraction has 13015 states and 18775 transitions. [2022-11-20 10:43:50,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.416666666666667) internal successors, (106), 21 states have internal predecessors, (106), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:43:50,930 INFO L276 IsEmpty]: Start isEmpty. Operand 13015 states and 18775 transitions. [2022-11-20 10:43:50,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 10:43:50,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:50,931 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:43:50,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-20 10:43:51,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2022-11-20 10:43:51,139 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:43:51,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:51,139 INFO L85 PathProgramCache]: Analyzing trace with hash -627848604, now seen corresponding path program 1 times [2022-11-20 10:43:51,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:43:51,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144997829] [2022-11-20 10:43:51,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:51,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:43:51,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:53,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:43:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:53,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-20 10:43:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:53,083 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:43:53,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:43:53,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144997829] [2022-11-20 10:43:53,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144997829] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:53,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421891131] [2022-11-20 10:43:53,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:53,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:43:53,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:43:53,085 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:43:53,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-20 10:43:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:53,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-20 10:43:53,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:43:53,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:43:53,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:43:54,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:43:54,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:43:54,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:43:54,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2022-11-20 10:43:54,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:43:54,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2022-11-20 10:43:55,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:43:55,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:43:55,155 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-20 10:43:55,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-20 10:43:55,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-20 10:43:55,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-20 10:43:55,435 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:43:55,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:43:57,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421891131] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:57,899 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:43:57,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 25 [2022-11-20 10:43:57,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262708625] [2022-11-20 10:43:57,900 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:43:57,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-20 10:43:57,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:43:57,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-20 10:43:57,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=818, Unknown=0, NotChecked=0, Total=930 [2022-11-20 10:43:57,901 INFO L87 Difference]: Start difference. First operand 13015 states and 18775 transitions. Second operand has 26 states, 25 states have (on average 4.28) internal successors, (107), 22 states have internal predecessors, (107), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:44:04,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:04,952 INFO L93 Difference]: Finished difference Result 20347 states and 29505 transitions. [2022-11-20 10:44:04,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 10:44:04,953 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.28) internal successors, (107), 22 states have internal predecessors, (107), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 59 [2022-11-20 10:44:04,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:04,981 INFO L225 Difference]: With dead ends: 20347 [2022-11-20 10:44:04,981 INFO L226 Difference]: Without dead ends: 20347 [2022-11-20 10:44:04,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=512, Invalid=2350, Unknown=0, NotChecked=0, Total=2862 [2022-11-20 10:44:04,982 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 2142 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 3148 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 3818 SdHoareTripleChecker+Invalid, 3218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:44:04,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2142 Valid, 3818 Invalid, 3218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3148 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-20 10:44:04,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20347 states. [2022-11-20 10:44:05,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20347 to 13325. [2022-11-20 10:44:05,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13325 states, 12303 states have (on average 1.4274567178736894) internal successors, (17562), 12648 states have internal predecessors, (17562), 546 states have call successors, (546), 290 states have call predecessors, (546), 434 states have return successors, (1069), 386 states have call predecessors, (1069), 546 states have call successors, (1069) [2022-11-20 10:44:05,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13325 states to 13325 states and 19177 transitions. [2022-11-20 10:44:05,307 INFO L78 Accepts]: Start accepts. Automaton has 13325 states and 19177 transitions. Word has length 59 [2022-11-20 10:44:05,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:05,308 INFO L495 AbstractCegarLoop]: Abstraction has 13325 states and 19177 transitions. [2022-11-20 10:44:05,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.28) internal successors, (107), 22 states have internal predecessors, (107), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:44:05,308 INFO L276 IsEmpty]: Start isEmpty. Operand 13325 states and 19177 transitions. [2022-11-20 10:44:05,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 10:44:05,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:05,310 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:44:05,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-20 10:44:05,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2022-11-20 10:44:05,517 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-20 10:44:05,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:05,519 INFO L85 PathProgramCache]: Analyzing trace with hash -990115430, now seen corresponding path program 1 times [2022-11-20 10:44:05,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:05,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053557643] [2022-11-20 10:44:05,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:05,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:09,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:44:09,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:09,782 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:09,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:09,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053557643] [2022-11-20 10:44:09,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053557643] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:44:09,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333847254] [2022-11-20 10:44:09,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:09,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:44:09,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:44:09,784 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:44:09,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bc3c3e-e470-4a04-b80c-36c5ee87d331/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-20 10:44:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:10,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 87 conjunts are in the unsatisfiable core [2022-11-20 10:44:10,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:44:10,135 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-20 10:44:10,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-20 