./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-tiling/tcpy.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN --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-6b4ec56 [2022-11-20 10:52:15,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:52:15,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:52:15,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:52:15,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:52:15,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:52:15,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:52:15,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:52:15,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:52:15,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:52:15,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:52:15,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:52:15,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:52:15,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:52:15,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:52:15,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:52:15,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:52:15,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:52:15,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:52:15,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:52:15,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:52:15,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:52:15,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:52:15,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:52:15,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:52:15,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:52:15,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:52:15,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:52:15,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:52:15,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:52:15,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:52:15,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:52:15,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:52:15,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:52:15,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:52:15,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:52:15,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:52:15,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:52:15,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:52:15,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:52:15,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:52:15,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:52:15,159 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:52:15,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:52:15,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:52:15,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:52:15,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:52:15,160 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:52:15,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:52:15,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:52:15,161 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:52:15,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:52:15,163 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:52:15,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:52:15,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:52:15,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:52:15,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:52:15,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:52:15,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:52:15,164 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:52:15,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:52:15,164 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:52:15,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:52:15,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:52:15,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:52:15,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:52:15,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:52:15,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:52:15,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:52:15,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:52:15,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:52:15,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:52:15,166 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:52:15,167 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:52:15,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:52:15,167 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_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a747677fdea16741fbb3fca3d9510254677728ef5906b9bf8e219064accd3a39 [2022-11-20 10:52:15,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:52:15,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:52:15,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:52:15,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:52:15,476 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:52:15,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/array-tiling/tcpy.c [2022-11-20 10:52:18,534 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:52:18,746 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:52:18,746 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/sv-benchmarks/c/array-tiling/tcpy.c [2022-11-20 10:52:18,751 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/data/8da6c0088/04e9338b2ee0415b8d97fc59369812f8/FLAG138158617 [2022-11-20 10:52:18,765 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/data/8da6c0088/04e9338b2ee0415b8d97fc59369812f8 [2022-11-20 10:52:18,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:52:18,769 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:52:18,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:52:18,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:52:18,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:52:18,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:52:18" (1/1) ... [2022-11-20 10:52:18,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd7061e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:18, skipping insertion in model container [2022-11-20 10:52:18,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:52:18" (1/1) ... [2022-11-20 10:52:18,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:52:18,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:52:19,057 WARN L237 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_a94683ca-24f7-4f80-9d51-cf6826c35717/sv-benchmarks/c/array-tiling/tcpy.c[395,408] [2022-11-20 10:52:19,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:52:19,111 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:52:19,126 WARN L237 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_a94683ca-24f7-4f80-9d51-cf6826c35717/sv-benchmarks/c/array-tiling/tcpy.c[395,408] [2022-11-20 10:52:19,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:52:19,159 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:52:19,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:19 WrapperNode [2022-11-20 10:52:19,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:52:19,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:52:19,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:52:19,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:52:19,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:19" (1/1) ... [2022-11-20 10:52:19,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:19" (1/1) ... [2022-11-20 10:52:19,215 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2022-11-20 10:52:19,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:52:19,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:52:19,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:52:19,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:52:19,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:19" (1/1) ... [2022-11-20 10:52:19,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:19" (1/1) ... [2022-11-20 10:52:19,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:19" (1/1) ... [2022-11-20 10:52:19,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:19" (1/1) ... [2022-11-20 10:52:19,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:19" (1/1) ... [2022-11-20 10:52:19,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:19" (1/1) ... [2022-11-20 10:52:19,252 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:19" (1/1) ... [2022-11-20 10:52:19,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:19" (1/1) ... [2022-11-20 10:52:19,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:52:19,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:52:19,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:52:19,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:52:19,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:19" (1/1) ... [2022-11-20 10:52:19,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:52:19,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:52:19,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:52:19,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:52:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:52:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:52:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:52:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:52:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:52:19,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:52:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:52:19,428 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:52:19,430 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:52:19,624 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:52:19,633 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:52:19,636 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 10:52:19,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:52:19 BoogieIcfgContainer [2022-11-20 10:52:19,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:52:19,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:52:19,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:52:19,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:52:19,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:52:18" (1/3) ... [2022-11-20 10:52:19,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f30c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:52:19, skipping insertion in model container [2022-11-20 10:52:19,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:19" (2/3) ... [2022-11-20 10:52:19,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f30c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:52:19, skipping insertion in model container [2022-11-20 10:52:19,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:52:19" (3/3) ... [2022-11-20 10:52:19,651 INFO L112 eAbstractionObserver]: Analyzing ICFG tcpy.c [2022-11-20 10:52:19,671 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:52:19,672 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:52:19,729 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:52:19,735 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;@11cd08a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:52:19,735 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:52:19,740 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) [2022-11-20 10:52:19,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 10:52:19,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:19,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:19,748 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:19,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:19,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1608152958, now seen corresponding path program 1 times [2022-11-20 10:52:19,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:52:19,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653571491] [2022-11-20 10:52:19,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:19,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:52:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:19,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:52:19,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:52:19,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653571491] [2022-11-20 10:52:19,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653571491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:19,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:19,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:52:19,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715231407] [2022-11-20 10:52:19,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:19,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:52:19,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:52:20,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:52:20,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:52:20,013 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) [2022-11-20 10:52:20,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:20,045 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2022-11-20 10:52:20,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:52:20,049 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 [2022-11-20 10:52:20,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:20,057 INFO L225 Difference]: With dead ends: 37 [2022-11-20 10:52:20,057 INFO L226 Difference]: Without dead ends: 17 [2022-11-20 10:52:20,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:52:20,066 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 [2022-11-20 10:52:20,067 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] [2022-11-20 10:52:20,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-20 10:52:20,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-20 10:52:20,097 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) [2022-11-20 10:52:20,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-20 10:52:20,105 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2022-11-20 10:52:20,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:20,106 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-20 10:52:20,107 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) [2022-11-20 10:52:20,107 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-20 10:52:20,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 10:52:20,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:20,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:20,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:52:20,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:20,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:20,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1873320706, now seen corresponding path program 1 times [2022-11-20 10:52:20,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:52:20,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289718701] [2022-11-20 10:52:20,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:20,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:52:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:20,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:52:20,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:52:20,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289718701] [2022-11-20 10:52:20,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289718701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:20,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:20,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:52:20,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131736899] [2022-11-20 10:52:20,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:20,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:52:20,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:52:20,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:52:20,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:20,383 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) [2022-11-20 10:52:20,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:20,458 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-11-20 10:52:20,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:52:20,459 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 [2022-11-20 10:52:20,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:20,460 INFO L225 Difference]: With dead ends: 31 [2022-11-20 10:52:20,460 INFO L226 Difference]: Without dead ends: 19 [2022-11-20 10:52:20,461 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 [2022-11-20 10:52:20,462 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-20 10:52:20,463 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] [2022-11-20 10:52:20,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-20 10:52:20,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-11-20 10:52:20,466 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) [2022-11-20 10:52:20,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-11-20 10:52:20,467 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-11-20 10:52:20,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:20,468 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-11-20 10:52:20,468 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) [2022-11-20 10:52:20,468 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-20 10:52:20,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 10:52:20,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:20,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:20,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:52:20,470 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:20,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:20,470 INFO L85 PathProgramCache]: Analyzing trace with hash -270521828, now seen corresponding path program 1 times [2022-11-20 10:52:20,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:52:20,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656931123] [2022-11-20 10:52:20,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:20,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:52:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:20,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:52:20,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:52:20,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656931123] [2022-11-20 10:52:20,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656931123] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:52:20,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062408567] [2022-11-20 10:52:20,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:20,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:52:20,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:52:20,729 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:52:20,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:52:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:20,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:52:20,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:20,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:52:20,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:52:20,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:52:20,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062408567] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:52:20,962 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:52:20,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-20 10:52:20,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572355848] [2022-11-20 10:52:20,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:52:20,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:52:20,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:52:20,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:52:20,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:52:20,965 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) [2022-11-20 10:52:21,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:21,067 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-11-20 10:52:21,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:52:21,068 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 [2022-11-20 10:52:21,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:21,069 INFO L225 Difference]: With dead ends: 33 [2022-11-20 10:52:21,069 INFO L226 Difference]: Without dead ends: 21 [2022-11-20 10:52:21,070 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 [2022-11-20 10:52:21,072 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 [2022-11-20 10:52:21,073 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] [2022-11-20 10:52:21,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-20 10:52:21,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-11-20 10:52:21,076 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) [2022-11-20 10:52:21,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-20 10:52:21,077 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 14 [2022-11-20 10:52:21,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:21,081 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-20 10:52:21,081 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) [2022-11-20 10:52:21,082 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-20 10:52:21,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 10:52:21,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:21,082 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:21,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:52:21,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:52:21,283 