/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 11:46:17,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 11:46:17,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 11:46:17,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 11:46:17,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 11:46:17,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 11:46:17,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 11:46:17,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 11:46:17,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 11:46:17,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 11:46:17,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 11:46:17,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 11:46:17,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 11:46:17,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 11:46:17,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 11:46:17,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 11:46:17,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 11:46:17,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 11:46:17,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 11:46:17,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 11:46:17,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 11:46:17,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 11:46:17,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 11:46:17,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 11:46:17,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 11:46:17,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 11:46:17,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 11:46:17,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 11:46:17,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 11:46:17,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 11:46:17,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 11:46:17,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 11:46:17,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 11:46:17,431 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 11:46:17,432 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 11:46:17,432 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 11:46:17,433 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 11:46:17,433 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 11:46:17,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 11:46:17,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 11:46:17,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 11:46:17,440 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 11:46:17,466 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 11:46:17,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 11:46:17,466 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 11:46:17,466 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 11:46:17,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 11:46:17,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 11:46:17,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 11:46:17,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 11:46:17,468 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 11:46:17,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 11:46:17,468 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 11:46:17,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 11:46:17,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 11:46:17,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 11:46:17,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 11:46:17,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 11:46:17,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 11:46:17,469 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 11:46:17,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 11:46:17,469 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 11:46:17,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 11:46:17,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 11:46:17,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 11:46:17,470 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 11:46:17,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 11:46:17,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:46:17,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 11:46:17,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 11:46:17,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 11:46:17,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 11:46:17,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 11:46:17,471 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 11:46:17,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 11:46:17,471 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 11:46:17,471 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 11:46:17,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 11:46:17,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 11:46:17,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 11:46:17,679 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 11:46:17,683 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 11:46:17,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c [2022-01-18 11:46:17,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5c39b2a9/0a44e902f2164404846b43039e7ee424/FLAG96112b28d [2022-01-18 11:46:18,109 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 11:46:18,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c [2022-01-18 11:46:18,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5c39b2a9/0a44e902f2164404846b43039e7ee424/FLAG96112b28d [2022-01-18 11:46:18,127 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5c39b2a9/0a44e902f2164404846b43039e7ee424 [2022-01-18 11:46:18,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 11:46:18,131 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 11:46:18,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 11:46:18,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 11:46:18,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 11:46:18,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:46:18" (1/1) ... [2022-01-18 11:46:18,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4344a745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:46:18, skipping insertion in model container [2022-01-18 11:46:18,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:46:18" (1/1) ... [2022-01-18 11:46:18,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 11:46:18,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 11:46:18,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2022-01-18 11:46:18,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:46:18,425 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 11:46:18,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2022-01-18 11:46:18,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:46:18,461 INFO L208 MainTranslator]: Completed translation [2022-01-18 11:46:18,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:46:18 WrapperNode [2022-01-18 11:46:18,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 11:46:18,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 11:46:18,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 11:46:18,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 11:46:18,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:46:18" (1/1) ... [2022-01-18 11:46:18,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:46:18" (1/1) ... [2022-01-18 11:46:18,499 INFO L137 Inliner]: procedures = 27, calls = 73, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 245 [2022-01-18 11:46:18,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 11:46:18,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 11:46:18,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 11:46:18,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 11:46:18,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:46:18" (1/1) ... [2022-01-18 11:46:18,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:46:18" (1/1) ... [2022-01-18 11:46:18,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:46:18" (1/1) ... [2022-01-18 11:46:18,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:46:18" (1/1) ... [2022-01-18 11:46:18,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:46:18" (1/1) ... [2022-01-18 11:46:18,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:46:18" (1/1) ... [2022-01-18 11:46:18,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:46:18" (1/1) ... [2022-01-18 11:46:18,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 11:46:18,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 11:46:18,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 11:46:18,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 11:46:18,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:46:18" (1/1) ... [2022-01-18 11:46:18,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:46:18,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:46:18,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 11:46:18,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 11:46:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 11:46:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 11:46:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 11:46:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 11:46:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 11:46:18,600 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 11:46:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 11:46:18,601 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 11:46:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 11:46:18,601 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 11:46:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 11:46:18,601 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 11:46:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 11:46:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 11:46:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 11:46:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-18 11:46:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 11:46:18,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 11:46:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 11:46:18,603 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 11:46:18,681 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 11:46:18,682 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 11:46:19,051 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 11:46:19,159 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 11:46:19,159 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-18 11:46:19,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:46:19 BoogieIcfgContainer [2022-01-18 11:46:19,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 11:46:19,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 11:46:19,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 11:46:19,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 11:46:19,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:46:18" (1/3) ... [2022-01-18 11:46:19,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f074590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:46:19, skipping insertion in model container [2022-01-18 11:46:19,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:46:18" (2/3) ... [2022-01-18 11:46:19,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f074590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:46:19, skipping insertion in model container [2022-01-18 11:46:19,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:46:19" (3/3) ... [2022-01-18 11:46:19,168 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2022-01-18 11:46:19,172 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 11:46:19,172 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 11:46:19,172 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 11:46:19,172 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 11:46:19,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,213 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,213 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,213 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,225 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,225 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,237 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,243 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,243 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,243 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,244 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,249 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,249 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,250 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,251 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,251 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,251 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,251 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,251 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,252 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,253 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,253 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,253 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,253 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,253 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,253 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,253 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,253 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,254 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,254 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,254 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,254 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,254 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,254 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,254 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,255 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,255 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,255 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,255 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,255 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,255 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,255 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,255 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,257 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,257 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,257 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,257 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,257 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,257 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,257 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,257 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,258 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,259 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,259 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,259 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,259 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,261 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,261 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,262 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,262 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,262 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,262 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,262 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,262 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,262 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,263 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,263 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,263 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,263 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,263 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,263 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,264 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,264 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,264 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,264 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,264 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,264 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,264 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,264 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,265 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,265 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,265 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,265 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,266 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,266 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,266 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,266 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,266 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,266 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,266 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,267 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,272 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,272 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,273 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,273 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,273 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,273 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,273 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,273 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,273 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,274 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,274 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,274 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,274 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,279 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,280 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,281 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,281 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,281 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,281 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,281 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,281 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,281 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,282 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,282 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,282 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,282 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,286 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,286 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,286 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,286 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,286 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,287 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,287 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,287 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,287 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,287 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,287 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,287 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,287 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:46:19,293 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2022-01-18 11:46:19,337 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 11:46:19,345 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 11:46:19,345 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-01-18 11:46:19,356 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 204 places, 205 transitions, 454 flow [2022-01-18 11:46:20,379 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 19453 states, 19452 states have (on average 4.476968949208308) internal successors, (87086), 19452 states have internal predecessors, (87086), 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) [2022-01-18 11:46:20,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 19453 states, 19452 states have (on average 4.476968949208308) internal successors, (87086), 19452 states have internal predecessors, (87086), 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) [2022-01-18 11:46:20,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-18 11:46:20,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:46:20,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:46:20,665 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:46:20,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:46:20,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1525994273, now seen corresponding path program 1 times [2022-01-18 11:46:20,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:46:20,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626023086] [2022-01-18 11:46:20,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:46:20,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:46:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:46:20,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:46:20,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:46:20,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626023086] [2022-01-18 11:46:20,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626023086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:46:20,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:46:20,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 11:46:20,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788153944] [2022-01-18 11:46:20,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:46:20,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 11:46:20,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:46:20,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 11:46:21,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 11:46:21,042 INFO L87 Difference]: Start difference. First operand has 19453 states, 19452 states have (on average 4.476968949208308) internal successors, (87086), 19452 states have internal predecessors, (87086), 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 72.5) internal successors, (145), 2 states have internal predecessors, (145), 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) [2022-01-18 11:46:21,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:46:21,475 INFO L93 Difference]: Finished difference Result 19453 states and 81672 transitions. [2022-01-18 11:46:21,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 11:46:21,480 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 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 145 [2022-01-18 11:46:21,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:46:21,807 INFO L225 Difference]: With dead ends: 19453 [2022-01-18 11:46:21,807 INFO L226 Difference]: Without dead ends: 19449 [2022-01-18 11:46:21,809 INFO L932 BasicCegarLoop]: 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 [2022-01-18 11:46:21,812 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:46:21,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:46:21,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19449 states. [2022-01-18 11:46:22,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19449 to 19449. [2022-01-18 11:46:22,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19449 states, 19448 states have (on average 4.199300699300699) internal successors, (81668), 19448 states have internal predecessors, (81668), 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) [2022-01-18 11:46:23,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19449 states to 19449 states and 81668 transitions. [2022-01-18 11:46:23,002 INFO L78 Accepts]: Start accepts. Automaton has 19449 states and 81668 transitions. Word has length 145 [2022-01-18 11:46:23,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:46:23,004 INFO L470 AbstractCegarLoop]: Abstraction has 19449 states and 81668 transitions. [2022-01-18 11:46:23,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 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) [2022-01-18 11:46:23,004 INFO L276 IsEmpty]: Start isEmpty. Operand 19449 states and 81668 transitions. [2022-01-18 11:46:23,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-18 11:46:23,217 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:46:23,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:46:23,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 11:46:23,218 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:46:23,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:46:23,221 INFO L85 PathProgramCache]: Analyzing trace with hash 458105713, now seen corresponding path program 1 times [2022-01-18 11:46:23,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:46:23,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761206428] [2022-01-18 11:46:23,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:46:23,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:46:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:46:23,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:46:23,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:46:23,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761206428] [2022-01-18 11:46:23,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761206428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:46:23,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:46:23,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 11:46:23,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469659871] [2022-01-18 11:46:23,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:46:23,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 11:46:23,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:46:23,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 11:46:23,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 11:46:23,465 INFO L87 Difference]: Start difference. First operand 19449 states and 81668 transitions. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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) [2022-01-18 11:46:24,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:46:24,460 INFO L93 Difference]: Finished difference Result 53531 states and 227422 transitions. [2022-01-18 11:46:24,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 11:46:24,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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 148 [2022-01-18 11:46:24,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:46:24,998 INFO L225 Difference]: With dead ends: 53531 [2022-01-18 11:46:24,998 INFO L226 Difference]: Without dead ends: 51050 [2022-01-18 11:46:24,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:46:25,000 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 127 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:46:25,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 845 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:46:25,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51050 states. [2022-01-18 11:46:26,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51050 to 24095. [2022-01-18 11:46:26,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24095 states, 24094 states have (on average 4.160164356271271) internal successors, (100235), 24094 states have internal predecessors, (100235), 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) [2022-01-18 11:46:26,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24095 states to 24095 states and 100235 transitions. [2022-01-18 11:46:26,401 INFO L78 Accepts]: Start accepts. Automaton has 24095 states and 100235 transitions. Word has length 148 [2022-01-18 11:46:26,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:46:26,403 INFO L470 AbstractCegarLoop]: Abstraction has 24095 states and 100235 transitions. [2022-01-18 11:46:26,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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) [2022-01-18 11:46:26,403 INFO L276 IsEmpty]: Start isEmpty. Operand 24095 states and 100235 transitions. [2022-01-18 11:46:26,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-18 11:46:26,508 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:46:26,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:46:26,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 11:46:26,509 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:46:26,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:46:26,509 INFO L85 PathProgramCache]: Analyzing trace with hash 361817829, now seen corresponding path program 2 times [2022-01-18 11:46:26,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:46:26,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265823610] [2022-01-18 11:46:26,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:46:26,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:46:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:46:26,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:46:26,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:46:26,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265823610] [2022-01-18 11:46:26,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265823610] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:46:26,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:46:26,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 11:46:26,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789505859] [2022-01-18 11:46:26,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:46:26,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 11:46:26,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:46:26,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 11:46:26,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 11:46:26,657 INFO L87 Difference]: Start difference. First operand 24095 states and 100235 transitions. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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) [2022-01-18 11:46:27,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:46:27,484 INFO L93 Difference]: Finished difference Result 54200 states and 230333 transitions. [2022-01-18 11:46:27,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 11:46:27,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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 148 [2022-01-18 11:46:27,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:46:27,773 INFO L225 Difference]: With dead ends: 54200 [2022-01-18 11:46:27,773 INFO L226 Difference]: Without dead ends: 51719 [2022-01-18 11:46:27,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-18 11:46:27,774 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 118 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:46:27,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 986 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:46:27,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51719 states. [2022-01-18 11:46:29,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51719 to 24167. [2022-01-18 11:46:29,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24167 states, 24166 states have (on average 4.15596292311512) internal successors, (100433), 24166 states have internal predecessors, (100433), 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) [2022-01-18 11:46:29,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24167 states to 24167 states and 100433 transitions. [2022-01-18 11:46:29,194 INFO L78 Accepts]: Start accepts. Automaton has 24167 states and 100433 transitions. Word has length 148 [2022-01-18 11:46:29,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:46:29,195 INFO L470 AbstractCegarLoop]: Abstraction has 24167 states and 100433 transitions. [2022-01-18 11:46:29,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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) [2022-01-18 11:46:29,196 INFO L276 IsEmpty]: Start isEmpty. Operand 24167 states and 100433 transitions. [2022-01-18 11:46:29,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-01-18 11:46:29,277 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:46:29,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:46:29,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 11:46:29,278 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:46:29,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:46:29,280 INFO L85 PathProgramCache]: Analyzing trace with hash 602226838, now seen corresponding path program 1 times [2022-01-18 11:46:29,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:46:29,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257321707] [2022-01-18 11:46:29,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:46:29,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:46:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:46:29,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:46:29,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:46:29,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257321707] [2022-01-18 11:46:29,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257321707] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:46:29,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:46:29,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:46:29,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780041340] [2022-01-18 11:46:29,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:46:29,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:46:29,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:46:29,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:46:29,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:46:29,466 INFO L87 Difference]: Start difference. First operand 24167 states and 100433 transitions. Second operand has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 7 states have internal predecessors, (152), 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) [2022-01-18 11:46:30,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:46:30,038 INFO L93 Difference]: Finished difference Result 46408 states and 191388 transitions. [2022-01-18 11:46:30,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:46:30,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 7 states have internal predecessors, (152), 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 152 [2022-01-18 11:46:30,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:46:30,248 INFO L225 Difference]: With dead ends: 46408 [2022-01-18 11:46:30,248 INFO L226 Difference]: Without dead ends: 41314 [2022-01-18 11:46:30,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-18 11:46:30,257 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 657 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:46:30,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [657 Valid, 701 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:46:30,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41314 states. [2022-01-18 11:46:31,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41314 to 31225. [2022-01-18 11:46:31,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31225 states, 31224 states have (on average 4.112477581347681) internal successors, (128408), 31224 states have internal predecessors, (128408), 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) [2022-01-18 11:46:31,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31225 states to 31225 states and 128408 transitions. [2022-01-18 11:46:31,651 INFO L78 Accepts]: Start accepts. Automaton has 31225 states and 128408 transitions. Word has length 152 [2022-01-18 11:46:31,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:46:31,651 INFO L470 AbstractCegarLoop]: Abstraction has 31225 states and 128408 transitions. [2022-01-18 11:46:31,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 7 states have internal predecessors, (152), 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) [2022-01-18 11:46:31,652 INFO L276 IsEmpty]: Start isEmpty. Operand 31225 states and 128408 transitions. [2022-01-18 11:46:31,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-01-18 11:46:31,768 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:46:31,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:46:31,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 11:46:31,769 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:46:31,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:46:31,769 INFO L85 PathProgramCache]: Analyzing trace with hash 925961272, now seen corresponding path program 1 times [2022-01-18 11:46:31,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:46:31,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86762271] [2022-01-18 11:46:31,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:46:31,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:46:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:46:31,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:46:31,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:46:31,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86762271] [2022-01-18 11:46:31,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86762271] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:46:31,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:46:31,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:46:31,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353560522] [2022-01-18 11:46:31,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:46:31,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:46:31,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:46:31,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:46:31,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:46:31,890 INFO L87 Difference]: Start difference. First operand 31225 states and 128408 transitions. Second operand has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 7 states have internal predecessors, (152), 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) [2022-01-18 11:46:32,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:46:32,256 INFO L93 Difference]: Finished difference Result 31662 states and 126747 transitions. [2022-01-18 11:46:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:46:32,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 7 states have internal predecessors, (152), 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 152 [2022-01-18 11:46:32,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:46:32,345 INFO L225 Difference]: With dead ends: 31662 [2022-01-18 11:46:32,345 INFO L226 Difference]: Without dead ends: 20789 [2022-01-18 11:46:32,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-18 11:46:32,346 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 524 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:46:32,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [524 Valid, 645 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:46:32,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20789 states. [2022-01-18 11:46:33,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20789 to 20784. [2022-01-18 11:46:33,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20784 states, 20783 states have (on average 4.053264687484964) internal successors, (84239), 20783 states have internal predecessors, (84239), 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) [2022-01-18 11:46:33,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20784 states to 20784 states and 84239 transitions. [2022-01-18 11:46:33,230 INFO L78 Accepts]: Start accepts. Automaton has 20784 states and 84239 transitions. Word has length 152 [2022-01-18 11:46:33,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:46:33,230 INFO L470 AbstractCegarLoop]: Abstraction has 20784 states and 84239 transitions. [2022-01-18 11:46:33,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 7 states have internal predecessors, (152), 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) [2022-01-18 11:46:33,230 INFO L276 IsEmpty]: Start isEmpty. Operand 20784 states and 84239 transitions. [2022-01-18 11:46:33,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-18 11:46:33,275 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:46:33,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:46:33,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 11:46:33,275 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:46:33,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:46:33,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1263498732, now seen corresponding path program 1 times [2022-01-18 11:46:33,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:46:33,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593689054] [2022-01-18 11:46:33,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:46:33,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:46:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:46:33,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:46:33,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:46:33,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593689054] [2022-01-18 11:46:33,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593689054] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:46:33,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919314570] [2022-01-18 11:46:33,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:46:33,384 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:46:33,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:46:33,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:46:33,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 11:46:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:46:33,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-18 11:46:33,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:46:33,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:46:33,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:46:34,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:46:34,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919314570] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:46:34,354 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:46:34,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-01-18 11:46:34,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461163848] [2022-01-18 11:46:34,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:46:34,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:46:34,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:46:34,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:46:34,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:46:34,356 INFO L87 Difference]: Start difference. First operand 20784 states and 84239 transitions. Second operand has 19 states, 19 states have (on average 10.736842105263158) internal successors, (204), 19 states have internal predecessors, (204), 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) [2022-01-18 11:46:35,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:46:35,049 INFO L93 Difference]: Finished difference Result 39863 states and 160291 transitions. [2022-01-18 11:46:35,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:46:35,049 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 10.736842105263158) internal successors, (204), 19 states have internal predecessors, (204), 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 159 [2022-01-18 11:46:35,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:46:35,501 INFO L225 Difference]: With dead ends: 39863 [2022-01-18 11:46:35,501 INFO L226 Difference]: Without dead ends: 34571 [2022-01-18 11:46:35,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=201, Invalid=555, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:46:35,502 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 1008 mSDsluCounter, 1863 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:46:35,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1008 Valid, 1805 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:46:35,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34571 states. [2022-01-18 11:46:36,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34571 to 26462. [2022-01-18 11:46:36,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26462 states, 26461 states have (on average 4.016930577075696) internal successors, (106292), 26461 states have internal predecessors, (106292), 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) [2022-01-18 11:46:36,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26462 states to 26462 states and 106292 transitions. [2022-01-18 11:46:36,310 INFO L78 Accepts]: Start accepts. Automaton has 26462 states and 106292 transitions. Word has length 159 [2022-01-18 11:46:36,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:46:36,311 INFO L470 AbstractCegarLoop]: Abstraction has 26462 states and 106292 transitions. [2022-01-18 11:46:36,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.736842105263158) internal successors, (204), 19 states have internal predecessors, (204), 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) [2022-01-18 11:46:36,311 INFO L276 IsEmpty]: Start isEmpty. Operand 26462 states and 106292 transitions. [2022-01-18 11:46:36,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-18 11:46:36,380 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:46:36,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:46:36,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 11:46:36,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-01-18 11:46:36,605 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:46:36,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:46:36,606 INFO L85 PathProgramCache]: Analyzing trace with hash -221543642, now seen corresponding path program 1 times [2022-01-18 11:46:36,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:46:36,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208477814] [2022-01-18 11:46:36,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:46:36,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:46:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:46:36,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:46:36,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:46:36,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208477814] [2022-01-18 11:46:36,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208477814] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:46:36,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673906806] [2022-01-18 11:46:36,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:46:36,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:46:36,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:46:36,780 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:46:36,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 11:46:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:46:36,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-18 11:46:36,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:46:37,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:46:37,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:46:37,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:46:37,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673906806] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:46:37,961 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:46:37,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-18 11:46:37,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291727576] [2022-01-18 11:46:37,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:46:37,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 11:46:37,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:46:37,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 11:46:37,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-01-18 11:46:37,963 INFO L87 Difference]: Start difference. First operand 26462 states and 106292 transitions. Second operand has 18 states, 18 states have (on average 11.944444444444445) internal successors, (215), 18 states have internal predecessors, (215), 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) [2022-01-18 11:46:38,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:46:38,427 INFO L93 Difference]: Finished difference Result 24919 states and 99000 transitions. [2022-01-18 11:46:38,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:46:38,428 