/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-a802222-m [2022-12-11 19:48:46,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:48:46,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:48:46,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:48:46,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:48:46,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:48:46,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:48:46,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:48:46,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:48:46,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:48:46,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:48:46,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:48:46,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:48:46,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:48:46,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:48:46,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:48:46,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:48:46,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:48:46,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:48:46,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:48:46,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:48:46,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:48:46,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:48:46,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:48:46,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:48:46,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:48:46,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:48:46,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:48:46,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:48:46,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:48:46,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:48:46,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:48:46,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:48:46,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:48:46,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:48:46,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:48:46,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:48:46,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:48:46,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:48:46,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:48:46,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:48:46,375 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 [2022-12-11 19:48:46,399 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:48:46,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:48:46,401 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:48:46,401 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:48:46,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:48:46,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:48:46,402 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:48:46,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:48:46,424 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:48:46,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:48:46,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:48:46,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:48:46,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:48:46,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:48:46,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:48:46,424 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:48:46,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:48:46,427 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:48:46,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:48:46,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:48:46,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:48:46,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:48:46,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:48:46,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:48:46,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:48:46,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:48:46,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:48:46,428 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:48:46,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:48:46,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:48:46,429 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:48:46,429 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:48:46,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:48:46,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:48:46,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:48:46,722 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:48:46,722 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:48:46,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c [2022-12-11 19:48:47,632 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:48:47,801 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:48:47,802 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c [2022-12-11 19:48:47,806 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b747510ba/111061c4666d4580bb103f8ff4dfbb83/FLAGd88f9af1a [2022-12-11 19:48:48,201 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b747510ba/111061c4666d4580bb103f8ff4dfbb83 [2022-12-11 19:48:48,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:48:48,204 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:48:48,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:48:48,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:48:48,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:48:48,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:48:48" (1/1) ... [2022-12-11 19:48:48,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f9d5e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:48:48, skipping insertion in model container [2022-12-11 19:48:48,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:48:48" (1/1) ... [2022-12-11 19:48:48,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:48:48,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:48:48,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:48:48,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:48:48,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:48:48,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:48:48,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:48:48,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:48:48,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:48:48,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:48:48,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:48:48,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:48:48,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:48:48,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:48:48,429 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] [2022-12-11 19:48:48,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:48:48,451 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:48:48,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:48:48,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:48:48,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:48:48,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:48:48,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:48:48,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:48:48,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:48:48,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:48:48,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:48:48,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:48:48,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:48:48,480 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:48:48,488 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] [2022-12-11 19:48:48,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:48:48,509 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:48:48,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:48:48 WrapperNode [2022-12-11 19:48:48,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:48:48,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:48:48,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:48:48,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:48:48,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:48:48" (1/1) ... [2022-12-11 