./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/tcpy.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-tiling/tcpy.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a747677fdea16741fbb3fca3d9510254677728ef5906b9bf8e219064accd3a39 --- 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-e04fb08 [2022-11-16 12:09:41,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:09:41,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:09:41,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:09:41,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:09:41,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:09:41,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:09:41,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:09:41,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:09:41,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:09:41,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:09:41,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:09:41,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:09:41,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:09:41,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:09:41,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:09:41,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:09:41,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:09:41,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:09:41,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:09:41,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:09:41,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:09:41,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:09:41,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:09:41,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:09:41,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:09:41,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:09:41,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:09:41,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:09:41,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:09:41,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:09:41,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:09:41,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:09:41,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:09:41,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:09:41,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:09:41,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:09:41,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:09:41,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:09:41,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:09:41,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:09:41,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:09:41,472 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:09:41,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:09:41,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:09:41,487 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:09:41,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:09:41,488 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:09:41,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:09:41,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:09:41,489 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:09:41,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:09:41,490 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:09:41,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:09:41,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:09:41,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:09:41,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:09:41,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:09:41,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:09:41,492 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:09:41,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:09:41,492 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:09:41,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:09:41,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:09:41,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:09:41,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:09:41,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:09:41,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:09:41,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:09:41,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:09:41,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:09:41,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:09:41,496 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:09:41,496 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:09:41,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:09:41,497 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_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a747677fdea16741fbb3fca3d9510254677728ef5906b9bf8e219064accd3a39 [2022-11-16 12:09:41,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:09:41,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:09:41,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:09:41,739 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:09:41,747 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:09:41,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/array-tiling/tcpy.c [2022-11-16 12:09:41,825 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/data/c53d37b29/4c7aa9212d634275a7d369959fb709a7/FLAG75cd9fdf7 [2022-11-16 12:09:42,280 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:09:42,281 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/sv-benchmarks/c/array-tiling/tcpy.c [2022-11-16 12:09:42,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/data/c53d37b29/4c7aa9212d634275a7d369959fb709a7/FLAG75cd9fdf7 [2022-11-16 12:09:42,675 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/data/c53d37b29/4c7aa9212d634275a7d369959fb709a7 [2022-11-16 12:09:42,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:09:42,685 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:09:42,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:09:42,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:09:42,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:09:42,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:42,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc51c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42, skipping insertion in model container [2022-11-16 12:09:42,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:42,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:09:42,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:09:42,918 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/sv-benchmarks/c/array-tiling/tcpy.c[395,408] [2022-11-16 12:09:42,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:09:42,948 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:09:42,961 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/sv-benchmarks/c/array-tiling/tcpy.c[395,408] [2022-11-16 12:09:42,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:09:42,982 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:09:42,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42 WrapperNode [2022-11-16 12:09:42,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:09:42,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:09:42,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:09:42,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:09:42,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:42,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:43,018 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2022-11-16 12:09:43,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:09:43,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:09:43,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:09:43,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:09:43,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:43,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:43,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:43,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:43,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:43,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:43,042 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:43,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:43,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:09:43,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:09:43,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:09:43,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:09:43,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (1/1) ... [2022-11-16 12:09:43,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:09:43,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:43,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:43,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:09:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:09:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:09:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:09:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:09:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:09:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:09:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:09:43,193 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:09:43,195 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:09:43,376 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:09:43,381 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:09:43,382 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 12:09:43,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:43 BoogieIcfgContainer [2022-11-16 12:09:43,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:09:43,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:09:43,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:09:43,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:09:43,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:09:42" (1/3) ... [2022-11-16 12:09:43,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407e31e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:09:43, skipping insertion in model container [2022-11-16 12:09:43,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:42" (2/3) ... [2022-11-16 12:09:43,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407e31e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:09:43, skipping insertion in model container [2022-11-16 12:09:43,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:43" (3/3) ... [2022-11-16 12:09:43,397 INFO L112 eAbstractionObserver]: Analyzing ICFG tcpy.c [2022-11-16 12:09:43,415 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:09:43,416 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:09:43,461 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:09:43,468 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@49e41690, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:09:43,468 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:09:43,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 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) [2022-11-16 12:09:43,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 12:09:43,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:43,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:43,480 