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 11.944444444444445) internal successors, (215), 18 states have internal predecessors, (215), 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 159 [2022-01-18 11:46:38,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:46:38,504 INFO L225 Difference]: With dead ends: 24919 [2022-01-18 11:46:38,505 INFO L226 Difference]: Without dead ends: 20796 [2022-01-18 11:46:38,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:46:38,505 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 571 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:46:38,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [571 Valid, 1403 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:46:38,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20796 states. [2022-01-18 11:46:38,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20796 to 20791. [2022-01-18 11:46:38,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20791 states, 20790 states have (on average 4.052236652236652) internal successors, (84246), 20790 states have internal predecessors, (84246), 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) [2022-01-18 11:46:38,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20791 states to 20791 states and 84246 transitions. [2022-01-18 11:46:38,992 INFO L78 Accepts]: Start accepts. Automaton has 20791 states and 84246 transitions. Word has length 159 [2022-01-18 11:46:38,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:46:38,993 INFO L470 AbstractCegarLoop]: Abstraction has 20791 states and 84246 transitions. [2022-01-18 11:46:38,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.944444444444445) internal successors, (215), 18 states have internal predecessors, (215), 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) [2022-01-18 11:46:38,993 INFO L276 IsEmpty]: Start isEmpty. Operand 20791 states and 84246 transitions. [2022-01-18 11:46:39,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-01-18 11:46:39,249 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:46:39,249 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:46:39,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 11:46:39,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-01-18 11:46:39,458 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:46:39,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:46:39,458 INFO L85 PathProgramCache]: Analyzing trace with hash 270874326, now seen corresponding path program 2 times [2022-01-18 11:46:39,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:46:39,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193172658] [2022-01-18 11:46:39,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:46:39,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:46:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:46:39,604 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:46:39,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:46:39,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193172658] [2022-01-18 11:46:39,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193172658] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:46:39,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094045127] [2022-01-18 11:46:39,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:46:39,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:46:39,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:46:39,607 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:46:39,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 11:46:39,741 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:46:39,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:46:39,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-18 11:46:39,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:46:40,110 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:46:40,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:46:40,489 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:46:40,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094045127] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 11:46:40,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 11:46:40,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 18 [2022-01-18 11:46:40,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509162984] [2022-01-18 11:46:40,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:46:40,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 11:46:40,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:46:40,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 11:46:40,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-01-18 11:46:40,492 INFO L87 Difference]: Start difference. First operand 20791 states and 84246 transitions. Second operand has 9 states, 9 states have (on average 18.444444444444443) internal successors, (166), 9 states have internal predecessors, (166), 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) [2022-01-18 11:46:40,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:46:40,840 INFO L93 Difference]: Finished difference Result 24097 states and 99434 transitions. [2022-01-18 11:46:40,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 11:46:40,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.444444444444443) internal successors, (166), 9 states have internal predecessors, (166), 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 166 [2022-01-18 11:46:40,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:46:40,938 INFO L225 Difference]: With dead ends: 24097 [2022-01-18 11:46:40,938 INFO L226 Difference]: Without dead ends: 23297 [2022-01-18 11:46:40,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 322 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:46:40,939 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 489 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:46:40,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 599 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:46:40,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23297 states. [2022-01-18 11:46:41,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23297 to 18721. [2022-01-18 11:46:41,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18721 states, 18720 states have (on average 4.096581196581196) internal successors, (76688), 18720 states have internal predecessors, (76688), 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) [2022-01-18 11:46:41,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18721 states to 18721 states and 76688 transitions. [2022-01-18 11:46:41,701 INFO L78 Accepts]: Start accepts. Automaton has 18721 states and 76688 transitions. Word has length 166 [2022-01-18 11:46:41,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:46:41,702 INFO L470 AbstractCegarLoop]: Abstraction has 18721 states and 76688 transitions. [2022-01-18 11:46:41,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.444444444444443) internal successors, (166), 9 states have internal predecessors, (166), 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) [2022-01-18 11:46:41,702 INFO L276 IsEmpty]: Start isEmpty. Operand 18721 states and 76688 transitions. [2022-01-18 11:46:41,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-01-18 11:46:41,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:46:41,744 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:46:41,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 11:46:41,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:46:41,948 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:46:41,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:46:41,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1312829416, now seen corresponding path program 2 times [2022-01-18 11:46:41,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:46:41,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661588183] [2022-01-18 11:46:41,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:46:41,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:46:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:46:42,077 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:46:42,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:46:42,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661588183] [2022-01-18 11:46:42,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661588183] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:46:42,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062111438] [2022-01-18 11:46:42,078 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:46:42,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:46:42,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:46:42,079 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:46:42,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 11:46:42,206 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:46:42,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:46:42,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-18 11:46:42,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:46:42,559 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:46:42,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:46:42,948 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:46:42,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062111438] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 11:46:42,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 11:46:42,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 19 [2022-01-18 11:46:42,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969003257] [2022-01-18 11:46:42,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:46:42,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 11:46:42,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:46:42,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 11:46:42,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:46:42,950 INFO L87 Difference]: Start difference. First operand 18721 states and 76688 transitions. Second operand has 9 states, 9 states have (on average 18.444444444444443) internal successors, (166), 9 states have internal predecessors, (166), 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) [2022-01-18 11:46:43,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:46:43,316 INFO L93 Difference]: Finished difference Result 26816 states and 110778 transitions. [2022-01-18 11:46:43,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 11:46:43,317 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.444444444444443) internal successors, (166), 9 states have internal predecessors, (166), 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 166 [2022-01-18 11:46:43,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:46:43,407 INFO L225 Difference]: With dead ends: 26816 [2022-01-18 11:46:43,407 INFO L226 Difference]: Without dead ends: 23578 [2022-01-18 11:46:43,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 320 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:46:43,408 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 421 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:46:43,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 567 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:46:43,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23578 states. [2022-01-18 11:46:44,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23578 to 20340. [2022-01-18 11:46:44,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20340 states, 20339 states have (on average 4.105708245243129) internal successors, (83506), 20339 states have internal predecessors, (83506), 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) [2022-01-18 11:46:44,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20340 states to 20340 states and 83506 transitions. [2022-01-18 11:46:44,177 INFO L78 Accepts]: Start accepts. Automaton has 20340 states and 83506 transitions. Word has length 166 [2022-01-18 11:46:44,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:46:44,178 INFO L470 AbstractCegarLoop]: Abstraction has 20340 states and 83506 transitions. [2022-01-18 11:46:44,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.444444444444443) internal successors, (166), 9 states have internal predecessors, (166), 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) [2022-01-18 11:46:44,178 INFO L276 IsEmpty]: Start isEmpty. Operand 20340 states and 83506 transitions. [2022-01-18 11:46:44,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:46:44,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:46:44,237 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:46:44,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 11:46:44,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:46:44,452 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:46:44,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:46:44,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1031682445, now seen corresponding path program 1 times [2022-01-18 11:46:44,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:46:44,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162188990] [2022-01-18 11:46:44,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:46:44,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:46:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:46:44,925 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:46:44,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:46:44,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162188990] [2022-01-18 11:46:44,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162188990] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:46:44,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601623052] [2022-01-18 11:46:44,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:46:44,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:46:44,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:46:44,927 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:46:44,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 11:46:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:46:45,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 71 conjunts are in the unsatisfiable core [2022-01-18 11:46:45,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:46:45,112 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:46:45,210 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:46:45,211 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:46:45,652 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-01-18 11:46:45,726 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-01-18 11:46:45,877 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:46:45,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:46:46,085 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_334 (Array Int Int))) (= (+ (* (- 1) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_334) c_~X_0~0.base) (+ c_~X_0~0.offset 4))) c_~s_2~0) 0)) is different from false [2022-01-18 11:46:46,126 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_334 (Array Int Int))) (= (+ (* (- 1) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_334) c_~X_0~0.base) (+ c_~X_0~0.offset 4))) c_~t_4~0 c_~s_2~0) 0)) is different from false [2022-01-18 11:46:46,140 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:46:46,141 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 54 treesize of output 45 [2022-01-18 11:46:46,145 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2022-01-18 11:46:46,461 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 1 not checked. [2022-01-18 11:46:46,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601623052] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:46:46,462 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:46:46,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 17] total 34 [2022-01-18 11:46:46,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681179006] [2022-01-18 11:46:46,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:46:46,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 11:46:46,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:46:46,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 11:46:46,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=896, Unknown=2, NotChecked=122, Total=1122 [2022-01-18 11:46:46,464 INFO L87 Difference]: Start difference. First operand 20340 states and 83506 transitions. Second operand has 34 states, 34 states have (on average 8.705882352941176) internal successors, (296), 34 states have internal predecessors, (296), 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) [2022-01-18 11:46:50,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:46:50,234 INFO L93 Difference]: Finished difference Result 122014 states and 510417 transitions. [2022-01-18 11:46:50,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 11:46:50,235 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 8.705882352941176) internal successors, (296), 34 states have internal predecessors, (296), 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 170 [2022-01-18 11:46:50,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:46:51,325 INFO L225 Difference]: With dead ends: 122014 [2022-01-18 11:46:51,325 INFO L226 Difference]: Without dead ends: 115891 [2022-01-18 11:46:51,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 322 SyntacticMatches, 8 SemanticMatches, 71 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 1213 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=636, Invalid=4340, Unknown=2, NotChecked=278, Total=5256 [2022-01-18 11:46:51,326 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1523 mSDsluCounter, 8704 mSDsCounter, 0 mSdLazyCounter, 3464 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 7851 SdHoareTripleChecker+Invalid, 4479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 3464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 921 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:46:51,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1523 Valid, 7851 Invalid, 4479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 3464 Invalid, 0 Unknown, 921 Unchecked, 1.8s Time] [2022-01-18 11:46:51,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115891 states. [2022-01-18 11:46:53,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115891 to 24786. [2022-01-18 11:46:53,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24786 states, 24785 states have (on average 4.047609441194271) internal successors, (100320), 24785 states have internal predecessors, (100320), 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) [2022-01-18 11:46:53,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24786 states to 24786 states and 100320 transitions. [2022-01-18 11:46:53,167 INFO L78 Accepts]: Start accepts. Automaton has 24786 states and 100320 transitions. Word has length 170 [2022-01-18 11:46:53,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:46:53,167 INFO L470 AbstractCegarLoop]: Abstraction has 24786 states and 100320 transitions. [2022-01-18 11:46:53,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.705882352941176) internal successors, (296), 34 states have internal predecessors, (296), 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) [2022-01-18 11:46:53,167 INFO L276 IsEmpty]: Start isEmpty. Operand 24786 states and 100320 transitions. [2022-01-18 11:46:53,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:46:53,224 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:46:53,224 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:46:53,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 11:46:53,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-18 11:46:53,425 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:46:53,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:46:53,426 INFO L85 PathProgramCache]: Analyzing trace with hash 375242101, now seen corresponding path program 2 times [2022-01-18 11:46:53,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:46:53,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178867326] [2022-01-18 11:46:53,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:46:53,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:46:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:46:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:46:53,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:46:53,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178867326] [2022-01-18 11:46:53,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178867326] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:46:53,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195936086] [2022-01-18 11:46:53,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:46:53,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:46:53,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:46:53,859 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:46:53,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 11:46:53,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:46:53,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:46:53,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-18 11:46:53,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:46:54,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:46:54,502 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-01-18 11:46:54,586 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-01-18 11:46:54,720 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:46:54,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:46:54,920 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_383 (Array Int Int))) (= (+ (* (- 1) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_383) c_~X_0~0.base) (+ c_~X_0~0.offset 4))) c_~s_2~0) 0)) is different from false [2022-01-18 11:46:54,946 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_383 (Array Int Int))) (= (+ c_~t_4~0 (* (- 1) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_383) c_~X_0~0.base) (+ c_~X_0~0.offset 4))) c_~s_2~0) 0)) is different from false [2022-01-18 11:46:54,954 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:46:54,954 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 54 treesize of output 45 [2022-01-18 11:46:54,958 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2022-01-18 11:46:55,383 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 1 not checked. [2022-01-18 11:46:55,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195936086] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:46:55,383 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:46:55,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 39 [2022-01-18 11:46:55,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863920722] [2022-01-18 11:46:55,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:46:55,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-01-18 11:46:55,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:46:55,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-01-18 11:46:55,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1229, Unknown=2, NotChecked=142, Total=1482 [2022-01-18 11:46:55,385 INFO L87 Difference]: Start difference. First operand 24786 states and 100320 transitions. Second operand has 39 states, 39 states have (on average 9.692307692307692) internal successors, (378), 39 states have internal predecessors, (378), 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) [2022-01-18 11:46:59,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:46:59,320 INFO L93 Difference]: Finished difference Result 83170 states and 348238 transitions. [2022-01-18 11:46:59,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:46:59,321 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 9.692307692307692) internal successors, (378), 39 states have internal predecessors, (378), 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 170 [2022-01-18 11:46:59,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:46:59,693 INFO L225 Difference]: With dead ends: 83170 [2022-01-18 11:46:59,693 INFO L226 Difference]: Without dead ends: 76708 [2022-01-18 11:46:59,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 315 SyntacticMatches, 7 SemanticMatches, 72 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 935 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=830, Invalid=4288, Unknown=2, NotChecked=282, Total=5402 [2022-01-18 11:46:59,695 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 2818 mSDsluCounter, 5141 mSDsCounter, 0 mSdLazyCounter, 2087 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2818 SdHoareTripleChecker+Valid, 4795 SdHoareTripleChecker+Invalid, 3481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 2087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1180 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:46:59,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2818 Valid, 4795 Invalid, 3481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 2087 Invalid, 0 Unknown, 1180 Unchecked, 1.0s Time] [2022-01-18 11:46:59,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76708 states. [2022-01-18 11:47:00,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76708 to 26523. [2022-01-18 11:47:01,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26523 states, 26522 states have (on average 4.080159867279994) internal successors, (108214), 26522 states have internal predecessors, (108214), 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) [2022-01-18 11:47:01,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26523 states to 26523 states and 108214 transitions. [2022-01-18 11:47:01,099 INFO L78 Accepts]: Start accepts. Automaton has 26523 states and 108214 transitions. Word has length 170 [2022-01-18 11:47:01,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:47:01,099 INFO L470 AbstractCegarLoop]: Abstraction has 26523 states and 108214 transitions. [2022-01-18 11:47:01,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 9.692307692307692) internal successors, (378), 39 states have internal predecessors, (378), 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) [2022-01-18 11:47:01,100 INFO L276 IsEmpty]: Start isEmpty. Operand 26523 states and 108214 transitions. [2022-01-18 11:47:01,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:47:01,164 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:47:01,164 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:47:01,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 11:47:01,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:01,365 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:47:01,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:47:01,366 INFO L85 PathProgramCache]: Analyzing trace with hash -731419125, now seen corresponding path program 3 times [2022-01-18 11:47:01,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:47:01,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171339196] [2022-01-18 11:47:01,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:47:01,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:47:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:01,719 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:01,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:47:01,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171339196] [2022-01-18 11:47:01,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171339196] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:47:01,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018189271] [2022-01-18 11:47:01,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 11:47:01,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:01,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:47:01,725 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:47:01,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 11:47:01,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 11:47:01,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:47:01,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-18 11:47:01,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:47:02,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:47:02,323 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:47:02,426 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-01-18 11:47:02,561 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:02,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:47:02,825 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_432 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_432) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~t_4~0 1 c_~s_2~0))) (forall ((v_ArrVal_432 (Array Int Int))) (<= (+ c_~t_4~0 c_~s_2~0) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_432) c_~X_0~0.base) (+ c_~X_0~0.offset 4))))) is different from false [2022-01-18 11:47:02,860 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:02,860 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 41 [2022-01-18 11:47:02,864 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-01-18 11:47:02,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:47:02,894 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:02,894 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-18 11:47:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:03,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018189271] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:47:03,329 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:47:03,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 39 [2022-01-18 11:47:03,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291860118] [2022-01-18 11:47:03,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:47:03,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-01-18 11:47:03,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:47:03,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-01-18 11:47:03,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1293, Unknown=1, NotChecked=72, Total=1482 [2022-01-18 11:47:03,331 INFO L87 Difference]: Start difference. First operand 26523 states and 108214 transitions. Second operand has 39 states, 39 states have (on average 8.461538461538462) internal successors, (330), 39 states have internal predecessors, (330), 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) [2022-01-18 11:47:05,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:47:05,880 INFO L93 Difference]: Finished difference Result 68493 states and 289067 transitions. [2022-01-18 11:47:05,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:47:05,880 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 8.461538461538462) internal successors, (330), 39 states have internal predecessors, (330), 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 170 [2022-01-18 11:47:05,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:47:06,151 INFO L225 Difference]: With dead ends: 68493 [2022-01-18 11:47:06,151 INFO L226 Difference]: Without dead ends: 66692 [2022-01-18 11:47:06,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 317 SyntacticMatches, 4 SemanticMatches, 62 ConstructedPredicates, 1 IntricatePredicates, 3 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=558, Invalid=3351, Unknown=1, NotChecked=122, Total=4032 [2022-01-18 11:47:06,153 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 1341 mSDsluCounter, 7996 mSDsCounter, 0 mSdLazyCounter, 2459 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 7166 SdHoareTripleChecker+Invalid, 3240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 695 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:47:06,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1341 Valid, 7166 Invalid, 3240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2459 Invalid, 0 Unknown, 695 Unchecked, 0.9s Time] [2022-01-18 11:47:06,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66692 states. [2022-01-18 11:47:07,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66692 to 26907. [2022-01-18 11:47:07,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26907 states, 26906 states have (on average 4.080353824425779) internal successors, (109786), 26906 states have internal predecessors, (109786), 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) [2022-01-18 11:47:07,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26907 states to 26907 states and 109786 transitions. [2022-01-18 11:47:07,499 INFO L78 Accepts]: Start accepts. Automaton has 26907 states and 109786 transitions. Word has length 170 [2022-01-18 11:47:07,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:47:07,499 INFO L470 AbstractCegarLoop]: Abstraction has 26907 states and 109786 transitions. [2022-01-18 11:47:07,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 8.461538461538462) internal successors, (330), 39 states have internal predecessors, (330), 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) [2022-01-18 11:47:07,499 INFO L276 IsEmpty]: Start isEmpty. Operand 26907 states and 109786 transitions. [2022-01-18 11:47:07,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:47:07,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:47:07,561 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:47:07,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 11:47:07,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:07,762 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:47:07,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:47:07,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1760866055, now seen corresponding path program 4 times [2022-01-18 11:47:07,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:47:07,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038175191] [2022-01-18 11:47:07,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:47:07,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:47:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:08,094 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:08,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:47:08,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038175191] [2022-01-18 11:47:08,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038175191] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:47:08,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502226008] [2022-01-18 11:47:08,095 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 11:47:08,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:08,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:47:08,096 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:47:08,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 11:47:08,227 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 11:47:08,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:47:08,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 71 conjunts are in the unsatisfiable core [2022-01-18 11:47:08,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:47:08,258 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:47:08,335 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:47:08,335 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:47:08,612 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:47:08,690 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:47:08,840 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:47:08,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:47:09,065 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_482 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_482) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~t_4~0 1 c_~s_2~0))) (forall ((v_ArrVal_482 (Array Int Int))) (<= (+ c_~t_4~0 c_~s_2~0) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_482) c_~X_0~0.base) (+ c_~X_0~0.offset 4))))) is different from false [2022-01-18 11:47:09,090 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:09,090 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 39 [2022-01-18 11:47:09,092 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-01-18 11:47:09,122 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:47:09,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:47:09,124 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 5 [2022-01-18 11:47:09,672 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:09,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502226008] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:47:09,673 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:47:09,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19, 17] total 34 [2022-01-18 11:47:09,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471747460] [2022-01-18 11:47:09,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:47:09,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 11:47:09,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:47:09,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 11:47:09,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=957, Unknown=1, NotChecked=62, Total=1122 [2022-01-18 11:47:09,674 INFO L87 Difference]: Start difference. First operand 26907 states and 109786 transitions. Second operand has 34 states, 34 states have (on average 10.029411764705882) internal successors, (341), 34 states have internal predecessors, (341), 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) [2022-01-18 11:47:11,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:47:11,316 INFO L93 Difference]: Finished difference Result 50971 states and 212585 transitions. [2022-01-18 11:47:11,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 11:47:11,316 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 10.029411764705882) internal successors, (341), 34 states have internal predecessors, (341), 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 170 [2022-01-18 11:47:11,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:47:11,492 INFO L225 Difference]: With dead ends: 50971 [2022-01-18 11:47:11,492 INFO L226 Difference]: Without dead ends: 47590 [2022-01-18 11:47:11,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 322 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=589, Invalid=3196, Unknown=1, NotChecked=120, Total=3906 [2022-01-18 11:47:11,493 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 1333 mSDsluCounter, 4672 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 4339 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 319 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:47:11,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1333 Valid, 4339 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1843 Invalid, 0 Unknown, 319 Unchecked, 0.7s Time] [2022-01-18 11:47:11,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47590 states. [2022-01-18 11:47:12,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47590 to 27387. [2022-01-18 11:47:12,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27387 states, 27386 states have (on average 4.085079967866793) internal successors, (111874), 27386 states have internal predecessors, (111874), 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) [2022-01-18 11:47:12,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27387 states to 27387 states and 111874 transitions. [2022-01-18 11:47:12,524 INFO L78 Accepts]: Start accepts. Automaton has 27387 states and 111874 transitions. Word has length 170 [2022-01-18 11:47:12,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:47:12,525 INFO L470 AbstractCegarLoop]: Abstraction has 27387 states and 111874 transitions. [2022-01-18 11:47:12,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.029411764705882) internal successors, (341), 34 states have internal predecessors, (341), 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) [2022-01-18 11:47:12,525 INFO L276 IsEmpty]: Start isEmpty. Operand 27387 states and 111874 transitions. [2022-01-18 11:47:12,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:47:12,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:47:12,587 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:47:12,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-18 11:47:12,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-01-18 11:47:12,788 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:47:12,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:47:12,788 INFO L85 PathProgramCache]: Analyzing trace with hash -719236271, now seen corresponding path program 5 times [2022-01-18 11:47:12,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:47:12,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572808046] [2022-01-18 11:47:12,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:47:12,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:47:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:13,081 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:13,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:47:13,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572808046] [2022-01-18 11:47:13,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572808046] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:47:13,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723118515] [2022-01-18 11:47:13,082 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 11:47:13,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:13,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:47:13,083 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:47:13,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-18 11:47:13,189 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 11:47:13,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:47:13,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 67 conjunts are in the unsatisfiable core [2022-01-18 11:47:13,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:47:13,217 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:47:13,301 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:47:13,301 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:47:13,549 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:47:13,618 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:47:13,748 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:13,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:47:13,991 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_532 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_532) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~t_4~0 c_~s_2~0))) (forall ((v_ArrVal_532 (Array Int Int))) (< (+ c_~t_4~0 c_~s_2~0) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_532) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) 1)))) is different from false [2022-01-18 11:47:14,023 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:14,024 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 52 treesize of output 43 [2022-01-18 11:47:14,027 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 11 [2022-01-18 11:47:14,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:47:14,057 INFO L353 Elim1Store]: treesize reduction 11, result has 26.7 percent of original size [2022-01-18 11:47:14,057 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 10 [2022-01-18 11:47:14,526 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:14,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723118515] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:47:14,527 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:47:14,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 17] total 31 [2022-01-18 11:47:14,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000932919] [2022-01-18 11:47:14,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:47:14,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 11:47:14,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:47:14,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 11:47:14,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=779, Unknown=1, NotChecked=56, Total=930 [2022-01-18 11:47:14,528 INFO L87 Difference]: Start difference. First operand 27387 states and 111874 transitions. Second operand has 31 states, 31 states have (on average 9.225806451612904) internal successors, (286), 31 states have internal predecessors, (286), 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) [2022-01-18 11:47:15,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:47:15,935 INFO L93 Difference]: Finished difference Result 52376 states and 219083 transitions. [2022-01-18 11:47:15,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:47:15,935 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 9.225806451612904) internal successors, (286), 31 states have internal predecessors, (286), 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 170 [2022-01-18 11:47:15,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:47:16,105 INFO L225 Difference]: With dead ends: 52376 [2022-01-18 11:47:16,105 INFO L226 Difference]: Without dead ends: 48515 [2022-01-18 11:47:16,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 325 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=531, Invalid=2552, Unknown=1, NotChecked=108, Total=3192 [2022-01-18 11:47:16,107 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 1153 mSDsluCounter, 3792 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 3625 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 347 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:47:16,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 3625 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1462 Invalid, 0 Unknown, 347 Unchecked, 0.6s Time] [2022-01-18 11:47:16,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48515 states. [2022-01-18 11:47:17,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48515 to 27819. [2022-01-18 11:47:17,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27819 states, 27818 states have (on average 4.088216262851391) internal successors, (113726), 27818 states have internal predecessors, (113726), 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) [2022-01-18 11:47:17,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27819 states to 27819 states and 113726 transitions. [2022-01-18 11:47:17,157 INFO L78 Accepts]: Start accepts. Automaton has 27819 states and 113726 transitions. Word has length 170 [2022-01-18 11:47:17,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:47:17,157 INFO L470 AbstractCegarLoop]: Abstraction has 27819 states and 113726 transitions. [2022-01-18 11:47:17,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 9.225806451612904) internal successors, (286), 31 states have internal predecessors, (286), 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) [2022-01-18 11:47:17,158 INFO L276 IsEmpty]: Start isEmpty. Operand 27819 states and 113726 transitions. [2022-01-18 11:47:17,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:47:17,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:47:17,219 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:47:17,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-01-18 11:47:17,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-01-18 11:47:17,420 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:47:17,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:47:17,421 INFO L85 PathProgramCache]: Analyzing trace with hash 250534987, now seen corresponding path program 6 times [2022-01-18 11:47:17,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:47:17,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994431601] [2022-01-18 11:47:17,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:47:17,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:47:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:17,768 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:17,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:47:17,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994431601] [2022-01-18 11:47:17,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994431601] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:47:17,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770000330] [2022-01-18 11:47:17,769 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 11:47:17,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:17,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:47:17,770 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:47:17,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-18 11:47:17,919 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 11:47:17,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:47:17,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 80 conjunts are in the unsatisfiable core [2022-01-18 11:47:17,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:47:18,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:47:18,519 