/usr/bin/java -Xmx8000000000 -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-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 19:20:31,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 19:20:31,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 19:20:31,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 19:20:31,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 19:20:31,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 19:20:31,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 19:20:31,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 19:20:31,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 19:20:31,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 19:20:31,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 19:20:31,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 19:20:31,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 19:20:31,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 19:20:31,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 19:20:31,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 19:20:31,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 19:20:31,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 19:20:31,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 19:20:31,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 19:20:31,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 19:20:31,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 19:20:31,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 19:20:31,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 19:20:31,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 19:20:31,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 19:20:31,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 19:20:31,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 19:20:31,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 19:20:31,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 19:20:31,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 19:20:31,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 19:20:31,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 19:20:31,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 19:20:31,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 19:20:31,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 19:20:31,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 19:20:31,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 19:20:31,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 19:20:31,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 19:20:31,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 19:20:31,759 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-PN-NoLbe.epf [2022-12-05 19:20:31,784 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 19:20:31,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 19:20:31,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 19:20:31,785 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 19:20:31,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 19:20:31,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 19:20:31,786 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 19:20:31,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 19:20:31,787 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 19:20:31,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 19:20:31,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 19:20:31,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 19:20:31,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 19:20:31,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 19:20:31,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 19:20:31,788 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 19:20:31,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 19:20:31,788 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 19:20:31,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 19:20:31,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 19:20:31,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 19:20:31,789 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 19:20:31,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 19:20:31,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 19:20:31,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 19:20:31,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 19:20:31,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 19:20:31,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 19:20:31,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 19:20:31,790 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 19:20:31,790 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 19:20:31,790 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 19:20:32,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 19:20:32,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 19:20:32,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 19:20:32,067 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 19:20:32,067 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 19:20:32,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c [2022-12-05 19:20:33,020 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 19:20:33,171 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 19:20:33,172 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c [2022-12-05 19:20:33,176 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a400f99e9/39dfe576527f42dc8d7dddf60f47457c/FLAG906cc3577 [2022-12-05 19:20:33,187 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a400f99e9/39dfe576527f42dc8d7dddf60f47457c [2022-12-05 19:20:33,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 19:20:33,190 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 19:20:33,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 19:20:33,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 19:20:33,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 19:20:33,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 07:20:33" (1/1) ... [2022-12-05 19:20:33,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb4faa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:33, skipping insertion in model container [2022-12-05 19:20:33,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 07:20:33" (1/1) ... [2022-12-05 19:20:33,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 19:20:33,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 19:20:33,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:33,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:33,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:33,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:33,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:33,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:33,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:33,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:33,343 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:33,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:33,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:33,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:33,349 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c[2835,2848] [2022-12-05 19:20:33,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 