19:48:48,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:48:48" (1/1) ... [2022-12-11 19:48:48,569 INFO L138 Inliner]: procedures = 25, calls = 58, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 280 [2022-12-11 19:48:48,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:48:48,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:48:48,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:48:48,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:48:48,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:48:48" (1/1) ... [2022-12-11 19:48:48,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:48:48" (1/1) ... [2022-12-11 19:48:48,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:48:48" (1/1) ... [2022-12-11 19:48:48,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:48:48" (1/1) ... [2022-12-11 19:48:48,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:48:48" (1/1) ... [2022-12-11 19:48:48,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:48:48" (1/1) ... [2022-12-11 19:48:48,603 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:48:48" (1/1) ... [2022-12-11 19:48:48,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:48:48" (1/1) ... [2022-12-11 19:48:48,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:48:48,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:48:48,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:48:48,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:48:48,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:48:48" (1/1) ... [2022-12-11 19:48:48,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:48:48,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:48:48,640 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) [2022-12-11 19:48:48,645 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 [2022-12-11 19:48:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:48:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:48:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:48:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 19:48:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-11 19:48:48,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-11 19:48:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-11 19:48:48,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-11 19:48:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-11 19:48:48,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-11 19:48:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:48:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 19:48:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 19:48:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-11 19:48:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:48:48,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:48:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:48:48,675 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 19:48:48,756 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:48:48,758 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:48:49,131 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:48:49,368 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:48:49,368 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-11 19:48:49,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:48:49 BoogieIcfgContainer [2022-12-11 19:48:49,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:48:49,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:48:49,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:48:49,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:48:49,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:48:48" (1/3) ... [2022-12-11 19:48:49,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f01752c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:48:49, skipping insertion in model container [2022-12-11 19:48:49,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:48:48" (2/3) ... [2022-12-11 19:48:49,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f01752c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:48:49, skipping insertion in model container [2022-12-11 19:48:49,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:48:49" (3/3) ... [2022-12-11 19:48:49,378 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum.wvr.c [2022-12-11 19:48:49,391 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:48:49,392 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 19:48:49,392 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:48:49,445 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-11 19:48:49,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 179 transitions, 382 flow [2022-12-11 19:48:49,563 INFO L130 PetriNetUnfolder]: 16/176 cut-off events. [2022-12-11 19:48:49,563 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-11 19:48:49,568 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. [2022-12-11 19:48:49,569 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 179 transitions, 382 flow [2022-12-11 19:48:49,576 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 166 transitions, 350 flow [2022-12-11 19:48:49,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:48:49,587 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;@6257a240, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:48:49,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 19:48:49,611 INFO L130 PetriNetUnfolder]: 16/165 cut-off events. [2022-12-11 19:48:49,612 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-11 19:48:49,612 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:48:49,612 INFO L214 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] [2022-12-11 19:48:49,613 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)] === [2022-12-11 19:48:49,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:48:49,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1912836362, now seen corresponding path program 1 times [2022-12-11 19:48:49,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:48:49,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667661222] [2022-12-11 19:48:49,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:48:49,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:48:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:48:50,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:48:50,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:48:50,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667661222] [2022-12-11 19:48:50,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667661222] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:48:50,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:48:50,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 19:48:50,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099563800] [2022-12-11 19:48:50,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:48:50,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 19:48:50,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:48:50,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 19:48:50,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-11 19:48:50,329 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 179 [2022-12-11 19:48:50,334 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) [2022-12-11 19:48:50,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:48:50,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 179 [2022-12-11 19:48:50,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:48:50,824 INFO L130 PetriNetUnfolder]: 298/790 cut-off events. [2022-12-11 19:48:50,824 INFO L131 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2022-12-11 19:48:50,830 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. [2022-12-11 19:48:50,836 INFO L137 encePairwiseOnDemand]: 151/179 looper letters, 62 selfloop transitions, 10 changer transitions 41/198 dead transitions. [2022-12-11 19:48:50,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 198 transitions, 640 flow [2022-12-11 19:48:50,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-11 19:48:50,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-11 19:48:50,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1492 transitions. [2022-12-11 19:48:50,855 