10:44:10,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:44:10,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:44:11,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:44:11,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2022-11-20 10:44:11,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:44:11,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2022-11-20 10:44:11,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:44:11,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 10:44:11,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:44:11,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 10:44:11,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:44:11,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:44:11,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:44:11,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:44:12,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:44:12,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-11-20 10:44:12,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:44:12,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-11-20 10:44:12,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:44:12,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:44:12,274 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-20 10:44:12,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 51 [2022-11-20 10:44:12,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-11-20 10:44:12,910 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:44:12,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 15 [2022-11-20 10:44:12,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:44:12,929 INFO L321 Elim1Store]: treesize reduction 19, result has 29.6 percent of original size [2022-11-20 10:44:12,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 22 [2022-11-20 10:44:13,020 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:13,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:44:13,637 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_append_one_~list#1.base|)) (.cse3 (+ (* ~unnamed1~0~LIST_END 4) |c_ULTIMATE.start_append_one_~list#1.offset|)) (.cse1 (+ |c_~#list~0.offset| (* ~unnamed1~0~LIST_BEG 4)))) (and (forall ((v_ArrVal_2014 Int)) (= (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_append_one_~list#1.base| (store .cse2 .cse3 v_ArrVal_2014)))) (select .cse0 (select (select .cse0 |c_~#list~0.base|) .cse1))) 4) 0)) (forall ((v_ArrVal_2014 Int) (v_ArrVal_2013 (Array Int Int))) (= 0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_append_one_~list#1.base| v_ArrVal_2013) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_append_one_~list#1.base| (store .cse2 .cse3 v_ArrVal_2014)) |c_~#list~0.base|) .cse1)) 4))))) is different from false [2022-11-20 10:44:18,607 INFO L321 Elim1Store]: treesize reduction 62, result has 47.9 percent of original size [2022-11-20 10:44:18,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 161 treesize of output 122 [2022-11-20 10:44:19,045 INFO L321 Elim1Store]: treesize reduction 126, result has 61.2 percent of original size [2022-11-20 10:44:19,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 3343 treesize of output 3199 [2022-11-20 10:44:19,204 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:44:19,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4919 treesize of output 4569 [2022-11-20 10:44:19,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:44:21,748 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:44:36,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 630 treesize of output 624 [2022-11-20 10:44:45,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 630 treesize of output 624 [2022-11-20 10:44:55,074 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:44:55,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1936 treesize of output 1928 [2022-11-20 10:45:20,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 630 treesize of output 624 [2022-11-20 10:45:32,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 630 treesize of output 624 [2022-11-20 10:48:05,932 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:48:05,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 318 treesize of output 322 [2022-11-20 10:48:09,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 383 treesize of output 379 [2022-11-20 10:48:11,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 383 treesize of output 379 [2022-11-20 10:48:12,261 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:48:12,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 408 treesize of output 410 [2022-11-20 10:48:14,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 383 treesize of output 379 [2022-11-20 10:48:18,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 339 treesize of output 335 [2022-11-20 10:48:21,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 343 treesize of output 339 [2022-11-20 10:48:23,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 343 treesize of output 339 [2022-11-20 10:48:25,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 235 [2022-11-20 10:48:34,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 314 treesize of output 310 [2022-11-20 10:48:35,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 224 treesize of output 220 [2022-11-20 10:48:38,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 262 [2022-11-20 10:48:41,395 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:48:41,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 575 treesize of output 575 [2022-11-20 10:48:43,340 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:48:43,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 451 treesize of output 453 [2022-11-20 10:48:44,931 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:48:44,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 39 [2022-11-20 10:48:48,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 325 [2022-11-20 10:48:49,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 235 [2022-11-20 10:48:50,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 322 treesize of output 318 [2022-11-20 10:49:55,779 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:49:55,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 135 [2022-11-20 10:49:56,228 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:49:56,682 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:49:56,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 39 [2022-11-20 10:49:57,035 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:49:57,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 39 [2022-11-20 10:49:57,679 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:49:57,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 39 [2022-11-20 10:49:57,975 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:49:57,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 39 [2022-11-20 10:49:58,135 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:49:59,663 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:49:59,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 39 [2022-11-20 10:50:00,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:00,401 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:50:00,542 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:50:00,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 391 treesize of output 389 [2022-11-20 10:50:03,028 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:50:03,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:03,695 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:50:04,043 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:50:04,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:04,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:04,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:05,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:05,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:06,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:06,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:07,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:07,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:07,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:08,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:08,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:09,238 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:50:09,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 39 [2022-11-20 10:50:09,945 INFO L321 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2022-11-20 10:50:09,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 82 [2022-11-20 10:50:10,073 INFO L321 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2022-11-20 10:50:10,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 82 [2022-11-20 10:50:11,064 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:50:11,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:11,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:12,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:15,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:15,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:16,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 73 [2022-11-20 