19:20:33,361 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 19:20:33,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:33,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:33,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:33,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:33,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:33,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:33,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:33,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:33,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:33,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:33,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:20:33,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:20:33,378 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c[2835,2848] [2022-12-05 19:20:33,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 19:20:33,390 INFO L208 MainTranslator]: Completed translation [2022-12-05 19:20:33,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:33 WrapperNode [2022-12-05 19:20:33,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 19:20:33,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 19:20:33,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 19:20:33,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 19:20:33,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:33" (1/1) ... [2022-12-05 19:20:33,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:33" (1/1) ... [2022-12-05 19:20:33,440 INFO L138 Inliner]: procedures = 25, calls = 58, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 280 [2022-12-05 19:20:33,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 19:20:33,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 19:20:33,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 19:20:33,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 19:20:33,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:33" (1/1) ... [2022-12-05 19:20:33,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:33" (1/1) ... [2022-12-05 19:20:33,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:33" (1/1) ... [2022-12-05 19:20:33,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:33" (1/1) ... [2022-12-05 19:20:33,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:33" (1/1) ... [2022-12-05 19:20:33,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:33" (1/1) ... [2022-12-05 19:20:33,476 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:33" (1/1) ... [2022-12-05 19:20:33,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:33" (1/1) ... [2022-12-05 19:20:33,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 19:20:33,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 19:20:33,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 19:20:33,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 19:20:33,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:33" (1/1) ... [2022-12-05 19:20:33,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 19:20:33,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:20:33,514 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) [2022-12-05 19:20:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 19:20:33,526 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 [2022-12-05 19:20:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 19:20:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 19:20:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 19:20:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 19:20:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 19:20:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-05 19:20:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-05 19:20:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-05 19:20:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-05 19:20:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 19:20:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 19:20:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 19:20:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 19:20:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 19:20:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 19:20:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 19:20:33,559 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 19:20:33,693 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 19:20:33,694 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 19:20:33,990 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 19:20:34,172 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 19:20:34,173 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-05 19:20:34,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 07:20:34 BoogieIcfgContainer [2022-12-05 19:20:34,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 19:20:34,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 19:20:34,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 19:20:34,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 19:20:34,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 07:20:33" (1/3) ... [2022-12-05 19:20:34,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305cfccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 07:20:34, skipping insertion in model container [2022-12-05 19:20:34,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:20:33" (2/3) ... [2022-12-05 19:20:34,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305cfccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 07:20:34, skipping insertion in model container [2022-12-05 19:20:34,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 07:20:34" (3/3) ... [2022-12-05 19:20:34,182 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum.wvr.c [2022-12-05 19:20:34,195 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 19:20:34,195 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 19:20:34,195 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 19:20:34,253 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-05 19:20:34,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 179 transitions, 382 flow [2022-12-05 19:20:34,365 INFO L130 PetriNetUnfolder]: 16/176 cut-off events. [2022-12-05 19:20:34,365 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 19:20:34,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 176 events. 