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:47:18,637 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-01-18 11:47:18,782 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:47:18,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:47:19,056 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_581 (Array Int Int))) (<= (+ c_~t_4~0 c_~s_2~0) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_581) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) (forall ((v_ArrVal_581 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_581) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~t_4~0 1 c_~s_2~0)))) is different from false [2022-01-18 11:47:19,071 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:19,071 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 41 [2022-01-18 11:47:19,074 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-01-18 11:47:19,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:47:19,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:47:19,102 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 3 [2022-01-18 11:47:20,057 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:47:20,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770000330] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:47:20,058 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:47:20,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 23, 26] total 54 [2022-01-18 11:47:20,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475139021] [2022-01-18 11:47:20,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:47:20,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-01-18 11:47:20,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:47:20,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-01-18 11:47:20,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=2513, Unknown=1, NotChecked=102, Total=2862 [2022-01-18 11:47:20,060 INFO L87 Difference]: Start difference. First operand 27819 states and 113726 transitions. Second operand has 54 states, 54 states have (on average 6.277777777777778) internal successors, (339), 54 states have internal predecessors, (339), 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) [2022-01-18 11:47:23,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:47:23,621 INFO L93 Difference]: Finished difference Result 115385 states and 481253 transitions. [2022-01-18 11:47:23,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:47:23,621 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 6.277777777777778) internal successors, (339), 54 states have internal predecessors, (339), 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 170 [2022-01-18 11:47:23,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:47:24,085 INFO L225 Difference]: With dead ends: 115385 [2022-01-18 11:47:24,085 INFO L226 Difference]: Without dead ends: 108623 [2022-01-18 11:47:24,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 300 SyntacticMatches, 8 SemanticMatches, 99 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2343 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1606, Invalid=8297, Unknown=1, NotChecked=196, Total=10100 [2022-01-18 11:47:24,088 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 3254 mSDsluCounter, 6190 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3254 SdHoareTripleChecker+Valid, 5698 SdHoareTripleChecker+Invalid, 3329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 668 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:47:24,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3254 Valid, 5698 Invalid, 3329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2493 Invalid, 0 Unknown, 668 Unchecked, 1.0s Time] [2022-01-18 11:47:24,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108623 states. [2022-01-18 11:47:25,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108623 to 27435. [2022-01-18 11:47:25,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27435 states, 27434 states have (on average 4.08813880586134) internal successors, (112154), 27434 states have internal predecessors, (112154), 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) [2022-01-18 11:47:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27435 states to 27435 states and 112154 transitions. [2022-01-18 11:47:25,892 INFO L78 Accepts]: Start accepts. Automaton has 27435 states and 112154 transitions. Word has length 170 [2022-01-18 11:47:25,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:47:25,892 INFO L470 AbstractCegarLoop]: Abstraction has 27435 states and 112154 transitions. [2022-01-18 11:47:25,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 6.277777777777778) internal successors, (339), 54 states have internal predecessors, (339), 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) [2022-01-18 11:47:25,892 INFO L276 IsEmpty]: Start isEmpty. Operand 27435 states and 112154 transitions. [2022-01-18 11:47:26,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:47:26,339 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:47:26,339 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:47:26,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-18 11:47:26,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-01-18 11:47:26,540 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:47:26,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:47:26,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1084604113, now seen corresponding path program 7 times [2022-01-18 11:47:26,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:47:26,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169677197] [2022-01-18 11:47:26,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:47:26,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:47:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:26,779 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:26,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:47:26,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169677197] [2022-01-18 11:47:26,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169677197] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:47:26,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681319199] [2022-01-18 11:47:26,780 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 11:47:26,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:26,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:47:26,784 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:47:26,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-18 11:47:26,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:26,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 57 conjunts are in the unsatisfiable core [2022-01-18 11:47:26,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:47:27,226 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-01-18 11:47:27,365 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:47:27,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:47:27,547 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:27,547 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 27 [2022-01-18 11:47:27,561 INFO L353 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2022-01-18 11:47:27,562 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 12 [2022-01-18 11:47:27,742 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:27,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681319199] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:47:27,743 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:47:27,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 25 [2022-01-18 11:47:27,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350571975] [2022-01-18 11:47:27,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:47:27,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:47:27,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:47:27,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:47:27,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:47:27,744 INFO L87 Difference]: Start difference. First operand 27435 states and 112154 transitions. Second operand has 25 states, 25 states have (on average 9.36) internal successors, (234), 25 states have internal predecessors, (234), 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) [2022-01-18 11:47:28,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:47:28,824 INFO L93 Difference]: Finished difference Result 53180 states and 221733 transitions. [2022-01-18 11:47:28,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:47:28,824 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.36) internal successors, (234), 25 states have internal predecessors, (234), 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 170 [2022-01-18 11:47:28,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:47:29,018 INFO L225 Difference]: With dead ends: 53180 [2022-01-18 11:47:29,019 INFO L226 Difference]: Without dead ends: 49799 [2022-01-18 11:47:29,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 329 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=251, Invalid=1729, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:47:29,020 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 869 mSDsluCounter, 4023 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 3794 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:47:29,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [869 Valid, 3794 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:47:29,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49799 states. [2022-01-18 11:47:30,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49799 to 28491. [2022-01-18 11:47:30,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28491 states, 28490 states have (on average 4.097086697086697) internal successors, (116726), 28490 states have internal predecessors, (116726), 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) [2022-01-18 11:47:30,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28491 states to 28491 states and 116726 transitions. [2022-01-18 11:47:30,166 INFO L78 Accepts]: Start accepts. Automaton has 28491 states and 116726 transitions. Word has length 170 [2022-01-18 11:47:30,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:47:30,166 INFO L470 AbstractCegarLoop]: Abstraction has 28491 states and 116726 transitions. [2022-01-18 11:47:30,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.36) internal successors, (234), 25 states have internal predecessors, (234), 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) [2022-01-18 11:47:30,167 INFO L276 IsEmpty]: Start isEmpty. Operand 28491 states and 116726 transitions. [2022-01-18 11:47:30,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:47:30,233 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:47:30,233 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:47:30,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-18 11:47:30,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-01-18 11:47:30,434 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:47:30,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:47:30,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1652755541, now seen corresponding path program 8 times [2022-01-18 11:47:30,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:47:30,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168546657] [2022-01-18 11:47:30,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:47:30,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:47:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:30,631 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:30,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:47:30,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168546657] [2022-01-18 11:47:30,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168546657] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:47:30,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861519547] [2022-01-18 11:47:30,632 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:47:30,632 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:30,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:47:30,633 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:47:30,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-18 11:47:30,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:47:30,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:47:30,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 49 conjunts are in the unsatisfiable core [2022-01-18 11:47:30,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:47:31,012 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:47:31,156 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:31,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:47:31,520 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:31,520 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 26 [2022-01-18 11:47:31,536 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:31,536 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 27 [2022-01-18 11:47:31,770 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:31,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861519547] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:47:31,770 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:47:31,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 10] total 22 [2022-01-18 11:47:31,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284756798] [2022-01-18 11:47:31,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:47:31,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 11:47:31,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:47:31,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 11:47:31,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:47:31,772 INFO L87 Difference]: Start difference. First operand 28491 states and 116726 transitions. Second operand has 22 states, 22 states have (on average 10.318181818181818) internal successors, (227), 22 states have internal predecessors, (227), 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) [2022-01-18 11:47:32,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:47:32,588 INFO L93 Difference]: Finished difference Result 49952 states and 208073 transitions. [2022-01-18 11:47:32,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:47:32,588 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.318181818181818) internal successors, (227), 22 states have internal predecessors, (227), 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 170 [2022-01-18 11:47:32,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:47:32,774 INFO L225 Difference]: With dead ends: 49952 [2022-01-18 11:47:32,774 INFO L226 Difference]: Without dead ends: 49771 [2022-01-18 11:47:32,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 332 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=1134, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:47:32,775 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 699 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 3002 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:47:32,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [699 Valid, 3002 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 694 Invalid, 0 Unknown, 80 Unchecked, 0.3s Time] [2022-01-18 11:47:32,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49771 states. [2022-01-18 11:47:33,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49771 to 32355. [2022-01-18 11:47:33,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32355 states, 32354 states have (on average 4.103480249737282) internal successors, (132764), 32354 states have internal predecessors, (132764), 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) [2022-01-18 11:47:33,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32355 states to 32355 states and 132764 transitions. [2022-01-18 11:47:33,905 INFO L78 Accepts]: Start accepts. Automaton has 32355 states and 132764 transitions. Word has length 170 [2022-01-18 11:47:33,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:47:33,905 INFO L470 AbstractCegarLoop]: Abstraction has 32355 states and 132764 transitions. [2022-01-18 11:47:33,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.318181818181818) internal successors, (227), 22 states have internal predecessors, (227), 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) [2022-01-18 11:47:33,906 INFO L276 IsEmpty]: Start isEmpty. Operand 32355 states and 132764 transitions. [2022-01-18 11:47:33,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:47:33,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:47:33,980 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:47:33,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-01-18 11:47:34,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-01-18 11:47:34,186 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:47:34,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:47:34,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1243931316, now seen corresponding path program 1 times [2022-01-18 11:47:34,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:47:34,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200589351] [2022-01-18 11:47:34,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:47:34,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:47:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:34,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:47:34,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200589351] [2022-01-18 11:47:34,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200589351] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:47:34,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922270475] [2022-01-18 11:47:34,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:47:34,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:34,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:47:34,448 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:47:34,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-18 11:47:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:34,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 57 conjunts are in the unsatisfiable core [2022-01-18 11:47:34,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:47:34,860 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:47:35,005 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:47:35,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:47:35,175 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:35,175 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 27 [2022-01-18 11:47:35,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:47:35,191 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:35,191 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 12 [2022-01-18 11:47:35,393 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:35,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922270475] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:47:35,394 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:47:35,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 24 [2022-01-18 11:47:35,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225172131] [2022-01-18 11:47:35,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:47:35,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:47:35,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:47:35,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:47:35,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:47:35,395 INFO L87 Difference]: Start difference. First operand 32355 states and 132764 transitions. Second operand has 24 states, 24 states have (on average 9.708333333333334) internal successors, (233), 24 states have internal predecessors, (233), 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) [2022-01-18 11:47:36,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:47:36,570 INFO L93 Difference]: Finished difference Result 52813 states and 219690 transitions. [2022-01-18 11:47:36,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:47:36,570 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.708333333333334) internal successors, (233), 24 states have internal predecessors, (233), 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 170 [2022-01-18 11:47:36,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:47:36,745 INFO L225 Difference]: With dead ends: 52813 [2022-01-18 11:47:36,745 INFO L226 Difference]: Without dead ends: 47812 [2022-01-18 11:47:36,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 330 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=240, Invalid=1566, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 11:47:36,746 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 732 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 3200 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:47:36,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 3200 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:47:36,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47812 states. [2022-01-18 11:47:37,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47812 to 28611. [2022-01-18 11:47:37,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28611 states, 28610 states have (on average 4.098147500873821) internal successors, (117248), 28610 states have internal predecessors, (117248), 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) [2022-01-18 11:47:37,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28611 states to 28611 states and 117248 transitions. [2022-01-18 11:47:37,910 INFO L78 Accepts]: Start accepts. Automaton has 28611 states and 117248 transitions. Word has length 170 [2022-01-18 11:47:37,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:47:37,911 INFO L470 AbstractCegarLoop]: Abstraction has 28611 states and 117248 transitions. [2022-01-18 11:47:37,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.708333333333334) internal successors, (233), 24 states have internal predecessors, (233), 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) [2022-01-18 11:47:37,911 INFO L276 IsEmpty]: Start isEmpty. Operand 28611 states and 117248 transitions. [2022-01-18 11:47:37,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:47:37,991 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:47:37,991 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:47:38,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-01-18 11:47:38,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-01-18 11:47:38,204 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:47:38,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:47:38,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1396512105, now seen corresponding path program 9 times [2022-01-18 11:47:38,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:47:38,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523476770] [2022-01-18 11:47:38,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:47:38,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:47:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:38,419 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:38,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:47:38,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523476770] [2022-01-18 11:47:38,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523476770] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:47:38,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417657786] [2022-01-18 11:47:38,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 11:47:38,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:38,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:47:38,424 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:47:38,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-18 11:47:38,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 11:47:38,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:47:38,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 49 conjunts are in the unsatisfiable core [2022-01-18 11:47:38,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:47:38,822 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:47:38,955 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:38,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:47:39,116 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:39,117 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 27 [2022-01-18 11:47:39,130 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:39,130 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 26 [2022-01-18 11:47:39,364 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:39,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417657786] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:47:39,365 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:47:39,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 10] total 22 [2022-01-18 11:47:39,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145007059] [2022-01-18 11:47:39,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:47:39,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 11:47:39,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:47:39,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 11:47:39,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:47:39,366 INFO L87 Difference]: Start difference. First operand 28611 states and 117248 transitions. Second operand has 22 states, 22 states have (on average 10.318181818181818) internal successors, (227), 22 states have internal predecessors, (227), 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) [2022-01-18 11:47:40,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:47:40,242 INFO L93 Difference]: Finished difference Result 48952 states and 204003 transitions. [2022-01-18 11:47:40,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:47:40,242 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.318181818181818) internal successors, (227), 22 states have internal predecessors, (227), 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 170 [2022-01-18 11:47:40,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:47:40,797 INFO L225 Difference]: With dead ends: 48952 [2022-01-18 11:47:40,797 INFO L226 Difference]: Without dead ends: 45331 [2022-01-18 11:47:40,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 331 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=202, Invalid=1130, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:47:40,798 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 643 mSDsluCounter, 3454 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 3343 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:47:40,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [643 Valid, 3343 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 953 Invalid, 0 Unknown, 81 Unchecked, 0.4s Time] [2022-01-18 11:47:40,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45331 states. [2022-01-18 11:47:41,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45331 to 28131. [2022-01-18 11:47:41,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28131 states, 28130 states have (on average 4.093849982225382) internal successors, (115160), 28130 states have internal predecessors, (115160), 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) [2022-01-18 11:47:41,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28131 states to 28131 states and 115160 transitions. [2022-01-18 11:47:41,577 INFO L78 Accepts]: Start accepts. Automaton has 28131 states and 115160 transitions. Word has length 170 [2022-01-18 11:47:41,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:47:41,578 INFO L470 AbstractCegarLoop]: Abstraction has 28131 states and 115160 transitions. [2022-01-18 11:47:41,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.318181818181818) internal successors, (227), 22 states have internal predecessors, (227), 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) [2022-01-18 11:47:41,578 INFO L276 IsEmpty]: Start isEmpty. Operand 28131 states and 115160 transitions. [2022-01-18 11:47:41,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:47:41,641 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:47:41,642 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:47:41,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-01-18 11:47:41,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:41,842 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:47:41,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:47:41,843 INFO L85 PathProgramCache]: Analyzing trace with hash 59627217, now seen corresponding path program 10 times [2022-01-18 11:47:41,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:47:41,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933013520] [2022-01-18 11:47:41,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:47:41,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:47:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:42,339 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:42,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:47:42,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933013520] [2022-01-18 11:47:42,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933013520] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:47:42,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311997561] [2022-01-18 11:47:42,339 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 11:47:42,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:42,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:47:42,344 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:47:42,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-18 11:47:42,472 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 11:47:42,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:47:42,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 57 conjunts are in the unsatisfiable core [2022-01-18 11:47:42,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:47:42,740 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:47:42,886 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:47:42,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:47:43,071 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:43,071 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 27 [2022-01-18 11:47:43,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:47:43,084 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:43,084 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 12 [2022-01-18 11:47:43,280 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:43,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311997561] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:47:43,281 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:47:43,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 24 [2022-01-18 11:47:43,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587231860] [2022-01-18 11:47:43,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:47:43,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:47:43,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:47:43,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:47:43,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:47:43,282 INFO L87 Difference]: Start difference. First operand 28131 states and 115160 transitions. Second operand has 24 states, 24 states have (on average 9.708333333333334) internal successors, (233), 24 states have internal predecessors, (233), 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) [2022-01-18 11:47:44,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:47:44,250 INFO L93 Difference]: Finished difference Result 49455 states and 205944 transitions. [2022-01-18 11:47:44,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:47:44,250 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.708333333333334) internal successors, (233), 24 states have internal predecessors, (233), 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 170 [2022-01-18 11:47:44,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:47:44,414 INFO L225 Difference]: With dead ends: 49455 [2022-01-18 11:47:44,414 INFO L226 Difference]: Without dead ends: 46074 [2022-01-18 11:47:44,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 329 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=247, Invalid=1559, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 11:47:44,415 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 756 mSDsluCounter, 3773 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:47:44,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [756 Valid, 3574 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:47:44,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46074 states. [2022-01-18 11:47:45,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46074 to 28471. [2022-01-18 11:47:45,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28471 states, 28470 states have (on average 4.097330523357921) internal successors, (116651), 28470 states have internal predecessors, (116651), 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) [2022-01-18 11:47:45,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28471 states to 28471 states and 116651 transitions. [2022-01-18 11:47:45,463 INFO L78 Accepts]: Start accepts. Automaton has 28471 states and 116651 transitions. Word has length 170 [2022-01-18 11:47:45,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:47:45,463 INFO L470 AbstractCegarLoop]: Abstraction has 28471 states and 116651 transitions. [2022-01-18 11:47:45,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.708333333333334) internal successors, (233), 24 states have internal predecessors, (233), 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) [2022-01-18 11:47:45,463 INFO L276 IsEmpty]: Start isEmpty. Operand 28471 states and 116651 transitions. [2022-01-18 11:47:45,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:47:45,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:47:45,526 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:47:45,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-01-18 11:47:45,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:45,727 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:47:45,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:47:45,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1305326867, now seen corresponding path program 11 times [2022-01-18 11:47:45,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:47:45,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288156157] [2022-01-18 11:47:45,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:47:45,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:47:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:45,938 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:45,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:47:45,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288156157] [2022-01-18 11:47:45,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288156157] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:47:45,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527676734] [2022-01-18 11:47:45,939 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 11:47:45,939 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:45,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:47:45,944 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:47:45,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-01-18 11:47:46,072 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 11:47:46,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:47:46,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 80 conjunts are in the unsatisfiable core [2022-01-18 11:47:46,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:47:46,311 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:47:46,514 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-01-18 11:47:46,658 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:47:46,704 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:47:46,704 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:47:46,800 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 5 [2022-01-18 11:47:46,869 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:47:46,938 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:47:47,041 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:47:47,182 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:47:47,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:47:47,492 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_876 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_876) c_~X_0~0.base))) (< (+ c_~s_2~0 (select .cse0 (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0)))) (+ (select .cse0 (+ c_~X_0~0.offset 4)) 1)))) (forall ((v_ArrVal_876 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_876) c_~X_0~0.base))) (<= (select .cse1 (+ c_~X_0~0.offset 4)) (+ c_~s_2~0 (select .cse1 (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0)))))))) is different from false [2022-01-18 11:47:47,551 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_876 (Array Int Int)) (v_ArrVal_875 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_875) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_876) c_~X_0~0.base))) (< (+ (select .cse0 (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ (select .cse0 (+ c_~X_0~0.offset 4)) 1)))) (forall ((v_ArrVal_876 (Array Int Int)) (v_ArrVal_875 (Array Int Int))) (let ((.cse1 (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_875) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_876) c_~X_0~0.base))) (<= (select .cse1 (+ c_~X_0~0.offset 4)) (+ (select .cse1 (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0))))) is different from false [2022-01-18 11:47:47,773 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_876 (Array Int Int)) (v_ArrVal_875 (Array Int Int)) (v_ArrVal_874 (Array Int Int))) (let ((.cse0 (select (store (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_874) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_875) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_876) c_~X_0~0.base))) (<= (select .cse0 (+ c_~X_0~0.offset 4)) (+ (select .cse0 (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0)))) (forall ((v_ArrVal_876 (Array Int Int)) (v_ArrVal_875 (Array Int Int)) (v_ArrVal_874 (Array Int Int))) (let ((.cse1 (select (store (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_874) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_875) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_876) c_~X_0~0.base))) (< (+ (select .cse1 (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ (select .cse1 (+ c_~X_0~0.offset 4)) 1))))) is different from false [2022-01-18 11:47:47,906 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 1 not checked. [2022-01-18 11:47:47,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527676734] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:47:47,906 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:47:47,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 26, 13] total 42 [2022-01-18 11:47:47,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129669517] [2022-01-18 11:47:47,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:47:47,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-01-18 11:47:47,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:47:47,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-01-18 11:47:47,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1350, Unknown=3, NotChecked=228, Total=1722 [2022-01-18 11:47:47,908 INFO L87 Difference]: Start difference. First operand 28471 states and 116651 transitions. Second operand has 42 states, 42 states have (on average 7.904761904761905) internal successors, (332), 42 states have internal predecessors, (332), 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) [2022-01-18 11:47:50,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:47:50,380 INFO L93 Difference]: Finished difference Result 49413 states and 205998 transitions. [2022-01-18 11:47:50,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:47:50,381 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 7.904761904761905) internal successors, (332), 42 states have internal predecessors, (332), 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 170 [2022-01-18 11:47:50,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:47:50,539 INFO L225 Difference]: With dead ends: 49413 [2022-01-18 11:47:50,540 INFO L226 Difference]: Without dead ends: 45792 [2022-01-18 11:47:50,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 317 SyntacticMatches, 7 SemanticMatches, 71 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 925 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=697, Invalid=4142, Unknown=3, NotChecked=414, Total=5256 [2022-01-18 11:47:50,541 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 1820 mSDsluCounter, 5220 mSDsCounter, 0 mSdLazyCounter, 2429 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1820 SdHoareTripleChecker+Valid, 4758 SdHoareTripleChecker+Invalid, 3526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1016 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:47:50,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1820 Valid, 4758 Invalid, 3526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2429 Invalid, 0 Unknown, 1016 Unchecked, 1.0s Time] [2022-01-18 11:47:50,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45792 states. [2022-01-18 11:47:51,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45792 to 28703. [2022-01-18 11:47:51,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28703 states, 28702 states have (on average 4.099122012403317) internal successors, (117653), 28702 states have internal predecessors, (117653), 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) [2022-01-18 11:47:51,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28703 states to 28703 states and 117653 transitions. [2022-01-18 11:47:51,540 INFO L78 Accepts]: Start accepts. Automaton has 28703 states and 117653 transitions. Word has length 170 [2022-01-18 11:47:51,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:47:51,540 INFO L470 AbstractCegarLoop]: Abstraction has 28703 states and 117653 transitions. [2022-01-18 11:47:51,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.904761904761905) internal successors, (332), 42 states have internal predecessors, (332), 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) [2022-01-18 11:47:51,540 INFO L276 IsEmpty]: Start isEmpty. Operand 28703 states and 117653 transitions. [2022-01-18 11:47:51,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:47:51,600 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:47:51,600 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:47:51,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-01-18 11:47:51,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:51,802 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:47:51,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:47:51,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1227671575, now seen corresponding path program 12 times [2022-01-18 11:47:51,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:47:51,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196013695] [2022-01-18 11:47:51,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:47:51,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:47:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:52,032 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:52,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:47:52,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196013695] [2022-01-18 11:47:52,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196013695] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:47:52,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698898922] [2022-01-18 11:47:52,033 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 11:47:52,033 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:52,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:47:52,034 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:47:52,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-01-18 11:47:52,302 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 11:47:52,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:47:52,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 63 conjunts are in the unsatisfiable core [2022-01-18 11:47:52,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:47:52,732 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:52,733 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 25 [2022-01-18 11:47:52,940 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:47:52,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:47:53,175 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:53,175 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 34 [2022-01-18 11:47:54,071 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:47:54,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698898922] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:47:54,071 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:47:54,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 17] total 38 [2022-01-18 11:47:54,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022656430] [2022-01-18 11:47:54,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:47:54,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-01-18 11:47:54,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:47:54,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-01-18 11:47:54,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1232, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:47:54,074 INFO L87 Difference]: Start difference. First operand 28703 states and 117653 transitions. Second operand has 38 states, 38 states have (on average 8.421052631578947) internal successors, (320), 38 states have internal predecessors, (320), 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) [2022-01-18 11:47:56,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:47:56,526 INFO L93 Difference]: Finished difference Result 86153 states and 361574 transitions. [2022-01-18 11:47:56,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:47:56,526 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 8.421052631578947) internal successors, (320), 38 states have internal predecessors, (320), 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 170 [2022-01-18 11:47:56,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:47:56,938 INFO L225 Difference]: With dead ends: 86153 [2022-01-18 11:47:56,938 INFO L226 Difference]: Without dead ends: 82532 [2022-01-18 11:47:56,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 321 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 989 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=831, Invalid=3999, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 11:47:56,939 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 2503 mSDsluCounter, 5284 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2503 SdHoareTripleChecker+Valid, 4959 SdHoareTripleChecker+Invalid, 2268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 194 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:47:56,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2503 Valid, 4959 Invalid, 2268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1988 Invalid, 0 Unknown, 194 Unchecked, 0.8s Time] [2022-01-18 11:47:57,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82532 states. [2022-01-18 11:47:58,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82532 to 30023. [2022-01-18 11:47:58,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30023 states, 30022 states have (on average 4.112550796082872) internal successors, (123467), 30022 states have internal predecessors, (123467), 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) [2022-01-18 11:47:58,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30023 states to 30023 states and 123467 transitions. [2022-01-18 11:47:58,476 INFO L78 Accepts]: Start accepts. Automaton has 30023 states and 123467 transitions. Word has length 170 [2022-01-18 11:47:58,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:47:58,477 INFO L470 AbstractCegarLoop]: Abstraction has 30023 states and 123467 transitions. [2022-01-18 11:47:58,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 8.421052631578947) internal successors, (320), 38 states have internal predecessors, (320), 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) [2022-01-18 