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:21,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:21,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1874059334, now seen corresponding path program 2 times [2022-11-20 10:52:21,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:52:21,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888880439] [2022-11-20 10:52:21,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:21,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:52:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:21,770 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:52:21,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:52:21,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888880439] [2022-11-20 10:52:21,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888880439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:21,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:21,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:52:21,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824020457] [2022-11-20 10:52:21,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:21,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:52:21,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:52:21,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:52:21,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:52:21,773 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) [2022-11-20 10:52:21,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:21,837 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2022-11-20 10:52:21,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:52:21,839 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 [2022-11-20 10:52:21,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:21,840 INFO L225 Difference]: With dead ends: 35 [2022-11-20 10:52:21,840 INFO L226 Difference]: Without dead ends: 28 [2022-11-20 10:52:21,841 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 [2022-11-20 10:52:21,842 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 46 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:21,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 17 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:52:21,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-20 10:52:21,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2022-11-20 10:52:21,847 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) [2022-11-20 10:52:21,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-11-20 10:52:21,848 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 16 [2022-11-20 10:52:21,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:21,848 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-11-20 10:52:21,849 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) [2022-11-20 10:52:21,849 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-11-20 10:52:21,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 10:52:21,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:21,849 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:21,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:52:21,850 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:21,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:21,851 INFO L85 PathProgramCache]: Analyzing trace with hash 265660728, now seen corresponding path program 1 times [2022-11-20 10:52:21,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:52:21,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478388891] [2022-11-20 10:52:21,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:21,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:52:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:22,520 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:52:22,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:52:22,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478388891] [2022-11-20 10:52:22,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478388891] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:52:22,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833897212] [2022-11-20 10:52:22,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:22,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:52:22,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:52:22,524 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:52:22,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:52:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:22,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-20 10:52:22,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:22,671 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 [2022-11-20 10:52:22,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:22,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:22,904 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 [2022-11-20 10:52:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:52:22,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:52:23,061 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:52:23,061 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 [2022-11-20 10:52:23,077 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 [2022-11-20 10:52:28,029 INFO L321 Elim1Store]: treesize reduction 24, result has 22.6 percent of original size [2022-11-20 10:52:28,036 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 [2022-11-20 10:52:28,108 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-20 10:52:28,109 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 [2022-11-20 10:52:28,126 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-20 10:52:28,127 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 [2022-11-20 10:52:28,146 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-20 10:52:28,147 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 [2022-11-20 10:52:28,162 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-20 10:52:28,162 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 [2022-11-20 10:52:28,223 INFO L321 Elim1Store]: treesize reduction 24, result has 22.6 percent of original size [2022-11-20 10:52:28,224 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 [2022-11-20 10:52:28,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:28,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:28,319 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-20 10:52:28,320 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 [2022-11-20 10:52:28,338 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-20 10:52:28,339 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 [2022-11-20 10:52:28,357 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-20 10:52:28,358 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 [2022-11-20 10:52:28,389 INFO L321 Elim1Store]: treesize reduction 10, result has 67.7 percent of original size [2022-11-20 10:52:28,390 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 [2022-11-20 10:52:28,481 INFO L321 Elim1Store]: treesize reduction 18, result has 41.9 percent of original size [2022-11-20 10:52:28,482 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 [2022-11-20 10:52:28,529 INFO L321 Elim1Store]: treesize reduction 20, result has 35.5 percent of original size [2022-11-20 10:52:28,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 611 treesize of output 541 [2022-11-20 10:52:28,619 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-20 10:52:28,622 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 [2022-11-20 10:52:28,644 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-20 10:52:28,645 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 [2022-11-20 10:52:28,666 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-20 10:52:28,666 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 [2022-11-20 10:52:28,709 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-20 10:52:28,710 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 [2022-11-20 10:52:28,741 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-20 10:52:28,741 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 [2022-11-20 10:52:28,807 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-20 10:52:28,807 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 [2022-11-20 10:52:28,898 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-20 10:52:28,899 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 [2022-11-20 10:52:28,967 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 [2022-11-20 10:52:28,999 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 [2022-11-20 10:52:29,036 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 [2022-11-20 10:52:29,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,073 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-20 10:52:29,074 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 [2022-11-20 10:52:29,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,269 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,338 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 10:52:29,338 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 [2022-11-20 10:52:29,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,353 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-20 10:52:29,353 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 [2022-11-20 10:52:29,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,379 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 [2022-11-20 10:52:29,385 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,394 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 [2022-11-20 10:52:29,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,404 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 [2022-11-20 10:52:29,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,486 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,560 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,566 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,754 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,759 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,841 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,847 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:29,848 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 [2022-11-20 10:52:29,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,863 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:29,864 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 [2022-11-20 10:52:29,880 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-20 10:52:29,880 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 [2022-11-20 10:52:29,898 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-20 10:52:29,898 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 [2022-11-20 10:52:29,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,927 