16/176 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 108 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 139. Up to 2 conditions per place. [2022-12-05 19:20:34,370 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 179 transitions, 382 flow [2022-12-05 19:20:34,377 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 166 transitions, 350 flow [2022-12-05 19:20:34,387 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 19:20:34,392 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@44f30bee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 19:20:34,393 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 19:20:34,433 INFO L130 PetriNetUnfolder]: 16/165 cut-off events. [2022-12-05 19:20:34,433 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 19:20:34,433 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:20:34,434 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-05 19:20:34,434 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:20:34,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:20:34,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1912836362, now seen corresponding path program 1 times [2022-12-05 19:20:34,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:20:34,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787857569] [2022-12-05 19:20:34,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:34,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:20:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:35,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:20:35,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:20:35,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787857569] [2022-12-05 19:20:35,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787857569] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:20:35,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:20:35,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 19:20:35,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893357612] [2022-12-05 19:20:35,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:20:35,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 19:20:35,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:20:35,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 19:20:35,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-05 19:20:35,136 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 179 [2022-12-05 19:20:35,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 166 transitions, 350 flow. Second operand has 8 states, 8 states have (on average 103.25) internal successors, (826), 8 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:35,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:20:35,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 179 [2022-12-05 19:20:35,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:20:35,600 INFO L130 PetriNetUnfolder]: 298/790 cut-off events. [2022-12-05 19:20:35,600 INFO L131 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2022-12-05 19:20:35,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1357 conditions, 790 events. 298/790 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3419 event pairs, 167 based on Foata normal form. 10/610 useless extension candidates. Maximal degree in co-relation 1014. Up to 444 conditions per place. [2022-12-05 19:20:35,612 INFO L137 encePairwiseOnDemand]: 151/179 looper letters, 62 selfloop transitions, 10 changer transitions 41/198 dead transitions. [2022-12-05 19:20:35,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 198 transitions, 640 flow [2022-12-05 19:20:35,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-05 19:20:35,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-05 19:20:35,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1492 transitions. [2022-12-05 19:20:35,628 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5953711093375897 [2022-12-05 19:20:35,630 INFO L175 Difference]: Start difference. First operand has 160 places, 166 transitions, 350 flow. Second operand 14 states and 1492 transitions. [2022-12-05 19:20:35,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 198 transitions, 640 flow [2022-12-05 19:20:35,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 198 transitions, 628 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-05 19:20:35,639 INFO L231 Difference]: Finished difference. Result has 174 places, 151 transitions, 354 flow [2022-12-05 19:20:35,641 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=354, PETRI_PLACES=174, PETRI_TRANSITIONS=151} [2022-12-05 19:20:35,646 INFO L294 CegarLoopForPetriNet]: 160 programPoint places, 14 predicate places. [2022-12-05 19:20:35,646 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 151 transitions, 354 flow [2022-12-05 19:20:35,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 103.25) internal successors, (826), 8 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:35,647 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:20:35,648 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-05 19:20:35,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 19:20:35,648 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:20:35,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:20:35,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1283546475, now seen corresponding path program 1 times [2022-12-05 19:20:35,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:20:35,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480033809] [2022-12-05 19:20:35,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:35,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:20:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:35,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 19:20:35,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:20:35,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480033809] [2022-12-05 19:20:35,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480033809] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:20:35,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437690636] [2022-12-05 19:20:35,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:35,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:20:35,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:20:35,939 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) [2022-12-05 19:20:35,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-05 19:20:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:36,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-05 19:20:36,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:20:36,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 19:20:36,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:20:36,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 19:20:36,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437690636] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-05 19:20:36,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-05 19:20:36,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-12-05 19:20:36,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427287132] [2022-12-05 19:20:36,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:20:36,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 19:20:36,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:20:36,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 19:20:36,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-12-05 19:20:36,448 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 179 [2022-12-05 19:20:36,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 151 transitions, 354 flow. Second operand has 7 states, 7 states have (on average 129.14285714285714) internal successors, (904), 7 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:36,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:20:36,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 179 [2022-12-05 19:20:36,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:20:36,594 INFO L130 PetriNetUnfolder]: 182/667 cut-off events. [2022-12-05 19:20:36,594 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-12-05 19:20:36,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1019 conditions, 667 events. 