11:47:58,477 INFO L276 IsEmpty]: Start isEmpty. Operand 30023 states and 123467 transitions. [2022-01-18 11:47:58,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:47:58,547 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:47:58,547 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:47:58,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-01-18 11:47:58,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:58,749 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:47:58,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:47:58,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1802015637, now seen corresponding path program 1 times [2022-01-18 11:47:58,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:47:58,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388057003] [2022-01-18 11:47:58,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:47:58,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:47:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:59,081 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:47:59,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:47:59,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388057003] [2022-01-18 11:47:59,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388057003] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:47:59,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362529913] [2022-01-18 11:47:59,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:47:59,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:47:59,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:47:59,083 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:47:59,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-01-18 11:47:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:47:59,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 71 conjunts are in the unsatisfiable core [2022-01-18 11:47:59,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:47:59,231 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:47:59,309 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:47:59,309 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:47:59,611 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:47:59,669 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:47:59,782 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:47:59,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:47:59,945 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_974 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_974) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) c_~s_2~0)) is different from false [2022-01-18 11:47:59,981 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_974 (Array Int Int))) (= (+ c_~t_5~0 c_~s_2~0) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_974) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) is different from false [2022-01-18 11:47:59,996 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:47:59,997 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 39 [2022-01-18 11:47:59,999 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-01-18 11:48:00,246 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 1 not checked. [2022-01-18 11:48:00,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362529913] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:48:00,246 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:48:00,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 17] total 36 [2022-01-18 11:48:00,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986308973] [2022-01-18 11:48:00,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:48:00,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-01-18 11:48:00,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:48:00,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-01-18 11:48:00,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1022, Unknown=2, NotChecked=130, Total=1260 [2022-01-18 11:48:00,248 INFO L87 Difference]: Start difference. First operand 30023 states and 123467 transitions. Second operand has 36 states, 36 states have (on average 9.666666666666666) internal successors, (348), 36 states have internal predecessors, (348), 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) [2022-01-18 11:48:03,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:48:03,105 INFO L93 Difference]: Finished difference Result 120566 states and 510895 transitions. [2022-01-18 11:48:03,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:48:03,105 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 9.666666666666666) internal successors, (348), 36 states have internal predecessors, (348), 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 170 [2022-01-18 11:48:03,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:48:04,118 INFO L225 Difference]: With dead ends: 120566 [2022-01-18 11:48:04,118 INFO L226 Difference]: Without dead ends: 117545 [2022-01-18 11:48:04,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 318 SyntacticMatches, 8 SemanticMatches, 65 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 959 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=519, Invalid=3647, Unknown=2, NotChecked=254, Total=4422 [2022-01-18 11:48:04,119 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 1868 mSDsluCounter, 7297 mSDsCounter, 0 mSdLazyCounter, 2987 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1868 SdHoareTripleChecker+Valid, 6592 SdHoareTripleChecker+Invalid, 3902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 823 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:48:04,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1868 Valid, 6592 Invalid, 3902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2987 Invalid, 0 Unknown, 823 Unchecked, 1.4s Time] [2022-01-18 11:48:04,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117545 states. [2022-01-18 11:48:05,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117545 to 30533. [2022-01-18 11:48:05,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30533 states, 30532 states have (on average 4.111096554434692) internal successors, (125520), 30532 states have internal predecessors, (125520), 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) [2022-01-18 11:48:05,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30533 states to 30533 states and 125520 transitions. [2022-01-18 11:48:05,960 INFO L78 Accepts]: Start accepts. Automaton has 30533 states and 125520 transitions. Word has length 170 [2022-01-18 11:48:05,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:48:05,960 INFO L470 AbstractCegarLoop]: Abstraction has 30533 states and 125520 transitions. [2022-01-18 11:48:05,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 9.666666666666666) internal successors, (348), 36 states have internal predecessors, (348), 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) [2022-01-18 11:48:05,960 INFO L276 IsEmpty]: Start isEmpty. Operand 30533 states and 125520 transitions. [2022-01-18 11:48:06,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:48:06,027 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:48:06,027 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:48:06,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-01-18 11:48:06,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:48:06,228 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:48:06,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:48:06,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1538779879, now seen corresponding path program 2 times [2022-01-18 11:48:06,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:48:06,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062730692] [2022-01-18 11:48:06,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:48:06,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:48:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:06,545 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:06,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:48:06,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062730692] [2022-01-18 11:48:06,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062730692] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:48:06,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814370927] [2022-01-18 11:48:06,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:48:06,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:48:06,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:48:06,547 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:48:06,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-01-18 11:48:06,711 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:48:06,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:48:06,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 72 conjunts are in the unsatisfiable core [2022-01-18 11:48:06,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:48:07,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:48:07,255 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:48:07,317 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:48:07,430 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:48:07,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:48:07,603 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1023 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1023) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) c_~s_2~0)) is different from false [2022-01-18 11:48:07,619 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1023 (Array Int Int))) (= (+ c_~t_5~0 c_~s_2~0) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1023) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) is different from false [2022-01-18 11:48:07,636 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:48:07,636 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 39 [2022-01-18 11:48:07,638 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-01-18 11:48:08,303 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-01-18 11:48:08,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814370927] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:48:08,303 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:48:08,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23, 26] total 54 [2022-01-18 11:48:08,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129297261] [2022-01-18 11:48:08,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:48:08,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-01-18 11:48:08,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:48:08,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-01-18 11:48:08,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=2439, Unknown=2, NotChecked=202, Total=2862 [2022-01-18 11:48:08,305 INFO L87 Difference]: Start difference. First operand 30533 states and 125520 transitions. Second operand has 54 states, 54 states have (on average 6.407407407407407) internal successors, (346), 54 states have internal predecessors, (346), 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) [2022-01-18 11:48:14,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:48:14,888 INFO L93 Difference]: Finished difference Result 176569 states and 744605 transitions. [2022-01-18 11:48:14,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-01-18 11:48:14,888 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 6.407407407407407) internal successors, (346), 54 states have internal predecessors, (346), 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 170 [2022-01-18 11:48:14,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:48:16,639 INFO L225 Difference]: With dead ends: 176569 [2022-01-18 11:48:16,639 INFO L226 Difference]: Without dead ends: 175408 [2022-01-18 11:48:16,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 303 SyntacticMatches, 12 SemanticMatches, 111 ConstructedPredicates, 2 IntricatePredicates, 3 DeprecatedPredicates, 3070 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1604, Invalid=10612, Unknown=2, NotChecked=438, Total=12656 [2022-01-18 11:48:16,640 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 4045 mSDsluCounter, 13340 mSDsCounter, 0 mSdLazyCounter, 5834 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4045 SdHoareTripleChecker+Valid, 11762 SdHoareTripleChecker+Invalid, 7799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 5834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1790 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:48:16,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4045 Valid, 11762 Invalid, 7799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 5834 Invalid, 0 Unknown, 1790 Unchecked, 2.1s Time] [2022-01-18 11:48:16,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175408 states. [2022-01-18 11:48:19,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175408 to 30533. [2022-01-18 11:48:19,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30533 states, 30532 states have (on average 4.111096554434692) internal successors, (125520), 30532 states have internal predecessors, (125520), 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) [2022-01-18 11:48:19,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30533 states to 30533 states and 125520 transitions. [2022-01-18 11:48:19,372 INFO L78 Accepts]: Start accepts. Automaton has 30533 states and 125520 transitions. Word has length 170 [2022-01-18 11:48:19,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:48:19,372 INFO L470 AbstractCegarLoop]: Abstraction has 30533 states and 125520 transitions. [2022-01-18 11:48:19,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 6.407407407407407) internal successors, (346), 54 states have internal predecessors, (346), 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) [2022-01-18 11:48:19,373 INFO L276 IsEmpty]: Start isEmpty. Operand 30533 states and 125520 transitions. [2022-01-18 11:48:19,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:48:19,444 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:48:19,444 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:48:19,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-01-18 11:48:19,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:48:19,645 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:48:19,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:48:19,645 INFO L85 PathProgramCache]: Analyzing trace with hash -666957653, now seen corresponding path program 3 times [2022-01-18 11:48:19,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:48:19,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994972039] [2022-01-18 11:48:19,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:48:19,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:48:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:19,939 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:19,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:48:19,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994972039] [2022-01-18 11:48:19,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994972039] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:48:19,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226221071] [2022-01-18 11:48:19,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 11:48:19,939 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:48:19,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:48:19,940 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:48:19,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-01-18 11:48:20,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 11:48:20,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:48:20,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-18 11:48:20,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:48:20,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:48:20,429 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:48:20,505 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:48:21,054 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:21,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:48:21,296 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1072 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1072) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~t_5~0 c_~s_2~0))) (forall ((v_ArrVal_1072 (Array Int Int))) (< (+ c_~t_5~0 c_~s_2~0) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1072) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) 1)))) is different from false [2022-01-18 11:48:21,339 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:48:21,339 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 52 treesize of output 43 [2022-01-18 11:48:21,343 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 11 [2022-01-18 11:48:21,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:48:21,385 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:48:21,385 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-18 11:48:21,742 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:21,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226221071] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:48:21,742 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:48:21,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 39 [2022-01-18 11:48:21,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170824469] [2022-01-18 11:48:21,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:48:21,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-01-18 11:48:21,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:48:21,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-01-18 11:48:21,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1294, Unknown=1, NotChecked=72, Total=1482 [2022-01-18 11:48:21,743 INFO L87 Difference]: Start difference. First operand 30533 states and 125520 transitions. Second operand has 39 states, 39 states have (on average 9.564102564102564) internal successors, (373), 39 states have internal predecessors, (373), 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) [2022-01-18 11:48:23,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:48:23,694 INFO L93 Difference]: Finished difference Result 51438 states and 216318 transitions. [2022-01-18 11:48:23,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:48:23,694 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 9.564102564102564) internal successors, (373), 39 states have internal predecessors, (373), 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 170 [2022-01-18 11:48:23,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:48:23,903 INFO L225 Difference]: With dead ends: 51438 [2022-01-18 11:48:23,903 INFO L226 Difference]: Without dead ends: 48117 [2022-01-18 11:48:23,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 317 SyntacticMatches, 5 SemanticMatches, 62 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=640, Invalid=3269, Unknown=1, NotChecked=122, Total=4032 [2022-01-18 11:48:23,904 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 1908 mSDsluCounter, 4333 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1908 SdHoareTripleChecker+Valid, 4065 SdHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 479 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:48:23,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1908 Valid, 4065 Invalid, 2163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1574 Invalid, 0 Unknown, 479 Unchecked, 0.6s Time] [2022-01-18 11:48:23,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48117 states. [2022-01-18 11:48:24,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48117 to 31253. [2022-01-18 11:48:24,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31253 states, 31252 states have (on average 4.119928324587226) internal successors, (128756), 31252 states have internal predecessors, (128756), 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) [2022-01-18 11:48:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31253 states to 31253 states and 128756 transitions. [2022-01-18 11:48:25,050 INFO L78 Accepts]: Start accepts. Automaton has 31253 states and 128756 transitions. Word has length 170 [2022-01-18 11:48:25,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:48:25,050 INFO L470 AbstractCegarLoop]: Abstraction has 31253 states and 128756 transitions. [2022-01-18 11:48:25,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 9.564102564102564) internal successors, (373), 39 states have internal predecessors, (373), 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) [2022-01-18 11:48:25,050 INFO L276 IsEmpty]: Start isEmpty. Operand 31253 states and 128756 transitions. [2022-01-18 11:48:25,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:48:25,117 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:48:25,117 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:48:25,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-01-18 11:48:25,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-01-18 11:48:25,318 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:48:25,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:48:25,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1328732579, now seen corresponding path program 4 times [2022-01-18 11:48:25,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:48:25,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808049250] [2022-01-18 11:48:25,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:48:25,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:48:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:25,589 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:25,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:48:25,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808049250] [2022-01-18 11:48:25,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808049250] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:48:25,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505928530] [2022-01-18 11:48:25,590 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 11:48:25,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:48:25,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:48:25,592 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:48:25,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-01-18 11:48:25,729 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 11:48:25,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:48:25,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 64 conjunts are in the unsatisfiable core [2022-01-18 11:48:25,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:48:26,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:48:26,125 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:48:26,201 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:48:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:48:26,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:48:26,744 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1121 (Array Int Int))) (<= (+ c_~t_5~0 c_~s_2~0) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1121) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) (forall ((v_ArrVal_1121 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1121) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~t_5~0 1 c_~s_2~0)))) is different from false [2022-01-18 11:48:26,785 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:48:26,785 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 41 [2022-01-18 11:48:26,788 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-01-18 11:48:26,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:48:26,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:48:26,809 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 3 [2022-01-18 11:48:27,152 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:27,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505928530] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:48:27,152 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:48:27,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 17] total 41 [2022-01-18 11:48:27,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989730466] [2022-01-18 11:48:27,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:48:27,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-01-18 11:48:27,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:48:27,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-01-18 11:48:27,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1441, Unknown=1, NotChecked=76, Total=1640 [2022-01-18 11:48:27,154 INFO L87 Difference]: Start difference. First operand 31253 states and 128756 transitions. Second operand has 41 states, 41 states have (on average 9.317073170731707) internal successors, (382), 41 states have internal predecessors, (382), 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) [2022-01-18 11:48:29,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:48:29,348 INFO L93 Difference]: Finished difference Result 51545 states and 216658 transitions. [2022-01-18 11:48:29,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:48:29,348 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 9.317073170731707) internal successors, (382), 41 states have internal predecessors, (382), 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 170 [2022-01-18 11:48:29,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:48:29,526 INFO L225 Difference]: With dead ends: 51545 [2022-01-18 11:48:29,526 INFO L226 Difference]: Without dead ends: 48524 [2022-01-18 11:48:29,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 314 SyntacticMatches, 5 SemanticMatches, 67 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=667, Invalid=3892, Unknown=1, NotChecked=132, Total=4692 [2022-01-18 11:48:29,528 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 1744 mSDsluCounter, 5361 mSDsCounter, 0 mSdLazyCounter, 2110 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 4932 SdHoareTripleChecker+Invalid, 2468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 2110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 255 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:48:29,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1744 Valid, 4932 Invalid, 2468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 2110 Invalid, 0 Unknown, 255 Unchecked, 0.8s Time] [2022-01-18 11:48:29,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48524 states. [2022-01-18 11:48:30,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48524 to 31253. [2022-01-18 11:48:30,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31253 states, 31252 states have (on average 4.119928324587226) internal successors, (128756), 31252 states have internal predecessors, (128756), 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) [2022-01-18 11:48:30,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31253 states to 31253 states and 128756 transitions. [2022-01-18 11:48:30,608 INFO L78 Accepts]: Start accepts. Automaton has 31253 states and 128756 transitions. Word has length 170 [2022-01-18 11:48:30,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:48:30,609 INFO L470 AbstractCegarLoop]: Abstraction has 31253 states and 128756 transitions. [2022-01-18 11:48:30,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 9.317073170731707) internal successors, (382), 41 states have internal predecessors, (382), 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) [2022-01-18 11:48:30,609 INFO L276 IsEmpty]: Start isEmpty. Operand 31253 states and 128756 transitions. [2022-01-18 11:48:30,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:48:30,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:48:30,684 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:48:30,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-01-18 11:48:30,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-01-18 11:48:30,885 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:48:30,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:48:30,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1608107789, now seen corresponding path program 5 times [2022-01-18 11:48:30,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:48:30,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136659673] [2022-01-18 11:48:30,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:48:30,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:48:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:31,491 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:48:31,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:48:31,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136659673] [2022-01-18 11:48:31,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136659673] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:48:31,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471548295] [2022-01-18 11:48:31,492 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 11:48:31,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:48:31,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:48:31,496 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:48:31,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-01-18 11:48:31,624 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 11:48:31,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:48:31,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 67 conjunts are in the unsatisfiable core [2022-01-18 11:48:31,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:48:31,656 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:48:31,743 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:48:31,743 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:48:32,244 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:48:32,383 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:48:32,517 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:32,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:48:32,764 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1171 (Array Int Int))) (<= (+ c_~t_5~0 c_~s_2~0) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1171) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) (forall ((v_ArrVal_1171 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1171) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~t_5~0 1 c_~s_2~0)))) is different from false [2022-01-18 11:48:32,804 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:48:32,804 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 41 [2022-01-18 11:48:32,806 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-01-18 11:48:32,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:48:32,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:48:32,839 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 3 [2022-01-18 11:48:33,107 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:33,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471548295] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:48:33,107 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:48:33,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 17, 17] total 45 [2022-01-18 11:48:33,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165333615] [2022-01-18 11:48:33,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:48:33,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-01-18 11:48:33,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:48:33,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-01-18 11:48:33,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1748, Unknown=1, NotChecked=84, Total=1980 [2022-01-18 11:48:33,108 INFO L87 Difference]: Start difference. First operand 31253 states and 128756 transitions. Second operand has 45 states, 45 states have (on average 7.977777777777778) internal successors, (359), 45 states have internal predecessors, (359), 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) [2022-01-18 11:48:37,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:48:37,061 INFO L93 Difference]: Finished difference Result 55171 states and 232350 transitions. [2022-01-18 11:48:37,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:48:37,062 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 7.977777777777778) internal successors, (359), 45 states have internal predecessors, (359), 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 170 [2022-01-18 11:48:37,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:48:37,264 INFO L225 Difference]: With dead ends: 55171 [2022-01-18 11:48:37,264 INFO L226 Difference]: Without dead ends: 52150 [2022-01-18 11:48:37,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 319 SyntacticMatches, 6 SemanticMatches, 83 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1451 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=943, Invalid=6032, Unknown=1, NotChecked=164, Total=7140 [2022-01-18 11:48:37,265 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 1818 mSDsluCounter, 6102 mSDsCounter, 0 mSdLazyCounter, 2910 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1818 SdHoareTripleChecker+Valid, 5535 SdHoareTripleChecker+Invalid, 3522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 508 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:48:37,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1818 Valid, 5535 Invalid, 3522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2910 Invalid, 0 Unknown, 508 Unchecked, 1.2s Time] [2022-01-18 11:48:37,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52150 states. [2022-01-18 11:48:38,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52150 to 31253. [2022-01-18 11:48:38,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31253 states, 31252 states have (on average 4.119928324587226) internal successors, (128756), 31252 states have internal predecessors, (128756), 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) [2022-01-18 11:48:38,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31253 states to 31253 states and 128756 transitions. [2022-01-18 11:48:38,448 INFO L78 Accepts]: Start accepts. Automaton has 31253 states and 128756 transitions. Word has length 170 [2022-01-18 11:48:38,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:48:38,448 INFO L470 AbstractCegarLoop]: Abstraction has 31253 states and 128756 transitions. [2022-01-18 11:48:38,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 7.977777777777778) internal successors, (359), 45 states have internal predecessors, (359), 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) [2022-01-18 11:48:38,449 INFO L276 IsEmpty]: Start isEmpty. Operand 31253 states and 128756 transitions. [2022-01-18 11:48:38,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:48:38,516 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:48:38,516 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:48:38,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-01-18 11:48:38,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-01-18 11:48:38,717 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:48:38,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:48:38,717 INFO L85 PathProgramCache]: Analyzing trace with hash -706640369, now seen corresponding path program 6 times [2022-01-18 11:48:38,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:48:38,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435967720] [2022-01-18 11:48:38,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:48:38,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:48:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:38,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:48:38,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435967720] [2022-01-18 11:48:38,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435967720] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:48:38,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057309048] [2022-01-18 11:48:38,968 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 11:48:38,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:48:38,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:48:38,970 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:48:38,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-01-18 11:48:39,123 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 11:48:39,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:48:39,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 49 conjunts are in the unsatisfiable core [2022-01-18 11:48:39,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:48:39,373 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-01-18 11:48:39,497 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:39,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:48:39,657 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:48:39,658 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 27 [2022-01-18 11:48:39,670 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:48:39,671 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 26 [2022-01-18 11:48:39,859 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:39,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057309048] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:48:39,859 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:48:39,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 10] total 23 [2022-01-18 11:48:39,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617726652] [2022-01-18 11:48:39,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:48:39,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:48:39,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:48:39,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:48:39,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:48:39,860 INFO L87 Difference]: Start difference. First operand 31253 states and 128756 transitions. Second operand has 23 states, 23 states have (on average 9.91304347826087) internal successors, (228), 23 states have internal predecessors, (228), 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) [2022-01-18 11:48:40,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:48:40,730 INFO L93 Difference]: Finished difference Result 50554 states and 211595 transitions. [2022-01-18 11:48:40,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:48:40,730 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.91304347826087) internal successors, (228), 23 states have internal predecessors, (228), 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 170 [2022-01-18 11:48:40,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:48:40,912 INFO L225 Difference]: With dead ends: 50554 [2022-01-18 11:48:40,912 INFO L226 Difference]: Without dead ends: 50373 [2022-01-18 11:48:40,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 331 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=215, Invalid=1191, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:48:40,913 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 638 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 3310 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:48:40,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [638 Valid, 3310 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1016 Invalid, 0 Unknown, 71 Unchecked, 0.4s Time] [2022-01-18 11:48:41,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50373 states. [2022-01-18 11:48:42,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50373 to 35541. [2022-01-18 11:48:42,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35541 states, 35540 states have (on average 4.1227912211592574) internal successors, (146524), 35540 states have internal predecessors, (146524), 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) [2022-01-18 11:48:42,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35541 states to 35541 states and 146524 transitions. [2022-01-18 11:48:42,226 INFO L78 Accepts]: Start accepts. Automaton has 35541 states and 146524 transitions. Word has length 170 [2022-01-18 11:48:42,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:48:42,226 INFO L470 AbstractCegarLoop]: Abstraction has 35541 states and 146524 transitions. [2022-01-18 11:48:42,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.91304347826087) internal successors, (228), 23 states have internal predecessors, (228), 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) [2022-01-18 11:48:42,226 INFO L276 IsEmpty]: Start isEmpty. Operand 35541 states and 146524 transitions. [2022-01-18 11:48:42,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:48:42,306 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:48:42,306 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:48:42,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-01-18 11:48:42,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:48:42,507 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:48:42,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:48:42,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1115464594, now seen corresponding path program 1 times [2022-01-18 11:48:42,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:48:42,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006523388] [2022-01-18 11:48:42,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:48:42,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:48:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:43,093 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:43,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:48:43,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006523388] [2022-01-18 11:48:43,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006523388] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:48:43,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360718374] [2022-01-18 11:48:43,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:48:43,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:48:43,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:48:43,096 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:48:43,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-01-18 11:48:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:43,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 57 conjunts are in the unsatisfiable core [2022-01-18 11:48:43,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:48:43,600 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-01-18 11:48:43,725 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:48:43,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:48:43,891 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:48:43,891 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 27 [2022-01-18 11:48:43,902 INFO L353 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2022-01-18 11:48:43,902 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 12 [2022-01-18 11:48:44,080 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:44,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360718374] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:48:44,080 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:48:44,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 25 [2022-01-18 11:48:44,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012087688] [2022-01-18 11:48:44,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:48:44,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 11:48:44,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:48:44,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 11:48:44,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:48:44,082 INFO L87 Difference]: Start difference. First operand 35541 states and 146524 transitions. Second operand has 25 states, 25 states have (on average 9.36) internal successors, (234), 25 states have internal predecessors, (234), 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) [2022-01-18 11:48:45,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:48:45,217 INFO L93 Difference]: Finished difference Result 55025 states and 230404 transitions. [2022-01-18 11:48:45,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:48:45,217 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.36) internal successors, (234), 25 states have internal predecessors, (234), 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 170 [2022-01-18 11:48:45,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:48:45,420 INFO L225 Difference]: With dead ends: 55025 [2022-01-18 11:48:45,421 INFO L226 Difference]: Without dead ends: 49904 [2022-01-18 11:48:45,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 328 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=255, Invalid=1637, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:48:45,421 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 651 mSDsluCounter, 4622 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 4351 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:48:45,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [651 Valid, 4351 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:48:45,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49904 states. [2022-01-18 11:48:46,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49904 to 32733. [2022-01-18 11:48:46,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32733 states, 32732 states have (on average 4.124587559574728) internal successors, (135006), 32732 states have internal predecessors, (135006), 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) [2022-01-18 11:48:46,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32733 states to 32733 states and 135006 transitions. [2022-01-18 11:48:46,566 INFO L78 Accepts]: Start accepts. Automaton has 32733 states and 135006 transitions. Word has length 170 [2022-01-18 11:48:46,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:48:46,566 INFO L470 AbstractCegarLoop]: Abstraction has 32733 states and 135006 transitions. [2022-01-18 11:48:46,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.36) internal successors, (234), 25 states have internal predecessors, (234), 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) [2022-01-18 11:48:46,567 INFO L276 IsEmpty]: Start isEmpty. Operand 32733 states and 135006 transitions. [2022-01-18 11:48:46,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:48:46,637 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:48:46,637 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:48:46,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-01-18 11:48:46,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-01-18 11:48:46,839 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:48:46,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:48:46,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1845040171, now seen corresponding path program 7 times [2022-01-18 11:48:46,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:48:46,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21506787] [2022-01-18 11:48:46,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:48:46,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:48:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:47,046 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:47,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:48:47,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21506787] [2022-01-18 11:48:47,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21506787] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:48:47,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100499331] [2022-01-18 11:48:47,047 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 11:48:47,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:48:47,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:48:47,052 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:48:47,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-01-18 11:48:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:47,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 57 conjunts are in the unsatisfiable core [2022-01-18 11:48:47,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:48:47,537 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:48:47,698 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:48:47,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:48:47,874 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:48:47,874 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 27 [2022-01-18 11:48:47,885 INFO L353 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2022-01-18 11:48:47,887 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 12 [2022-01-18 11:48:48,076 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:48,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100499331] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:48:48,077 