10:50:17,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-11-20 10:50:18,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 108 [2022-11-20 10:50:18,995 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:50:19,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 76 [2022-11-20 10:50:20,129 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:50:20,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 457 treesize of output 457 [2022-11-20 10:50:22,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:22,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:22,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:22,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:22,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:50:46,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 307 treesize of output 283 [2022-11-20 10:50:46,897 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:50:46,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 872 treesize of output 792 [2022-11-20 10:50:47,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 88 [2022-11-20 10:50:47,820 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:50:47,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1342 treesize of output 1238 [2022-11-20 10:50:48,987 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:50:48,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:50:48,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 40 [2022-11-20 10:50:49,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:50:49,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:50:49,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 40 [2022-11-20 10:50:49,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 347 treesize of output 287 [2022-11-20 10:50:49,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:50:49,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:50:49,220 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:50:49,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 644 treesize of output 588 [2022-11-20 10:50:49,276 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:50:49,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1694 treesize of output 1591 [2022-11-20 10:50:50,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:50:50,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:50:50,368 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:50:50,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 45 [2022-11-20 10:50:50,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:50:50,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:50:50,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:50:50,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:50:50,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 40 [2022-11-20 10:50:50,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 347 treesize of output 287 [2022-11-20 10:50:50,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:50:50,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:50:50,751 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:50:50,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2435 treesize of output 2181 [2022-11-20 10:51:01,295 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:51:01,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33974 treesize of output 30524 [2022-11-20 10:51:41,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:41,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:41,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 156 [2022-11-20 10:51:41,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:41,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:41,635 INFO L321 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-11-20 10:51:41,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 203 treesize of output 197 [2022-11-20 10:51:42,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:42,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:42,080 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-20 10:51:42,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 1 [2022-11-20 10:51:42,153 INFO L321 Elim1Store]: treesize reduction 25, result has 39.0 percent of original size [2022-11-20 10:51:42,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 978 treesize of output 929 [2022-11-20 10:51:43,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:51:43,443 INFO L321 Elim1Store]: treesize reduction 29, result has 29.3 percent of original size [2022-11-20 10:51:43,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 5864 treesize of output 5486 [2022-11-20 10:51:43,748 INFO L321 Elim1Store]: treesize reduction 12, result has 25.0 percent of original size [2022-11-20 10:51:43,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4864 treesize of output 4364 [2022-11-20 10:51:46,211 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:51:46,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 3652 treesize of output 1 [2022-11-20 10:51:46,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:46,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 8 [2022-11-20 10:51:46,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:46,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,316 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-20 10:51:46,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 167 treesize of output 1 [2022-11-20 10:51:46,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,350 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:51:46,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 1 [2022-11-20 10:51:46,424 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:51:46,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 3652 treesize of output 1 [2022-11-20 10:51:46,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,528 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,528 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:46,551 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-20 10:51:46,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 439 treesize of output 1 [2022-11-20 10:51:46,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,578 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,624 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:51:46,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 1 [2022-11-20 10:51:46,696 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:51:46,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1409 treesize of output 1269 [2022-11-20 10:51:46,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,712 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:46,778 INFO L321 Elim1Store]: treesize reduction 12, result has 70.7 percent of original size [2022-11-20 10:51:46,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1185 treesize of output 972 [2022-11-20 10:51:48,037 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:48,037 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:48,055 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:48,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:48,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:48,072 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-20 10:51:48,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 439 treesize of output 1 [2022-11-20 10:51:48,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:48,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:48,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:48,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:48,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:48,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:48,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:48,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:48,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:48,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:48,134 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:51:48,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 1 [2022-11-20 10:51:48,278 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:51:48,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 1 [2022-11-20 10:51:48,338 INFO L321 Elim1Store]: treesize reduction 32, result has 22.0 percent of original size [2022-11-20 10:51:48,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 470 treesize of output 444 [2022-11-20 10:51:51,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:51,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 29 [2022-11-20 10:51:51,729 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:51:51,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 337 treesize of output 345 [2022-11-20 10:51:54,053 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:51:54,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 376 treesize of output 334 [2022-11-20 10:51:54,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:54,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:54,309 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:51:54,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 366 treesize of output 1 [2022-11-20 10:51:54,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:54,380 