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:29,927 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 [2022-11-20 10:52:29,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,954 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,959 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:29,965 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 [2022-11-20 10:52:29,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:29,983 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:29,984 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 [2022-11-20 10:52:29,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,004 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,004 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 [2022-11-20 10:52:30,015 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,021 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,022 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 [2022-11-20 10:52:30,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,038 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,038 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 [2022-11-20 10:52:30,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,054 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,055 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 [2022-11-20 10:52:30,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,070 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,071 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 [2022-11-20 10:52:30,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,087 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,088 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 [2022-11-20 10:52:30,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,105 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,105 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 [2022-11-20 10:52:30,116 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,121 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,122 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 [2022-11-20 10:52:30,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,140 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,141 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 [2022-11-20 10:52:30,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,161 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,161 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 [2022-11-20 10:52:30,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,181 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,182 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 [2022-11-20 10:52:30,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,199 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,200 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 [2022-11-20 10:52:30,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,218 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,218 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 [2022-11-20 10:52:30,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,236 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,236 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 [2022-11-20 10:52:30,247 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,253 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,253 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 [2022-11-20 10:52:30,269 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,275 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:52:30,276 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 [2022-11-20 10:52:30,332 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 [2022-11-20 10:52:30,347 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-20 10:52:30,347 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 [2022-11-20 10:52:30,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,512 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,620 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 [2022-11-20 10:52:30,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,665 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,671 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,721 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 [2022-11-20 10:52:30,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,738 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 [2022-11-20 10:52:30,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,756 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 [2022-11-20 10:52:30,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,787 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 [2022-11-20 10:52:30,795 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,805 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 [2022-11-20 10:52:30,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,824 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 [2022-11-20 10:52:30,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:30,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:30,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:52:31,017 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:52:31,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833897212] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:52:31,017 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:52:31,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 18 [2022-11-20 10:52:31,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087539933] [2022-11-20 10:52:31,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:52:31,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:52:31,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:52:31,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:52:31,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:52:31,019 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) [2022-11-20 10:52:31,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:31,316 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2022-11-20 10:52:31,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:52:31,316 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 [2022-11-20 10:52:31,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:31,316 INFO L225 Difference]: With dead ends: 29 [2022-11-20 10:52:31,317 INFO L226 Difference]: Without dead ends: 27 [2022-11-20 10:52:31,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=204, Invalid=446, Unknown=0, NotChecked=0, Total=650 [2022-11-20 10:52:31,318 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 [2022-11-20 10:52:31,318 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] [2022-11-20 10:52:31,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-20 10:52:31,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2022-11-20 10:52:31,332 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) [2022-11-20 10:52:31,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-11-20 10:52:31,333 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 18 [2022-11-20 10:52:31,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:31,334 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-11-20 10:52:31,334 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) [2022-11-20 10:52:31,334 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-20 10:52:31,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 10:52:31,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:31,335 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:31,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-20 10:52:31,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:52:31,536 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:31,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:31,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1994055598, now seen corresponding path program 1 times [2022-11-20 10:52:31,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:52:31,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398555731] [2022-11-20 10:52:31,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:31,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:52:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:32,437 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:52:32,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:52:32,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398555731] [2022-11-20 10:52:32,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398555731] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:52:32,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511440175] [2022-11-20 10:52:32,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:32,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:52:32,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:52:32,439 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:52:32,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:52:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:32,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-20 10:52:32,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:32,526 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 [2022-11-20 10:52:32,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 10:52:32,749 INFO L321 Elim1Store]: treesize reduction 26, result has 31.6 percent of original size [2022-11-20 10:52:32,749 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 [2022-11-20 10:52:33,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:52:33,016 INFO L321 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-11-20 10:52:33,016 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 [2022-11-20 10:52:33,036 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:52:33,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:52:35,140 WARN L837 $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 [2022-11-20 10:53:18,237 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:53:18,238 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 [2022-11-20 10:53:18,323 INFO L321 Elim1Store]: treesize reduction 39, result has 62.1 percent of original size [2022-11-20 10:53:18,323 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 [2022-11-20 10:53:18,360 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:53:18,361 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 [2022-11-20 10:53:21,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:21,260 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 [2022-11-20 10:53:21,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:21,271 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 [2022-11-20 10:53:21,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:21,278 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:53:21,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:21,286 