/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-SemanticLbe.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 [2022-12-12 16:00:23,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 16:00:23,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 16:00:23,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 16:00:23,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 16:00:23,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 16:00:23,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 16:00:23,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 16:00:23,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 16:00:23,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 16:00:23,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 16:00:23,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 16:00:23,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 16:00:23,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 16:00:23,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 16:00:23,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 16:00:23,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 16:00:23,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 16:00:23,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 16:00:23,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 16:00:23,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 16:00:23,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 16:00:23,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 16:00:23,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 16:00:23,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 16:00:23,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 16:00:23,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 16:00:23,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 16:00:23,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 16:00:23,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 16:00:23,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 16:00:23,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 16:00:23,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 16:00:23,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 16:00:23,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 16:00:23,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 16:00:23,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 16:00:23,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 16:00:23,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 16:00:23,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 16:00:23,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 16:00:23,512 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-SemanticLbe.epf [2022-12-12 16:00:23,534 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 16:00:23,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 16:00:23,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 16:00:23,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 16:00:23,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 16:00:23,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 16:00:23,535 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 16:00:23,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 16:00:23,535 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 16:00:23,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 16:00:23,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 16:00:23,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 16:00:23,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 16:00:23,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 16:00:23,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 16:00:23,536 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 16:00:23,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 16:00:23,536 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 16:00:23,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 16:00:23,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 16:00:23,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 16:00:23,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 16:00:23,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 16:00:23,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 16:00:23,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 16:00:23,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 16:00:23,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 16:00:23,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 16:00:23,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 16:00:23,569 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 16:00:23,569 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 16:00:23,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 16:00:23,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 16:00:23,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 16:00:23,808 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 16:00:23,808 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 16:00:23,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c [2022-12-12 16:00:24,698 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 16:00:24,858 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 16:00:24,858 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c [2022-12-12 16:00:25,018 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faba2f8c2/2f9a194226ec423d98ce4d7d4badca37/FLAG19975617d [2022-12-12 16:00:25,029 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faba2f8c2/2f9a194226ec423d98ce4d7d4badca37 [2022-12-12 16:00:25,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 16:00:25,032 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 16:00:25,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 16:00:25,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 16:00:25,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 16:00:25,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 04:00:25" (1/1) ... [2022-12-12 16:00:25,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@344dd40d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 04:00:25, skipping insertion in model container [2022-12-12 16:00:25,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 04:00:25" (1/1) ... [2022-12-12 16:00:25,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 16:00:25,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 16:00:25,178 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 16:00:25,181 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 16:00:25,181 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 16:00:25,182 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 16:00:25,185 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 16:00:25,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 16:00:25,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 16:00:25,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 16:00:25,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 16:00:25,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 16:00:25,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 16:00:25,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 16:00:25,196 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] [2022-12-12 16:00:25,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 16:00:25,221 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 16:00:25,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 16:00:25,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 16:00:25,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 16:00:25,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 16:00:25,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 