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:48:48,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 24 [2022-01-18 11:48:48,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184746745] [2022-01-18 11:48:48,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:48:48,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:48:48,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:48:48,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:48:48,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:48:48,078 INFO L87 Difference]: Start difference. First operand 32733 states and 135006 transitions. Second operand has 24 states, 24 states have (on average 9.708333333333334) internal successors, (233), 24 states have internal predecessors, (233), 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) [2022-01-18 11:48:49,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:48:49,229 INFO L93 Difference]: Finished difference Result 50734 states and 213030 transitions. [2022-01-18 11:48:49,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:48:49,229 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.708333333333334) internal successors, (233), 24 states have internal predecessors, (233), 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 170 [2022-01-18 11:48:49,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:48:49,397 INFO L225 Difference]: With dead ends: 50734 [2022-01-18 11:48:49,397 INFO L226 Difference]: Without dead ends: 47413 [2022-01-18 11:48:49,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 330 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=247, Invalid=1559, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 11:48:49,398 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 671 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:48:49,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [671 Valid, 3225 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 11:48:49,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47413 states. [2022-01-18 11:48:50,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47413 to 32841. [2022-01-18 11:48:50,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32841 states, 32840 states have (on average 4.125669914738125) internal successors, (135487), 32840 states have internal predecessors, (135487), 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) [2022-01-18 11:48:50,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32841 states to 32841 states and 135487 transitions. [2022-01-18 11:48:50,546 INFO L78 Accepts]: Start accepts. Automaton has 32841 states and 135487 transitions. Word has length 170 [2022-01-18 11:48:50,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:48:50,546 INFO L470 AbstractCegarLoop]: Abstraction has 32841 states and 135487 transitions. [2022-01-18 11:48:50,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.708333333333334) internal successors, (233), 24 states have internal predecessors, (233), 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) [2022-01-18 11:48:50,546 INFO L276 IsEmpty]: Start isEmpty. Operand 32841 states and 135487 transitions. [2022-01-18 11:48:50,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:48:50,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:48:50,626 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:48:50,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-01-18 11:48:50,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:48:50,826 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:48:50,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:48:50,827 INFO L85 PathProgramCache]: Analyzing trace with hash 965858141, now seen corresponding path program 8 times [2022-01-18 11:48:50,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:48:50,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500349820] [2022-01-18 11:48:50,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:48:50,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:48:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:51,038 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:51,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:48:51,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500349820] [2022-01-18 11:48:51,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500349820] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:48:51,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504414643] [2022-01-18 11:48:51,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:48:51,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:48:51,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:48:51,044 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:48:51,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-01-18 11:48:51,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:48:51,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:48:51,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 49 conjunts are in the unsatisfiable core [2022-01-18 11:48:51,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:48:51,501 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:48:51,672 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:51,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:48:51,852 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:48:51,852 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 26 [2022-01-18 11:48:51,866 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:48:51,866 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 27 [2022-01-18 11:48:52,057 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:52,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504414643] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:48:52,057 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:48:52,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 10] total 22 [2022-01-18 11:48:52,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745636825] [2022-01-18 11:48:52,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:48:52,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 11:48:52,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:48:52,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 11:48:52,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:48:52,058 INFO L87 Difference]: Start difference. First operand 32841 states and 135487 transitions. Second operand has 22 states, 22 states have (on average 10.454545454545455) internal successors, (230), 22 states have internal predecessors, (230), 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) [2022-01-18 11:48:53,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:48:53,273 INFO L93 Difference]: Finished difference Result 52229 states and 219303 transitions. [2022-01-18 11:48:53,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:48:53,274 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.454545454545455) internal successors, (230), 22 states have internal predecessors, (230), 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 170 [2022-01-18 11:48:53,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:48:53,482 INFO L225 Difference]: With dead ends: 52229 [2022-01-18 11:48:53,483 INFO L226 Difference]: Without dead ends: 49208 [2022-01-18 11:48:53,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 331 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=197, Invalid=1063, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:48:53,483 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 686 mSDsluCounter, 3276 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 3139 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 90 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:48:53,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [686 Valid, 3139 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 933 Invalid, 0 Unknown, 90 Unchecked, 0.3s Time] [2022-01-18 11:48:53,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49208 states. [2022-01-18 11:48:54,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49208 to 33645. [2022-01-18 11:48:54,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33645 states, 33644 states have (on average 4.131435025561764) internal successors, (138998), 33644 states have internal predecessors, (138998), 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) [2022-01-18 11:48:54,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33645 states to 33645 states and 138998 transitions. [2022-01-18 11:48:54,913 INFO L78 Accepts]: Start accepts. Automaton has 33645 states and 138998 transitions. Word has length 170 [2022-01-18 11:48:54,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:48:54,914 INFO L470 AbstractCegarLoop]: Abstraction has 33645 states and 138998 transitions. [2022-01-18 11:48:54,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.454545454545455) internal successors, (230), 22 states have internal predecessors, (230), 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) [2022-01-18 11:48:54,914 INFO L276 IsEmpty]: Start isEmpty. Operand 33645 states and 138998 transitions. [2022-01-18 11:48:55,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:48:55,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:48:55,015 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:48:55,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-01-18 11:48:55,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-01-18 11:48:55,235 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:48:55,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:48:55,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1992831499, now seen corresponding path program 9 times [2022-01-18 11:48:55,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:48:55,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908202960] [2022-01-18 11:48:55,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:48:55,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:48:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:48:56,138 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:48:56,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:48:56,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908202960] [2022-01-18 11:48:56,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908202960] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:48:56,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303578814] [2022-01-18 11:48:56,139 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 11:48:56,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:48:56,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:48:56,140 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:48:56,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-01-18 11:48:56,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 11:48:56,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:48:56,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 49 conjunts are in the unsatisfiable core [2022-01-18 11:48:56,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:48:56,701 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:48:56,844 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:56,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:48:57,033 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:48:57,034 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 27 [2022-01-18 11:48:57,052 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:48:57,052 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 26 [2022-01-18 11:48:57,260 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:48:57,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303578814] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:48:57,260 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:48:57,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 11, 10] total 34 [2022-01-18 11:48:57,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260103801] [2022-01-18 11:48:57,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:48:57,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 11:48:57,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:48:57,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 11:48:57,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1023, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:48:57,262 INFO L87 Difference]: Start difference. First operand 33645 states and 138998 transitions. Second operand has 34 states, 34 states have (on average 8.352941176470589) internal successors, (284), 34 states have internal predecessors, (284), 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) [2022-01-18 11:49:00,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:49:00,033 INFO L93 Difference]: Finished difference Result 51831 states and 217890 transitions. [2022-01-18 11:49:00,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 11:49:00,034 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 8.352941176470589) internal successors, (284), 34 states have internal predecessors, (284), 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 170 [2022-01-18 11:49:00,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:49:00,207 INFO L225 Difference]: With dead ends: 51831 [2022-01-18 11:49:00,208 INFO L226 Difference]: Without dead ends: 48510 [2022-01-18 11:49:00,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 336 SyntacticMatches, 4 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 766 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=468, Invalid=3314, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:49:00,208 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 1171 mSDsluCounter, 4791 mSDsCounter, 0 mSdLazyCounter, 2213 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 4376 SdHoareTripleChecker+Invalid, 2320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:49:00,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1171 Valid, 4376 Invalid, 2320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2213 Invalid, 0 Unknown, 56 Unchecked, 0.9s Time] [2022-01-18 11:49:00,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48510 states. [2022-01-18 11:49:00,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48510 to 33969. [2022-01-18 11:49:00,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33969 states, 33968 states have (on average 4.134508949599623) internal successors, (140441), 33968 states have internal predecessors, (140441), 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) [2022-01-18 11:49:01,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33969 states to 33969 states and 140441 transitions. [2022-01-18 11:49:01,437 INFO L78 Accepts]: Start accepts. Automaton has 33969 states and 140441 transitions. Word has length 170 [2022-01-18 11:49:01,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:49:01,437 INFO L470 AbstractCegarLoop]: Abstraction has 33969 states and 140441 transitions. [2022-01-18 11:49:01,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.352941176470589) internal successors, (284), 34 states have internal predecessors, (284), 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) [2022-01-18 11:49:01,438 INFO L276 IsEmpty]: Start isEmpty. Operand 33969 states and 140441 transitions. [2022-01-18 11:49:01,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:49:01,516 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:49:01,516 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:49:01,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-01-18 11:49:01,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:49:01,717 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:49:01,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:49:01,717 INFO L85 PathProgramCache]: Analyzing trace with hash 508762515, now seen corresponding path program 10 times [2022-01-18 11:49:01,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:49:01,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404850420] [2022-01-18 11:49:01,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:49:01,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:49:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:49:01,906 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:49:01,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:49:01,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404850420] [2022-01-18 11:49:01,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404850420] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:49:01,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362616694] [2022-01-18 11:49:01,907 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 11:49:01,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:49:01,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:49:01,908 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:49:01,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-01-18 11:49:02,050 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 11:49:02,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:49:02,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 57 conjunts are in the unsatisfiable core [2022-01-18 11:49:02,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:49:02,304 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:49:02,442 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:49:02,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:49:02,608 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:49:02,608 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 27 [2022-01-18 11:49:02,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:49:02,618 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:49:02,619 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 12 [2022-01-18 11:49:02,801 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:49:02,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362616694] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:49:02,801 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:49:02,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 24 [2022-01-18 11:49:02,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609617490] [2022-01-18 11:49:02,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:49:02,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:49:02,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:49:02,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:49:02,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:49:02,802 INFO L87 Difference]: Start difference. First operand 33969 states and 140441 transitions. Second operand has 24 states, 24 states have (on average 9.833333333333334) internal successors, (236), 24 states have internal predecessors, (236), 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) [2022-01-18 11:49:03,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:49:03,823 INFO L93 Difference]: Finished difference Result 51645 states and 216913 transitions. [2022-01-18 11:49:03,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:49:03,823 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.833333333333334) internal successors, (236), 24 states have internal predecessors, (236), 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 170 [2022-01-18 11:49:03,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:49:04,349 INFO L225 Difference]: With dead ends: 51645 [2022-01-18 11:49:04,350 INFO L226 Difference]: Without dead ends: 48624 [2022-01-18 11:49:04,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 330 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=240, Invalid=1566, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 11:49:04,367 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 668 mSDsluCounter, 4223 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 3966 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:49:04,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [668 Valid, 3966 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 11:49:04,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48624 states. [2022-01-18 11:49:05,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48624 to 33969. [2022-01-18 11:49:05,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33969 states, 33968 states have (on average 4.134508949599623) internal successors, (140441), 33968 states have internal predecessors, (140441), 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) [2022-01-18 11:49:05,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33969 states to 33969 states and 140441 transitions. [2022-01-18 11:49:05,255 INFO L78 Accepts]: Start accepts. Automaton has 33969 states and 140441 transitions. Word has length 170 [2022-01-18 11:49:05,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:49:05,255 INFO L470 AbstractCegarLoop]: Abstraction has 33969 states and 140441 transitions. [2022-01-18 11:49:05,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.833333333333334) internal successors, (236), 24 states have internal predecessors, (236), 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) [2022-01-18 11:49:05,255 INFO L276 IsEmpty]: Start isEmpty. Operand 33969 states and 140441 transitions. [2022-01-18 11:49:05,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:49:05,330 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:49:05,330 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:49:05,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2022-01-18 11:49:05,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:49:05,531 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:49:05,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:49:05,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1386684303, now seen corresponding path program 11 times [2022-01-18 11:49:05,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:49:05,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262783004] [2022-01-18 11:49:05,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:49:05,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:49:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:49:06,133 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:49:06,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:49:06,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262783004] [2022-01-18 11:49:06,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262783004] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:49:06,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897460634] [2022-01-18 11:49:06,134 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 11:49:06,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:49:06,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:49:06,135 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:49:06,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-01-18 11:49:06,300 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 11:49:06,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:49:06,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 51 conjunts are in the unsatisfiable core [2022-01-18 11:49:06,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:49:06,576 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:49:06,696 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:49:06,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:49:06,856 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:49:06,856 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 26 [2022-01-18 11:49:06,871 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:49:06,871 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 27 [2022-01-18 11:49:07,064 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:49:07,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897460634] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:49:07,064 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:49:07,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 23 [2022-01-18 11:49:07,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895661593] [2022-01-18 11:49:07,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:49:07,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 11:49:07,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:49:07,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 11:49:07,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:49:07,066 INFO L87 Difference]: Start difference. First operand 33969 states and 140441 transitions. Second operand has 23 states, 23 states have (on average 10.130434782608695) internal successors, (233), 23 states have internal predecessors, (233), 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) [2022-01-18 11:49:08,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:49:08,079 INFO L93 Difference]: Finished difference Result 55158 states and 232119 transitions. [2022-01-18 11:49:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:49:08,079 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.130434782608695) internal successors, (233), 23 states have internal predecessors, (233), 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 170 [2022-01-18 11:49:08,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:49:08,263 INFO L225 Difference]: With dead ends: 55158 [2022-01-18 11:49:08,263 INFO L226 Difference]: Without dead ends: 52137 [2022-01-18 11:49:08,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 330 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=215, Invalid=1267, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:49:08,264 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 697 mSDsluCounter, 3714 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 3540 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:49:08,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [697 Valid, 3540 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1244 Invalid, 0 Unknown, 23 Unchecked, 0.5s Time] [2022-01-18 11:49:08,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52137 states. [2022-01-18 11:49:09,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52137 to 33645. [2022-01-18 11:49:09,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33645 states, 33644 states have (on average 4.131435025561764) internal successors, (138998), 33644 states have internal predecessors, (138998), 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) [2022-01-18 11:49:09,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33645 states to 33645 states and 138998 transitions. [2022-01-18 11:49:09,482 INFO L78 Accepts]: Start accepts. Automaton has 33645 states and 138998 transitions. Word has length 170 [2022-01-18 11:49:09,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:49:09,482 INFO L470 AbstractCegarLoop]: Abstraction has 33645 states and 138998 transitions. [2022-01-18 11:49:09,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.130434782608695) internal successors, (233), 23 states have internal predecessors, (233), 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) [2022-01-18 11:49:09,482 INFO L276 IsEmpty]: Start isEmpty. Operand 33645 states and 138998 transitions. [2022-01-18 11:49:09,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:49:09,558 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:49:09,558 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:49:09,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2022-01-18 11:49:09,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:49:09,761 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:49:09,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:49:09,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1124442827, now seen corresponding path program 12 times [2022-01-18 11:49:09,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:49:09,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771377929] [2022-01-18 11:49:09,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:49:09,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:49:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:49:10,064 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:49:10,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:49:10,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771377929] [2022-01-18 11:49:10,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771377929] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:49:10,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807326825] [2022-01-18 11:49:10,065 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 11:49:10,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:49:10,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:49:10,066 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:49:10,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-01-18 11:49:10,317 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 11:49:10,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:49:10,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 64 conjunts are in the unsatisfiable core [2022-01-18 11:49:10,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:49:10,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:49:10,747 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-01-18 11:49:10,787 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-01-18 11:49:10,927 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:49:10,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:49:11,107 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1556 (Array Int Int))) (<= c_~s_6~0 (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1556) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0))) (forall ((v_ArrVal_1556 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1556) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 1)))) is different from false [2022-01-18 11:49:11,325 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1556 (Array Int Int))) (<= (+ c_~s_6~0 c_~t_8~0) (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1556) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0))) (forall ((v_ArrVal_1556 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1556) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 c_~t_8~0 1)))) is different from false [2022-01-18 11:49:11,335 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:49:11,335 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 51 [2022-01-18 11:49:11,342 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2022-01-18 11:49:11,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:49:11,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:49:11,371 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 3 [2022-01-18 11:49:11,763 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:49:11,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807326825] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:49:11,763 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:49:11,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 17] total 42 [2022-01-18 11:49:11,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879434136] [2022-01-18 11:49:11,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:49:11,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-01-18 11:49:11,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:49:11,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-01-18 11:49:11,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1416, Unknown=2, NotChecked=154, Total=1722 [2022-01-18 11:49:11,764 INFO L87 Difference]: Start difference. First operand 33645 states and 138998 transitions. Second operand has 42 states, 42 states have (on average 6.642857142857143) internal successors, (279), 42 states have internal predecessors, (279), 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) [2022-01-18 11:49:13,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:49:13,509 INFO L93 Difference]: Finished difference Result 59611 states and 251708 transitions. [2022-01-18 11:49:13,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:49:13,509 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 6.642857142857143) internal successors, (279), 42 states have internal predecessors, (279), 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 170 [2022-01-18 11:49:13,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:49:13,716 INFO L225 Difference]: With dead ends: 59611 [2022-01-18 11:49:13,716 INFO L226 Difference]: Without dead ends: 56290 [2022-01-18 11:49:13,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 312 SyntacticMatches, 6 SemanticMatches, 62 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=531, Invalid=3257, Unknown=2, NotChecked=242, Total=4032 [2022-01-18 11:49:13,717 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 1159 mSDsluCounter, 5121 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 4773 SdHoareTripleChecker+Invalid, 2645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 788 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:49:13,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1159 Valid, 4773 Invalid, 2645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1820 Invalid, 0 Unknown, 788 Unchecked, 0.7s Time] [2022-01-18 11:49:13,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56290 states. [2022-01-18 11:49:14,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56290 to 35089. [2022-01-18 11:49:14,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35089 states, 35088 states have (on average 4.141102371181031) internal successors, (145303), 35088 states have internal predecessors, (145303), 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) [2022-01-18 11:49:14,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35089 states to 35089 states and 145303 transitions. [2022-01-18 11:49:14,964 INFO L78 Accepts]: Start accepts. Automaton has 35089 states and 145303 transitions. Word has length 170 [2022-01-18 11:49:14,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:49:14,964 INFO L470 AbstractCegarLoop]: Abstraction has 35089 states and 145303 transitions. [2022-01-18 11:49:14,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 6.642857142857143) internal successors, (279), 42 states have internal predecessors, (279), 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) [2022-01-18 11:49:14,964 INFO L276 IsEmpty]: Start isEmpty. Operand 35089 states and 145303 transitions. [2022-01-18 11:49:15,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:49:15,040 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:49:15,040 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:49:15,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-01-18 11:49:15,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-01-18 11:49:15,241 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:49:15,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:49:15,242 INFO L85 PathProgramCache]: Analyzing trace with hash 129350175, now seen corresponding path program 13 times [2022-01-18 11:49:15,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:49:15,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347484141] [2022-01-18 11:49:15,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:49:15,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:49:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:49:15,543 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:49:15,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:49:15,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347484141] [2022-01-18 11:49:15,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347484141] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:49:15,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344087884] [2022-01-18 11:49:15,544 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 11:49:15,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:49:15,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:49:15,548 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:49:15,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-01-18 11:49:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:49:15,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 82 conjunts are in the unsatisfiable core [2022-01-18 11:49:15,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:49:15,826 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:49:16,039 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 11:49:16,039 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 11:49:16,047 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:49:16,047 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:49:16,495 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-01-18 11:49:16,557 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-01-18 11:49:16,699 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:49:16,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:49:16,889 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1607 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1607) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 1))) (forall ((v_ArrVal_1607 (Array Int Int))) (<= c_~s_6~0 (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1607) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0)))) is different from false [2022-01-18 11:49:16,896 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1607 (Array Int Int))) (<= (+ c_~s_6~0 c_~t_8~0) (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1607) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0))) (forall ((v_ArrVal_1607 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1607) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 c_~t_8~0 1)))) is different from false [2022-01-18 11:49:16,903 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:49:16,903 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 58 treesize of output 49 [2022-01-18 11:49:16,906 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 11 [2022-01-18 11:49:16,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:49:16,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:49:16,932 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 5 [2022-01-18 11:49:17,385 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:49:17,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344087884] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:49:17,386 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:49:17,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 24, 21] total 49 [2022-01-18 11:49:17,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078817924] [2022-01-18 11:49:17,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:49:17,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-01-18 11:49:17,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:49:17,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-01-18 11:49:17,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1984, Unknown=2, NotChecked=182, Total=2352 [2022-01-18 11:49:17,387 INFO L87 Difference]: Start difference. First operand 35089 states and 145303 transitions. Second operand has 49 states, 49 states have (on average 5.816326530612245) internal successors, (285), 49 states have internal predecessors, (285), 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) [2022-01-18 11:49:19,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:49:19,560 INFO L93 Difference]: Finished difference Result 60391 states and 254119 transitions. [2022-01-18 11:49:19,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:49:19,560 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 5.816326530612245) internal successors, (285), 49 states have internal predecessors, (285), 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 170 [2022-01-18 11:49:19,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:49:20,106 INFO L225 Difference]: With dead ends: 60391 [2022-01-18 11:49:20,106 INFO L226 Difference]: Without dead ends: 58600 [2022-01-18 11:49:20,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 309 SyntacticMatches, 5 SemanticMatches, 78 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 1289 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=767, Invalid=5241, Unknown=6, NotChecked=306, Total=6320 [2022-01-18 11:49:20,107 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 1395 mSDsluCounter, 6807 mSDsCounter, 0 mSdLazyCounter, 2285 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 6342 SdHoareTripleChecker+Invalid, 3270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 930 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:49:20,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1395 Valid, 6342 Invalid, 3270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2285 Invalid, 0 Unknown, 930 Unchecked, 0.8s Time] [2022-01-18 11:49:20,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58600 states. [2022-01-18 11:49:20,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58600 to 35623. [2022-01-18 11:49:20,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35623 states, 35622 states have (on average 4.143113806074897) internal successors, (147586), 35622 states have internal predecessors, (147586), 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) [2022-01-18 11:49:21,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35623 states to 35623 states and 147586 transitions. [2022-01-18 11:49:21,119 INFO L78 Accepts]: Start accepts. Automaton has 35623 states and 147586 transitions. Word has length 170 [2022-01-18 11:49:21,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:49:21,120 INFO L470 AbstractCegarLoop]: Abstraction has 35623 states and 147586 transitions. [2022-01-18 11:49:21,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 5.816326530612245) internal successors, (285), 49 states have internal predecessors, (285), 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) [2022-01-18 11:49:21,120 INFO L276 IsEmpty]: Start isEmpty. Operand 35623 states and 147586 transitions. [2022-01-18 11:49:21,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:49:21,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:49:21,456 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:49:21,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-01-18 11:49:21,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-01-18 11:49:21,664 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:49:21,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:49:21,664 INFO L85 PathProgramCache]: Analyzing trace with hash 59492663, now seen corresponding path program 14 times [2022-01-18 11:49:21,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:49:21,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306993294] [2022-01-18 11:49:21,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:49:21,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:49:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:49:22,003 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:49:22,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:49:22,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306993294] [2022-01-18 11:49:22,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306993294] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:49:22,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742531327] [2022-01-18 11:49:22,004 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:49:22,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:49:22,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:49:22,008 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:49:22,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-01-18 11:49:22,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:49:22,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:49:22,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 76 conjunts are in the unsatisfiable core [2022-01-18 11:49:22,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:49:22,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:49:22,764 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:49:22,860 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-01-18 11:49:22,988 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:49:22,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:49:23,193 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1656 (Array Int Int))) (<= (+ c_~s_6~0 c_~t_8~0) (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1656) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0))) (forall ((v_ArrVal_1656 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1656) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 c_~t_8~0 1)))) is different from false [2022-01-18 11:49:23,201 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:49:23,201 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 58 treesize of output 49 [2022-01-18 11:49:23,204 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 11 [2022-01-18 11:49:23,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:49:23,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:49:23,224 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 5 [2022-01-18 11:49:23,786 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:49:23,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742531327] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:49:23,786 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:49:23,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 23, 24] total 48 [2022-01-18 11:49:23,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720904422] [2022-01-18 11:49:23,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:49:23,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-01-18 11:49:23,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:49:23,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-01-18 11:49:23,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1940, Unknown=1, NotChecked=90, Total=2256 [2022-01-18 11:49:23,788 INFO L87 Difference]: Start difference. First operand 35623 states and 147586 transitions. Second operand has 48 states, 48 states have (on average 5.729166666666667) internal successors, (275), 48 states have internal predecessors, (275), 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) [2022-01-18 11:49:26,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:49:26,768 INFO L93 Difference]: Finished difference Result 118985 states and 502171 transitions. [2022-01-18 11:49:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 11:49:26,769 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 5.729166666666667) internal successors, (275), 48 states have internal predecessors, (275), 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 170 [2022-01-18 11:49:26,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:49:27,244 INFO L225 Difference]: With dead ends: 118985 [2022-01-18 11:49:27,244 INFO L226 Difference]: Without dead ends: 112343 [2022-01-18 11:49:27,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 305 SyntacticMatches, 6 SemanticMatches, 85 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1682 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1170, Invalid=6143, Unknown=1, NotChecked=168, Total=7482 [2022-01-18 11:49:27,245 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 2773 mSDsluCounter, 5576 mSDsCounter, 0 mSdLazyCounter, 2236 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2773 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 2672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 332 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:49:27,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2773 Valid, 5122 Invalid, 2672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2236 Invalid, 0 Unknown, 332 Unchecked, 0.9s Time] [2022-01-18 11:49:27,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112343 states. [2022-01-18 11:49:29,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112343 to 34201. [2022-01-18 11:49:29,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34201 states, 34200 states have (on average 4.133187134502924) internal successors, (141355), 34200 states have internal predecessors, (141355), 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) [2022-01-18 11:49:29,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34201 states to 34201 states and 141355 transitions. [2022-01-18 11:49:29,633 INFO L78 Accepts]: Start accepts. Automaton has 34201 states and 141355 transitions. Word has length 170 [2022-01-18 11:49:29,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:49:29,634 INFO L470 AbstractCegarLoop]: Abstraction has 34201 states and 141355 transitions. [2022-01-18 11:49:29,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 5.729166666666667) internal successors, (275), 48 states have internal predecessors, (275), 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) [2022-01-18 