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:51:54,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 1 [2022-11-20 10:51:54,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:54,422 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:54,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:54,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 366 treesize of output 228 [2022-11-20 10:51:54,486 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:51:54,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2419 treesize of output 1 [2022-11-20 10:51:54,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:54,607 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:51:54,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 247 treesize of output 1 [2022-11-20 10:51:54,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:54,641 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:51:54,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 781 treesize of output 1 [2022-11-20 10:51:54,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:54,705 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:51:54,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 247 treesize of output 1 [2022-11-20 10:51:54,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:54,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:54,737 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:54,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 8 [2022-11-20 10:51:54,770 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:54,785 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:51:54,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 1 [2022-11-20 10:51:54,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:54,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:55,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:51:55,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:55,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:55,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2022-11-20 10:51:55,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:55,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:55,653 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:51:55,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 48 [2022-11-20 10:51:55,931 INFO L321 Elim1Store]: treesize reduction 12, result has 25.0 percent of original size [2022-11-20 10:51:55,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 58 [2022-11-20 10:51:55,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:55,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:55,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:56,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 63 [2022-11-20 10:51:56,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:56,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:56,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:56,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2022-11-20 10:51:56,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-11-20 10:51:56,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:56,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:56,250 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:51:56,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 182 treesize of output 184 [2022-11-20 10:51:56,576 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:51:56,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 586 treesize of output 1 [2022-11-20 10:51:56,658 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:51:56,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2447 treesize of output 2297 [2022-11-20 10:51:58,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:58,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:58,245 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:51:58,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 270 treesize of output 292 [2022-11-20 10:51:58,725 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:51:58,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 428 treesize of output 1 [2022-11-20 10:51:58,750 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:58,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:58,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:58,781 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:51:58,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 294 treesize of output 1 [2022-11-20 10:51:58,863 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:51:58,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 552 treesize of output 1 [2022-11-20 10:51:58,916 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:51:58,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:58,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:58,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:58,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 260 treesize of output 248 [2022-11-20 10:51:59,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:59,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:59,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:59,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:59,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:59,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 62 [2022-11-20 10:51:59,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:59,695 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:59,696 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:59,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:59,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-11-20 10:51:59,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:51:59,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:59,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:51:59,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 212 [2022-11-20 10:52:00,125 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:00,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:00,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:00,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:00,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:00,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:00,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 84 [2022-11-20 10:52:00,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:00,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:00,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:00,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 199 treesize of output 157 [2022-11-20 10:52:00,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:00,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 125 [2022-11-20 10:52:00,691 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:00,692 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:00,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:00,723 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-20 10:52:00,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 234 treesize of output 1 [2022-11-20 10:52:01,169 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:01,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 538 treesize of output 1 [2022-11-20 10:52:01,330 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:01,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 1 [2022-11-20 10:52:01,393 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:01,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 219 treesize of output 1 [2022-11-20 10:52:01,439 INFO L321 Elim1Store]: treesize reduction 12, result has 25.0 percent of original size [2022-11-20 10:52:01,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 546 treesize of output 460 [2022-11-20 10:52:02,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:02,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:02,082 INFO L321 Elim1Store]: treesize reduction 29, result has 29.3 percent of original size [2022-11-20 10:52:02,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 22 [2022-11-20 10:52:02,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:02,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:02,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:02,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 56 [2022-11-20 10:52:02,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:02,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2022-11-20 10:52:02,249 INFO L321 Elim1Store]: treesize reduction 29, result has 29.3 percent of original size [2022-11-20 10:52:02,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 188 treesize of output 183 [2022-11-20 10:52:02,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:02,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:02,413 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:02,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 204 treesize of output 1 [2022-11-20 10:52:02,435 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:02,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:02,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:02,458 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-20 