16:00:25,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 16:00:25,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 16:00:25,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 16:00:25,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 16:00:25,248 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 16:00:25,248 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 16:00:25,248 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 16:00:25,251 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] [2022-12-12 16:00:25,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 16:00:25,262 INFO L208 MainTranslator]: Completed translation [2022-12-12 16:00:25,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 04:00:25 WrapperNode [2022-12-12 16:00:25,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 16:00:25,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 16:00:25,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 16:00:25,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 16:00:25,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 04:00:25" (1/1) ... [2022-12-12 16:00:25,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 04:00:25" (1/1) ... [2022-12-12 16:00:25,314 INFO L138 Inliner]: procedures = 25, calls = 58, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 280 [2022-12-12 16:00:25,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 16:00:25,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 16:00:25,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 16:00:25,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 16:00:25,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 04:00:25" (1/1) ... [2022-12-12 16:00:25,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 04:00:25" (1/1) ... [2022-12-12 16:00:25,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 04:00:25" (1/1) ... [2022-12-12 16:00:25,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 04:00:25" (1/1) ... [2022-12-12 16:00:25,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 04:00:25" (1/1) ... [2022-12-12 16:00:25,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 04:00:25" (1/1) ... [2022-12-12 16:00:25,364 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 04:00:25" (1/1) ... [2022-12-12 16:00:25,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 04:00:25" (1/1) ... [2022-12-12 16:00:25,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 16:00:25,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 16:00:25,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 16:00:25,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 16:00:25,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 04:00:25" (1/1) ... [2022-12-12 16:00:25,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 16:00:25,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 16:00:25,400 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) [2022-12-12 16:00:25,416 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 [2022-12-12 16:00:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 16:00:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 16:00:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 16:00:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 16:00:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 16:00:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 16:00:25,443 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 16:00:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 16:00:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 16:00:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 16:00:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 16:00:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 16:00:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 16:00:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 16:00:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 16:00:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 16:00:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 16:00:25,446 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 16:00:25,574 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 16:00:25,577 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 16:00:25,937 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 16:00:26,108 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 16:00:26,108 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-12 16:00:26,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 04:00:26 BoogieIcfgContainer [2022-12-12 16:00:26,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 16:00:26,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 16:00:26,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 16:00:26,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 16:00:26,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 04:00:25" (1/3) ... [2022-12-12 16:00:26,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208efcb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 04:00:26, skipping insertion in model container [2022-12-12 16:00:26,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 04:00:25" (2/3) ... [2022-12-12 16:00:26,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208efcb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 04:00:26, skipping insertion in model container [2022-12-12 16:00:26,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 04:00:26" (3/3) ... [2022-12-12 16:00:26,117 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum.wvr.c [2022-12-12 16:00:26,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 16:00:26,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 16:00:26,129 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 16:00:26,173 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 16:00:26,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 179 transitions, 382 flow [2022-12-12 16:00:26,295 INFO L130 PetriNetUnfolder]: 16/176 cut-off events. [2022-12-12 16:00:26,296 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 16:00:26,301 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. [2022-12-12 16:00:26,301 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 179 transitions, 382 flow [2022-12-12 16:00:26,307 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 166 transitions, 350 flow [2022-12-12 16:00:26,308 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 16:00:26,324 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 166 transitions, 350 flow [2022-12-12 16:00:26,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 166 transitions, 350 flow [2022-12-12 16:00:26,363 INFO L130 PetriNetUnfolder]: 16/166 cut-off events. [2022-12-12 16:00:26,363 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 16:00:26,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 166 events. 