11:49:29,634 INFO L276 IsEmpty]: Start isEmpty. Operand 34201 states and 141355 transitions. [2022-01-18 11:49:29,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:49:29,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:49:29,744 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:49:29,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2022-01-18 11:49:29,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:49:29,945 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:49:29,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:49:29,945 INFO L85 PathProgramCache]: Analyzing trace with hash 49466847, now seen corresponding path program 15 times [2022-01-18 11:49:29,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:49:29,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274346663] [2022-01-18 11:49:29,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:49:29,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:49:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:49:30,247 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:49:30,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:49:30,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274346663] [2022-01-18 11:49:30,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274346663] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:49:30,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695739760] [2022-01-18 11:49:30,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 11:49:30,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:49:30,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:49:30,248 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:49:30,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-01-18 11:49:30,619 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-18 11:49:30,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:49:30,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 86 conjunts are in the unsatisfiable core [2022-01-18 11:49:30,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:49:30,730 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:49:31,041 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-18 11:49:31,042 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-01-18 11:49:31,076 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:49:31,076 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:49:31,342 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 11:49:31,433 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:49:31,434 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 23 [2022-01-18 11:49:31,736 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:49:31,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:49:32,168 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:49:32,168 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 115 treesize of output 81 [2022-01-18 11:49:32,173 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 57 [2022-01-18 11:49:32,176 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 51 [2022-01-18 11:49:33,388 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:49:33,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695739760] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:49:33,389 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:49:33,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 26, 24] total 57 [2022-01-18 11:49:33,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051828991] [2022-01-18 11:49:33,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:49:33,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-01-18 11:49:33,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:49:33,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-01-18 11:49:33,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=2927, Unknown=10, NotChecked=0, Total=3192 [2022-01-18 11:49:33,391 INFO L87 Difference]: Start difference. First operand 34201 states and 141355 transitions. Second operand has 57 states, 57 states have (on average 5.491228070175438) internal successors, (313), 57 states have internal predecessors, (313), 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) [2022-01-18 11:49:41,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:49:41,825 INFO L93 Difference]: Finished difference Result 144938 states and 606442 transitions. [2022-01-18 11:49:41,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 11:49:41,826 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 5.491228070175438) internal successors, (313), 57 states have internal predecessors, (313), 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 170 [2022-01-18 11:49:41,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:49:42,931 INFO L225 Difference]: With dead ends: 144938 [2022-01-18 11:49:42,931 INFO L226 Difference]: Without dead ends: 138218 [2022-01-18 11:49:42,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 297 SyntacticMatches, 11 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 4682 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=2503, Invalid=15577, Unknown=10, NotChecked=0, Total=18090 [2022-01-18 11:49:42,932 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 4451 mSDsluCounter, 9704 mSDsCounter, 0 mSdLazyCounter, 3858 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4451 SdHoareTripleChecker+Valid, 8808 SdHoareTripleChecker+Invalid, 4970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 3858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 909 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:49:42,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4451 Valid, 8808 Invalid, 4970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 3858 Invalid, 0 Unknown, 909 Unchecked, 1.7s Time] [2022-01-18 11:49:43,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138218 states. [2022-01-18 11:49:44,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138218 to 35109. [2022-01-18 11:49:44,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35109 states, 35108 states have (on average 4.120542326535262) internal successors, (144664), 35108 states have internal predecessors, (144664), 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) [2022-01-18 11:49:44,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35109 states to 35109 states and 144664 transitions. [2022-01-18 11:49:44,995 INFO L78 Accepts]: Start accepts. Automaton has 35109 states and 144664 transitions. Word has length 170 [2022-01-18 11:49:44,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:49:44,996 INFO L470 AbstractCegarLoop]: Abstraction has 35109 states and 144664 transitions. [2022-01-18 11:49:44,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 5.491228070175438) internal successors, (313), 57 states have internal predecessors, (313), 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) [2022-01-18 11:49:44,996 INFO L276 IsEmpty]: Start isEmpty. Operand 35109 states and 144664 transitions. [2022-01-18 11:49:45,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:49:45,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:49:45,079 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:49:45,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-01-18 11:49:45,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-01-18 11:49:45,280 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:49:45,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:49:45,281 INFO L85 PathProgramCache]: Analyzing trace with hash 998566901, now seen corresponding path program 16 times [2022-01-18 11:49:45,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:49:45,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888397077] [2022-01-18 11:49:45,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:49:45,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:49:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:49:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:49:45,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:49:45,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888397077] [2022-01-18 11:49:45,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888397077] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:49:45,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333768880] [2022-01-18 11:49:45,576 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 11:49:45,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:49:45,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:49:45,580 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:49:45,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-01-18 11:49:45,763 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 11:49:45,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:49:45,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 74 conjunts are in the unsatisfiable core [2022-01-18 11:49:45,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:49:45,859 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:49:46,013 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 11:49:46,013 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 11:49:46,020 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:49:46,020 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:49:46,208 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:49:46,254 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:49:46,407 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:49:46,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:49:46,619 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1758 (Array Int Int))) (< (+ c_~s_6~0 c_~t_8~0) (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1758) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) 1 c_~s_2~0))) (forall ((v_ArrVal_1758 (Array Int Int))) (<= (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1758) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 c_~t_8~0)))) is different from false [2022-01-18 11:49:46,629 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:49:46,630 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 51 [2022-01-18 11:49:46,633 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2022-01-18 11:49:46,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:49:46,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:49:46,667 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 3 [2022-01-18 11:49:47,073 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:49:47,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333768880] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:49:47,074 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:49:47,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 17] total 39 [2022-01-18 11:49:47,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696286381] [2022-01-18 11:49:47,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:49:47,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-01-18 11:49:47,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:49:47,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-01-18 11:49:47,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1285, Unknown=1, NotChecked=72, Total=1482 [2022-01-18 11:49:47,075 INFO L87 Difference]: Start difference. First operand 35109 states and 144664 transitions. Second operand has 39 states, 39 states have (on average 6.769230769230769) internal successors, (264), 39 states have internal predecessors, (264), 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) [2022-01-18 11:49:49,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:49:49,162 INFO L93 Difference]: Finished difference Result 57262 states and 239863 transitions. [2022-01-18 11:49:49,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:49:49,162 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 6.769230769230769) internal successors, (264), 39 states have internal predecessors, (264), 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 170 [2022-01-18 11:49:49,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:49:49,369 INFO L225 Difference]: With dead ends: 57262 [2022-01-18 11:49:49,369 INFO L226 Difference]: Without dead ends: 56491 [2022-01-18 11:49:49,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 315 SyntacticMatches, 5 SemanticMatches, 64 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 846 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=523, Invalid=3638, Unknown=3, NotChecked=126, Total=4290 [2022-01-18 11:49:49,369 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 1341 mSDsluCounter, 5086 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 4751 SdHoareTripleChecker+Invalid, 2075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 341 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:49:49,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1341 Valid, 4751 Invalid, 2075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1686 Invalid, 0 Unknown, 341 Unchecked, 0.7s Time] [2022-01-18 11:49:49,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56491 states. [2022-01-18 11:49:50,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56491 to 35929. [2022-01-18 11:49:50,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35929 states, 35928 states have (on average 4.1286461812513915) internal successors, (148334), 35928 states have internal predecessors, (148334), 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) [2022-01-18 11:49:50,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35929 states to 35929 states and 148334 transitions. [2022-01-18 11:49:50,755 INFO L78 Accepts]: Start accepts. Automaton has 35929 states and 148334 transitions. Word has length 170 [2022-01-18 11:49:50,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:49:50,756 INFO L470 AbstractCegarLoop]: Abstraction has 35929 states and 148334 transitions. [2022-01-18 11:49:50,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 6.769230769230769) internal successors, (264), 39 states have internal predecessors, (264), 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) [2022-01-18 11:49:50,756 INFO L276 IsEmpty]: Start isEmpty. Operand 35929 states and 148334 transitions. [2022-01-18 11:49:50,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:49:50,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:49:50,844 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:49:50,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-01-18 11:49:51,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-01-18 11:49:51,045 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:49:51,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:49:51,045 INFO L85 PathProgramCache]: Analyzing trace with hash -2735811, now seen corresponding path program 17 times [2022-01-18 11:49:51,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:49:51,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348637587] [2022-01-18 11:49:51,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:49:51,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:49:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:49:51,304 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:49:51,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:49:51,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348637587] [2022-01-18 11:49:51,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348637587] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:49:51,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431980488] [2022-01-18 11:49:51,304 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 11:49:51,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:49:51,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:49:51,305 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:49:51,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-01-18 11:49:51,456 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 11:49:51,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:49:51,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 74 conjunts are in the unsatisfiable core [2022-01-18 11:49:51,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:49:51,530 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:49:51,673 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-18 11:49:51,673 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-01-18 11:49:51,697 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:49:51,697 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:49:51,884 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:49:51,952 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:49:52,099 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:49:52,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:49:52,307 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1809 (Array Int Int))) (<= (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1809) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 c_~t_8~0))) (forall ((v_ArrVal_1809 (Array Int Int))) (< (+ c_~s_6~0 c_~t_8~0) (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1809) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) 1 c_~s_2~0)))) is different from false [2022-01-18 11:49:52,315 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:49:52,315 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 58 treesize of output 49 [2022-01-18 11:49:52,319 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 11 [2022-01-18 11:49:52,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:49:52,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:49:52,339 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 5 [2022-01-18 11:49:52,675 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:49:52,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431980488] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:49:52,675 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:49:52,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 17] total 39 [2022-01-18 11:49:52,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383174279] [2022-01-18 11:49:52,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:49:52,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-01-18 11:49:52,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:49:52,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-01-18 11:49:52,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1285, Unknown=1, NotChecked=72, Total=1482 [2022-01-18 11:49:52,677 INFO L87 Difference]: Start difference. First operand 35929 states and 148334 transitions. Second operand has 39 states, 39 states have (on average 6.871794871794871) internal successors, (268), 39 states have internal predecessors, (268), 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) [2022-01-18 11:49:54,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:49:54,852 INFO L93 Difference]: Finished difference Result 56143 states and 235769 transitions. [2022-01-18 11:49:54,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:49:54,852 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 6.871794871794871) internal successors, (268), 39 states have internal predecessors, (268), 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 170 [2022-01-18 11:49:54,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:49:55,048 INFO L225 Difference]: With dead ends: 56143 [2022-01-18 11:49:55,048 INFO L226 Difference]: Without dead ends: 53122 [2022-01-18 11:49:55,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 313 SyntacticMatches, 6 SemanticMatches, 65 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 885 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=544, Invalid=3749, Unknown=1, NotChecked=128, Total=4422 [2022-01-18 11:49:55,049 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 1342 mSDsluCounter, 5357 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 4928 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 366 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:49:55,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1342 Valid, 4928 Invalid, 2425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2004 Invalid, 0 Unknown, 366 Unchecked, 0.8s Time] [2022-01-18 11:49:55,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53122 states. [2022-01-18 11:49:56,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53122 to 34125. [2022-01-18 11:49:56,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34125 states, 34124 states have (on average 4.1166920642363145) internal successors, (140478), 34124 states have internal predecessors, (140478), 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) [2022-01-18 11:49:56,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34125 states to 34125 states and 140478 transitions. [2022-01-18 11:49:56,320 INFO L78 Accepts]: Start accepts. Automaton has 34125 states and 140478 transitions. Word has length 170 [2022-01-18 11:49:56,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:49:56,320 INFO L470 AbstractCegarLoop]: Abstraction has 34125 states and 140478 transitions. [2022-01-18 11:49:56,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 6.871794871794871) internal successors, (268), 39 states have internal predecessors, (268), 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) [2022-01-18 11:49:56,320 INFO L276 IsEmpty]: Start isEmpty. Operand 34125 states and 140478 transitions. [2022-01-18 11:49:56,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:49:56,400 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:49:56,400 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:49:56,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-01-18 11:49:56,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-01-18 11:49:56,601 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:49:56,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:49:56,602 INFO L85 PathProgramCache]: Analyzing trace with hash -203177157, now seen corresponding path program 13 times [2022-01-18 11:49:56,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:49:56,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532061968] [2022-01-18 11:49:56,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:49:56,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:49:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:49:57,008 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:49:57,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:49:57,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532061968] [2022-01-18 11:49:57,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532061968] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:49:57,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908946859] [2022-01-18 11:49:57,009 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 11:49:57,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:49:57,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:49:57,010 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:49:57,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-01-18 11:49:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:49:57,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 80 conjunts are in the unsatisfiable core [2022-01-18 11:49:57,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:49:57,235 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:49:57,323 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 11:49:57,323 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 11:49:57,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:49:57,677 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-18 11:49:57,677 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 17 treesize of output 26 [2022-01-18 11:49:57,718 INFO L353 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2022-01-18 11:49:57,719 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 28 [2022-01-18 11:49:57,969 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 20 treesize of output 22 [2022-01-18 11:49:58,050 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-01-18 11:49:58,121 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-01-18 11:49:58,229 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:49:58,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:49:58,409 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1862 (Array Int Int))) (= (+ (* (- 1) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1862) c_~X_0~0.base) (+ c_~X_0~0.offset 4))) c_~s_2~0) 0)) is different from false [2022-01-18 11:49:58,445 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1862 (Array Int Int)) (v_ArrVal_1861 (Array Int Int))) (= (+ (* (- 1) (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1861) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1862) c_~X_0~0.base) (+ c_~X_0~0.offset 4))) c_~s_2~0) 0)) is different from false [2022-01-18 11:49:58,450 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1862 (Array Int Int)) (v_ArrVal_1861 (Array Int Int))) (= (+ (* (- 1) (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1861) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1862) c_~X_0~0.base) (+ c_~X_0~0.offset 4))) c_~t_4~0 c_~s_2~0) 0)) is different from false [2022-01-18 11:49:58,456 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:49:58,457 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 116 treesize of output 89 [2022-01-18 11:49:58,459 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 74 treesize of output 66 [2022-01-18 11:49:58,461 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 30 [2022-01-18 11:50:01,589 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 1 not checked. [2022-01-18 11:50:01,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908946859] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:50:01,589 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:50:01,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22, 20] total 48 [2022-01-18 11:50:01,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985694592] [2022-01-18 11:50:01,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:50:01,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-01-18 11:50:01,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:50:01,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-01-18 11:50:01,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1831, Unknown=3, NotChecked=264, Total=2256 [2022-01-18 11:50:01,593 INFO L87 Difference]: Start difference. First operand 34125 states and 140478 transitions. Second operand has 48 states, 48 states have (on average 7.041666666666667) internal successors, (338), 48 states have internal predecessors, (338), 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) [2022-01-18 11:50:07,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:50:07,567 INFO L93 Difference]: Finished difference Result 200250 states and 863798 transitions. [2022-01-18 11:50:07,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:50:07,568 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 7.041666666666667) internal successors, (338), 48 states have internal predecessors, (338), 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 170 [2022-01-18 11:50:07,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:50:08,725 INFO L225 Difference]: With dead ends: 200250 [2022-01-18 11:50:08,725 INFO L226 Difference]: Without dead ends: 196229 [2022-01-18 11:50:08,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 310 SyntacticMatches, 23 SemanticMatches, 83 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2133 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=702, Invalid=5949, Unknown=3, NotChecked=486, Total=7140 [2022-01-18 11:50:08,725 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 1934 mSDsluCounter, 11853 mSDsCounter, 0 mSdLazyCounter, 3915 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1934 SdHoareTripleChecker+Valid, 10579 SdHoareTripleChecker+Invalid, 7433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3415 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:50:08,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1934 Valid, 10579 Invalid, 7433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3915 Invalid, 0 Unknown, 3415 Unchecked, 1.6s Time] [2022-01-18 11:50:09,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196229 states. [2022-01-18 11:50:11,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196229 to 35455. [2022-01-18 11:50:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35455 states, 35454 states have (on average 4.111891464996897) internal successors, (145783), 35454 states have internal predecessors, (145783), 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) [2022-01-18 11:50:12,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35455 states to 35455 states and 145783 transitions. [2022-01-18 11:50:12,150 INFO L78 Accepts]: Start accepts. Automaton has 35455 states and 145783 transitions. Word has length 170 [2022-01-18 11:50:12,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:50:12,150 INFO L470 AbstractCegarLoop]: Abstraction has 35455 states and 145783 transitions. [2022-01-18 11:50:12,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 7.041666666666667) internal successors, (338), 48 states have internal predecessors, (338), 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) [2022-01-18 11:50:12,150 INFO L276 IsEmpty]: Start isEmpty. Operand 35455 states and 145783 transitions. [2022-01-18 11:50:12,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:50:12,231 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:50:12,231 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:50:12,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2022-01-18 11:50:12,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:50:12,432 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:50:12,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:50:12,432 INFO L85 PathProgramCache]: Analyzing trace with hash -858003803, now seen corresponding path program 14 times [2022-01-18 11:50:12,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:50:12,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138194389] [2022-01-18 11:50:12,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:50:12,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:50:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:50:12,802 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:50:12,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:50:12,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138194389] [2022-01-18 11:50:12,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138194389] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:50:12,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584341781] [2022-01-18 11:50:12,803 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:50:12,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:50:12,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:50:12,808 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:50:12,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-01-18 11:50:13,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:50:13,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:50:13,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 66 conjunts are in the unsatisfiable core [2022-01-18 11:50:13,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:50:13,059 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:50:13,158 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:50:13,158 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:50:13,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:50:13,492 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 20 treesize of output 22 [2022-01-18 11:50:13,561 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-01-18 11:50:13,629 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-01-18 11:50:13,761 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:50:13,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:50:13,945 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1913 (Array Int Int))) (= (+ (* (- 1) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1913) c_~X_0~0.base) (+ c_~X_0~0.offset 4))) c_~s_2~0) 0)) is different from false [2022-01-18 11:50:13,976 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1912 (Array Int Int)) (v_ArrVal_1913 (Array Int Int))) (= (+ (* (- 1) (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1912) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1913) c_~X_0~0.base) (+ c_~X_0~0.offset 4))) c_~s_2~0) 0)) is different from false [2022-01-18 11:50:13,981 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1912 (Array Int Int)) (v_ArrVal_1913 (Array Int Int))) (= (+ c_~t_4~0 (* (- 1) (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1912) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1913) c_~X_0~0.base) (+ c_~X_0~0.offset 4))) c_~s_2~0) 0)) is different from false [2022-01-18 11:50:13,991 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:50:13,991 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 116 treesize of output 89 [2022-01-18 11:50:13,996 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2022-01-18 11:50:13,999 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 70 treesize of output 62 [2022-01-18 11:50:14,491 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 1 not checked. [2022-01-18 11:50:14,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584341781] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:50:14,492 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:50:14,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 19] total 43 [2022-01-18 11:50:14,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120387746] [2022-01-18 11:50:14,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:50:14,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-01-18 11:50:14,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:50:14,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-01-18 11:50:14,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1441, Unknown=3, NotChecked=234, Total=1806 [2022-01-18 11:50:14,496 INFO L87 Difference]: Start difference. First operand 35455 states and 145783 transitions. Second operand has 43 states, 43 states have (on average 8.790697674418604) internal successors, (378), 43 states have internal predecessors, (378), 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) [2022-01-18 11:50:18,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:50:18,247 INFO L93 Difference]: Finished difference Result 87236 states and 364396 transitions. [2022-01-18 11:50:18,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:50:18,247 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 8.790697674418604) internal successors, (378), 43 states have internal predecessors, (378), 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 170 [2022-01-18 11:50:18,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:50:19,051 INFO L225 Difference]: With dead ends: 87236 [2022-01-18 11:50:19,051 INFO L226 Difference]: Without dead ends: 84155 [2022-01-18 11:50:19,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 312 SyntacticMatches, 9 SemanticMatches, 77 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1108 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=961, Invalid=4748, Unknown=3, NotChecked=450, Total=6162 [2022-01-18 11:50:19,052 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 3222 mSDsluCounter, 6043 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3222 SdHoareTripleChecker+Valid, 5621 SdHoareTripleChecker+Invalid, 4754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1823 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:50:19,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3222 Valid, 5621 Invalid, 4754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 2668 Invalid, 0 Unknown, 1823 Unchecked, 1.5s Time] [2022-01-18 11:50:19,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84155 states. [2022-01-18 11:50:20,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84155 to 34735. [2022-01-18 11:50:20,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34735 states, 34734 states have (on average 4.1121955432717225) internal successors, (142833), 34734 states have internal predecessors, (142833), 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) [2022-01-18 11:50:20,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34735 states to 34735 states and 142833 transitions. [2022-01-18 11:50:20,607 INFO L78 Accepts]: Start accepts. Automaton has 34735 states and 142833 transitions. Word has length 170 [2022-01-18 11:50:20,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:50:20,607 INFO L470 AbstractCegarLoop]: Abstraction has 34735 states and 142833 transitions. [2022-01-18 11:50:20,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 8.790697674418604) internal successors, (378), 43 states have internal predecessors, (378), 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) [2022-01-18 11:50:20,607 INFO L276 IsEmpty]: Start isEmpty. Operand 34735 states and 142833 transitions. [2022-01-18 11:50:20,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:50:20,680 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:50:20,681 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:50:20,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2022-01-18 11:50:20,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:50:20,882 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:50:20,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:50:20,882 INFO L85 PathProgramCache]: Analyzing trace with hash -110917851, now seen corresponding path program 15 times [2022-01-18 11:50:20,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:50:20,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960629192] [2022-01-18 11:50:20,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:50:20,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:50:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:50:21,233 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:50:21,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:50:21,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960629192] [2022-01-18 11:50:21,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960629192] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:50:21,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009587802] [2022-01-18 11:50:21,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 11:50:21,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:50:21,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:50:21,252 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:50:21,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-01-18 11:50:21,423 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 11:50:21,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:50:21,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 58 conjunts are in the unsatisfiable core [2022-01-18 11:50:21,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:50:21,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:50:21,861 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:50:21,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:50:21,941 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:50:22,047 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-01-18 11:50:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:50:22,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:50:22,410 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1963 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1963) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~t_4~0 1 c_~s_2~0))) (forall ((v_ArrVal_1963 (Array Int Int))) (<= (+ c_~t_4~0 c_~s_2~0) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1963) c_~X_0~0.base) (+ c_~X_0~0.offset 4))))) is different from false [2022-01-18 11:50:22,479 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1963 (Array Int Int)) (v_ArrVal_1962 (Array Int Int))) (<= (+ c_~t_4~0 c_~s_2~0) (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1962) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1963) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) (forall ((v_ArrVal_1963 (Array Int Int)) (v_ArrVal_1962 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1962) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1963) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~t_4~0 1 c_~s_2~0)))) is different from false [2022-01-18 11:50:22,489 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:50:22,489 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 104 treesize of output 77 [2022-01-18 11:50:22,492 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 62 treesize of output 54 [2022-01-18 11:50:22,496 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-01-18 11:50:22,578 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:50:22,578 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:50:22,584 INFO L353 Elim1Store]: treesize reduction 11, result has 26.7 percent of original size [2022-01-18 11:50:22,584 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 21 treesize of output 11 [2022-01-18 11:50:23,058 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:50:23,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009587802] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:50:23,058 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:50:23,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 19] total 45 [2022-01-18 11:50:23,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643414832] [2022-01-18 11:50:23,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:50:23,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-01-18 11:50:23,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:50:23,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-01-18 11:50:23,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1669, Unknown=2, NotChecked=166, Total=1980 [2022-01-18 11:50:23,060 INFO L87 Difference]: Start difference. First operand 34735 states and 142833 transitions. Second operand has 45 states, 45 states have (on average 8.4) internal successors, (378), 45 states have internal predecessors, (378), 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) [2022-01-18 11:50:26,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:50:26,322 INFO L93 Difference]: Finished difference Result 65211 states and 273059 transitions. [2022-01-18 11:50:26,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 11:50:26,322 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 8.4) internal successors, (378), 45 states have internal predecessors, (378), 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 170 [2022-01-18 11:50:26,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:50:26,562 INFO L225 Difference]: With dead ends: 65211 [2022-01-18 11:50:26,562 INFO L226 Difference]: Without dead ends: 62130 [2022-01-18 11:50:26,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 312 SyntacticMatches, 7 SemanticMatches, 74 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1008 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=828, Invalid=4580, Unknown=2, NotChecked=290, Total=5700 [2022-01-18 11:50:26,563 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 2183 mSDsluCounter, 5672 mSDsCounter, 0 mSdLazyCounter, 2327 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2183 SdHoareTripleChecker+Valid, 5261 SdHoareTripleChecker+Invalid, 3201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 2327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 739 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:50:26,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2183 Valid, 5261 Invalid, 3201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 2327 Invalid, 0 Unknown, 739 Unchecked, 1.0s Time] [2022-01-18 11:50:26,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62130 states. [2022-01-18 11:50:27,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62130 to 35095. [2022-01-18 11:50:27,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35095 states, 35094 states have (on average 4.114634980338519) internal successors, (144399), 35094 states have internal predecessors, (144399), 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) [2022-01-18 11:50:27,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35095 states to 35095 states and 144399 transitions. [2022-01-18 11:50:27,858 INFO L78 Accepts]: Start accepts. Automaton has 35095 states and 144399 transitions. Word has length 170 [2022-01-18 11:50:27,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:50:27,859 INFO L470 AbstractCegarLoop]: Abstraction has 35095 states and 144399 transitions. [2022-01-18 11:50:27,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 8.4) internal successors, (378), 45 states have internal predecessors, (378), 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) [2022-01-18 11:50:27,859 INFO L276 IsEmpty]: Start isEmpty. Operand 35095 states and 144399 transitions. [2022-01-18 11:50:27,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:50:27,938 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:50:27,938 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:50:27,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2022-01-18 11:50:28,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-01-18 11:50:28,152 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:50:28,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:50:28,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1913599967, now seen corresponding path program 16 times [2022-01-18 11:50:28,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:50:28,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131191119] [2022-01-18 11:50:28,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:50:28,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:50:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:50:28,491 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:50:28,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:50:28,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131191119] [2022-01-18 11:50:28,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131191119] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:50:28,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572631046] [2022-01-18 11:50:28,491 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 11:50:28,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:50:28,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:50:28,492 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:50:28,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-01-18 11:50:28,658 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 11:50:28,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:50:28,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 66 conjunts are in the unsatisfiable core [2022-01-18 11:50:28,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:50:29,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:50:29,138 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:50:29,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:50:29,220 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:50:29,301 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:50:29,428 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:50:29,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:50:29,661 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2013 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_2013) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~t_4~0 1 c_~s_2~0))) (forall ((v_ArrVal_2013 (Array Int Int))) (<= (+ c_~t_4~0 c_~s_2~0) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_2013) c_~X_0~0.base) (+ c_~X_0~0.offset 4))))) is different from false [2022-01-18 11:50:30,069 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2013 (Array Int Int)) (v_ArrVal_2012 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2012) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_2013) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~t_4~0 1 c_~s_2~0))) (forall ((v_ArrVal_2013 (Array Int Int)) (v_ArrVal_2012 (Array Int Int))) (<= (+ c_~t_4~0 c_~s_2~0) (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2012) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_2013) c_~X_0~0.base) (+ c_~X_0~0.offset 4))))) is different from false [2022-01-18 11:50:30,101 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:50:30,101 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 108 treesize of output 81 [2022-01-18 11:50:30,104 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 66 treesize of output 58 [2022-01-18 11:50:30,108 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2022-01-18 11:50:30,224 