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5953711093375897 [2022-12-11 19:48:50,856 INFO L175 Difference]: Start difference. First operand has 160 places, 166 transitions, 350 flow. Second operand 14 states and 1492 transitions. [2022-12-11 19:48:50,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 198 transitions, 640 flow [2022-12-11 19:48:50,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 198 transitions, 628 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-11 19:48:50,866 INFO L231 Difference]: Finished difference. Result has 174 places, 151 transitions, 354 flow [2022-12-11 19:48:50,868 INFO L277 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} [2022-12-11 19:48:50,873 INFO L295 CegarLoopForPetriNet]: 160 programPoint places, 14 predicate places. [2022-12-11 19:48:50,874 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 151 transitions, 354 flow [2022-12-11 19:48:50,875 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) [2022-12-11 19:48:50,875 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:48:50,875 INFO L214 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] [2022-12-11 19:48:50,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:48:50,876 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)] === [2022-12-11 19:48:50,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:48:50,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1283546475, now seen corresponding path program 1 times [2022-12-11 19:48:50,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:48:50,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134784634] [2022-12-11 19:48:50,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:48:50,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:48:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:48:51,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 19:48:51,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:48:51,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134784634] [2022-12-11 19:48:51,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134784634] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 19:48:51,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461109878] [2022-12-11 19:48:51,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:48:51,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:48:51,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:48:51,129 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) [2022-12-11 19:48:51,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-11 19:48:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:48:51,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-11 19:48:51,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 19:48:51,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 19:48:51,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 19:48:51,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 19:48:51,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461109878] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-11 19:48:51,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-11 19:48:51,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-12-11 19:48:51,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658253216] [2022-12-11 19:48:51,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:48:51,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:48:51,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:48:51,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:48:51,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-12-11 19:48:51,617 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 179 [2022-12-11 19:48:51,618 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) [2022-12-11 19:48:51,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:48:51,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 179 [2022-12-11 19:48:51,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:48:51,786 INFO L130 PetriNetUnfolder]: 182/667 cut-off events. [2022-12-11 19:48:51,786 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-12-11 19:48:51,790 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. [2022-12-11 19:48:51,793 INFO L137 encePairwiseOnDemand]: 171/179 looper letters, 46 selfloop transitions, 7 changer transitions 0/159 dead transitions. [2022-12-11 19:48:51,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 159 transitions, 478 flow [2022-12-11 19:48:51,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 19:48:51,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 19:48:51,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 920 transitions. [2022-12-11 19:48:51,796 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7342378292098962 [2022-12-11 19:48:51,796 INFO L175 Difference]: Start difference. First operand has 174 places, 151 transitions, 354 flow. Second operand 7 states and 920 transitions. [2022-12-11 19:48:51,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 159 transitions, 478 flow [2022-12-11 19:48:51,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 159 transitions, 448 flow, removed 7 selfloop flow, removed 10 redundant places. [2022-12-11 19:48:51,803 INFO L231 Difference]: Finished difference. Result has 159 places, 153 transitions, 357 flow [2022-12-11 19:48:51,804 INFO L277 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} [2022-12-11 19:48:51,804 INFO L295 CegarLoopForPetriNet]: 160 programPoint places, -1 predicate places. [2022-12-11 19:48:51,804 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 153 transitions, 357 flow [2022-12-11 19:48:51,805 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) [2022-12-11 19:48:51,805 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:48:51,806 INFO L214 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] [2022-12-11 19:48:51,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-11 19:48:52,011 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 [2022-12-11 19:48:52,012 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)] === [2022-12-11 19:48:52,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:48:52,012 INFO L85 PathProgramCache]: Analyzing trace with hash 466296457, now seen corresponding path program 1 times [2022-12-11 19:48:52,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:48:52,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524513338] [2022-12-11 19:48:52,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:48:52,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:48:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:48:52,230 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 19:48:52,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:48:52,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524513338] [2022-12-11 19:48:52,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524513338] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 19:48:52,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493599106] [2022-12-11 19:48:52,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:48:52,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:48:52,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:48:52,233 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) [2022-12-11 19:48:52,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-11 19:48:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:48:52,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-11 19:48:52,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 19:48:52,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 19:48:52,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 19:48:52,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 19:48:52,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493599106] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-11 19:48:52,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-11 19:48:52,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2022-12-11 19:48:52,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753696819] [2022-12-11 19:48:52,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:48:52,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 19:48:52,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:48:52,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 19:48:52,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-12-11 