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:53:21,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:21,292 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:53:21,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:21,309 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 [2022-11-20 10:53:21,311 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:53:21,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:21,340 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 [2022-11-20 10:53:21,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:21,352 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 [2022-11-20 10:53:21,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:21,370 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 [2022-11-20 10:53:21,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:21,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:21,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:21,404 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:21,407 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:53:21,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:21,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:21,426 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 [2022-11-20 10:53:21,430 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:53:21,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:21,445 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:53:21,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:21,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:21,470 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 [2022-11-20 10:53:21,480 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 [2022-11-20 10:53:21,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:21,501 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:53:32,076 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-20 10:53:32,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511440175] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:53:32,077 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:53:32,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 14] total 33 [2022-11-20 10:53:32,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501397993] [2022-11-20 10:53:32,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:53:32,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-20 10:53:32,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:53:32,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-20 10:53:32,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=783, Unknown=17, NotChecked=60, Total=1056 [2022-11-20 10:53:32,080 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) [2022-11-20 10:53:34,635 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base|)) (.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse3 (* 4 c_~SIZE~0))) (and (or (forall ((v_ArrVal_103 Int) (|ULTIMATE.start_main_~acopy~0#1.offset| Int)) (let ((.cse0 (store .cse2 (+ (- 4) .cse3 |ULTIMATE.start_main_~acopy~0#1.offset|) (select .cse4 (+ (- 4) .cse3 |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|) .cse1)))) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 0)) (forall ((v_ArrVal_103 Int) (|ULTIMATE.start_main_~acopy~0#1.offset| Int)) (let ((.cse5 (store (let ((.cse6 (* (- 4) |c_ULTIMATE.start_main_~i~0#1|))) (store .cse2 (+ .cse6 (- 4) .cse3 |ULTIMATE.start_main_~acopy~0#1.offset|) (select .cse4 (+ .cse6 (- 4) .cse3 |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| .cse5) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) (select .cse5 (+ |ULTIMATE.start_main_~acopy~0#1.offset| 4))))))) is different from false [2022-11-20 10:53:35,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:35,516 INFO L93 Difference]: Finished difference Result 82 states and 91 transitions. [2022-11-20 10:53:35,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-20 10:53:35,517 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 [2022-11-20 10:53:35,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:35,518 INFO L225 Difference]: With dead ends: 82 [2022-11-20 10:53:35,519 INFO L226 Difference]: Without dead ends: 71 [2022-11-20 10:53:35,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 58.6s TimeCoverageRelationStatistics Valid=583, Invalid=2059, Unknown=18, NotChecked=202, Total=2862 [2022-11-20 10:53:35,521 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 153 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 171 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:35,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 121 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 230 Invalid, 0 Unknown, 171 Unchecked, 0.4s Time] [2022-11-20 10:53:35,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-20 10:53:35,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 44. [2022-11-20 10:53:35,532 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) [2022-11-20 10:53:35,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-11-20 10:53:35,533 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 22 [2022-11-20 10:53:35,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:35,534 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-11-20 10:53:35,534 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) [2022-11-20 10:53:35,534 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-11-20 10:53:35,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 10:53:35,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:35,535 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:53:35,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-20 10:53:35,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-20 10:53:35,741 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:35,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:35,741 INFO L85 PathProgramCache]: Analyzing trace with hash -757863644, now seen corresponding path program 2 times [2022-11-20 10:53:35,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:53:35,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469190269] [2022-11-20 10:53:35,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:35,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:53:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:35,874 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:53:35,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:53:35,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469190269] [2022-11-20 10:53:35,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469190269] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:53:35,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484377025] [2022-11-20 10:53:35,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:53:35,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:53:35,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:53:35,880 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:53:35,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:53:35,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:53:35,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:53:35,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:53:35,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:36,091 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:53:36,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:53:36,181 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:53:36,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484377025] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:53:36,182 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:53:36,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2022-11-20 10:53:36,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752889361] [2022-11-20 10:53:36,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:53:36,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 10:53:36,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:53:36,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 10:53:36,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:53:36,184 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) [2022-11-20 10:53:36,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:36,413 INFO L93 Difference]: Finished difference Result 83 states and 90 transitions. [2022-11-20 10:53:36,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:53:36,414 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 [2022-11-20 10:53:36,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:36,414 INFO L225 Difference]: With dead ends: 83 [2022-11-20 10:53:36,414 INFO L226 Difference]: Without dead ends: 61 [2022-11-20 10:53:36,415 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 [2022-11-20 10:53:36,416 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 62 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:36,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 58 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:53:36,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-20 10:53:36,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 38. [2022-11-20 10:53:36,428 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) [2022-11-20 10:53:36,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-11-20 10:53:36,429 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 26 [2022-11-20 10:53:36,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:36,429 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-11-20 10:53:36,430 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) [2022-11-20 10:53:36,430 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-11-20 10:53:36,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 10:53:36,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:36,431 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:53:36,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:53:36,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:53:36,637 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:36,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:36,637 INFO L85 PathProgramCache]: Analyzing trace with hash -980493622, now seen corresponding path program 3 times [2022-11-20 10:53:36,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:53:36,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055193807] [2022-11-20 10:53:36,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:36,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:53:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 10:53:37,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:53:37,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055193807] [2022-11-20 10:53:37,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055193807] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:53:37,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201621220] [2022-11-20 10:53:37,146 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 