16/166 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 107 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 139. Up to 2 conditions per place. [2022-12-12 16:00:26,366 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 166 transitions, 350 flow [2022-12-12 16:00:26,367 INFO L226 LiptonReduction]: Number of co-enabled transitions 1518 [2022-12-12 16:00:31,430 INFO L241 LiptonReduction]: Total number of compositions: 138 [2022-12-12 16:00:31,440 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 16:00:31,444 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;@691888ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 16:00:31,444 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 16:00:31,448 INFO L130 PetriNetUnfolder]: 5/27 cut-off events. [2022-12-12 16:00:31,448 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 16:00:31,448 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 16:00:31,448 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] [2022-12-12 16:00:31,448 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)] === [2022-12-12 16:00:31,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 16:00:31,451 INFO L85 PathProgramCache]: Analyzing trace with hash 597230375, now seen corresponding path program 1 times [2022-12-12 16:00:31,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 16:00:31,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993739186] [2022-12-12 16:00:31,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 16:00:31,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 16:00:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 16:00:31,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 16:00:31,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 16:00:31,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993739186] [2022-12-12 16:00:31,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993739186] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 16:00:31,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 16:00:31,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 16:00:31,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881008171] [2022-12-12 16:00:31,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 16:00:31,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 16:00:31,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 16:00:31,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 16:00:31,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 16:00:31,754 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 28 [2022-12-12 16:00:31,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 16:00:31,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 16:00:31,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 28 [2022-12-12 16:00:31,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 16:00:31,888 INFO L130 PetriNetUnfolder]: 620/871 cut-off events. [2022-12-12 16:00:31,889 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-12-12 16:00:31,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1816 conditions, 871 events. 620/871 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3409 event pairs, 95 based on Foata normal form. 1/577 useless extension candidates. Maximal degree in co-relation 1365. Up to 688 conditions per place. [2022-12-12 16:00:31,896 INFO L137 encePairwiseOnDemand]: 23/28 looper letters, 38 selfloop transitions, 4 changer transitions 1/46 dead transitions. [2022-12-12 16:00:31,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 46 transitions, 211 flow [2022-12-12 16:00:31,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 16:00:31,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 16:00:31,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2022-12-12 16:00:31,904 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6309523809523809 [2022-12-12 16:00:31,906 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 74 flow. Second operand 3 states and 53 transitions. [2022-12-12 16:00:31,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 46 transitions, 211 flow [2022-12-12 16:00:31,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 46 transitions, 189 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-12 16:00:31,911 INFO L231 Difference]: Finished difference. Result has 30 places, 31 transitions, 88 flow [2022-12-12 16:00:31,912 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=30, PETRI_TRANSITIONS=31} [2022-12-12 16:00:31,916 INFO L295 CegarLoopForPetriNet]: 33 programPoint places, -3 predicate places. [2022-12-12 16:00:31,916 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 31 transitions, 88 flow [2022-12-12 16:00:31,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 16:00:31,917 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 16:00:31,919 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] [2022-12-12 16:00:31,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 16:00:31,922 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)] === [2022-12-12 16:00:31,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 16:00:31,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1243665619, now seen corresponding path program 1 times [2022-12-12 16:00:31,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 16:00:31,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858181794] [2022-12-12 16:00:31,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 16:00:31,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 16:00:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 16:00:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 16:00:32,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 16:00:32,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858181794] [2022-12-12 16:00:32,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858181794] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 16:00:32,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 16:00:32,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 16:00:32,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379433088] [2022-12-12 16:00:32,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 16:00:32,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 16:00:32,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 16:00:32,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 16:00:32,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 16:00:32,109 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 28 [2022-12-12 16:00:32,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 31 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 16:00:32,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 16:00:32,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 28 [2022-12-12 16:00:32,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 16:00:32,212 INFO L130 PetriNetUnfolder]: 619/901 cut-off events. [2022-12-12 16:00:32,213 INFO L131 PetriNetUnfolder]: For 140/140 co-relation queries the response was YES. [2022-12-12 16:00:32,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2090 conditions, 901 events. 619/901 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3613 event pairs, 367 based on Foata normal form. 1/694 useless extension candidates. Maximal degree in co-relation 520. Up to 882 conditions per place. [2022-12-12 16:00:32,218 INFO L137 encePairwiseOnDemand]: 23/28 looper letters, 27 selfloop transitions, 4 changer transitions 1/34 dead transitions. [2022-12-12 16:00:32,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 158 flow [2022-12-12 16:00:32,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 16:00:32,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 16:00:32,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2022-12-12 16:00:32,220 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2022-12-12 16:00:32,221 INFO L175 Difference]: Start difference. First operand has 30 places, 31 transitions, 88 flow. Second operand 4 states and 40 transitions. [2022-12-12 16:00:32,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 158 flow [2022-12-12 16:00:32,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 34 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 16:00:32,223 INFO L231 Difference]: Finished difference. Result has 34 places, 33 transitions, 110 flow [2022-12-12 16:00:32,223 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=34, PETRI_TRANSITIONS=33} [2022-12-12 16:00:32,223 INFO L295 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2022-12-12 16:00:32,223 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 33 transitions, 110 flow [2022-12-12 16:00:32,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 16:00:32,224 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 