182/667 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3287 event pairs, 80 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 884. Up to 147 conditions per place. [2022-12-05 19:20:36,599 INFO L137 encePairwiseOnDemand]: 171/179 looper letters, 46 selfloop transitions, 7 changer transitions 0/159 dead transitions. [2022-12-05 19:20:36,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 159 transitions, 478 flow [2022-12-05 19:20:36,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 19:20:36,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 19:20:36,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 920 transitions. [2022-12-05 19:20:36,601 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7342378292098962 [2022-12-05 19:20:36,601 INFO L175 Difference]: Start difference. First operand has 174 places, 151 transitions, 354 flow. Second operand 7 states and 920 transitions. [2022-12-05 19:20:36,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 159 transitions, 478 flow [2022-12-05 19:20:36,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 159 transitions, 448 flow, removed 7 selfloop flow, removed 10 redundant places. [2022-12-05 19:20:36,607 INFO L231 Difference]: Finished difference. Result has 159 places, 153 transitions, 357 flow [2022-12-05 19:20:36,608 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=357, PETRI_PLACES=159, PETRI_TRANSITIONS=153} [2022-12-05 19:20:36,608 INFO L294 CegarLoopForPetriNet]: 160 programPoint places, -1 predicate places. [2022-12-05 19:20:36,608 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 153 transitions, 357 flow [2022-12-05 19:20:36,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 129.14285714285714) internal successors, (904), 7 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:36,609 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:20:36,610 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-05 19:20:36,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-05 19:20:36,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:20:36,815 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:20:36,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:20:36,816 INFO L85 PathProgramCache]: Analyzing trace with hash 466296457, now seen corresponding path program 1 times [2022-12-05 19:20:36,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:20:36,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028497755] [2022-12-05 19:20:36,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:36,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:20:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:37,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:20:37,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:20:37,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028497755] [2022-12-05 19:20:37,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028497755] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:20:37,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009579182] [2022-12-05 19:20:37,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:37,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:20:37,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:20:37,030 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) [2022-12-05 19:20:37,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-05 19:20:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:37,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-05 19:20:37,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:20:37,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:20:37,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:20:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:20:37,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009579182] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-05 19:20:37,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-05 19:20:37,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2022-12-05 19:20:37,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198632415] [2022-12-05 19:20:37,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:20:37,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 19:20:37,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:20:37,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 19:20:37,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-12-05 19:20:37,496 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 179 [2022-12-05 19:20:37,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 153 transitions, 357 flow. Second operand has 9 states, 9 states have (on average 121.66666666666667) internal successors, (1095), 9 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:37,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:20:37,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 179 [2022-12-05 19:20:37,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:20:37,824 INFO L130 PetriNetUnfolder]: 782/1704 cut-off events. [2022-12-05 19:20:37,824 INFO L131 PetriNetUnfolder]: For 517/740 co-relation queries the response was YES. [2022-12-05 19:20:37,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3326 conditions, 1704 events. 782/1704 cut-off events. For 517/740 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10254 event pairs, 129 based on Foata normal form. 223/1716 useless extension candidates. Maximal degree in co-relation 3247. Up to 406 conditions per place. [2022-12-05 19:20:37,833 INFO L137 encePairwiseOnDemand]: 166/179 looper letters, 89 selfloop transitions, 18 changer transitions 0/206 dead transitions. [2022-12-05 19:20:37,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 206 transitions, 718 flow [2022-12-05 19:20:37,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 19:20:37,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 19:20:37,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1271 transitions. [2022-12-05 19:20:37,836 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7100558659217877 [2022-12-05 19:20:37,836 INFO L175 Difference]: Start difference. First operand has 159 places, 153 transitions, 357 flow. Second operand 10 states and 1271 transitions. [2022-12-05 19:20:37,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 206 transitions, 718 flow [2022-12-05 19:20:37,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 206 transitions, 706 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 19:20:37,842 INFO L231 Difference]: Finished difference. Result has 169 places, 165 transitions, 457 flow [2022-12-05 19:20:37,843 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=457, PETRI_PLACES=169, PETRI_TRANSITIONS=165} [2022-12-05 19:20:37,844 INFO L294 CegarLoopForPetriNet]: 160 programPoint places, 9 predicate places. [2022-12-05 19:20:37,844 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 165 transitions, 457 flow [2022-12-05 19:20:37,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.66666666666667) internal successors, (1095), 9 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:37,844 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:20:37,845 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-05 19:20:37,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-05 19:20:38,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-05 19:20:38,050 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:20:38,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:20:38,051 