10:53:37,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:53:37,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:53:37,152 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:53:37,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:53:37,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-20 10:53:37,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:53:37,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-20 10:53:37,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:37,253 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 [2022-11-20 10:53:37,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:37,456 INFO L321 Elim1Store]: treesize reduction 20, result has 47.4 percent of original size [2022-11-20 10:53:37,457 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 [2022-11-20 10:53:37,748 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 10:53:37,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:53:37,927 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:53:37,928 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 [2022-11-20 10:53:37,943 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 [2022-11-20 10:53:51,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 395 treesize of output 379 [2022-11-20 10:53:51,130 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-11-20 10:53:51,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 357 treesize of output 282 [2022-11-20 10:53:51,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2022-11-20 10:53:51,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:51,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,188 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 [2022-11-20 10:53:51,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,208 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 [2022-11-20 10:53:51,222 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 [2022-11-20 10:53:51,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:51,261 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 [2022-11-20 10:53:51,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,305 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 [2022-11-20 10:53:51,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,314 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 [2022-11-20 10:53:51,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:51,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:51,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,471 INFO L321 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2022-11-20 10:53:51,471 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 [2022-11-20 10:53:51,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,551 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 [2022-11-20 10:53:51,594 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 10:53:51,594 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 [2022-11-20 10:53:51,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:51,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:51,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:51,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:51,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,648 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 10:53:51,648 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 [2022-11-20 10:53:51,663 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 10:53:51,663 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 [2022-11-20 10:53:51,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,698 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-20 10:53:51,699 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 [2022-11-20 10:53:51,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:51,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:51,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,735 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-20 10:53:51,735 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 [2022-11-20 10:53:51,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:51,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,777 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 10:53:51,777 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 [2022-11-20 10:53:51,792 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 10:53:51,793 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 [2022-11-20 10:53:51,805 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 10:53:51,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 200 treesize of output 1 [2022-11-20 10:53:51,817 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 [2022-11-20 10:53:51,851 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-20 10:53:51,851 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 [2022-11-20 10:53:51,865 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 10:53:51,866 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 [2022-11-20 10:53:51,895 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 10:53:51,896 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 [2022-11-20 10:53:51,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:51,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:51,928 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 10:53:51,929 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 [2022-11-20 10:53:51,946 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 10:53:51,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 139 treesize of output 1 [2022-11-20 10:53:51,967 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 10:53:51,967 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 [2022-11-20 10:53:51,991 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 10:53:51,991 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 [2022-11-20 10:53:52,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,017 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,050 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,058 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:53:52,059 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 [2022-11-20 10:53:52,085 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-20 10:53:52,085 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 65 [2022-11-20 10:53:52,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,147 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:53:52,147 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 [2022-11-20 10:53:52,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,179 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:53:52,179 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 [2022-11-20 10:53:52,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 1 [2022-11-20 10:53:52,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,225 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:53:52,225 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 [2022-11-20 10:53:52,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,240 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,245 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 [2022-11-20 10:53:52,251 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,252 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,260 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 [2022-11-20 10:53:52,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,272 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 [2022-11-20 10:53:52,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,286 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 [2022-11-20 10:53:52,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,306 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:53:52,307 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 [2022-11-20 10:53:52,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,322 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,339 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 [2022-11-20 10:53:52,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,362 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 [2022-11-20 10:53:52,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,388 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,395 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:53:52,396 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 [2022-11-20 10:53:52,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,430 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 [2022-11-20 10:53:52,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,448 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 [2022-11-20 10:53:52,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,459 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 [2022-11-20 10:53:52,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-20 10:53:52,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,487 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 [2022-11-20 10:53:52,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,509 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 [2022-11-20 10:53:52,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,523 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 [2022-11-20 10:53:52,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,533 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 [2022-11-20 10:53:52,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,684 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 [2022-11-20 10:53:52,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2022-11-20 10:53:52,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,715 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,747 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,760 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,766 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 [2022-11-20 10:53:52,770 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-20 10:53:52,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,833 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 [2022-11-20 10:53:52,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,850 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 [2022-11-20 10:53:52,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,875 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:53:52,876 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 [2022-11-20 10:53:52,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,884 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,911 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 [2022-11-20 10:53:52,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-20 10:53:52,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,944 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 [2022-11-20 