16:00:32,224 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] [2022-12-12 16:00:32,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 16:00:32,224 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)] === [2022-12-12 16:00:32,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 16:00:32,228 INFO L85 PathProgramCache]: Analyzing trace with hash -444556866, now seen corresponding path program 1 times [2022-12-12 16:00:32,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 16:00:32,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185384259] [2022-12-12 16:00:32,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 16:00:32,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 16:00:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 16:00:32,380 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 16:00:32,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 16:00:32,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185384259] [2022-12-12 16:00:32,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185384259] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 16:00:32,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935215080] [2022-12-12 16:00:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 16:00:32,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 16:00:32,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 16:00:32,386 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) [2022-12-12 16:00:32,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-12 16:00:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 16:00:32,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-12 16:00:32,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 16:00:32,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 16:00:32,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 16:00:32,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 16:00:32,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935215080] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 16:00:32,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 16:00:32,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2022-12-12 16:00:32,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544694014] [2022-12-12 16:00:32,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 16:00:32,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 16:00:32,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 16:00:32,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 16:00:32,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-12-12 16:00:32,652 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 28 [2022-12-12 16:00:32,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 33 transitions, 110 flow. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 16:00:32,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 16:00:32,653 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 28 [2022-12-12 16:00:32,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 16:00:32,866 INFO L130 PetriNetUnfolder]: 891/1281 cut-off events. [2022-12-12 16:00:32,866 INFO L131 PetriNetUnfolder]: For 220/220 co-relation queries the response was YES. [2022-12-12 16:00:32,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2917 conditions, 1281 events. 891/1281 cut-off events. For 220/220 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5141 event pairs, 111 based on Foata normal form. 0/1118 useless extension candidates. Maximal degree in co-relation 2893. Up to 405 conditions per place. [2022-12-12 16:00:32,871 INFO L137 encePairwiseOnDemand]: 18/28 looper letters, 57 selfloop transitions, 19 changer transitions 0/77 dead transitions. [2022-12-12 16:00:32,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 77 transitions, 380 flow [2022-12-12 16:00:32,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 16:00:32,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 16:00:32,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 77 transitions. [2022-12-12 16:00:32,873 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.34375 [2022-12-12 16:00:32,873 INFO L175 Difference]: Start difference. First operand has 34 places, 33 transitions, 110 flow. Second operand 8 states and 77 transitions. [2022-12-12 16:00:32,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 77 transitions, 380 flow [2022-12-12 16:00:32,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 77 transitions, 368 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-12-12 16:00:32,875 INFO L231 Difference]: Finished difference. Result has 42 places, 43 transitions, 211 flow [2022-12-12 16:00:32,876 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=211, PETRI_PLACES=42, PETRI_TRANSITIONS=43} [2022-12-12 16:00:32,876 INFO L295 CegarLoopForPetriNet]: 33 programPoint places, 9 predicate places. [2022-12-12 16:00:32,876 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 43 transitions, 211 flow [2022-12-12 16:00:32,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 16:00:32,877 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 16:00:32,877 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] [2022-12-12 16:00:32,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-12 16:00:33,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 16:00:33,082 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)] === [2022-12-12 16:00:33,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 16:00:33,082 INFO L85 PathProgramCache]: Analyzing trace with hash -634020988, now seen corresponding path program 1 times [2022-12-12 16:00:33,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 16:00:33,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809570700] [2022-12-12 16:00:33,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 16:00:33,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 16:00:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 16:00:33,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 16:00:33,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 16:00:33,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809570700] [2022-12-12 16:00:33,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809570700] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 16:00:33,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877187185] [2022-12-12 16:00:33,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 16:00:33,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 16:00:33,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 16:00:33,164 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) [2022-12-12 16:00:33,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-12 16:00:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 16:00:33,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-12 16:00:33,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 16:00:33,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 16:00:33,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 16:00:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 16:00:33,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877187185] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 16:00:33,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 16:00:33,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-12-12 16:00:33,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423240975] [2022-12-12 16:00:33,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 16:00:33,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 16:00:33,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 16:00:33,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 16:00:33,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-12 16:00:33,296 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 28 [2022-12-12 16:00:33,296 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 43 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 16:00:33,296 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 16:00:33,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 28 [2022-12-12 16:00:33,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 16:00:33,444 INFO L130 PetriNetUnfolder]: 770/1140 cut-off events. [2022-12-12 16:00:33,444 INFO L131 PetriNetUnfolder]: For 1463/1536 co-relation queries the response was YES. [2022-12-12 16:00:33,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3621 conditions, 1140 events. 