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:50:30,224 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:50:30,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:50:30,227 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 20 treesize of output 3 [2022-01-18 11:50:30,746 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:50:30,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572631046] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:50:30,746 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:50:30,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21, 19] total 46 [2022-01-18 11:50:30,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70142468] [2022-01-18 11:50:30,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:50:30,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-01-18 11:50:30,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:50:30,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-01-18 11:50:30,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1747, Unknown=2, NotChecked=170, Total=2070 [2022-01-18 11:50:30,748 INFO L87 Difference]: Start difference. First operand 35095 states and 144399 transitions. Second operand has 46 states, 46 states have (on average 8.326086956521738) internal successors, (383), 46 states have internal predecessors, (383), 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) [2022-01-18 11:50:33,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:50:33,706 INFO L93 Difference]: Finished difference Result 59041 states and 247013 transitions. [2022-01-18 11:50:33,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:50:33,706 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 8.326086956521738) internal successors, (383), 46 states have internal predecessors, (383), 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 170 [2022-01-18 11:50:33,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:50:34,221 INFO L225 Difference]: With dead ends: 59041 [2022-01-18 11:50:34,222 INFO L226 Difference]: Without dead ends: 55960 [2022-01-18 11:50:34,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 310 SyntacticMatches, 7 SemanticMatches, 76 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1047 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=854, Invalid=4852, Unknown=2, NotChecked=298, Total=6006 [2022-01-18 11:50:34,222 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 1941 mSDsluCounter, 5864 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1941 SdHoareTripleChecker+Valid, 5371 SdHoareTripleChecker+Invalid, 3362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 842 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:50:34,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1941 Valid, 5371 Invalid, 3362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 2397 Invalid, 0 Unknown, 842 Unchecked, 0.9s Time] [2022-01-18 11:50:34,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55960 states. [2022-01-18 11:50:34,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55960 to 35195. [2022-01-18 11:50:35,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35195 states, 35194 states have (on average 4.115644712166847) internal successors, (144846), 35194 states have internal predecessors, (144846), 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) [2022-01-18 11:50:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35195 states to 35195 states and 144846 transitions. [2022-01-18 11:50:35,142 INFO L78 Accepts]: Start accepts. Automaton has 35195 states and 144846 transitions. Word has length 170 [2022-01-18 11:50:35,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:50:35,142 INFO L470 AbstractCegarLoop]: Abstraction has 35195 states and 144846 transitions. [2022-01-18 11:50:35,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 8.326086956521738) internal successors, (383), 46 states have internal predecessors, (383), 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) [2022-01-18 11:50:35,143 INFO L276 IsEmpty]: Start isEmpty. Operand 35195 states and 144846 transitions. [2022-01-18 11:50:35,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:50:35,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:50:35,219 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:50:35,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2022-01-18 11:50:35,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-01-18 11:50:35,420 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:50:35,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:50:35,421 INFO L85 PathProgramCache]: Analyzing trace with hash -98734997, now seen corresponding path program 17 times [2022-01-18 11:50:35,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:50:35,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817588163] [2022-01-18 11:50:35,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:50:35,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:50:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:50:36,126 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:50:36,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:50:36,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817588163] [2022-01-18 11:50:36,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817588163] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:50:36,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971367850] [2022-01-18 11:50:36,126 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 11:50:36,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:50:36,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:50:36,128 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:50:36,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2022-01-18 11:50:36,323 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 11:50:36,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:50:36,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 70 conjunts are in the unsatisfiable core [2022-01-18 11:50:36,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:50:36,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:50:36,913 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:50:37,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:50:37,019 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:50:37,114 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-18 11:50:37,246 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:50:37,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:50:37,486 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2063 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_2063) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~t_4~0 c_~s_2~0))) (forall ((v_ArrVal_2063 (Array Int Int))) (< (+ c_~t_4~0 c_~s_2~0) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_2063) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) 1)))) is different from false [2022-01-18 11:50:37,548 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2063 (Array Int Int)) (v_ArrVal_2062 (Array Int Int))) (< (+ c_~t_4~0 c_~s_2~0) (+ (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2062) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_2063) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) 1))) (forall ((v_ArrVal_2063 (Array Int Int)) (v_ArrVal_2062 (Array Int Int))) (<= (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2062) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_2063) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~t_4~0 c_~s_2~0)))) is different from false [2022-01-18 11:50:37,557 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:50:37,557 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 234 treesize of output 165 [2022-01-18 11:50:37,561 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 75 treesize of output 67 [2022-01-18 11:50:37,564 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 142 treesize of output 126 [2022-01-18 11:50:37,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:50:37,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:50:37,633 INFO L353 Elim1Store]: treesize reduction 11, result has 26.7 percent of original size [2022-01-18 11:50:37,633 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 20 treesize of output 10 [2022-01-18 11:50:38,122 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:50:38,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971367850] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:50:38,122 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:50:38,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21, 19] total 45 [2022-01-18 11:50:38,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009215762] [2022-01-18 11:50:38,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:50:38,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-01-18 11:50:38,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:50:38,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-01-18 11:50:38,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1652, Unknown=2, NotChecked=166, Total=1980 [2022-01-18 11:50:38,124 INFO L87 Difference]: Start difference. First operand 35195 states and 144846 transitions. Second operand has 45 states, 45 states have (on average 7.444444444444445) internal successors, (335), 45 states have internal predecessors, (335), 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) [2022-01-18 11:50:40,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:50:40,551 INFO L93 Difference]: Finished difference Result 58767 states and 246180 transitions. [2022-01-18 11:50:40,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:50:40,552 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 7.444444444444445) internal successors, (335), 45 states have internal predecessors, (335), 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 170 [2022-01-18 11:50:40,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:50:40,771 INFO L225 Difference]: With dead ends: 58767 [2022-01-18 11:50:40,771 INFO L226 Difference]: Without dead ends: 55446 [2022-01-18 11:50:40,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 311 SyntacticMatches, 8 SemanticMatches, 66 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=671, Invalid=3625, Unknown=2, NotChecked=258, Total=4556 [2022-01-18 11:50:40,772 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 1432 mSDsluCounter, 5562 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 3065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 728 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:50:40,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1432 Valid, 5157 Invalid, 3065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2255 Invalid, 0 Unknown, 728 Unchecked, 0.9s Time] [2022-01-18 11:50:40,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55446 states. [2022-01-18 11:50:41,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55446 to 34545. [2022-01-18 11:50:41,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34545 states, 34544 states have (on average 4.112233672996758) internal successors, (142053), 34544 states have internal predecessors, (142053), 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) [2022-01-18 11:50:42,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34545 states to 34545 states and 142053 transitions. [2022-01-18 11:50:42,108 INFO L78 Accepts]: Start accepts. Automaton has 34545 states and 142053 transitions. Word has length 170 [2022-01-18 11:50:42,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:50:42,109 INFO L470 AbstractCegarLoop]: Abstraction has 34545 states and 142053 transitions. [2022-01-18 11:50:42,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 7.444444444444445) internal successors, (335), 45 states have internal predecessors, (335), 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) [2022-01-18 11:50:42,109 INFO L276 IsEmpty]: Start isEmpty. Operand 34545 states and 142053 transitions. [2022-01-18 11:50:42,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:50:42,187 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:50:42,187 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:50:42,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2022-01-18 11:50:42,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-01-18 11:50:42,388 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:50:42,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:50:42,388 INFO L85 PathProgramCache]: Analyzing trace with hash 561630503, now seen corresponding path program 18 times [2022-01-18 11:50:42,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:50:42,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577150812] [2022-01-18 11:50:42,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:50:42,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:50:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:50:42,717 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:50:42,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:50:42,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577150812] [2022-01-18 11:50:42,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577150812] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:50:42,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201235465] [2022-01-18 11:50:42,718 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 11:50:42,718 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:50:42,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:50:42,719 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:50:42,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2022-01-18 11:50:42,897 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 11:50:42,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:50:42,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 80 conjunts are in the unsatisfiable core [2022-01-18 11:50:42,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:50:42,974 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:50:43,254 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 11:50:43,254 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 11:50:43,265 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:50:43,265 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:50:43,496 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-01-18 11:50:43,538 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-01-18 11:50:43,684 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:50:43,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:50:43,866 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2114 (Array Int Int))) (<= c_~s_2~0 (+ c_~s_6~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2114) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0)))))) (forall ((v_ArrVal_2114 (Array Int Int))) (< (+ c_~s_6~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2114) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0)))) (+ 1 c_~s_2~0)))) is different from false [2022-01-18 11:50:43,887 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2114 (Array Int Int))) (< (+ c_~s_6~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2114) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0)))) (+ c_~t_4~0 1 c_~s_2~0))) (forall ((v_ArrVal_2114 (Array Int Int))) (<= (+ c_~t_4~0 c_~s_2~0) (+ c_~s_6~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2114) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0))))))) is different from false [2022-01-18 11:50:43,897 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:50:43,898 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 58 treesize of output 49 [2022-01-18 11:50:43,901 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 11 [2022-01-18 11:50:43,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:50:43,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:50:43,924 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 5 [2022-01-18 11:50:44,483 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:50:44,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201235465] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:50:44,483 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:50:44,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 22, 23] total 48 [2022-01-18 11:50:44,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559272180] [2022-01-18 11:50:44,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:50:44,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-01-18 11:50:44,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:50:44,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-01-18 11:50:44,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1884, Unknown=2, NotChecked=178, Total=2256 [2022-01-18 11:50:44,484 INFO L87 Difference]: Start difference. First operand 34545 states and 142053 transitions. Second operand has 48 states, 48 states have (on average 5.520833333333333) internal successors, (265), 48 states have internal predecessors, (265), 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) [2022-01-18 11:50:48,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:50:48,488 INFO L93 Difference]: Finished difference Result 124288 states and 523836 transitions. [2022-01-18 11:50:48,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 11:50:48,488 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 5.520833333333333) internal successors, (265), 48 states have internal predecessors, (265), 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 170 [2022-01-18 11:50:48,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:50:49,513 INFO L225 Difference]: With dead ends: 124288 [2022-01-18 11:50:49,513 INFO L226 Difference]: Without dead ends: 118247 [2022-01-18 11:50:49,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 310 SyntacticMatches, 6 SemanticMatches, 98 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 2239 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1424, Invalid=8084, Unknown=6, NotChecked=386, Total=9900 [2022-01-18 11:50:49,514 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 2952 mSDsluCounter, 6902 mSDsCounter, 0 mSdLazyCounter, 2700 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2952 SdHoareTripleChecker+Valid, 6272 SdHoareTripleChecker+Invalid, 3592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 2700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 747 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:50:49,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2952 Valid, 6272 Invalid, 3592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 2700 Invalid, 0 Unknown, 747 Unchecked, 1.2s Time] [2022-01-18 11:50:49,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118247 states. [2022-01-18 11:50:51,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118247 to 34485. [2022-01-18 11:50:51,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34485 states, 34484 states have (on average 4.119127711402389) internal successors, (142044), 34484 states have internal predecessors, (142044), 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) [2022-01-18 11:50:51,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34485 states to 34485 states and 142044 transitions. [2022-01-18 11:50:51,416 INFO L78 Accepts]: Start accepts. Automaton has 34485 states and 142044 transitions. Word has length 170 [2022-01-18 11:50:51,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:50:51,416 INFO L470 AbstractCegarLoop]: Abstraction has 34485 states and 142044 transitions. [2022-01-18 11:50:51,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 5.520833333333333) internal successors, (265), 48 states have internal predecessors, (265), 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) [2022-01-18 11:50:51,416 INFO L276 IsEmpty]: Start isEmpty. Operand 34485 states and 142044 transitions. [2022-01-18 11:50:51,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:50:51,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:50:51,490 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:50:51,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2022-01-18 11:50:51,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-01-18 11:50:51,692 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:50:51,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:50:51,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1684417633, now seen corresponding path program 19 times [2022-01-18 11:50:51,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:50:51,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621417467] [2022-01-18 11:50:51,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:50:51,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:50:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:50:51,973 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:50:51,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:50:51,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621417467] [2022-01-18 11:50:51,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621417467] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:50:51,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334622356] [2022-01-18 11:50:51,973 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 11:50:51,973 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:50:51,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:50:51,976 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:50:52,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2022-01-18 11:50:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:50:52,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 64 conjunts are in the unsatisfiable core [2022-01-18 11:50:52,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:50:52,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:50:52,715 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:50:52,770 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:50:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:50:52,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:50:53,158 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2163 (Array Int Int))) (< (+ c_~s_6~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2163) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0)))) (+ c_~t_4~0 1 c_~s_2~0))) (forall ((v_ArrVal_2163 (Array Int Int))) (<= (+ c_~t_4~0 c_~s_2~0) (+ c_~s_6~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2163) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0))))))) is different from false [2022-01-18 11:50:53,172 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:50:53,172 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 51 [2022-01-18 11:50:53,175 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2022-01-18 11:50:53,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:50:53,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:50:53,196 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 3 [2022-01-18 11:50:53,608 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:50:53,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334622356] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:50:53,608 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:50:53,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 17] total 41 [2022-01-18 11:50:53,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33464873] [2022-01-18 11:50:53,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:50:53,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-01-18 11:50:53,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:50:53,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-01-18 11:50:53,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1423, Unknown=1, NotChecked=76, Total=1640 [2022-01-18 11:50:53,609 INFO L87 Difference]: Start difference. First operand 34485 states and 142044 transitions. Second operand has 41 states, 41 states have (on average 6.7073170731707314) internal successors, (275), 41 states have internal predecessors, (275), 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) [2022-01-18 11:50:55,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:50:55,637 INFO L93 Difference]: Finished difference Result 56277 states and 235236 transitions. [2022-01-18 11:50:55,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 11:50:55,638 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 6.7073170731707314) internal successors, (275), 41 states have internal predecessors, (275), 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 170 [2022-01-18 11:50:55,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:50:55,876 INFO L225 Difference]: With dead ends: 56277 [2022-01-18 11:50:55,876 INFO L226 Difference]: Without dead ends: 53196 [2022-01-18 11:50:55,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 315 SyntacticMatches, 5 SemanticMatches, 60 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=482, Invalid=3181, Unknown=1, NotChecked=118, Total=3782 [2022-01-18 11:50:55,877 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 1159 mSDsluCounter, 5115 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 4749 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 404 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:50:55,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1159 Valid, 4749 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1734 Invalid, 0 Unknown, 404 Unchecked, 0.7s Time] [2022-01-18 11:50:55,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53196 states. [2022-01-18 11:50:57,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53196 to 34585. [2022-01-18 11:50:57,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34585 states, 34584 states have (on average 4.1201422623178345) internal successors, (142491), 34584 states have internal predecessors, (142491), 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) [2022-01-18 11:50:57,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34585 states to 34585 states and 142491 transitions. [2022-01-18 11:50:57,348 INFO L78 Accepts]: Start accepts. Automaton has 34585 states and 142491 transitions. Word has length 170 [2022-01-18 11:50:57,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:50:57,348 INFO L470 AbstractCegarLoop]: Abstraction has 34585 states and 142491 transitions. [2022-01-18 11:50:57,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 6.7073170731707314) internal successors, (275), 41 states have internal predecessors, (275), 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) [2022-01-18 11:50:57,348 INFO L276 IsEmpty]: Start isEmpty. Operand 34585 states and 142491 transitions. [2022-01-18 11:50:57,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:50:57,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:50:57,430 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:50:57,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2022-01-18 11:50:57,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:50:57,630 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:50:57,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:50:57,631 INFO L85 PathProgramCache]: Analyzing trace with hash 2145151155, now seen corresponding path program 20 times [2022-01-18 11:50:57,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:50:57,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434325183] [2022-01-18 11:50:57,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:50:57,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:50:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:50:57,935 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:50:57,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:50:57,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434325183] [2022-01-18 11:50:57,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434325183] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:50:57,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856759890] [2022-01-18 11:50:57,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:50:57,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:50:57,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:50:57,940 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:50:57,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2022-01-18 11:50:58,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:50:58,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:50:58,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 62 conjunts are in the unsatisfiable core [2022-01-18 11:50:58,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:50:58,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:50:58,635 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:50:58,682 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-18 11:50:58,837 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:50:58,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:50:59,043 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2212 (Array Int Int))) (< (+ c_~t_4~0 c_~s_2~0) (+ c_~s_6~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2212) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0))) 1))) (forall ((v_ArrVal_2212 (Array Int Int))) (<= (+ c_~s_6~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2212) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0)))) (+ c_~t_4~0 c_~s_2~0)))) is different from false [2022-01-18 11:50:59,061 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:50:59,062 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 51 [2022-01-18 11:50:59,066 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2022-01-18 11:50:59,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:50:59,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:50:59,102 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 3 [2022-01-18 11:50:59,472 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:50:59,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856759890] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:50:59,472 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:50:59,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-01-18 11:50:59,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934504444] [2022-01-18 11:50:59,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:50:59,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 11:50:59,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:50:59,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 11:50:59,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=940, Unknown=1, NotChecked=62, Total=1122 [2022-01-18 11:50:59,473 INFO L87 Difference]: Start difference. First operand 34585 states and 142491 transitions. Second operand has 34 states, 34 states have (on average 7.176470588235294) internal successors, (244), 34 states have internal predecessors, (244), 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) [2022-01-18 11:51:01,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:51:01,183 INFO L93 Difference]: Finished difference Result 56395 states and 236085 transitions. [2022-01-18 11:51:01,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:51:01,184 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.176470588235294) internal successors, (244), 34 states have internal predecessors, (244), 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 170 [2022-01-18 11:51:01,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:51:01,409 INFO L225 Difference]: With dead ends: 56395 [2022-01-18 11:51:01,410 INFO L226 Difference]: Without dead ends: 53074 [2022-01-18 11:51:01,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 320 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=417, Invalid=2238, Unknown=1, NotChecked=100, Total=2756 [2022-01-18 11:51:01,410 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 981 mSDsluCounter, 3847 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 3704 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 312 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:51:01,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [981 Valid, 3704 Invalid, 1592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1246 Invalid, 0 Unknown, 312 Unchecked, 0.5s Time] [2022-01-18 11:51:01,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53074 states. [2022-01-18 11:51:02,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53074 to 34485. [2022-01-18 11:51:02,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34485 states, 34484 states have (on average 4.119127711402389) internal successors, (142044), 34484 states have internal predecessors, (142044), 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) [2022-01-18 11:51:02,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34485 states to 34485 states and 142044 transitions. [2022-01-18 11:51:02,784 INFO L78 Accepts]: Start accepts. Automaton has 34485 states and 142044 transitions. Word has length 170 [2022-01-18 11:51:02,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:51:02,784 INFO L470 AbstractCegarLoop]: Abstraction has 34485 states and 142044 transitions. [2022-01-18 11:51:02,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.176470588235294) internal successors, (244), 34 states have internal predecessors, (244), 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) [2022-01-18 11:51:02,784 INFO L276 IsEmpty]: Start isEmpty. Operand 34485 states and 142044 transitions. [2022-01-18 11:51:02,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:51:02,869 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:51:02,869 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:51:02,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2022-01-18 11:51:03,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-01-18 11:51:03,070 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:51:03,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:51:03,071 INFO L85 PathProgramCache]: Analyzing trace with hash -2082131937, now seen corresponding path program 21 times [2022-01-18 11:51:03,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:51:03,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741126580] [2022-01-18 11:51:03,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:51:03,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:51:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:51:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:51:03,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:51:03,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741126580] [2022-01-18 11:51:03,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741126580] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:51:03,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852205234] [2022-01-18 11:51:03,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 11:51:03,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:51:03,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:51:03,364 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:51:03,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2022-01-18 11:51:03,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 11:51:03,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:51:03,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-18 11:51:03,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:51:03,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:51:03,978 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:51:04,035 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:51:04,174 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:51:04,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:51:04,376 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2261 (Array Int Int))) (< (+ c_~s_6~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2261) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0)))) (+ c_~t_4~0 1 c_~s_2~0))) (forall ((v_ArrVal_2261 (Array Int Int))) (<= (+ c_~t_4~0 c_~s_2~0) (+ c_~s_6~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2261) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0))))))) is different from false [2022-01-18 11:51:04,388 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:51:04,388 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 51 [2022-01-18 11:51:04,391 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2022-01-18 11:51:04,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:51:04,430 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:51:04,430 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 26 [2022-01-18 11:51:04,819 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:51:04,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852205234] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:51:04,819 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:51:04,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 38 [2022-01-18 11:51:04,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158511738] [2022-01-18 11:51:04,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:51:04,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-01-18 11:51:04,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:51:04,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-01-18 11:51:04,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1207, Unknown=1, NotChecked=70, Total=1406 [2022-01-18 11:51:04,820 INFO L87 Difference]: Start difference. First operand 34485 states and 142044 transitions. Second operand has 38 states, 38 states have (on average 7.105263157894737) internal successors, (270), 38 states have internal predecessors, (270), 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) [2022-01-18 11:51:06,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:51:06,574 INFO L93 Difference]: Finished difference Result 53671 states and 223348 transitions. [2022-01-18 11:51:06,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:51:06,574 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 7.105263157894737) internal successors, (270), 38 states have internal predecessors, (270), 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 170 [2022-01-18 11:51:06,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:51:06,805 INFO L225 Difference]: With dead ends: 53671 [2022-01-18 11:51:06,806 INFO L226 Difference]: Without dead ends: 51870 [2022-01-18 11:51:06,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 318 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=445, Invalid=2528, Unknown=1, NotChecked=106, Total=3080 [2022-01-18 11:51:06,806 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 1136 mSDsluCounter, 4319 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 4056 SdHoareTripleChecker+Invalid, 1946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 462 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:51:06,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1136 Valid, 4056 Invalid, 1946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1453 Invalid, 0 Unknown, 462 Unchecked, 0.6s Time] [2022-01-18 11:51:06,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51870 states. [2022-01-18 11:51:07,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51870 to 34125. [2022-01-18 11:51:07,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34125 states, 34124 states have (on average 4.1166920642363145) internal successors, (140478), 34124 states have internal predecessors, (140478), 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) [2022-01-18 11:51:08,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34125 states to 34125 states and 140478 transitions. [2022-01-18 11:51:08,155 INFO L78 Accepts]: Start accepts. Automaton has 34125 states and 140478 transitions. Word has length 170 [2022-01-18 11:51:08,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:51:08,155 INFO L470 AbstractCegarLoop]: Abstraction has 34125 states and 140478 transitions. [2022-01-18 11:51:08,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.105263157894737) internal successors, (270), 38 states have internal predecessors, (270), 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) [2022-01-18 11:51:08,155 INFO L276 IsEmpty]: Start isEmpty. Operand 34125 states and 140478 transitions. [2022-01-18 11:51:08,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:51:08,264 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:51:08,265 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:51:08,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2022-01-18 11:51:08,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2022-01-18 11:51:08,471 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:51:08,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:51:08,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1481868481, now seen corresponding path program 22 times [2022-01-18 11:51:08,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:51:08,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331958465] [2022-01-18 11:51:08,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:51:08,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:51:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:51:08,796 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:51:08,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:51:08,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331958465] [2022-01-18 11:51:08,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331958465] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:51:08,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340772189] [2022-01-18 11:51:08,796 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 11:51:08,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:51:08,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:51:08,800 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:51:08,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2022-01-18 11:51:09,020 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 11:51:09,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:51:09,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 64 conjunts are in the unsatisfiable core [2022-01-18 11:51:09,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:51:09,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:51:09,488 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-01-18 11:51:09,517 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-01-18 11:51:09,666 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:51:09,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:51:09,848 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2310 (Array Int Int))) (<= c_~s_6~0 (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2310) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0))) (forall ((v_ArrVal_2310 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2310) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 1)))) is different from false [2022-01-18 11:51:09,856 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2310 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2310) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 c_~t_8~0 1))) (forall ((v_ArrVal_2310 (Array Int Int))) (<= (+ c_~s_6~0 c_~t_8~0) (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2310) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0)))) is different from false [2022-01-18 11:51:09,863 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:51:09,864 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 58 treesize of output 49 [2022-01-18 11:51:09,866 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 11 [2022-01-18 11:51:09,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:51:09,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:51:09,894 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 5 [2022-01-18 11:51:10,275 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:51:10,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340772189] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:51:10,275 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:51:10,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 17] total 42 [2022-01-18 11:51:10,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702524836] [2022-01-18 11:51:10,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:51:10,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-01-18 11:51:10,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:51:10,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-01-18 11:51:10,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1416, Unknown=2, NotChecked=154, Total=1722 [2022-01-18 11:51:10,277 INFO L87 Difference]: Start difference. First operand 34125 states and 140478 transitions. Second operand has 42 states, 42 states have (on average 6.428571428571429) internal successors, (270), 42 states have internal predecessors, (270), 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) [2022-01-18 11:51:12,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:51:12,299 INFO L93 Difference]: Finished difference Result 60645 states and 254730 transitions. [2022-01-18 11:51:12,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:51:12,299 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 6.428571428571429) internal successors, (270), 42 states have internal predecessors, (270), 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 170 [2022-01-18 11:51:12,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:51:12,552 INFO L225 Difference]: With dead ends: 60645 [2022-01-18 11:51:12,552 INFO L226 Difference]: Without dead ends: 57324 [2022-01-18 11:51:12,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 312 SyntacticMatches, 5 SemanticMatches, 62 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=531, Invalid=3257, Unknown=2, NotChecked=242, Total=4032 [2022-01-18 11:51:12,553 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 1197 mSDsluCounter, 4620 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 4364 SdHoareTripleChecker+Invalid, 2136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 485 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:51:12,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1197 Valid, 4364 Invalid, 2136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1609 Invalid, 0 Unknown, 485 Unchecked, 0.6s Time] [2022-01-18 11:51:12,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57324 states. [2022-01-18 11:51:13,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57324 to 34621. [2022-01-18 11:51:13,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34621 states, 34620 states have (on average 4.117215482380127) internal successors, (142538), 34620 states have internal predecessors, (142538), 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) [2022-01-18 11:51:13,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34621 states to 34621 states and 142538 transitions. [2022-01-18 11:51:13,990 INFO L78 Accepts]: Start accepts. Automaton has 34621 states and 142538 transitions. Word has length 170 [2022-01-18 11:51:13,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:51:13,990 INFO L470 AbstractCegarLoop]: Abstraction has 34621 states and 142538 transitions. [2022-01-18 11:51:13,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 6.428571428571429) internal successors, (270), 42 states have internal predecessors, (270), 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) [2022-01-18 11:51:13,990 INFO L276 IsEmpty]: Start isEmpty. Operand 34621 states and 142538 transitions. [2022-01-18 11:51:14,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:51:14,076 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:51:14,077 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:51:14,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2022-01-18 11:51:14,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-01-18 11:51:14,277 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:51:14,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:51:14,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1088212455, now seen corresponding path program 23 times [2022-01-18 11:51:14,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:51:14,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49762997] [2022-01-18 11:51:14,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:51:14,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:51:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:51:14,565 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:51:14,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:51:14,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49762997] [2022-01-18 11:51:14,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49762997] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:51:14,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657800008] [2022-01-18 11:51:14,565 