19:48:52,723 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 179 [2022-12-11 19:48:52,724 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) [2022-12-11 19:48:52,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:48:52,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 179 [2022-12-11 19:48:52,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:48:53,066 INFO L130 PetriNetUnfolder]: 782/1704 cut-off events. [2022-12-11 19:48:53,066 INFO L131 PetriNetUnfolder]: For 517/740 co-relation queries the response was YES. [2022-12-11 19:48:53,070 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. [2022-12-11 19:48:53,076 INFO L137 encePairwiseOnDemand]: 166/179 looper letters, 89 selfloop transitions, 18 changer transitions 0/206 dead transitions. [2022-12-11 19:48:53,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 206 transitions, 718 flow [2022-12-11 19:48:53,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:48:53,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:48:53,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1271 transitions. [2022-12-11 19:48:53,078 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7100558659217877 [2022-12-11 19:48:53,078 INFO L175 Difference]: Start difference. First operand has 159 places, 153 transitions, 357 flow. Second operand 10 states and 1271 transitions. [2022-12-11 19:48:53,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 206 transitions, 718 flow [2022-12-11 19:48:53,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 206 transitions, 706 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-11 19:48:53,081 INFO L231 Difference]: Finished difference. Result has 169 places, 165 transitions, 457 flow [2022-12-11 19:48:53,082 INFO L277 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} [2022-12-11 19:48:53,082 INFO L295 CegarLoopForPetriNet]: 160 programPoint places, 9 predicate places. [2022-12-11 19:48:53,082 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 165 transitions, 457 flow [2022-12-11 19:48:53,083 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) [2022-12-11 19:48:53,083 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:48:53,083 INFO L214 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] [2022-12-11 19:48:53,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-11 19:48:53,288 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 [2022-12-11 19:48:53,289 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)] === [2022-12-11 19:48:53,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:48:53,289 INFO L85 PathProgramCache]: Analyzing trace with hash 940582349, now seen corresponding path program 2 times [2022-12-11 19:48:53,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:48:53,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425228473] [2022-12-11 19:48:53,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:48:53,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:48:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:48:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-11 19:48:53,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:48:53,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425228473] [2022-12-11 19:48:53,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425228473] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 19:48:53,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691157480] [2022-12-11 19:48:53,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-11 19:48:53,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:48:53,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:48:53,466 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) [2022-12-11 19:48:53,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-11 19:48:53,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-11 19:48:53,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 19:48:53,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-11 19:48:53,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 19:48:53,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-11 19:48:53,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-11 19:48:53,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691157480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:48:53,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-11 19:48:53,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-12-11 19:48:53,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277709060] [2022-12-11 19:48:53,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:48:53,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:48:53,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:48:53,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:48:53,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-11 19:48:53,729 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 179 [2022-12-11 19:48:53,729 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) [2022-12-11 19:48:53,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:48:53,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 179 [2022-12-11 19:48:53,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:48:53,961 INFO L130 PetriNetUnfolder]: 504/1133 cut-off events. [2022-12-11 19:48:53,961 INFO L131 PetriNetUnfolder]: For 964/1125 co-relation queries the response was YES. [2022-12-11 19:48:53,963 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. [2022-12-11 19:48:53,968 INFO L137 encePairwiseOnDemand]: 170/179 looper letters, 56 selfloop transitions, 10 changer transitions 0/173 dead transitions. [2022-12-11 19:48:53,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 173 transitions, 616 flow [2022-12-11 19:48:53,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 19:48:53,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 19:48:53,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 962 transitions. [2022-12-11 19:48:53,970 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6717877094972067 [2022-12-11 19:48:53,970 INFO L175 Difference]: Start difference. First operand has 169 places, 165 transitions, 457 flow. Second operand 8 states and 962 transitions. [2022-12-11 19:48:53,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 173 transitions, 616 flow [2022-12-11 19:48:53,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 173 transitions, 609 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-11 19:48:53,975 INFO L231 Difference]: Finished difference. Result has 173 places, 165 transitions, 477 flow [2022-12-11 19:48:53,975 INFO L277 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} [2022-12-11 19:48:53,975 INFO L295 CegarLoopForPetriNet]: 160 programPoint places, 13 predicate places. [2022-12-11 19:48:53,975 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 165 transitions, 477 flow [2022-12-11 19:48:53,976 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) [2022-12-11 19:48:53,976 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:48:53,976 INFO L214 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] [2022-12-11 19:48:53,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-11 19:48:54,191 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 [2022-12-11 19:48:54,192 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)] === [2022-12-11 19:48:54,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:48:54,192 INFO L85 PathProgramCache]: Analyzing trace with hash -2015200653, now seen corresponding path program 1 times [2022-12-11 19:48:54,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:48:54,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073410846] [2022-12-11 19:48:54,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:48:54,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:48:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:48:55,770 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 19:48:55,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:48:55,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073410846] [2022-12-11 19:48:55,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073410846] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 19:48:55,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674186564] [2022-12-11 