770/1140 cut-off events. For 1463/1536 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4493 event pairs, 324 based on Foata normal form. 128/1246 useless extension candidates. Maximal degree in co-relation 3587. Up to 853 conditions per place. [2022-12-12 16:00:33,450 INFO L137 encePairwiseOnDemand]: 23/28 looper letters, 56 selfloop transitions, 5 changer transitions 0/65 dead transitions. [2022-12-12 16:00:33,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 65 transitions, 457 flow [2022-12-12 16:00:33,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 16:00:33,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 16:00:33,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 50 transitions. [2022-12-12 16:00:33,451 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2022-12-12 16:00:33,451 INFO L175 Difference]: Start difference. First operand has 42 places, 43 transitions, 211 flow. Second operand 5 states and 50 transitions. [2022-12-12 16:00:33,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 65 transitions, 457 flow [2022-12-12 16:00:33,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 65 transitions, 452 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-12 16:00:33,453 INFO L231 Difference]: Finished difference. Result has 45 places, 44 transitions, 227 flow [2022-12-12 16:00:33,454 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=227, PETRI_PLACES=45, PETRI_TRANSITIONS=44} [2022-12-12 16:00:33,454 INFO L295 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2022-12-12 16:00:33,454 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 44 transitions, 227 flow [2022-12-12 16:00:33,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 16:00:33,454 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 16:00:33,454 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] [2022-12-12 16:00:33,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-12 16:00:33,659 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,SelfDestructingSolverStorable3 [2022-12-12 16:00:33,660 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)] === [2022-12-12 16:00:33,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 16:00:33,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1995732252, now seen corresponding path program 1 times [2022-12-12 16:00:33,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 16:00:33,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174936152] [2022-12-12 16:00:33,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 16:00:33,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 16:00:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 16:00:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 16:00:34,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 16:00:34,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174936152] [2022-12-12 16:00:34,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174936152] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 16:00:34,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572282121] [2022-12-12 16:00:34,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 16:00:34,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 16:00:34,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 16:00:34,692 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) [2022-12-12 16:00:34,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-12 16:00:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 16:00:34,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 86 conjunts are in the unsatisfiable core [2022-12-12 16:00:34,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 16:00:34,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 16:00:34,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 16:00:34,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 16:00:34,922 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-12-12 16:00:34,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 15 treesize of output 32 [2022-12-12 16:00:35,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 16:00:35,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 16:00:35,029 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-12 16:00:35,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 14 [2022-12-12 16:00:35,114 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 11 treesize of output 7 [2022-12-12 16:00:35,194 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 [2022-12-12 16:00:35,326 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 [2022-12-12 16:00:35,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 16:00:35,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 16:00:35,567 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-12 16:00:35,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 25 [2022-12-12 16:00:35,658 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-12 16:00:35,670 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-12-12 16:00:35,670 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 31 treesize of output 25 [2022-12-12 16:00:35,710 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 16:00:35,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 16:00:35,766 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_209 (Array Int Int))) (= (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_209)) (.cse1 (* 4 c_~M~0))) (+ c_~res2~0 (select (select .cse0 c_~B~0.base) (+ .cse1 c_~B~0.offset)) (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset .cse1)))) c_~res1~0)) is different from false [2022-12-12 16:00:35,807 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_209 (Array Int Int))) (= (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_209)) (.cse1 (* 4 c_~M~0))) (+ c_~res2~0 (select (select .cse0 c_~B~0.base) (+ .cse1 c_~B~0.offset)) (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset .cse1)))) (let ((.cse2 (* |c_thread1Thread1of1ForFork2_~i~0#1| 4))) (+ (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset .cse2)) (select (select |c_#memory_int| c_~B~0.base) (+ c_~B~0.offset .cse2)) c_~res1~0)))) is different from false [2022-12-12 16:00:35,872 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_209 (Array Int Int)) (v_ArrVal_208 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_208))) (= (+ (select (select .cse0 c_~A~0.base) c_~A~0.offset) c_~res1~0 (select (select .cse0 c_~B~0.base) c_~B~0.offset)) (let ((.cse1 (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_209)) (.cse2 (* 4 c_~M~0))) (+ (select (select .cse1 c_~A~0.base) (+ c_~A~0.offset .cse2)) c_~res2~0 (select (select .cse1 c_~B~0.base) (+ .cse2 c_~B~0.offset))))))) is different from false [2022-12-12 16:00:35,955 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 16:00:35,955 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 111 treesize of output 76 [2022-12-12 16:00:36,085 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 16:00:36,087 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 2392054 treesize of output 2129982 [2022-12-12 16:00:40,525 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 