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:43,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:43,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1608152958, now seen corresponding path program 1 times [2022-11-16 12:09:43,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:43,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151951362] [2022-11-16 12:09:43,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:43,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:43,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:43,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:43,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151951362] [2022-11-16 12:09:43,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151951362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:43,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:43,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:09:43,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709063092] [2022-11-16 12:09:43,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:43,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:09:43,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:43,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:09:43,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:09:43,701 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 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) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-16 12:09:43,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:43,718 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2022-11-16 12:09:43,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:09:43,721 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2022-11-16 12:09:43,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:43,729 INFO L225 Difference]: With dead ends: 37 [2022-11-16 12:09:43,730 INFO L226 Difference]: Without dead ends: 17 [2022-11-16 12:09:43,733 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 [2022-11-16 12:09:43,742 INFO L413 NwaCegarLoop]: 25 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, 25 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 [2022-11-16 12:09:43,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:09:43,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-16 12:09:43,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-16 12:09:43,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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) [2022-11-16 12:09:43,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-16 12:09:43,783 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2022-11-16 12:09:43,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:43,784 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-16 12:09:43,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-16 12:09:43,785 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-16 12:09:43,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 12:09:43,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:43,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:43,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:09:43,787 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:43,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:43,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1873320706, now seen corresponding path program 1 times [2022-11-16 12:09:43,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:43,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414177843] [2022-11-16 12:09:43,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:43,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:43,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:43,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:43,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414177843] [2022-11-16 12:09:43,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414177843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:43,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:43,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:09:43,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904391889] [2022-11-16 12:09:43,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:43,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:09:43,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:43,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:09:43,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:09:43,979 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-16 12:09:44,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:44,045 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-11-16 12:09:44,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:09:44,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-16 12:09:44,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:44,082 INFO L225 Difference]: With dead ends: 31 [2022-11-16 12:09:44,082 INFO L226 Difference]: Without dead ends: 19 [2022-11-16 12:09:44,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:09:44,084 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:44,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 22 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:09:44,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-16 12:09:44,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-11-16 12:09:44,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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) [2022-11-16 12:09:44,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-11-16 12:09:44,089 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-11-16 12:09:44,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:44,090 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-11-16 12:09:44,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-16 12:09:44,090 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-16 12:09:44,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 12:09:44,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:44,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:44,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:09:44,092 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:44,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:44,093 INFO L85 PathProgramCache]: Analyzing trace with hash -270521828, now seen corresponding path program 1 times [2022-11-16 12:09:44,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:44,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619639321] [2022-11-16 12:09:44,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:44,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:44,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:44,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:44,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619639321] [2022-11-16 12:09:44,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619639321] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:09:44,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890444591] [2022-11-16 12:09:44,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:44,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:09:44,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:44,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:09:44,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:09:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:44,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:09:44,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:44,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:44,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:09:44,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:44,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890444591] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:09:44,616 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:09:44,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-16 12:09:44,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702427345] [2022-11-16 12:09:44,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:09:44,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:09:44,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:44,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:09:44,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:09:44,618 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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) [2022-11-16 12:09:44,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:44,712 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-11-16 12:09:44,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:09:44,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 14 [2022-11-16 12:09:44,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:44,713 INFO L225 Difference]: With dead ends: 33 [2022-11-16 12:09:44,713 INFO L226 Difference]: Without dead ends: 21 [2022-11-16 12:09:44,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:09:44,715 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:44,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 32 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:09:44,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-16 12:09:44,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-11-16 12:09:44,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 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) [2022-11-16 12:09:44,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-16 12:09:44,720 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 14 [2022-11-16 12:09:44,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:44,720 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-16 12:09:44,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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) [2022-11-16 12:09:44,721 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-16 12:09:44,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 12:09:44,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:44,721 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:44,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:44,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:09:44,923 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:44,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:44,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1874059334, now seen corresponding path program 2 times [2022-11-16 12:09:44,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:44,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631004864] [2022-11-16 12:09:44,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:44,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:45,228 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 12:09:45,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:45,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631004864] [2022-11-16 12:09:45,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631004864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:45,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:45,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:09:45,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898346014] [2022-11-16 12:09:45,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:45,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:09:45,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:45,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:09:45,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:09:45,232 