10:52:02,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 425 treesize of output 1 [2022-11-20 10:52:02,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:02,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:02,532 INFO L321 Elim1Store]: treesize reduction 29, result has 29.3 percent of original size [2022-11-20 10:52:02,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 338 treesize of output 289 [2022-11-20 10:52:02,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:02,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:02,646 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:02,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 1 [2022-11-20 10:52:02,659 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:02,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:02,718 INFO L321 Elim1Store]: treesize reduction 29, result has 29.3 percent of original size [2022-11-20 10:52:02,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 305 treesize of output 240 [2022-11-20 10:52:03,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2022-11-20 10:52:03,336 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:52:03,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 59 [2022-11-20 10:52:03,564 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:03,605 INFO L321 Elim1Store]: treesize reduction 5, result has 68.8 percent of original size [2022-11-20 10:52:03,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 46 [2022-11-20 10:52:03,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2022-11-20 10:52:03,942 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:52:03,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 59 [2022-11-20 10:52:04,381 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:52:04,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 67 [2022-11-20 10:52:04,650 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:52:04,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 54 [2022-11-20 10:52:04,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-20 10:52:05,123 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:52:05,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 57 [2022-11-20 10:52:05,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-11-20 10:52:05,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2022-11-20 10:52:06,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:06,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 51 [2022-11-20 10:52:06,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:06,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 41 [2022-11-20 10:52:06,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:06,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 35 [2022-11-20 10:52:07,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:07,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 72 [2022-11-20 10:52:07,727 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:07,887 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:52:07,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 54 [2022-11-20 10:52:08,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2022-11-20 10:52:08,349 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:52:08,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1292 treesize of output 1208 [2022-11-20 10:52:10,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 68 [2022-11-20 10:52:10,193 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:10,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:10,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 76 [2022-11-20 10:52:10,278 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:10,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 84 [2022-11-20 10:52:10,325 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:10,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 61 [2022-11-20 10:52:10,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 827 treesize of output 755 [2022-11-20 10:52:10,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:10,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 237 treesize of output 201 [2022-11-20 10:52:10,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:10,568 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,578 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 97 [2022-11-20 10:52:10,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:52:10,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:10,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:10,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:10,893 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2022-11-20 10:52:10,976 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:10,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-20 10:52:11,054 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:11,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:11,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:11,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:11,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:11,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 58 [2022-11-20 10:52:11,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:11,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 69 [2022-11-20 10:52:11,309 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:11,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:11,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 35 [2022-11-20 10:52:11,542 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:11,542 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:11,552 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:11,558 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:11,568 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:11,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:11,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:11,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:11,580 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:11,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:11,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:11,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2022-11-20 10:52:11,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:11,850 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:11,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:11,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:11,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2022-11-20 10:52:12,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:52:12,385 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:52:12,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 58 [2022-11-20 10:52:12,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-11-20 10:52:12,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:12,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 39 [2022-11-20 10:52:12,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 74 [2022-11-20 10:52:13,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 68 [2022-11-20 10:52:13,148 INFO L321 Elim1Store]: treesize reduction 32, result has 22.0 percent of original size [2022-11-20 10:52:13,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 418 treesize of output 380 [2022-11-20 10:52:14,272 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:52:14,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24242 treesize of output 21898 [2022-11-20 10:52:26,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,037 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:26,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 173 treesize of output 1 [2022-11-20 10:52:26,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,083 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:26,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 578 treesize of output 1 [2022-11-20 10:52:26,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,132 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:26,157 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-20 10:52:26,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 187 treesize of output 1 [2022-11-20 10:52:26,170 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,174 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:26,200 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-20 10:52:26,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 363 treesize of output 1 [2022-11-20 10:52:26,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:26,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:26,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2022-11-20 10:52:26,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,278 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:26,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:26,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 69 [2022-11-20 10:52:26,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:26,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 84 [2022-11-20 10:52:26,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:26,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 56 [2022-11-20 10:52:26,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:26,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2022-11-20 