16:00:40,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2129910 treesize of output 1736702 [2022-12-12 16:00:44,662 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 16:00:44,664 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 1736694 treesize of output 1409074 [2022-12-12 16:00:48,858 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 16:00:48,860 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 1409014 treesize of output 1245234 [2022-12-12 16:01:17,772 WARN L233 SmtUtils]: Spent 7.84s on a formula simplification that was a NOOP. DAG size: 1538 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-12 16:01:48,899 WARN L233 SmtUtils]: Spent 23.37s on a formula simplification that was a NOOP. DAG size: 1532 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-12 16:02:45,469 WARN L233 SmtUtils]: Spent 7.96s on a formula simplification that was a NOOP. DAG size: 1482 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-12 16:04:39,290 WARN L233 SmtUtils]: Spent 24.45s on a formula simplification. DAG size of input: 1465 DAG size of output: 1465 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-12 16:05:00,721 WARN L233 SmtUtils]: Spent 17.54s on a formula simplification. DAG size of input: 1463 DAG size of output: 1463 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2022-12-12 16:14:58,119 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 16:14:58,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-12 16:14:58,137 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 [2022-12-12 16:14:58,155 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-12 16:14:58,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 16:14:58,320 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 27 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. [2022-12-12 16:14:58,322 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 16:14:58,322 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 16:14:58,322 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 16:14:58,322 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-12 16:14:58,336 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 16:14:58,336 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 16:14:58,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 04:14:58 BasicIcfg [2022-12-12 16:14:58,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 16:14:58,343 INFO L158 Benchmark]: Toolchain (without parser) took 873311.19ms. Allocated memory was 182.5MB in the beginning and 881.9MB in the end (delta: 699.4MB). Free memory was 159.0MB in the beginning and 687.3MB in the end (delta: -528.3MB). Peak memory consumption was 555.0MB. Max. memory is 8.0GB. [2022-12-12 16:14:58,343 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 16:14:58,345 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.12ms. Allocated memory is still 182.5MB. Free memory was 158.5MB in the beginning and 145.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 16:14:58,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.60ms. Allocated memory is still 182.5MB. Free memory was 145.5MB in the beginning and 142.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 16:14:58,345 INFO L158 Benchmark]: Boogie Preprocessor took 52.83ms. Allocated memory is still 182.5MB. Free memory was 142.8MB in the beginning and 140.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 16:14:58,345 INFO L158 Benchmark]: RCFGBuilder took 743.01ms. Allocated memory is still 182.5MB. Free memory was 140.7MB in the beginning and 124.5MB in the end (delta: 16.2MB). Peak memory consumption was 25.6MB. Max. memory is 8.0GB. [2022-12-12 16:14:58,346 INFO L158 Benchmark]: TraceAbstraction took 872229.49ms. Allocated memory was 182.5MB in the beginning and 881.9MB in the end (delta: 699.4MB). Free memory was 123.4MB in the beginning and 687.3MB in the end (delta: -563.9MB). Peak memory consumption was 518.8MB. Max. memory is 8.0GB. [2022-12-12 16:14:58,348 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 228.12ms. Allocated memory is still 182.5MB. Free memory was 158.5MB in the beginning and 145.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.60ms. Allocated memory is still 182.5MB. Free memory was 145.5MB in the beginning and 142.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 52.83ms. Allocated memory is still 182.5MB. Free memory was 142.8MB in the beginning and 140.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 743.01ms. Allocated memory is still 182.5MB. Free memory was 140.7MB in the beginning and 124.5MB in the end (delta: 16.2MB). Peak memory consumption was 25.6MB. Max. memory is 8.0GB. * TraceAbstraction took 872229.49ms. Allocated memory was 182.5MB in the beginning and 881.9MB in the end (delta: 699.4MB). Free memory was 123.4MB in the beginning and 687.3MB in the end (delta: -563.9MB). Peak memory consumption was 518.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.1s, 160 PlacesBefore, 33 PlacesAfterwards, 166 TransitionsBefore, 28 TransitionsAfterwards, 1518 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 96 TrivialYvCompositions, 31 ConcurrentYvCompositions, 11 ChoiceCompositions, 138 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 838, independent: 820, independent conditional: 820, independent unconditional: 0, dependent: 18, dependent conditional: 18, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 838, independent: 820, independent conditional: 0, independent unconditional: 820, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 838, independent: 820, independent conditional: 0, independent unconditional: 820, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 838, independent: 820, independent conditional: 0, independent unconditional: 820, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 791, independent: 779, independent conditional: 0, independent unconditional: 779, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 791, independent: 779, independent conditional: 0, independent unconditional: 779, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 49, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 838, independent: 41, independent conditional: 0, independent unconditional: 41, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 791, unknown conditional: 0, unknown unconditional: 791] , Statistics on independence cache: Total cache size (in pairs): 1262, Positive cache size: 1250, Positive conditional cache size: 0, Positive unconditional cache size: 1250, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - TimeoutResultAtElement [Line: 106]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 27 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-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 27 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-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 27 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-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 27 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-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: 872.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 151 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 151 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 310 IncrementalHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 4 mSDtfsCounter, 310 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 83 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=227occurred in iteration=4, InterpolantAutomatonStates: 20, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 522 SizeOfPredicates, 11 NumberOfNonLiveVariables, 554 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 15/19 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