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-11-16 12:09:45,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:45,284 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2022-11-16 12:09:45,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:09:45,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 16 [2022-11-16 12:09:45,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:45,286 INFO L225 Difference]: With dead ends: 35 [2022-11-16 12:09:45,287 INFO L226 Difference]: Without dead ends: 28 [2022-11-16 12:09:45,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:09:45,289 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 46 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:45,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 17 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:09:45,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-16 12:09:45,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2022-11-16 12:09:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 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) [2022-11-16 12:09:45,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-11-16 12:09:45,303 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 16 [2022-11-16 12:09:45,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:45,303 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-11-16 12:09:45,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-11-16 12:09:45,304 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-11-16 12:09:45,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 12:09:45,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:45,305 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:45,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:09:45,305 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:45,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:45,306 INFO L85 PathProgramCache]: Analyzing trace with hash 265660728, now seen corresponding path program 1 times [2022-11-16 12:09:45,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:45,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370030017] [2022-11-16 12:09:45,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:45,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:46,044 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 12:09:46,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:46,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370030017] [2022-11-16 12:09:46,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370030017] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:09:46,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483551346] [2022-11-16 12:09:46,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:46,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:09:46,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:46,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:09:46,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:09:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:46,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-16 12:09:46,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:46,223 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 8 [2022-11-16 12:09:46,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:46,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:46,526 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 23 treesize of output 27 [2022-11-16 12:09:46,624 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 12:09:46,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:09:46,704 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:09:46,706 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 752 treesize of output 718 [2022-11-16 12:09:46,723 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 486 treesize of output 414 [2022-11-16 12:09:51,660 INFO L321 Elim1Store]: treesize reduction 24, result has 22.6 percent of original size [2022-11-16 12:09:51,661 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 611 treesize of output 538 [2022-11-16 12:09:51,736 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-16 12:09:51,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 491 treesize of output 1 [2022-11-16 12:09:51,768 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-16 12:09:51,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 611 treesize of output 1 [2022-11-16 12:09:51,786 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-16 12:09:51,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 491 treesize of output 1 [2022-11-16 12:09:51,802 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 12:09:51,802 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 414 treesize of output 378 [2022-11-16 12:09:51,857 INFO L321 Elim1Store]: treesize reduction 24, result has 22.6 percent of original size [2022-11-16 12:09:51,858 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 611 treesize of output 538 [2022-11-16 12:09:51,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:51,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:51,947 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-16 12:09:51,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 491 treesize of output 1 [2022-11-16 12:09:51,965 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-16 12:09:51,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 611 treesize of output 1 [2022-11-16 12:09:51,985 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-16 12:09:51,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 491 treesize of output 1 [2022-11-16 12:09:52,019 INFO L321 Elim1Store]: treesize reduction 10, result has 67.7 percent of original size [2022-11-16 12:09:52,019 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 290 [2022-11-16 12:09:52,120 INFO L321 Elim1Store]: treesize reduction 18, result has 41.9 percent of original size [2022-11-16 12:09:52,121 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 198 treesize of output 166 [2022-11-16 12:09:52,168 INFO L321 Elim1Store]: treesize reduction 20, result has 35.5 percent of original size [2022-11-16 12:09:52,169 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 611 treesize of output 541 [2022-11-16 12:09:52,254 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-16 12:09:52,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 611 treesize of output 1 [2022-11-16 12:09:52,275 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-16 12:09:52,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 587 treesize of output 1 [2022-11-16 12:09:52,309 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-16 12:09:52,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 491 treesize of output 1 [2022-11-16 12:09:52,330 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-16 12:09:52,331 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 587 treesize of output 1 [2022-11-16 12:09:52,361 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-16 12:09:52,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 443 treesize of output 418 [2022-11-16 12:09:52,421 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-16 12:09:52,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 323 treesize of output 302 [2022-11-16 12:09:52,506 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-16 12:09:52,507 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 443 treesize of output 418 [2022-11-16 12:09:52,571 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 270 treesize of output 262 [2022-11-16 12:09:52,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 270 treesize of output 262 [2022-11-16 12:09:52,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 121 treesize of output 117 [2022-11-16 12:09:52,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,683 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-16 12:09:52,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 323 treesize of output 302 [2022-11-16 12:09:52,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:52,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:52,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,882 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:52,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,893 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:52,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:52,919 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:52,928 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:09:52,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 1 [2022-11-16 12:09:52,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:52,943 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-16 12:09:52,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 58 [2022-11-16 12:09:52,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:52,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 1 [2022-11-16 12:09:52,976 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:52,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:52,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2022-11-16 12:09:52,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:52,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:52,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 1 [2022-11-16 12:09:53,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,092 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,104 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,244 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,325 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,397 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 611 treesize of output 1 [2022-11-16 12:09:53,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,414 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 462 treesize of output 1 [2022-11-16 12:09:53,434 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-16 12:09:53,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 462 treesize of output 1 [2022-11-16 12:09:53,453 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-16 12:09:53,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 611 treesize of output 1 [2022-11-16 12:09:53,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,475 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,481 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 342 treesize of output 1 [2022-11-16 12:09:53,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:53,517 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 12:09:53,528 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,534 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 491 treesize of output 1 [2022-11-16 12:09:53,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,554 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 611 treesize of output 1 [2022-11-16 12:09:53,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,571 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 467 treesize of output 1 [2022-11-16 12:09:53,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,590 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 347 treesize of output 1 [2022-11-16 12:09:53,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,612 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 1 [2022-11-16 12:09:53,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,630 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 318 treesize of output 1 [2022-11-16 12:09:53,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,652 