10:52:26,651 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,652 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:26,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:26,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 26 [2022-11-20 10:52:26,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:26,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:26,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 36 [2022-11-20 10:52:26,789 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:26,818 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-20 10:52:26,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 169 treesize of output 1 [2022-11-20 10:52:26,832 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,832 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,836 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:26,863 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-20 10:52:26,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 210 treesize of output 1 [2022-11-20 10:52:26,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,877 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,907 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:26,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 1 [2022-11-20 10:52:26,925 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,925 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:26,957 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:26,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 391 treesize of output 1 [2022-11-20 10:52:27,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:52:27,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:52:27,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,216 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:27,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,236 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:27,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,265 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:27,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:27,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 210 [2022-11-20 10:52:27,394 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:27,404 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 203 treesize of output 187 [2022-11-20 10:52:27,566 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:27,577 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 224 treesize of output 202 [2022-11-20 10:52:27,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:27,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 265 treesize of output 225 [2022-11-20 10:52:27,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:27,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 105 [2022-11-20 10:52:27,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:27,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,886 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 97 [2022-11-20 10:52:27,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,945 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:27,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 1 [2022-11-20 10:52:27,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:27,975 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:27,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 1 [2022-11-20 10:52:27,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:27,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:28,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2022-11-20 10:52:28,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:28,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:28,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:28,079 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:28,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 1 [2022-11-20 10:52:28,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:28,108 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:28,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 1 [2022-11-20 10:52:28,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:28,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:28,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2022-11-20 10:52:28,250 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:28,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 3274 treesize of output 1 [2022-11-20 10:52:28,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:28,348 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:28,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 3396 treesize of output 1 [2022-11-20 10:52:28,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:28,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:28,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:28,410 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:28,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 1 [2022-11-20 10:52:28,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:28,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:28,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:28,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:28,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2022-11-20 10:52:28,530 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:28,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 709 treesize of output 1 [2022-11-20 10:52:28,586 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:28,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 600 treesize of output 1 [2022-11-20 10:52:28,634 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:28,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 1 [2022-11-20 10:52:28,650 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:28,674 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:28,675 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:28,698 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:28,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 156 treesize of output 1 [2022-11-20 10:52:28,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:28,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:28,720 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:28,827 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:28,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 586 treesize of output 1 [2022-11-20 10:52:28,891 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:28,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1962 treesize of output 1 [2022-11-20 10:52:28,918 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:28,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:28,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:28,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:28,945 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:28,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 1 [2022-11-20 10:52:29,055 INFO L321 Elim1Store]: treesize reduction 20, result has 51.2 percent of original size [2022-11-20 10:52:29,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2119 treesize of output 1961 [2022-11-20 10:52:30,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,447 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:30,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 356 treesize of output 1 [2022-11-20 10:52:30,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,530 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:30,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 416 treesize of output 1 [2022-11-20 10:52:30,588 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:30,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 514 treesize of output 1 [2022-11-20 10:52:30,657 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:30,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 342 treesize of output 1 [2022-11-20 10:52:30,701 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,740 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:30,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 380 treesize of output 1 [2022-11-20 10:52:30,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,754 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,766 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:30,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,789 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:30,860 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:30,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 490 treesize of output 1 [2022-11-20 10:52:30,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,945 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:30,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 782 treesize of output 1 [2022-11-20 10:52:30,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2022-11-20 10:52:31,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:31,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:31,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-11-20 10:52:31,105 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:31,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:31,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 