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 11:51:14,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:51:14,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:51:14,568 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:51:14,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2022-01-18 11:51:14,779 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 11:51:14,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:51:14,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 64 conjunts are in the unsatisfiable core [2022-01-18 11:51:14,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:51:15,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:51:15,193 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:51:15,223 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:51:15,381 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:51:15,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:51:15,580 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2359 (Array Int Int))) (< (+ c_~s_6~0 c_~t_8~0) (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2359) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) 1 c_~s_2~0))) (forall ((v_ArrVal_2359 (Array Int Int))) (<= (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2359) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 c_~t_8~0)))) is different from false [2022-01-18 11:51:15,587 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:51:15,587 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 58 treesize of output 49 [2022-01-18 11:51:15,589 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 11 [2022-01-18 11:51:15,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:51:15,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:51:15,615 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 5 [2022-01-18 11:51:15,980 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:51:15,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657800008] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:51:15,980 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:51:15,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 17] total 41 [2022-01-18 11:51:15,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207239202] [2022-01-18 11:51:15,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:51:15,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-01-18 11:51:15,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:51:15,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-01-18 11:51:15,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1419, Unknown=1, NotChecked=76, Total=1640 [2022-01-18 11:51:15,982 INFO L87 Difference]: Start difference. First operand 34621 states and 142538 transitions. Second operand has 41 states, 41 states have (on average 6.658536585365853) internal successors, (273), 41 states have internal predecessors, (273), 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) [2022-01-18 11:51:17,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:51:17,897 INFO L93 Difference]: Finished difference Result 57350 states and 239452 transitions. [2022-01-18 11:51:17,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:51:17,897 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 6.658536585365853) internal successors, (273), 41 states have internal predecessors, (273), 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 170 [2022-01-18 11:51:17,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:51:18,159 INFO L225 Difference]: With dead ends: 57350 [2022-01-18 11:51:18,159 INFO L226 Difference]: Without dead ends: 54269 [2022-01-18 11:51:18,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 315 SyntacticMatches, 4 SemanticMatches, 59 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=469, Invalid=3074, Unknown=1, NotChecked=116, Total=3660 [2022-01-18 11:51:18,160 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 1308 mSDsluCounter, 5074 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 4624 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 394 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:51:18,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1308 Valid, 4624 Invalid, 2245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1820 Invalid, 0 Unknown, 394 Unchecked, 0.7s Time] [2022-01-18 11:51:18,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54269 states. [2022-01-18 11:51:18,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54269 to 34465. [2022-01-18 11:51:19,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34465 states, 34464 states have (on average 4.11516364902507) internal successors, (141825), 34464 states have internal predecessors, (141825), 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) [2022-01-18 11:51:19,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34465 states to 34465 states and 141825 transitions. [2022-01-18 11:51:19,147 INFO L78 Accepts]: Start accepts. Automaton has 34465 states and 141825 transitions. Word has length 170 [2022-01-18 11:51:19,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:51:19,147 INFO L470 AbstractCegarLoop]: Abstraction has 34465 states and 141825 transitions. [2022-01-18 11:51:19,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 6.658536585365853) internal successors, (273), 41 states have internal predecessors, (273), 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) [2022-01-18 11:51:19,147 INFO L276 IsEmpty]: Start isEmpty. Operand 34465 states and 141825 transitions. [2022-01-18 11:51:19,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:51:19,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:51:19,549 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:51:19,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2022-01-18 11:51:19,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:51:19,772 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:51:19,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:51:19,773 INFO L85 PathProgramCache]: Analyzing trace with hash -709000477, now seen corresponding path program 18 times [2022-01-18 11:51:19,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:51:19,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411360260] [2022-01-18 11:51:19,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:51:19,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:51:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:51:20,141 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:51:20,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:51:20,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411360260] [2022-01-18 11:51:20,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411360260] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:51:20,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502654736] [2022-01-18 11:51:20,141 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 11:51:20,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:51:20,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:51:20,144 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:51:20,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2022-01-18 11:51:20,404 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 11:51:20,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:51:20,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 85 conjunts are in the unsatisfiable core [2022-01-18 11:51:20,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:51:20,562 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:51:20,835 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 11:51:20,835 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 11:51:20,843 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:51:20,844 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:51:21,103 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:51:21,176 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:51:21,435 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:51:21,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:51:21,688 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2410 (Array Int Int))) (let ((.cse0 (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2410) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0))) (or (not (<= .cse0 2147483647)) (and (< .cse0 (+ c_~s_6~0 c_~t_8~0 1)) (<= (+ c_~s_6~0 c_~t_8~0) .cse0))))) is different from false [2022-01-18 11:51:21,779 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:51:21,780 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 158 treesize of output 113 [2022-01-18 11:51:21,782 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 95 treesize of output 74 [2022-01-18 11:51:22,302 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:51:22,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502654736] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:51:22,302 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:51:22,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 24, 21] total 49 [2022-01-18 11:51:22,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928727733] [2022-01-18 11:51:22,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:51:22,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-01-18 11:51:22,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:51:22,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-01-18 11:51:22,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=2070, Unknown=1, NotChecked=92, Total=2352 [2022-01-18 11:51:22,303 INFO L87 Difference]: Start difference. First operand 34465 states and 141825 transitions. Second operand has 49 states, 49 states have (on average 6.489795918367347) internal successors, (318), 49 states have internal predecessors, (318), 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) [2022-01-18 11:51:24,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:51:24,891 INFO L93 Difference]: Finished difference Result 54069 states and 226907 transitions. [2022-01-18 11:51:24,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:51:24,892 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 6.489795918367347) internal successors, (318), 49 states have internal predecessors, (318), 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 170 [2022-01-18 11:51:24,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:51:25,081 INFO L225 Difference]: With dead ends: 54069 [2022-01-18 11:51:25,081 INFO L226 Difference]: Without dead ends: 50748 [2022-01-18 11:51:25,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 305 SyntacticMatches, 4 SemanticMatches, 77 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1256 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=748, Invalid=5261, Unknown=1, NotChecked=152, Total=6162 [2022-01-18 11:51:25,083 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 1560 mSDsluCounter, 6912 mSDsCounter, 0 mSdLazyCounter, 2755 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 6281 SdHoareTripleChecker+Invalid, 3150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 325 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:51:25,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1560 Valid, 6281 Invalid, 3150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2755 Invalid, 0 Unknown, 325 Unchecked, 1.1s Time] [2022-01-18 11:51:25,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50748 states. [2022-01-18 11:51:25,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50748 to 33493. [2022-01-18 11:51:25,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33493 states, 33492 states have (on average 4.124089334766511) internal successors, (138124), 33492 states have internal predecessors, (138124), 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) [2022-01-18 11:51:26,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33493 states to 33493 states and 138124 transitions. [2022-01-18 11:51:26,384 INFO L78 Accepts]: Start accepts. Automaton has 33493 states and 138124 transitions. Word has length 170 [2022-01-18 11:51:26,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:51:26,384 INFO L470 AbstractCegarLoop]: Abstraction has 33493 states and 138124 transitions. [2022-01-18 11:51:26,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 6.489795918367347) internal successors, (318), 49 states have internal predecessors, (318), 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) [2022-01-18 11:51:26,384 INFO L276 IsEmpty]: Start isEmpty. Operand 33493 states and 138124 transitions. [2022-01-18 11:51:26,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:51:26,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:51:26,466 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:51:26,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2022-01-18 11:51:26,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:51:26,667 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:51:26,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:51:26,667 INFO L85 PathProgramCache]: Analyzing trace with hash 898786769, now seen corresponding path program 24 times [2022-01-18 11:51:26,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:51:26,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584197155] [2022-01-18 11:51:26,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:51:26,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:51:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:51:26,948 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:51:26,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:51:26,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584197155] [2022-01-18 11:51:26,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584197155] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:51:26,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094705141] [2022-01-18 11:51:26,948 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 11:51:26,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:51:26,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:51:26,949 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:51:26,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2022-01-18 11:51:27,239 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 11:51:27,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:51:27,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 64 conjunts are in the unsatisfiable core [2022-01-18 11:51:27,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:51:27,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:51:27,686 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-01-18 11:51:27,756 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-01-18 11:51:27,883 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:51:27,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:51:28,074 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2459 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2459) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 1))) (forall ((v_ArrVal_2459 (Array Int Int))) (<= c_~s_6~0 (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2459) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0)))) is different from false [2022-01-18 11:51:28,110 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2459 (Array Int Int))) (<= (+ c_~s_6~0 c_~t_8~0) (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2459) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0))) (forall ((v_ArrVal_2459 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2459) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 c_~t_8~0 1)))) is different from false [2022-01-18 11:51:28,121 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:51:28,121 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 51 [2022-01-18 11:51:28,125 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2022-01-18 11:51:28,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:51:28,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:51:28,152 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 3 [2022-01-18 11:51:28,494 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:51:28,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094705141] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:51:28,494 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:51:28,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 17] total 42 [2022-01-18 11:51:28,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34331727] [2022-01-18 11:51:28,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:51:28,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-01-18 11:51:28,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:51:28,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-01-18 11:51:28,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1416, Unknown=2, NotChecked=154, Total=1722 [2022-01-18 11:51:28,495 INFO L87 Difference]: Start difference. First operand 33493 states and 138124 transitions. Second operand has 42 states, 42 states have (on average 6.714285714285714) internal successors, (282), 42 states have internal predecessors, (282), 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) [2022-01-18 11:51:30,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:51:30,579 INFO L93 Difference]: Finished difference Result 57617 states and 241508 transitions. [2022-01-18 11:51:30,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 11:51:30,579 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 6.714285714285714) internal successors, (282), 42 states have internal predecessors, (282), 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 170 [2022-01-18 11:51:30,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:51:30,811 INFO L225 Difference]: With dead ends: 57617 [2022-01-18 11:51:30,811 INFO L226 Difference]: Without dead ends: 54296 [2022-01-18 11:51:30,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 313 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=502, Invalid=3164, Unknown=2, NotChecked=238, Total=3906 [2022-01-18 11:51:30,812 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 1172 mSDsluCounter, 5530 mSDsCounter, 0 mSdLazyCounter, 2030 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 5145 SdHoareTripleChecker+Invalid, 2657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 590 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:51:30,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1172 Valid, 5145 Invalid, 2657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2030 Invalid, 0 Unknown, 590 Unchecked, 0.7s Time] [2022-01-18 11:51:30,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54296 states. [2022-01-18 11:51:31,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54296 to 33013. [2022-01-18 11:51:31,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33013 states, 33012 states have (on average 4.117169514116079) internal successors, (135916), 33012 states have internal predecessors, (135916), 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) [2022-01-18 11:51:32,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33013 states to 33013 states and 135916 transitions. [2022-01-18 11:51:32,178 INFO L78 Accepts]: Start accepts. Automaton has 33013 states and 135916 transitions. Word has length 170 [2022-01-18 11:51:32,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:51:32,179 INFO L470 AbstractCegarLoop]: Abstraction has 33013 states and 135916 transitions. [2022-01-18 11:51:32,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 6.714285714285714) internal successors, (282), 42 states have internal predecessors, (282), 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) [2022-01-18 11:51:32,189 INFO L276 IsEmpty]: Start isEmpty. Operand 33013 states and 135916 transitions. [2022-01-18 11:51:32,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:51:32,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:51:32,292 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:51:32,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2022-01-18 11:51:32,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:51:32,492 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:51:32,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:51:32,493 INFO L85 PathProgramCache]: Analyzing trace with hash -13807195, now seen corresponding path program 25 times [2022-01-18 11:51:32,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:51:32,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240705394] [2022-01-18 11:51:32,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:51:32,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:51:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:51:32,851 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:51:32,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:51:32,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240705394] [2022-01-18 11:51:32,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240705394] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:51:32,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523627723] [2022-01-18 11:51:32,852 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 11:51:32,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:51:32,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:51:32,853 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:51:32,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2022-01-18 11:51:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:51:33,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 70 conjunts are in the unsatisfiable core [2022-01-18 11:51:33,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:51:33,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:51:33,610 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:51:33,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:51:33,730 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-01-18 11:51:33,815 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-01-18 11:51:33,946 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:51:33,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:51:34,140 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2509 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2509) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 1))) (forall ((v_ArrVal_2509 (Array Int Int))) (<= c_~s_6~0 (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2509) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0)))) is different from false [2022-01-18 11:51:34,153 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2509 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2509) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 c_~t_8~0 1))) (forall ((v_ArrVal_2509 (Array Int Int))) (<= (+ c_~s_6~0 c_~t_8~0) (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2509) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0)))) is different from false [2022-01-18 11:51:34,182 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2509 (Array Int Int)) (v_ArrVal_2508 (Array Int Int))) (<= (+ c_~s_6~0 c_~t_8~0) (+ (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2508) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2509) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0))) (forall ((v_ArrVal_2509 (Array Int Int)) (v_ArrVal_2508 (Array Int Int))) (< (+ (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2508) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2509) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 c_~t_8~0 1)))) is different from false [2022-01-18 11:51:34,191 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:51:34,191 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 266 treesize of output 194 [2022-01-18 11:51:34,194 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 176 treesize of output 148 [2022-01-18 11:51:34,197 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 81 treesize of output 67 [2022-01-18 11:51:34,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:51:34,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:51:34,279 INFO L353 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2022-01-18 11:51:34,279 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 12 [2022-01-18 11:51:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:51:34,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523627723] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:51:34,654 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:51:34,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21, 19] total 42 [2022-01-18 11:51:34,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437836881] [2022-01-18 11:51:34,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:51:34,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-01-18 11:51:34,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:51:34,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-01-18 11:51:34,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1337, Unknown=3, NotChecked=228, Total=1722 [2022-01-18 11:51:34,655 INFO L87 Difference]: Start difference. First operand 33013 states and 135916 transitions. Second operand has 42 states, 42 states have (on average 6.166666666666667) internal successors, (259), 42 states have internal predecessors, (259), 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) [2022-01-18 11:51:36,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:51:36,691 INFO L93 Difference]: Finished difference Result 59581 states and 249213 transitions. [2022-01-18 11:51:36,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 11:51:36,692 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 6.166666666666667) internal successors, (259), 42 states have internal predecessors, (259), 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 170 [2022-01-18 11:51:36,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:51:36,904 INFO L225 Difference]: With dead ends: 59581 [2022-01-18 11:51:36,904 INFO L226 Difference]: Without dead ends: 55960 [2022-01-18 11:51:36,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 314 SyntacticMatches, 6 SemanticMatches, 59 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=465, Invalid=2850, Unknown=3, NotChecked=342, Total=3660 [2022-01-18 11:51:36,904 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 903 mSDsluCounter, 5485 mSDsCounter, 0 mSdLazyCounter, 2100 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 5090 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 893 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:51:36,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [903 Valid, 5090 Invalid, 3028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2100 Invalid, 0 Unknown, 893 Unchecked, 0.8s Time] [2022-01-18 11:51:36,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55960 states. [2022-01-18 11:51:37,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55960 to 33349. [2022-01-18 11:51:37,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33349 states, 33348 states have (on average 4.1228259565791054) internal successors, (137488), 33348 states have internal predecessors, (137488), 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) [2022-01-18 11:51:38,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33349 states to 33349 states and 137488 transitions. [2022-01-18 11:51:38,228 INFO L78 Accepts]: Start accepts. Automaton has 33349 states and 137488 transitions. Word has length 170 [2022-01-18 11:51:38,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:51:38,228 INFO L470 AbstractCegarLoop]: Abstraction has 33349 states and 137488 transitions. [2022-01-18 11:51:38,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 6.166666666666667) internal successors, (259), 42 states have internal predecessors, (259), 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) [2022-01-18 11:51:38,228 INFO L276 IsEmpty]: Start isEmpty. Operand 33349 states and 137488 transitions. [2022-01-18 11:51:38,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:51:38,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:51:38,302 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:51:38,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2022-01-18 11:51:38,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2022-01-18 11:51:38,503 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:51:38,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:51:38,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1368426203, now seen corresponding path program 19 times [2022-01-18 11:51:38,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:51:38,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932831282] [2022-01-18 11:51:38,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:51:38,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:51:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:51:38,893 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:51:38,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:51:38,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932831282] [2022-01-18 11:51:38,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932831282] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:51:38,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034155402] [2022-01-18 11:51:38,893 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 11:51:38,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:51:38,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:51:38,894 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:51:38,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2022-01-18 11:51:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:51:39,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 74 conjunts are in the unsatisfiable core [2022-01-18 11:51:39,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:51:39,139 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:51:39,354 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:51:39,354 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:51:39,577 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:51:39,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:51:39,691 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-01-18 11:51:39,741 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-01-18 11:51:39,888 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:51:39,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:51:40,109 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2560 (Array Int Int))) (<= c_~s_6~0 (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2560) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0))) (forall ((v_ArrVal_2560 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2560) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 1)))) is different from false [2022-01-18 11:51:40,124 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2560 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2560) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 c_~t_8~0 1))) (forall ((v_ArrVal_2560 (Array Int Int))) (<= (+ c_~s_6~0 c_~t_8~0) (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2560) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0)))) is different from false [2022-01-18 11:51:40,157 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2559 (Array Int Int)) (v_ArrVal_2560 (Array Int Int))) (<= (+ c_~s_6~0 c_~t_8~0) (+ (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2559) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2560) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0))) (forall ((v_ArrVal_2559 (Array Int Int)) (v_ArrVal_2560 (Array Int Int))) (< (+ (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2559) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2560) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 c_~t_8~0 1)))) is different from false [2022-01-18 11:51:40,167 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:51:40,167 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 128 treesize of output 101 [2022-01-18 11:51:40,170 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 83 treesize of output 69 [2022-01-18 11:51:40,174 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 37 treesize of output 30 [2022-01-18 11:51:40,232 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:51:40,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 11:51:40,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:51:40,235 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 3 [2022-01-18 11:51:40,971 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:51:40,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034155402] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:51:40,972 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:51:40,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21, 19] total 47 [2022-01-18 11:51:40,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795125531] [2022-01-18 11:51:40,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:51:40,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-01-18 11:51:40,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:51:40,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-01-18 11:51:40,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1749, Unknown=3, NotChecked=258, Total=2162 [2022-01-18 11:51:40,973 INFO L87 Difference]: Start difference. First operand 33349 states and 137488 transitions. Second operand has 47 states, 47 states have (on average 5.872340425531915) internal successors, (276), 47 states have internal predecessors, (276), 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) [2022-01-18 11:51:43,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:51:43,401 INFO L93 Difference]: Finished difference Result 55837 states and 234733 transitions. [2022-01-18 11:51:43,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:51:43,402 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 5.872340425531915) internal successors, (276), 47 states have internal predecessors, (276), 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 170 [2022-01-18 11:51:43,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:51:43,595 INFO L225 Difference]: With dead ends: 55837 [2022-01-18 11:51:43,595 INFO L226 Difference]: Without dead ends: 52516 [2022-01-18 11:51:43,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 309 SyntacticMatches, 5 SemanticMatches, 71 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1001 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=526, Invalid=4313, Unknown=3, NotChecked=414, Total=5256 [2022-01-18 11:51:43,596 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 1510 mSDsluCounter, 6642 mSDsCounter, 0 mSdLazyCounter, 2099 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 6079 SdHoareTripleChecker+Invalid, 3533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1375 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:51:43,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1510 Valid, 6079 Invalid, 3533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2099 Invalid, 0 Unknown, 1375 Unchecked, 0.9s Time] [2022-01-18 11:51:43,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52516 states. [2022-01-18 11:51:44,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52516 to 33261. [2022-01-18 11:51:44,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33261 states, 33260 states have (on average 4.113950691521347) internal successors, (136830), 33260 states have internal predecessors, (136830), 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) [2022-01-18 11:51:44,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33261 states to 33261 states and 136830 transitions. [2022-01-18 11:51:44,842 INFO L78 Accepts]: Start accepts. Automaton has 33261 states and 136830 transitions. Word has length 170 [2022-01-18 11:51:44,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:51:44,843 INFO L470 AbstractCegarLoop]: Abstraction has 33261 states and 136830 transitions. [2022-01-18 11:51:44,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 5.872340425531915) internal successors, (276), 47 states have internal predecessors, (276), 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) [2022-01-18 11:51:44,843 INFO L276 IsEmpty]: Start isEmpty. Operand 33261 states and 136830 transitions. [2022-01-18 11:51:44,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-18 11:51:44,922 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:51:44,923 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:51:44,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2022-01-18 11:51:45,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2022-01-18 11:51:45,124 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2022-01-18 11:51:45,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:51:45,124 INFO L85 PathProgramCache]: Analyzing trace with hash -2011615281, now seen corresponding path program 26 times [2022-01-18 11:51:45,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:51:45,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381872806] [2022-01-18 11:51:45,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:51:45,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:51:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:51:45,461 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:51:45,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:51:45,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381872806] [2022-01-18 11:51:45,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381872806] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:51:45,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265389084] [2022-01-18 11:51:45,462 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:51:45,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:51:45,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:51:45,464 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:51:45,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2022-01-18 11:51:45,665 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:51:45,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:51:45,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 84 conjunts are in the unsatisfiable core [2022-01-18 11:51:45,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:51:46,072 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-18 11:51:46,263 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:51:46,416 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:51:46,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:51:46,587 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:51:46,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:51:46,670 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 11:51:46,763 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-18 11:51:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:51:46,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:51:47,130 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2614 (Array Int Int))) (<= (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2614) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 c_~t_8~0))) (forall ((v_ArrVal_2614 (Array Int Int))) (< (+ c_~s_6~0 c_~t_8~0) (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2614) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) 1 c_~s_2~0)))) is different from false [2022-01-18 11:51:47,167 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2614 (Array Int Int)) (v_ArrVal_2613 (Array Int Int))) (< (+ c_~s_6~0 c_~t_8~0) (+ (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2613) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2614) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) 1 c_~s_2~0))) (forall ((v_ArrVal_2614 (Array Int Int)) (v_ArrVal_2613 (Array Int Int))) (<= (+ (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2613) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2614) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 c_~t_8~0)))) is different from false [2022-01-18 11:51:47,175 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2614 (Array Int Int)) (v_ArrVal_2613 (Array Int Int))) (< (+ c_~s_6~0 (select (select |c_#memory_int| c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0)))) (+ (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2613) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2614) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) 1 c_~s_2~0))) (forall ((v_ArrVal_2614 (Array Int Int)) (v_ArrVal_2613 (Array Int Int))) (<= (+ (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2613) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2614) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (+ c_~s_6~0 (select (select |c_#memory_int| c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0))))))) is different from false [2022-01-18 11:51:47,194 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2614 (Array Int Int)) (v_ArrVal_2613 (Array Int Int))) (< (select (select |c_#memory_int| c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2613) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2614) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) 1 c_~s_2~0))) (forall ((v_ArrVal_2614 (Array Int Int)) (v_ArrVal_2613 (Array Int Int))) (<= (+ (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2613) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2614) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (select (select |c_#memory_int| c_~X_0~0.base) (+ c_~X_0~0.offset 4))))) is different from false [2022-01-18 11:51:47,222 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2614 (Array Int Int)) (v_ArrVal_2613 (Array Int Int)) (v_ArrVal_2612 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_2612))) (<= (+ (select (select (store (store .cse0 |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2613) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2614) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0) (select (select .cse0 c_~X_0~0.base) (+ c_~X_0~0.offset 4))))) (forall ((v_ArrVal_2614 (Array Int Int)) (v_ArrVal_2613 (Array Int Int)) (v_ArrVal_2612 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_2612))) (< (select (select .cse1 c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ (select (select (store (store .cse1 |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2613) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2614) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) 1 c_~s_2~0))))) is different from false [2022-01-18 11:51:47,246 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2614 (Array Int Int)) (v_ArrVal_2613 (Array Int Int)) (v_ArrVal_2612 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_2612)) (.cse1 (+ c_~X_0~0.offset 4))) (< (select (select .cse0 c_~X_0~0.base) .cse1) (+ (select (select (store (store .cse0 |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2613) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2614) c_~X_0~0.base) .cse1) 1)))) (forall ((v_ArrVal_2614 (Array Int Int)) (v_ArrVal_2613 (Array Int Int)) (v_ArrVal_2612 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_2612)) (.cse3 (+ c_~X_0~0.offset 4))) (<= (select (select (store (store .cse2 |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2613) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_2614) c_~X_0~0.base) .cse3) (select (select .cse2 c_~X_0~0.base) .cse3))))) is different from false [2022-01-18 11:51:47,275 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_thread1Thread1of1ForFork3_~#t3~0.base_138| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork3_~#t3~0.base_138|)) (and (forall ((v_ArrVal_2614 (Array Int Int)) (v_ArrVal_2613 (Array Int Int)) (v_ArrVal_2612 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_2612)) (.cse1 (+ c_~X_0~0.offset 4))) (<= (select (select (store (store .cse0 |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2613) |v_thread1Thread1of1ForFork3_~#t3~0.base_138| v_ArrVal_2614) c_~X_0~0.base) .cse1) (select (select .cse0 c_~X_0~0.base) .cse1)))) (forall ((v_ArrVal_2614 (Array Int Int)) (v_ArrVal_2613 (Array Int Int)) (v_ArrVal_2612 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_2612)) (.cse3 (+ c_~X_0~0.offset 4))) (< (select (select .cse2 c_~X_0~0.base) .cse3) (+ (select (select (store (store .cse2 |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_2613) |v_thread1Thread1of1ForFork3_~#t3~0.base_138| v_ArrVal_2614) c_~X_0~0.base) .cse3) 1))))))) is different from false [2022-01-18 11:52:19,196 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:52:19,197 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 82 [2022-01-18 11:52:19,232 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:52:19,233 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 111482 treesize of output 102848 [2022-01-18 11:52:23,235 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 97581 treesize of output 89901 [2022-01-18 11:52:23,469 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 89901 treesize of output 85805 [2022-01-18 11:52:23,700 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 85805 treesize of output 84781 [2022-01-18 11:52:23,934 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 84781 treesize of output 82733 [2022-01-18 11:52:24,179 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 82733 treesize of output 78381 [2022-01-18 11:52:24,409 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 78381 treesize of output 70189 [2022-01-18 11:52:24,644 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 70189 treesize of output 68141 [2022-01-18 11:52:24,874 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 68141 treesize of output 66989 [2022-01-18 11:52:25,096 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2022-01-18 11:52:25,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2022-01-18 11:52:25,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2022-01-18 11:52:25,309 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-01-18 11:52:25,312 INFO L158 Benchmark]: Toolchain (without parser) took 367181.21ms. Allocated memory was 388.0MB in the beginning and 15.8GB in the end (delta: 15.4GB). Free memory was 334.0MB in the beginning and 12.7GB in the end (delta: -12.4GB). Peak memory consumption was 4.3GB. Max. memory is 16.0GB. [2022-01-18 11:52:25,312 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 388.0MB. Free memory is still 350.4MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 11:52:25,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.09ms. Allocated memory is still 388.0MB. Free memory was 333.8MB in the beginning and 358.2MB in the end (delta: -24.4MB). Peak memory consumption was 17.3MB. Max. memory is 16.0GB. [2022-01-18 11:52:25,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.97ms. Allocated memory is still 388.0MB. Free memory was 358.2MB in the beginning and 356.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:52:25,312 INFO L158 Benchmark]: Boogie Preprocessor took 26.18ms. Allocated memory is still 388.0MB. Free memory was 356.1MB in the beginning and 354.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:52:25,312 INFO L158 Benchmark]: RCFGBuilder took 633.79ms. Allocated memory is still 388.0MB. Free memory was 354.0MB in the beginning and 318.3MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. [2022-01-18 11:52:25,312 INFO L158 Benchmark]: TraceAbstraction took 366149.23ms. Allocated memory was 388.0MB in the beginning and 15.8GB in the end (delta: 15.4GB). Free memory was 317.3MB in the beginning and 12.7GB in the end (delta: -12.4GB). Peak memory consumption was 4.3GB. Max. memory is 16.0GB. [2022-01-18 11:52:25,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 388.0MB. Free memory is still 350.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 330.09ms. Allocated memory is still 388.0MB. Free memory was 333.8MB in the beginning and 358.2MB in the end (delta: -24.4MB). Peak memory consumption was 17.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 36.97ms. Allocated memory is still 388.0MB. Free memory was 358.2MB in the beginning and 356.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.18ms. Allocated memory is still 388.0MB. Free memory was 356.1MB in the beginning and 354.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 633.79ms. Allocated memory is still 388.0MB. Free memory was 354.0MB in the beginning and 318.3MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. * TraceAbstraction took 366149.23ms. Allocated memory was 388.0MB in the beginning and 15.8GB in the end (delta: 15.4GB). Free memory was 317.3MB in the beginning and 12.7GB in the end (delta: -12.4GB). Peak memory consumption was 4.3GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-01-18 11:52:25,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...