19:48:55,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:48:55,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:48:55,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:48:55,784 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) [2022-12-11 19:48:55,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-11 19:48:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:48:55,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 101 conjunts are in the unsatisfiable core [2022-12-11 19:48:55,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 19:48:55,925 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 [2022-12-11 19:48:55,959 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:48:55,959 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 [2022-12-11 19:48:56,007 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:48:56,008 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 [2022-12-11 19:48:56,423 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:48:56,423 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 [2022-12-11 19:48:57,636 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-12-11 19:48:57,637 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 [2022-12-11 19:48:57,865 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 [2022-12-11 19:48:58,162 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 [2022-12-11 19:48:58,251 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 [2022-12-11 19:48:58,331 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 [2022-12-11 19:48:58,660 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 19:48:58,661 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 [2022-12-11 19:48:58,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:48:58,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 19:48:59,836 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 [2022-12-11 19:48:59,960 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 [2022-12-11 19:49:00,110 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 [2022-12-11 19:49:00,648 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 [2022-12-11 19:49:00,674 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 [2022-12-11 19:49:00,794 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 19:49:00,795 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 [2022-12-11 19:49:00,841 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 19:49:00,842 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 [2022-12-11 19:49:01,017 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 19:49:01,018 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 [2022-12-11 19:49:01,158 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 19:49:01,159 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 [2022-12-11 19:49:01,308 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 19:49:01,309 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 [2022-12-11 19:51:59,750 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 19:51:59,751 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 [2022-12-11 19:51:59,790 INFO L321 Elim1Store]: treesize reduction 49, result has 32.9 percent of original size [2022-12-11 19:51:59,791 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 [2022-12-11 19:51:59,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 19:51:59,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 19:51:59,870 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 19:51:59,870 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 [2022-12-11 19:51:59,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 19:51:59,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 19:51:59,913 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 19:51:59,915 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 [2022-12-11 19:51:59,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 19:51:59,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 19:51:59,952 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 19:51:59,953 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... [2022-12-11 20:03:10,451 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 [2022-12-11 20:03:10,458 WARN L249 SmtUtils]: Removed 1 from assertion stack [2022-12-11 20:03:10,458 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 [2022-12-11 20:03:10,463 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 20:03:10,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-11 20:03:10,667 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 [2022-12-11 20:03:10,667 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 144 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. [2022-12-11 20:03:10,669 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 20:03:10,669 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 20:03:10,669 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 20:03:10,669 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-12-11 20:03:10,672 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 20:03:10,672 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 20:03:10,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 08:03:10 BasicIcfg [2022-12-11 20:03:10,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 20:03:10,675 INFO L158 Benchmark]: Toolchain (without parser) took 862470.87ms. Allocated memory was 183.5MB in the beginning and 660.6MB in the end (delta: 477.1MB). Free memory was 138.9MB in the beginning and 521.0MB in the end (delta: -382.2MB). Peak memory consumption was 392.4MB. Max. memory is 8.0GB. [2022-12-11 20:03:10,675 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 20:03:10,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.28ms. Allocated memory is still 183.5MB. Free memory was 138.6MB in the beginning and 159.4MB in the end (delta: -20.8MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. [2022-12-11 20:03:10,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.83ms. Allocated memory is still 183.5MB. Free memory was 159.4MB in the beginning and 156.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 20:03:10,676 INFO L158 Benchmark]: Boogie Preprocessor took 46.93ms. Allocated memory is still 183.5MB. Free memory was 156.8MB in the beginning and 154.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 20:03:10,676 INFO L158 Benchmark]: RCFGBuilder took 753.38ms. Allocated memory is still 183.5MB. Free memory was 154.7MB in the beginning and 151.1MB in the end (delta: 3.6MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. [2022-12-11 20:03:10,676 INFO L158 Benchmark]: TraceAbstraction took 861301.97ms. Allocated memory was 183.5MB in the beginning and 660.6MB in the end (delta: 477.1MB). Free memory was 150.1MB in the beginning and 521.0MB in the end (delta: -370.9MB). Peak memory consumption was 402.6MB. Max. memory is 8.0GB. [2022-12-11 20:03:10,677 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 305.28ms. Allocated memory is still 183.5MB. Free memory was 138.6MB in the beginning and 159.4MB in the end (delta: -20.8MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.83ms. Allocated memory is still 183.5MB. Free memory was 159.4MB in the beginning and 156.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.93ms. Allocated memory is still 183.5MB. Free memory was 156.8MB in the beginning and 154.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 753.38ms. Allocated memory is still 183.5MB. Free memory was 154.7MB in the beginning and 151.1MB in the end (delta: 3.6MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. * TraceAbstraction took 861301.97ms. Allocated memory was 183.5MB in the beginning and 660.6MB in the end (delta: 477.1MB). Free memory was 150.1MB in the beginning and 521.0MB in the end (delta: -370.9MB). Peak memory consumption was 402.6MB. 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 PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - 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 PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - 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 PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - 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 PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - 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: 861.2s, 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, 0.4s 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