10:53:52,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,957 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 [2022-11-20 10:53:52,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:52,969 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 [2022-11-20 10:53:52,987 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:52,994 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:53:52,994 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 [2022-11-20 10:53:53,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:53,012 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-20 10:53:53,013 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 [2022-11-20 10:53:53,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:53,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:53:53,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:53:53,256 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 10:53:53,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201621220] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:53:53,256 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:53:53,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 27 [2022-11-20 10:53:53,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468777421] [2022-11-20 10:53:53,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:53:53,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 10:53:53,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:53:53,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 10:53:53,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2022-11-20 10:53:53,259 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) [2022-11-20 10:53:56,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:56,106 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2022-11-20 10:53:56,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-20 10:53:56,107 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 [2022-11-20 10:53:56,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:56,107 INFO L225 Difference]: With dead ends: 101 [2022-11-20 10:53:56,108 INFO L226 Difference]: Without dead ends: 73 [2022-11-20 10:53:56,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1144 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=846, Invalid=3710, Unknown=0, NotChecked=0, Total=4556 [2022-11-20 10:53:56,110 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 252 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:56,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 150 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:53:56,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-20 10:53:56,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 34. [2022-11-20 10:53:56,129 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) [2022-11-20 10:53:56,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-20 10:53:56,132 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 26 [2022-11-20 10:53:56,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:56,134 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-20 10:53:56,134 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) [2022-11-20 10:53:56,135 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-20 10:53:56,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 10:53:56,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:56,136 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:53:56,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:53:56,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:53:56,342 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:56,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:56,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1750966422, now seen corresponding path program 4 times [2022-11-20 10:53:56,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:53:56,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120442412] [2022-11-20 10:53:56,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:56,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:53:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:56,736 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 10:53:56,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:53:56,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120442412] [2022-11-20 10:53:56,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120442412] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:53:56,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613453820] [2022-11-20 10:53:56,737 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 10:53:56,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:53:56,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:53:56,738 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:53:56,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 10:53:56,817 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 10:53:56,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:53:56,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 10:53:56,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:57,027 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 10:53:57,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:53:57,360 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:53:57,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613453820] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:53:57,360 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:53:57,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 13] total 25 [2022-11-20 10:53:57,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420670309] [2022-11-20 10:53:57,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:53:57,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 10:53:57,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:53:57,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 10:53:57,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2022-11-20 10:53:57,363 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) [2022-11-20 10:53:58,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:58,036 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2022-11-20 10:53:58,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 10:53:58,036 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 [2022-11-20 10:53:58,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:58,040 INFO L225 Difference]: With dead ends: 54 [2022-11-20 10:53:58,040 INFO L226 Difference]: Without dead ends: 45 [2022-11-20 10:53:58,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2022-11-20 10:53:58,047 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 138 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:58,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 103 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:53:58,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-20 10:53:58,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 33. [2022-11-20 10:53:58,065 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) [2022-11-20 10:53:58,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-11-20 10:53:58,066 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 26 [2022-11-20 10:53:58,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:58,067 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-11-20 10:53:58,067 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) [2022-11-20 10:53:58,067 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-11-20 10:53:58,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-20 10:53:58,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:58,073 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:53:58,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:53:58,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-20 10:53:58,280 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:58,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:58,280 INFO L85 PathProgramCache]: Analyzing trace with hash 659943902, now seen corresponding path program 5 times [2022-11-20 10:53:58,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:53:58,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511227653] [2022-11-20 10:53:58,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:58,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:53:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:01,376 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:54:01,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:54:01,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511227653] [2022-11-20 10:54:01,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511227653] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:54:01,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283657222] [2022-11-20 10:54:01,377 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 10:54:01,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:54:01,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:54:01,384 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:54:01,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 10:54:01,539 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-11-20 10:54:01,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:54:01,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-20 10:54:01,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:01,555 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 [2022-11-20 10:54:02,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:02,261 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 [2022-11-20 10:54:02,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:02,923 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 [2022-11-20 10:54:02,977 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:54:02,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:54:03,310 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:54:03,311 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 [2022-11-20 10:54:03,648 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-20 10:54:03,648 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 [2022-11-20 10:54:03,654 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 [2022-11-20 10:54:03,695 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-20 10:54:03,695 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 [2022-11-20 10:54:03,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:03,703 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 [2022-11-20 10:54:03,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:03,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:03,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:03,723 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 [2022-11-20 10:54:03,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:03,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:03,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:03,742 