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 467 treesize of output 1 [2022-11-16 12:09:53,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,669 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 467 treesize of output 1 [2022-11-16 12:09:53,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,686 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 318 treesize of output 1 [2022-11-16 12:09:53,701 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,706 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 1 [2022-11-16 12:09:53,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,727 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 467 treesize of output 1 [2022-11-16 12:09:53,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,745 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 347 treesize of output 1 [2022-11-16 12:09:53,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,763 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 491 treesize of output 1 [2022-11-16 12:09:53,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,782 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 611 treesize of output 1 [2022-11-16 12:09:53,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,800 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 467 treesize of output 1 [2022-11-16 12:09:53,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,817 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 347 treesize of output 1 [2022-11-16 12:09:53,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:53,840 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:09:53,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 491 treesize of output 1 [2022-11-16 12:09:53,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 210 treesize of output 204 [2022-11-16 12:09:53,929 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 12:09:53,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 101 [2022-11-16 12:09:53,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,008 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,026 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,187 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 11 treesize of output 1 [2022-11-16 12:09:54,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,240 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-16 12:09:54,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-16 12:09:54,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,359 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-16 12:09:54,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,391 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-16 12:09:54,401 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,411 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-16 12:09:54,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,431 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-16 12:09:54,435 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:54,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:54,637 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 12:09:54,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483551346] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:09:54,637 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:09:54,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 18 [2022-11-16 12:09:54,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669965040] [2022-11-16 12:09:54,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:09:54,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:09:54,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:54,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:09:54,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:09:54,643 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 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) [2022-11-16 12:09:54,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:54,988 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2022-11-16 12:09:54,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:09:54,989 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 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 18 [2022-11-16 12:09:54,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:54,989 INFO L225 Difference]: With dead ends: 29 [2022-11-16 12:09:54,989 INFO L226 Difference]: Without dead ends: 27 [2022-11-16 12:09:54,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=204, Invalid=446, Unknown=0, NotChecked=0, Total=650 [2022-11-16 12:09:54,991 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 65 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:54,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 35 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:09:54,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-16 12:09:54,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2022-11-16 12:09:54,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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) [2022-11-16 12:09:54,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-11-16 12:09:54,996 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 18 [2022-11-16 12:09:54,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:54,996 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-11-16 12:09:54,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 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) [2022-11-16 12:09:54,997 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-16 12:09:54,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:09:54,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:54,997 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:55,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 12:09:55,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:09:55,203 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:55,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:55,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1994055598, now seen corresponding path program 1 times [2022-11-16 12:09:55,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:55,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370842574] [2022-11-16 12:09:55,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:55,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:55,920 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:55,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:55,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370842574] [2022-11-16 12:09:55,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370842574] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:09:55,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928128015] [2022-11-16 12:09:55,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:55,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:09:55,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:55,924 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:09:55,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:09:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:55,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-16 12:09:56,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:56,028 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 8 [2022-11-16 12:09:56,105 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 [2022-11-16 12:09:56,297 INFO L321 Elim1Store]: treesize reduction 26, result has 31.6 percent of original size [2022-11-16 12:09:56,297 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 28 treesize of output 32 [2022-11-16 12:09:56,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:56,578 INFO L321 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-11-16 12:09:56,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 23 [2022-11-16 12:09:56,598 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:56,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:09:58,712 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_103 Int) (|ULTIMATE.start_main_~acopy~0#1.offset| Int)) (let ((.cse0 (store (let ((.cse1 (* (- 4) |c_ULTIMATE.start_main_~i~0#1|)) (.cse2 (* 4 c_~SIZE~0))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base|) (+ .cse1 (- 4) .cse2 |ULTIMATE.start_main_~acopy~0#1.offset|) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse1 (- 4) .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |ULTIMATE.start_main_~acopy~0#1.offset|) v_ArrVal_103))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (select .cse0 (+ |ULTIMATE.start_main_~acopy~0#1.offset| 4))))) is different from false [2022-11-16 12:10:00,727 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_103 Int) (|ULTIMATE.start_main_~acopy~0#1.offset| Int)) (let ((.cse0 (let ((.cse1 (* 4 c_~SIZE~0))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base|) (+ (- 4) .cse1 |ULTIMATE.start_main_~acopy~0#1.offset|) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 4) .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (= (select .cse0 (+ |ULTIMATE.start_main_~acopy~0#1.offset| 4)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base| (store .cse0 |ULTIMATE.start_main_~acopy~0#1.offset| v_ArrVal_103)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))))) is different from false [2022-11-16 12:10:05,085 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:10:05,085 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 1174 treesize of output 951 [2022-11-16 12:10:05,154 INFO L321 Elim1Store]: treesize reduction 39, result has 62.1 percent of original size [2022-11-16 12:10:05,154 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 4 case distinctions, treesize of input 1443 treesize of output 1337 [2022-11-16 12:10:05,184 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:10:05,184 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 1507 treesize of output 1399 [2022-11-16 12:10:07,762 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:07,768 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 13 treesize of output 9 [2022-11-16 12:10:07,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:07,777 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 25 treesize of output 17 [2022-11-16 12:10:07,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:07,783 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 12:10:07,788 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:07,790 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 12:10:07,793 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:07,796 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 12:10:07,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:07,811 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 11 treesize of output 7 [2022-11-16 12:10:07,813 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 12:10:07,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:07,838 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 55 treesize of output 47 [2022-11-16 12:10:07,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:07,849 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 40 treesize of output 32 [2022-11-16 12:10:07,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:07,865 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 40 treesize of output 32 [2022-11-16 12:10:07,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:07,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:07,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:07,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:07,893 