INFO L85 PathProgramCache]: Analyzing trace with hash 940582349, now seen corresponding path program 2 times [2022-12-05 19:20:38,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:20:38,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324482877] [2022-12-05 19:20:38,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:38,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:20:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:38,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:20:38,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:20:38,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324482877] [2022-12-05 19:20:38,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324482877] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:20:38,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775678280] [2022-12-05 19:20:38,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 19:20:38,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:20:38,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:20:38,236 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) [2022-12-05 19:20:38,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-05 19:20:38,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-05 19:20:38,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 19:20:38,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-05 19:20:38,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:20:38,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-05 19:20:38,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 19:20:38,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775678280] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:20:38,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 19:20:38,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-12-05 19:20:38,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269076712] [2022-12-05 19:20:38,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:20:38,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 19:20:38,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:20:38,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 19:20:38,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-05 19:20:38,469 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 179 [2022-12-05 19:20:38,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 165 transitions, 457 flow. Second operand has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:38,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:20:38,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 179 [2022-12-05 19:20:38,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:20:38,726 INFO L130 PetriNetUnfolder]: 504/1133 cut-off events. [2022-12-05 19:20:38,726 INFO L131 PetriNetUnfolder]: For 964/1125 co-relation queries the response was YES. [2022-12-05 19:20:38,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2793 conditions, 1133 events. 504/1133 cut-off events. For 964/1125 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5799 event pairs, 136 based on Foata normal form. 181/1270 useless extension candidates. Maximal degree in co-relation 2710. Up to 421 conditions per place. [2022-12-05 19:20:38,733 INFO L137 encePairwiseOnDemand]: 170/179 looper letters, 56 selfloop transitions, 10 changer transitions 0/173 dead transitions. [2022-12-05 19:20:38,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 173 transitions, 616 flow [2022-12-05 19:20:38,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 19:20:38,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 19:20:38,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 962 transitions. [2022-12-05 19:20:38,735 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6717877094972067 [2022-12-05 19:20:38,735 INFO L175 Difference]: Start difference. First operand has 169 places, 165 transitions, 457 flow. Second operand 8 states and 962 transitions. [2022-12-05 19:20:38,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 173 transitions, 616 flow [2022-12-05 19:20:38,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 173 transitions, 609 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 19:20:38,740 INFO L231 Difference]: Finished difference. Result has 173 places, 165 transitions, 477 flow [2022-12-05 19:20:38,741 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=477, PETRI_PLACES=173, PETRI_TRANSITIONS=165} [2022-12-05 19:20:38,741 INFO L294 CegarLoopForPetriNet]: 160 programPoint places, 13 predicate places. [2022-12-05 19:20:38,741 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 165 transitions, 477 flow [2022-12-05 19:20:38,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 19:20:38,742 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:20:38,742 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-05 19:20:38,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-05 19:20:38,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:20:38,949 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:20:38,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:20:38,950 INFO L85 PathProgramCache]: Analyzing trace with hash -2015200653, now seen corresponding path program 1 times [2022-12-05 19:20:38,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:20:38,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500221787] [2022-12-05 19:20:38,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:38,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:20:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:40,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 19:20:40,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:20:40,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500221787] [2022-12-05 19:20:40,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500221787] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:20:40,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083596048] [2022-12-05 19:20:40,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:20:40,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:20:40,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:20:40,520 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) [2022-12-05 19:20:40,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-05 19:20:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:20:40,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 101 conjunts are in the unsatisfiable core [2022-12-05 19:20:40,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:20:40,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-05 19:20:40,712 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 19:20:40,713 INFO L350 Elim1Store]: Elim1 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 18 [2022-12-05 19:20:40,757 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 19:20:40,758 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 22 [2022-12-05 19:20:41,152 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 19:20:41,153 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 25 [2022-12-05 19:20:42,382 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-12-05 19:20:42,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 33 [2022-12-05 19:20:42,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-05 