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 [2022-11-20 10:54:03,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:03,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:03,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:03,758 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 [2022-11-20 10:54:03,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:03,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:03,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:03,776 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 [2022-11-20 10:54:03,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:03,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:03,797 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-20 10:54:03,798 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 [2022-11-20 10:54:03,809 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-20 10:54:03,809 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 [2022-11-20 10:54:03,820 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-20 10:54:03,820 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 [2022-11-20 10:54:03,880 INFO L321 Elim1Store]: treesize reduction 13, result has 67.5 percent of original size [2022-11-20 10:54:03,881 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 [2022-11-20 10:54:03,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:03,922 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 [2022-11-20 10:54:03,954 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:03,955 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 [2022-11-20 10:54:04,003 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-20 10:54:04,004 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 [2022-11-20 10:54:04,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:04,055 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:04,058 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-20 10:54:04,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:04,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:04,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:04,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:04,104 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-20 10:54:04,104 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 [2022-11-20 10:54:04,196 INFO L321 Elim1Store]: treesize reduction 19, result has 52.5 percent of original size [2022-11-20 10:54:04,197 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 [2022-11-20 10:54:04,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:04,395 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-20 10:54:04,395 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 [2022-11-20 10:54:04,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:04,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:04,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:04,426 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 [2022-11-20 10:54:04,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:04,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:04,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:04,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 1 [2022-11-20 10:54:04,485 INFO L321 Elim1Store]: treesize reduction 23, result has 42.5 percent of original size [2022-11-20 10:54:04,486 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 [2022-11-20 10:54:04,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:04,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:04,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:04,521 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 [2022-11-20 10:54:04,526 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:04,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:54:04,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:04,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:04,549 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-20 10:54:04,549 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 [2022-11-20 10:54:04,576 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-20 10:54:04,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 1 [2022-11-20 10:54:06,321 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:54:06,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283657222] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:54:06,321 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:54:06,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 17] total 49 [2022-11-20 10:54:06,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527955649] [2022-11-20 10:54:06,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:54:06,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-20 10:54:06,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:54:06,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-20 10:54:06,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=1989, Unknown=0, NotChecked=0, Total=2352 [2022-11-20 10:54:06,325 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) [2022-11-20 10:54:13,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:13,177 INFO L93 Difference]: Finished difference Result 128 states and 138 transitions. [2022-11-20 10:54:13,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-20 10:54:13,178 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 [2022-11-20 10:54:13,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:13,179 INFO L225 Difference]: With dead ends: 128 [2022-11-20 10:54:13,179 INFO L226 Difference]: Without dead ends: 113 [2022-11-20 10:54:13,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2302 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=1504, Invalid=7238, Unknown=0, NotChecked=0, Total=8742 [2022-11-20 10:54:13,184 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 422 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:13,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 209 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 595 Invalid, 0 Unknown, 29 Unchecked, 1.0s Time] [2022-11-20 10:54:13,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-20 10:54:13,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 58. [2022-11-20 10:54:13,206 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) [2022-11-20 10:54:13,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2022-11-20 10:54:13,207 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 32 [2022-11-20 10:54:13,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:13,207 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2022-11-20 10:54:13,208 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) [2022-11-20 10:54:13,208 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2022-11-20 10:54:13,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 10:54:13,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:13,209 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:54:13,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:54:13,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:54:13,416 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:13,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:13,417 INFO L85 PathProgramCache]: Analyzing trace with hash -837130924, now seen corresponding path program 6 times [2022-11-20 10:54:13,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:54:13,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169802841] [2022-11-20 10:54:13,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:13,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:54:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:15,913 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:54:15,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:54:15,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169802841] [2022-11-20 10:54:15,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169802841] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:54:15,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378479038] [2022-11-20 10:54:15,914 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-20 10:54:15,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:54:15,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:54:15,916 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:54:15,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94683ca-24f7-4f80-9d51-cf6826c35717/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 10:54:16,057 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-20 10:54:16,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:54:16,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-20 10:54:16,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:16,076 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 [2022-11-20 10:54:16,290 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 [2022-11-20 10:54:16,553 INFO L321 Elim1Store]: treesize reduction 37, result has 28.8 percent of original size [2022-11-20 10:54:16,554 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 [2022-11-20 10:54:16,768 INFO L321 Elim1Store]: treesize reduction 113, result has 25.7 percent of original size [2022-11-20 10:54:16,768 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 [2022-11-20 10:54:17,866 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:54:17,874 INFO L321 Elim1Store]: treesize reduction 18, result has 14.3 percent of original size [2022-11-20 10:54:17,874 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 [2022-11-20 10:54:17,911 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:54:17,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:54:32,611 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:54:32,615 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 [2022-11-20 10:54:39,600 WARN L233 SmtUtils]: Spent 6.98s 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) [2022-11-20 10:54:39,968 INFO L321 Elim1Store]: treesize reduction 85, result has 28.6 percent of original size [2022-11-20 10:54:39,972 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 [2022-11-20 10:54:50,053 WARN L233 SmtUtils]: Spent 10.08s 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) [2022-11-20 10:54:59,853 WARN L233 SmtUtils]: Spent 9.79s 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) [2022-11-20 10:55:00,071 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-20 10:55:00,075 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 [2022-11-20 10:55:09,654 WARN L233 SmtUtils]: Spent 9.58s 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) [2022-11-20 10:55:19,220 WARN L233 SmtUtils]: Spent 9.55s 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) [2022-11-20 10:55:19,667 INFO L321 Elim1Store]: treesize reduction 23, result has 30.3 percent of original size [2022-11-20 10:55:19,674 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