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 12:10:07,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:07,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:07,911 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 26 treesize of output 22 [2022-11-16 12:10:07,914 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 12:10:07,920 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:07,923 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 12:10:07,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:07,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:07,944 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 40 treesize of output 32 [2022-11-16 12:10:07,957 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 16 [2022-11-16 12:10:07,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:07,969 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 12:10:14,503 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-16 12:10:14,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928128015] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:10:14,504 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:10:14,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 14] total 33 [2022-11-16 12:10:14,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149402529] [2022-11-16 12:10:14,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:10:14,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-16 12:10:14,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:14,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-16 12:10:14,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=747, Unknown=5, NotChecked=118, Total=1056 [2022-11-16 12:10:14,506 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 33 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 33 states have internal predecessors, (59), 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) [2022-11-16 12:10:15,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:15,714 INFO L93 Difference]: Finished difference Result 82 states and 91 transitions. [2022-11-16 12:10:15,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-16 12:10:15,715 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 33 states have internal predecessors, (59), 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 22 [2022-11-16 12:10:15,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:15,716 INFO L225 Difference]: With dead ends: 82 [2022-11-16 12:10:15,716 INFO L226 Difference]: Without dead ends: 71 [2022-11-16 12:10:15,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=558, Invalid=1995, Unknown=5, NotChecked=198, Total=2756 [2022-11-16 12:10:15,718 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 151 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 204 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:15,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 130 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 234 Invalid, 0 Unknown, 204 Unchecked, 0.3s Time] [2022-11-16 12:10:15,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-16 12:10:15,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 44. [2022-11-16 12:10:15,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 43 states have internal predecessors, (49), 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) [2022-11-16 12:10:15,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-11-16 12:10:15,727 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 22 [2022-11-16 12:10:15,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:15,727 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-11-16 12:10:15,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 33 states have internal predecessors, (59), 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) [2022-11-16 12:10:15,728 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-11-16 12:10:15,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 12:10:15,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:15,729 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:10:15,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:15,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:10:15,935 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:10:15,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:15,935 INFO L85 PathProgramCache]: Analyzing trace with hash -757863644, now seen corresponding path program 2 times [2022-11-16 12:10:15,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:15,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461660343] [2022-11-16 12:10:15,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:15,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:16,086 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:10:16,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:16,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461660343] [2022-11-16 12:10:16,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461660343] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:10:16,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245300720] [2022-11-16 12:10:16,086 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:10:16,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:10:16,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:16,088 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:10:16,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:10:16,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:10:16,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:10:16,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:10:16,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:10:16,282 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:10:16,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:10:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:10:16,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245300720] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:10:16,360 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:10:16,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2022-11-16 12:10:16,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235925063] [2022-11-16 12:10:16,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:10:16,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 12:10:16,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:16,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 12:10:16,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:10:16,362 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 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) [2022-11-16 12:10:16,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:16,573 INFO L93 Difference]: Finished difference Result 83 states and 90 transitions. [2022-11-16 12:10:16,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:10:16,573 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 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 26 [2022-11-16 12:10:16,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:16,574 INFO L225 Difference]: With dead ends: 83 [2022-11-16 12:10:16,574 INFO L226 Difference]: Without dead ends: 61 [2022-11-16 12:10:16,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:10:16,575 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 79 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:16,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 57 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:10:16,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-16 12:10:16,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 38. [2022-11-16 12:10:16,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.135135135135135) internal successors, (42), 37 states have internal predecessors, (42), 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) [2022-11-16 12:10:16,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-11-16 12:10:16,586 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 26 [2022-11-16 12:10:16,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:16,587 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-11-16 12:10:16,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 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) [2022-11-16 12:10:16,587 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-11-16 12:10:16,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 12:10:16,588 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:16,588 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:10:16,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:16,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:10:16,793 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:10:16,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:16,794 INFO L85 PathProgramCache]: Analyzing trace with hash -980493622, now seen corresponding path program 3 times [2022-11-16 12:10:16,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:16,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758440312] [2022-11-16 12:10:16,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:16,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:17,219 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:10:17,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:17,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758440312] [2022-11-16 12:10:17,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758440312] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:10:17,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304254336] [2022-11-16 12:10:17,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:10:17,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:10:17,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:17,220 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:10:17,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:10:17,295 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 12:10:17,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:10:17,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-16 12:10:17,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:10:17,308 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 8 [2022-11-16 12:10:17,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:17,468 INFO L321 Elim1Store]: treesize reduction 20, result has 47.4 percent of original size [2022-11-16 12:10:17,468 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 27 treesize of output 37 [2022-11-16 12:10:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 12:10:17,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:10:17,902 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:10:17,902 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 938 treesize of output 882 [2022-11-16 12:10:17,910 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 874 treesize of output 802 [2022-11-16 12:10:29,828 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 395 treesize of output 379 [2022-11-16 12:10:29,846 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-11-16 12:10:29,846 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 357 treesize of output 282 [2022-11-16 12:10:29,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,870 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 13 treesize of output 1 [2022-11-16 12:10:29,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,881 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:29,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,902 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 13 treesize of output 1 [2022-11-16 12:10:29,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,917 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 13 treesize of output 1 [2022-11-16 12:10:29,928 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 643 treesize of output 611 [2022-11-16 12:10:29,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:29,949 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 165 treesize of output 125 [2022-11-16 12:10:29,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,990 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 13 treesize of output 1 [2022-11-16 12:10:29,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:29,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,000 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 13 treesize of output 1 [2022-11-16 12:10:30,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,011 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,174 INFO L321 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2022-11-16 12:10:30,174 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 281 treesize of output 237 [2022-11-16 12:10:30,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,251 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 123 treesize of output 115 [2022-11-16 12:10:30,288 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:10:30,289 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 206 treesize of output 1 [2022-11-16 12:10:30,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,314 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,335 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:10:30,336 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 200 treesize of output 1 [2022-11-16 12:10:30,349 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:10:30,349 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 139 treesize of output 1 [2022-11-16 12:10:30,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,377 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-16 12:10:30,378 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 151 treesize of output 1 [2022-11-16 12:10:30,382 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,388 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,406 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-16 12:10:30,407 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 212 treesize of output 1 [2022-11-16 12:10:30,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,446 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:10:30,446 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 200 treesize of output 1 [2022-11-16 12:10:30,460 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:10:30,461 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 139 treesize of output 1 [2022-11-16 12:10:30,472 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:10:30,472 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 200 treesize of output 1 [2022-11-16 12:10:30,482 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 123 treesize of output 115 [2022-11-16 12:10:30,513 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-16 12:10:30,513 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 220 treesize of output 1 [2022-11-16 12:10:30,526 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:10:30,526 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 139 treesize of output 1 [2022-11-16 12:10:30,542 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:10:30,543 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 200 treesize of output 1 [2022-11-16 12:10:30,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,568 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:10:30,569 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 200 treesize of output 1 [2022-11-16 12:10:30,584 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:10:30,584 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 139 treesize of output 1 [2022-11-16 12:10:30,601 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:10:30,601 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 139 treesize of output 1 [2022-11-16 12:10:30,622 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:10:30,623 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 200 treesize of output 1 [2022-11-16 12:10:30,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,687 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:10:30,687 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 281 treesize of output 1 [2022-11-16 12:10:30,709 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-16 12:10:30,709 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 82 treesize of output 65 [2022-11-16 12:10:30,764 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,769 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:10:30,770 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 155 treesize of output 1 [2022-11-16 12:10:30,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,796 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:10:30,796 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 360 treesize of output 1 [2022-11-16 12:10:30,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,814 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 98 treesize of output 1 [2022-11-16 12:10:30,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,834 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:10:30,834 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 94 treesize of output 1 [2022-11-16 12:10:30,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,841 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,848 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,853 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 98 treesize of output 1 [2022-11-16 12:10:30,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,864 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 19 treesize of output 1 [2022-11-16 12:10:30,868 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,873 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 98 treesize of output 1 [2022-11-16 12:10:30,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,880 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,885 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 19 treesize of output 1 [2022-11-16 12:10:30,898 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,903 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:10:30,904 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 167 treesize of output 1 [2022-11-16 12:10:30,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,916 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,931 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 1 [2022-11-16 12:10:30,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,942 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,950 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 98 treesize of output 1 [2022-11-16 12:10:30,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:30,979 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:10:30,979 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 208 treesize of output 1 [2022-11-16 12:10:30,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:30,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,000 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 13 treesize of output 1 [2022-11-16 12:10:31,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,015 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 19 treesize of output 1 [2022-11-16 12:10:31,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,025 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 11 treesize of output 1 [2022-11-16 12:10:31,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,031 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,036 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 12:10:31,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,048 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 12:10:31,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,066 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 74 treesize of output 1 [2022-11-16 12:10:31,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,077 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 51 treesize of output 1 [2022-11-16 12:10:31,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,087 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 200 treesize of output 168 [2022-11-16 12:10:31,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,179 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 13 treesize of output 1 [2022-11-16 12:10:31,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,191 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 13 treesize of output 1 [2022-11-16 12:10:31,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,224 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,237 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,244 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,273 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 26 treesize of output 1 [2022-11-16 12:10:31,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,278 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,282 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 19 treesize of output 1 [2022-11-16 12:10:31,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,314 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,319 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 19 treesize of output 1 [2022-11-16 12:10:31,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,333 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 26 treesize of output 1 [2022-11-16 12:10:31,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,351 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:10:31,351 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 269 treesize of output 1 [2022-11-16 12:10:31,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,373 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 26 treesize of output 1 [2022-11-16 12:10:31,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,388 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 19 treesize of output 1 [2022-11-16 12:10:31,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,395 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 1 [2022-11-16 12:10:31,399 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,399 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,403 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 26 treesize of output 1 [2022-11-16 12:10:31,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,413 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 98 treesize of output 1 [2022-11-16 12:10:31,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,430 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:10:31,430 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 208 treesize of output 1 [2022-11-16 12:10:31,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,443 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 12:10:31,443 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 269 treesize of output 1 [2022-11-16 12:10:31,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:31,457 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:31,616 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 12:10:31,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304254336] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:10:31,616 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:10:31,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 27 [2022-11-16 12:10:31,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934047074] [2022-11-16 12:10:31,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:10:31,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-16 12:10:31,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:31,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-16 12:10:31,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2022-11-16 12:10:31,618 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 27 states have internal predecessors, (63), 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) [2022-11-16 12:10:34,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:34,072 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2022-11-16 12:10:34,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-16 12:10:34,073 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 27 states have internal predecessors, (63), 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 26 [2022-11-16 12:10:34,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:34,073 INFO L225 Difference]: With dead ends: 101 [2022-11-16 12:10:34,073 INFO L226 Difference]: Without dead ends: 73 [2022-11-16 12:10:34,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1144 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=846, Invalid=3710, Unknown=0, NotChecked=0, Total=4556 [2022-11-16 12:10:34,075 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 303 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:34,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 142 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:10:34,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-16 12:10:34,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 34. [2022-11-16 12:10:34,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 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) [2022-11-16 12:10:34,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-16 12:10:34,090 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 26 [2022-11-16 12:10:34,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:34,091 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-16 12:10:34,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 27 states have internal predecessors, (63), 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) [2022-11-16 12:10:34,091 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-16 12:10:34,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 12:10:34,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:34,093 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:10:34,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:34,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-16 12:10:34,298 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:10:34,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:34,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1750966422, now seen corresponding path program 4 times [2022-11-16 12:10:34,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:34,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468816216] [2022-11-16 12:10:34,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:34,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:34,650 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:10:34,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:34,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468816216] [2022-11-16 12:10:34,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468816216] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:10:34,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141968022] [2022-11-16 12:10:34,651 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:10:34,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:10:34,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:34,652 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:10:34,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 12:10:34,733 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:10:34,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:10:34,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:10:34,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:10:34,904 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:10:34,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:10:35,176 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:35,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141968022] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:10:35,176 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:10:35,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 13] total 25 [2022-11-16 12:10:35,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375911406] [2022-11-16 12:10:35,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:10:35,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 12:10:35,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:35,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 12:10:35,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:10:35,178 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 25 states, 25 states have (on average 2.32) internal successors, (58), 25 states have internal predecessors, (58), 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) [2022-11-16 12:10:35,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:35,701 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2022-11-16 12:10:35,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 12:10:35,702 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.32) internal successors, (58), 25 states have internal predecessors, (58), 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 26 [2022-11-16 12:10:35,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:35,702 INFO L225 Difference]: With dead ends: 54 [2022-11-16 12:10:35,702 INFO L226 Difference]: Without dead ends: 45 [2022-11-16 12:10:35,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2022-11-16 12:10:35,703 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 141 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:35,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 73 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:10:35,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-16 12:10:35,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 33. [2022-11-16 12:10:35,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 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) [2022-11-16 12:10:35,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-11-16 12:10:35,712 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 26 [2022-11-16 12:10:35,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:35,713 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-11-16 12:10:35,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.32) internal successors, (58), 25 states have internal predecessors, (58), 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) [2022-11-16 12:10:35,713 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-11-16 12:10:35,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 12:10:35,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:35,714 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:10:35,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:35,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:10:35,924 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:10:35,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:35,924 INFO L85 PathProgramCache]: Analyzing trace with hash 659943902, now seen corresponding path program 5 times [2022-11-16 12:10:35,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:35,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474928357] [2022-11-16 12:10:35,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:35,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:38,470 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:38,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:38,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474928357] [2022-11-16 12:10:38,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474928357] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:10:38,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151806639] [2022-11-16 12:10:38,471 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:10:38,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:10:38,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:38,476 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:10:38,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 12:10:38,642 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-11-16 12:10:38,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:10:38,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-16 12:10:38,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:10:38,656 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 8 [2022-11-16 12:10:39,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:39,262 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 30 treesize of output 34 [2022-11-16 12:10:39,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:39,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 20 [2022-11-16 12:10:39,843 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:39,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:10:40,078 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:10:40,079 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 270 treesize of output 258 [2022-11-16 12:10:40,360 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 12:10:40,361 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 85 treesize of output 51 [2022-11-16 12:10:40,366 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 154 treesize of output 146 [2022-11-16 12:10:40,398 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 12:10:40,399 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 120 treesize of output 1 [2022-11-16 12:10:40,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:40,407 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 85 treesize of output 25 [2022-11-16 12:10:40,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:40,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:40,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:40,419 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 120 treesize of output 51 [2022-11-16 12:10:40,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:40,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:40,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:40,434 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 39 treesize of output 25 [2022-11-16 12:10:40,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:40,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:40,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:40,446 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 75 treesize of output 51 [2022-11-16 12:10:40,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:40,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:40,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:40,468 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 39 treesize of output 25 [2022-11-16 12:10:40,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:40,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:40,485 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 12:10:40,485 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 120 treesize of output 1 [2022-11-16 12:10:40,494 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 12:10:40,495 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 75 treesize of output 1 [2022-11-16 12:10:40,503 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 12:10:40,504 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 39 treesize of output 1 [2022-11-16 12:10:40,550 INFO L321 Elim1Store]: treesize reduction 13, result has 67.5 percent of original size [2022-11-16 12:10:40,551 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 159 treesize of output 141 [2022-11-16 12:10:40,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:40,585 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 159 treesize of output 111 [2022-11-16 12:10:40,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:40,612 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 68 treesize of output 54 [2022-11-16 12:10:40,651 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 12:10:40,652 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 159 treesize of output 111 [2022-11-16 12:10:40,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:40,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:40,697 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 12:10:40,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:40,712 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:40,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:40,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:40,734 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 12:10:40,735 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 92 treesize of output 58 [2022-11-16 12:10:40,804 INFO L321 Elim1Store]: treesize reduction 19, result has 52.5 percent of original size [2022-11-16 12:10:40,805 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 183 treesize of output 139 [2022-11-16 12:10:40,968 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:40,980 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-16 12:10:40,981 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 128 treesize of output 1 [2022-11-16 12:10:40,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:40,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:40,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:41,000 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 31 treesize of output 1 [2022-11-16 12:10:41,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:41,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:41,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:41,012 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 17 treesize of output 1 [2022-11-16 12:10:41,053 INFO L321 Elim1Store]: treesize reduction 23, result has 42.5 percent of original size [2022-11-16 12:10:41,053 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 159 treesize of output 131 [2022-11-16 12:10:41,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:41,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:41,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:41,085 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 17 treesize of output 1 [2022-11-16 12:10:41,089 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:41,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:10:41,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:41,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:41,112 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-16 12:10:41,112 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 1 [2022-11-16 12:10:41,137 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-16 12:10:41,137 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 250 treesize of output 1 [2022-11-16 12:10:42,531 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:42,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151806639] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:10:42,532 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:10:42,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 17] total 49 [2022-11-16 12:10:42,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749890244] [2022-11-16 12:10:42,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:10:42,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-16 12:10:42,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:42,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-16 12:10:42,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=1989, Unknown=0, NotChecked=0, Total=2352 [2022-11-16 12:10:42,534 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 49 states, 49 states have (on average 1.816326530612245) internal successors, (89), 49 states have internal predecessors, (89), 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) [2022-11-16 12:10:47,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:47,234 INFO L93 Difference]: Finished difference Result 125 states and 135 transitions. [2022-11-16 12:10:47,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-16 12:10:47,235 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.816326530612245) internal successors, (89), 49 states have internal predecessors, (89), 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 32 [2022-11-16 12:10:47,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:47,235 INFO L225 Difference]: With dead ends: 125 [2022-11-16 12:10:47,236 INFO L226 Difference]: Without dead ends: 110 [2022-11-16 12:10:47,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2164 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1305, Invalid=6705, Unknown=0, NotChecked=0, Total=8010 [2022-11-16 12:10:47,238 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 403 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 86 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:47,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 194 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 497 Invalid, 0 Unknown, 86 Unchecked, 0.8s Time] [2022-11-16 12:10:47,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-11-16 12:10:47,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 58. [2022-11-16 12:10:47,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.105263157894737) internal successors, (63), 57 states have internal predecessors, (63), 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) [2022-11-16 12:10:47,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2022-11-16 12:10:47,257 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 32 [2022-11-16 12:10:47,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:47,257 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2022-11-16 12:10:47,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.816326530612245) internal successors, (89), 49 states have internal predecessors, (89), 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) [2022-11-16 12:10:47,258 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2022-11-16 12:10:47,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-16 12:10:47,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:47,259 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:10:47,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:47,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 12:10:47,464 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:10:47,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:47,465 INFO L85 PathProgramCache]: Analyzing trace with hash -837130924, now seen corresponding path program 6 times [2022-11-16 12:10:47,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:47,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943560296] [2022-11-16 12:10:47,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:47,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:49,493 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:49,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:49,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943560296] [2022-11-16 12:10:49,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943560296] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:10:49,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274202600] [2022-11-16 12:10:49,494 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:10:49,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:10:49,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:49,495 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:10:49,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c39ffd5-204a-4d23-916b-cec944894692/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 12:10:49,619 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-16 12:10:49,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:10:49,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-16 12:10:49,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:10:49,636 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 8 [2022-11-16 12:10:49,816 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 13 treesize of output 9 [2022-11-16 12:10:50,022 INFO L321 Elim1Store]: treesize reduction 37, result has 28.8 percent of original size [2022-11-16 12:10:50,022 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 38 treesize of output 42 [2022-11-16 12:10:50,208 INFO L321 Elim1Store]: treesize reduction 113, result has 25.7 percent of original size [2022-11-16 12:10:50,208 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 68 [2022-11-16 12:10:51,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:10:51,115 INFO L321 Elim1Store]: treesize reduction 18, result has 14.3 percent of original size [2022-11-16 12:10:51,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 23 [2022-11-16 12:10:51,147 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:51,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:11:07,499 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:11:07,503 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 6619080 treesize of output 5689301 [2022-11-16 12:11:13,429 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 2149 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 12:11:13,758 INFO L321 Elim1Store]: treesize reduction 85, result has 28.6 percent of original size [2022-11-16 12:11:13,761 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 4 case distinctions, treesize of input 9994197 treesize of output 9281513 [2022-11-16 12:11:23,510 WARN L233 SmtUtils]: Spent 9.75s on a formula simplification that was a NOOP. DAG size: 2183 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 12:11:32,892 WARN L233 SmtUtils]: Spent 9.37s on a formula simplification that was a NOOP. DAG size: 2175 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 12:11:33,085 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 12:11:33,088 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 9871321 treesize of output 9461723 [2022-11-16 12:11:43,073 WARN L233 SmtUtils]: Spent 9.98s on a formula simplification that was a NOOP. DAG size: 2176 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 12:11:52,596 WARN L233 SmtUtils]: Spent 9.51s on a formula simplification that was a NOOP. DAG size: 2173 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 12:11:53,050 INFO L321 Elim1Store]: treesize reduction 23, result has 30.3 percent of original size [2022-11-16 12:11:53,056 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 1328947159 treesize of output 1276780509