19:20:42,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-05 19:20:43,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-05 19:20:43,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-05 19:20:43,549 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:20:43,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 85 [2022-12-05 19:20:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:20:43,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:20:44,732 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((~M~0 Int) (v_ArrVal_185 (Array Int Int)) (~A~0.base Int)) (or (<= (+ 2 ~M~0) c_~N~0) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185))) (let ((.cse0 (select .cse3 c_~B~0.base)) (.cse1 (select .cse3 ~A~0.base))) (<= (+ c_~res1~0 (select .cse0 c_~B~0.offset) (select .cse1 c_~A~0.offset)) (let ((.cse2 (* ~M~0 4))) (+ (select .cse0 (+ .cse2 c_~B~0.offset)) c_~res2~0 (select .cse1 (+ c_~A~0.offset .cse2))))))) (not (< ~M~0 c_~N~0)))) (forall ((~M~0 Int) (v_ArrVal_185 (Array Int Int)) (~A~0.base Int)) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185))) (let ((.cse4 (select .cse7 c_~B~0.base)) (.cse6 (select .cse7 ~A~0.base))) (<= (let ((.cse5 (* ~M~0 4))) (+ (select .cse4 (+ .cse5 c_~B~0.offset)) c_~res2~0 (select .cse6 (+ c_~A~0.offset .cse5)))) (+ c_~res1~0 (select .cse4 c_~B~0.offset) (select .cse6 c_~A~0.offset)))))))) is different from false [2022-12-05 19:20:44,880 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((~M~0 Int) (v_ArrVal_184 (Array Int Int)) (v_ArrVal_185 (Array Int Int)) (~A~0.base Int)) (or (<= (+ 2 ~M~0) c_~N~0) (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_184) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185))) (let ((.cse0 (select .cse3 c_~B~0.base)) (.cse2 (select .cse3 ~A~0.base))) (<= (let ((.cse1 (* ~M~0 4))) (+ (select .cse0 (+ .cse1 c_~B~0.offset)) c_~res2~0 (select .cse2 (+ c_~A~0.offset .cse1)))) (+ (select .cse0 c_~B~0.offset) (select .cse2 c_~A~0.offset) c_~res1~0)))) (not (< ~M~0 c_~N~0)))) (forall ((~M~0 Int) (v_ArrVal_184 (Array Int Int)) (v_ArrVal_185 (Array Int Int)) (~A~0.base Int)) (or (let ((.cse7 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_184) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185))) (let ((.cse4 (select .cse7 c_~B~0.base)) (.cse5 (select .cse7 ~A~0.base))) (<= (+ (select .cse4 c_~B~0.offset) (select .cse5 c_~A~0.offset) c_~res1~0) (let ((.cse6 (* ~M~0 4))) (+ (select .cse4 (+ .cse6 c_~B~0.offset)) c_~res2~0 (select .cse5 (+ c_~A~0.offset .cse6))))))) (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0))))) is different from false [2022-12-05 19:20:45,000 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((~M~0 Int) (v_ArrVal_184 (Array Int Int)) (v_ArrVal_183 (Array Int Int)) (v_ArrVal_185 (Array Int Int)) (~A~0.base Int)) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (let ((.cse3 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_183) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_184) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185))) (let ((.cse1 (select .cse3 ~A~0.base)) (.cse0 (select .cse3 c_~B~0.base))) (<= (+ (select .cse0 c_~B~0.offset) c_~res1~0 (select .cse1 c_~A~0.offset)) (let ((.cse2 (* ~M~0 4))) (+ c_~res2~0 (select .cse1 (+ c_~A~0.offset .cse2)) (select .cse0 (+ .cse2 c_~B~0.offset))))))))) (forall ((~M~0 Int) (v_ArrVal_184 (Array Int Int)) (v_ArrVal_183 (Array Int Int)) (v_ArrVal_185 (Array Int Int)) (~A~0.base Int)) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (let ((.cse7 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_183) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_184) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185))) (let ((.cse6 (select .cse7 c_~B~0.base)) (.cse4 (select .cse7 ~A~0.base))) (<= (let ((.cse5 (* ~M~0 4))) (+ c_~res2~0 (select .cse4 (+ c_~A~0.offset .cse5)) (select .cse6 (+ .cse5 c_~B~0.offset)))) (+ (select .cse6 c_~B~0.offset) c_~res1~0 (select .cse4 c_~A~0.offset)))))))) is different from false [2022-12-05 19:20:45,531 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((~M~0 Int) (v_ArrVal_184 (Array Int Int)) (v_ArrVal_183 (Array Int Int)) (v_ArrVal_185 (Array Int Int)) (~A~0.base Int)) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (let ((.cse3 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_183) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_184) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185))) (let ((.cse2 (select .cse3 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|)) (.cse0 (select .cse3 ~A~0.base))) (<= (let ((.cse1 (* ~M~0 4))) (+ c_~res2~0 (select .cse0 (+ c_~A~0.offset .cse1)) (select .cse2 (+ .cse1 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)))) (+ (select .cse2 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) c_~res1~0 (select .cse0 c_~A~0.offset))))))) (forall ((~M~0 Int) (v_ArrVal_184 (Array Int Int)) (v_ArrVal_183 (Array Int Int)) (v_ArrVal_185 (Array Int Int)) (~A~0.base Int)) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (let ((.cse7 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_183) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_184) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185))) (let ((.cse5 (select .cse7 ~A~0.base)) (.cse4 (select .cse7 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|))) (<= (+ (select .cse4 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) c_~res1~0 (select .cse5 c_~A~0.offset)) (let ((.cse6 (* ~M~0 4))) (+ c_~res2~0 (select .cse5 (+ c_~A~0.offset .cse6)) (select .cse4 (+ .cse6 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)))))))))) is different from false [2022-12-05 19:20:45,555 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((~M~0 Int) (v_ArrVal_184 (Array Int Int)) (v_ArrVal_183 (Array Int Int)) (v_ArrVal_185 (Array Int Int)) (~A~0.base Int)) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (let ((.cse3 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_183) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_184) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185))) (let ((.cse2 (select .cse3 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|)) (.cse0 (select .cse3 ~A~0.base))) (<= (let ((.cse1 (* ~M~0 4))) (+ c_~res2~0 (select .cse0 (+ c_~A~0.offset .cse1)) (select .cse2 (+ .cse1 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (+ (select .cse2 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) c_~res1~0 (select .cse0 c_~A~0.offset))))))) (forall ((~M~0 Int) (v_ArrVal_184 (Array Int Int)) (v_ArrVal_183 (Array Int Int)) (v_ArrVal_185 (Array Int Int)) (~A~0.base Int)) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (let ((.cse7 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_183) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_184) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185))) (let ((.cse5 (select .cse7 ~A~0.base)) (.cse4 (select .cse7 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (<= (+ (select .cse4 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) c_~res1~0 (select .cse5 c_~A~0.offset)) (let ((.cse6 (* ~M~0 4))) (+ c_~res2~0 (select .cse5 (+ c_~A~0.offset .cse6)) (select .cse4 (+ .cse6 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))))))))) is different from false [2022-12-05 19:20:45,651 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:20:45,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 