26 [2022-11-20 10:52:31,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,178 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:31,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:31,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:31,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 109 [2022-11-20 10:52:31,695 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,696 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:31,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-20 10:52:31,804 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-20 10:52:31,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 344 treesize of output 1 [2022-11-20 10:52:31,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:31,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:31,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:31,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 26 [2022-11-20 10:52:31,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:31,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 318 treesize of output 294 [2022-11-20 10:52:32,330 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:52:32,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 52 [2022-11-20 10:52:33,119 INFO L321 Elim1Store]: treesize reduction 5, result has 68.8 percent of original size [2022-11-20 10:52:33,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1156 treesize of output 1077 [2022-11-20 10:52:33,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:33,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 42 [2022-11-20 10:52:34,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:34,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:34,367 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:34,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:34,378 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:34,386 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:34,397 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:34,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:34,406 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:34,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:34,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:34,428 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:34,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:34,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:34,451 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:34,546 INFO L321 Elim1Store]: treesize reduction 12, result has 70.7 percent of original size [2022-11-20 10:52:34,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1688 treesize of output 1484 [2022-11-20 10:52:35,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:35,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-11-20 10:52:36,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:36,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-11-20 10:52:36,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:36,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 418 treesize of output 388 [2022-11-20 10:52:36,652 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:36,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:36,663 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:36,721 INFO L321 Elim1Store]: treesize reduction 32, result has 22.0 percent of original size [2022-11-20 10:52:36,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 40 [2022-11-20 10:52:37,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:37,564 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:37,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-11-20 10:52:37,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:37,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:37,873 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:38,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:38,243 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:38,253 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:38,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:38,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:38,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:38,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 39 [2022-11-20 10:52:42,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-20 10:52:43,052 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:43,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:43,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:43,213 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:43,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:43,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:43,962 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:44,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:44,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:44,029 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:44,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:44,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 305 [2022-11-20 10:52:44,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:44,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1333 treesize of output 1231 [2022-11-20 10:52:44,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:44,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 491 treesize of output 449 [2022-11-20 10:52:44,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:44,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:44,947 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-20 10:52:44,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 491 treesize of output 1 [2022-11-20 10:52:44,959 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:44,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:45,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:45,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 184 [2022-11-20 10:52:45,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:45,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 418 treesize of output 382 [2022-11-20 10:52:45,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:45,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:45,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-11-20 10:52:45,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:45,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:45,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-11-20 10:52:45,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:45,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 230 treesize of output 206 [2022-11-20 10:52:45,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:45,327 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:45,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:45,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:45,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 128 [2022-11-20 10:52:45,401 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:45,401 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:45,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:45,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:45,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 97 [2022-11-20 10:52:45,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:45,512 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:45,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:45,535 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-20 10:52:45,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 135 treesize of output 1 [2022-11-20 10:52:45,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-11-20 10:52:45,601 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:45,638 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:52:45,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:45,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 214 [2022-11-20 10:52:45,921 INFO L321 Elim1Store]: treesize reduction 62, result has 47.9 percent of original size [2022-11-20 10:52:45,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 127 [2022-11-20 10:52:46,041 INFO L321 Elim1Store]: treesize reduction 62, result has 47.9 percent of original size [2022-11-20 10:52:46,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 103 [2022-11-20 10:52:46,122 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-20 10:52:46,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 482 treesize of output 472 [2022-11-20 10:52:46,536 INFO L321 Elim1Store]: treesize reduction 180, result has 59.2 percent of original size [2022-11-20 10:52:46,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 2704 treesize of output 2666 [2022-11-20 10:52:46,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4454 treesize of output 3992 [2022-11-20 10:52:46,724 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:52:46,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 7694 treesize of output 7228 [2022-11-20 10:52:46,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6400 treesize of output 6332 [2022-11-20 10:52:46,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6332 treesize of output 6298