82 [2022-12-05 19:20:45,691 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:20:45,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36854 treesize of output 33854 [2022-12-05 19:20:45,805 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:20:45,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33782 treesize of output 31794 [2022-12-05 19:20:45,936 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:20:45,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 31734 treesize of output 23602 [2022-12-05 19:20:46,071 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:20:46,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 23542 treesize of output 19506 [2022-12-05 19:23:39,389 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:23:39,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 82 [2022-12-05 19:23:39,422 INFO L321 Elim1Store]: treesize reduction 49, result has 32.9 percent of original size [2022-12-05 19:23:39,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 18422 treesize of output 16909 [2022-12-05 19:23:39,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 19:23:39,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 19:23:39,505 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:23:39,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 16614 treesize of output 15294 [2022-12-05 19:23:39,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 19:23:39,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 19:23:39,546 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:23:39,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 15286 treesize of output 12542 [2022-12-05 19:23:39,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 19:23:39,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 19:23:39,581 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:23:39,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 12534 treesize of output 6654 Received shutdown request... [2022-12-05 19:34:53,682 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-05 19:34:53,682 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-05 19:34:53,750 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 19:34:53,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-05 19:34:53,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:34:53,951 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 144 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 86 known predicates. [2022-12-05 19:34:53,952 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 19:34:53,953 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 19:34:53,953 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-05 19:34:53,953 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-12-05 19:34:53,955 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 19:34:53,955 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 19:34:53,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 07:34:53 BasicIcfg [2022-12-05 19:34:53,957 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 19:34:53,958 INFO L158 Benchmark]: Toolchain (without parser) took 860767.80ms. Allocated memory was 255.9MB in the beginning and 615.5MB in the end (delta: 359.7MB). Free memory was 218.6MB in the beginning and 575.6MB in the end (delta: -357.0MB). Peak memory consumption was 366.5MB. Max. memory is 8.0GB. [2022-12-05 19:34:53,958 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory was 232.6MB in the beginning and 232.5MB in the end (delta: 63.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 19:34:53,958 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.03ms. Allocated memory is still 255.9MB. Free memory was 218.1MB in the beginning and 204.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-05 19:34:53,958 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.64ms. Allocated memory is still 255.9MB. Free memory was 204.9MB in the beginning and 202.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 19:34:53,958 INFO L158 Benchmark]: Boogie Preprocessor took 38.22ms. Allocated memory is still 255.9MB. Free memory was 202.3MB in the beginning and 200.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 19:34:53,959 INFO L158 Benchmark]: RCFGBuilder took 696.40ms. Allocated memory is still 255.9MB. Free memory was 200.2MB in the beginning and 143.1MB in the end (delta: 57.1MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2022-12-05 19:34:53,959 INFO L158 Benchmark]: TraceAbstraction took 859780.02ms. Allocated memory was 255.9MB in the beginning and 615.5MB in the end (delta: 359.7MB). Free memory was 142.0MB in the beginning and 575.6MB in the end (delta: -433.5MB). Peak memory consumption was 290.0MB. Max. memory is 8.0GB. [2022-12-05 19:34:53,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory was 232.6MB in the beginning and 232.5MB in the end (delta: 63.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 200.03ms. Allocated memory is still 255.9MB. Free memory was 218.1MB in the beginning and 204.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.64ms. Allocated memory is still 255.9MB. Free memory was 204.9MB in the beginning and 202.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.22ms. Allocated memory is still 255.9MB. Free memory was 202.3MB in the beginning and 200.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 696.40ms. Allocated memory is still 255.9MB. Free memory was 200.2MB in the beginning and 143.1MB in the end (delta: 57.1MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. * TraceAbstraction took 859780.02ms. Allocated memory was 255.9MB in the beginning and 615.5MB in the end (delta: 359.7MB). Free memory was 142.0MB in the beginning and 575.6MB in the end (delta: -433.5MB). Peak memory consumption was 290.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 106]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 144 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 86 known predicates. - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 144 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 86 known predicates. - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 144 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 86 known predicates. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 144 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 86 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 197 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 859.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 605 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 605 mSDsluCounter, 345 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 218 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 536 IncrementalHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 127 mSDtfsCounter, 536 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 727 GetRequests, 654 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=477occurred in iteration=4, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 927 NumberOfCodeBlocks, 907 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1186 ConstructedInterpolants, 0 QuantifiedInterpolants, 3227 SizeOfPredicates, 16 NumberOfNonLiveVariables, 990 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 16/21 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown