/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 --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-array-sum2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 00:56:48,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 00:56:48,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 00:56:48,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 00:56:48,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 00:56:48,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 00:56:48,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 00:56:48,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 00:56:48,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 00:56:48,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 00:56:48,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 00:56:48,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 00:56:48,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 00:56:48,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 00:56:48,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 00:56:48,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 00:56:48,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 00:56:48,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 00:56:48,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 00:56:48,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 00:56:48,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 00:56:48,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 00:56:48,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 00:56:48,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 00:56:48,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 00:56:48,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 00:56:48,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 00:56:48,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 00:56:48,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 00:56:48,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 00:56:48,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 00:56:48,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 00:56:48,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 00:56:48,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 00:56:48,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 00:56:48,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 00:56:48,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 00:56:48,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 00:56:48,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 00:56:48,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 00:56:48,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 00:56:48,336 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 [2022-12-12 00:56:48,367 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 00:56:48,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 00:56:48,369 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 00:56:48,369 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 00:56:48,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 00:56:48,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 00:56:48,370 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 00:56:48,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 00:56:48,371 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 00:56:48,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 00:56:48,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 00:56:48,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 00:56:48,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 00:56:48,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 00:56:48,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 00:56:48,372 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 00:56:48,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 00:56:48,372 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 00:56:48,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 00:56:48,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 00:56:48,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 00:56:48,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 00:56:48,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 00:56:48,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 00:56:48,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 00:56:48,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 00:56:48,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 00:56:48,374 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 00:56:48,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 00:56:48,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 00:56:48,374 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 00:56:48,374 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 00:56:48,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 00:56:48,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 00:56:48,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 00:56:48,660 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 00:56:48,660 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 00:56:48,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-array-sum2.wvr.c [2022-12-12 00:56:49,657 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 00:56:49,848 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 00:56:49,849 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum2.wvr.c [2022-12-12 00:56:49,856 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d23d31be/3d5ba0099f64446582cde360d12f9598/FLAG8abc20867 [2022-12-12 00:56:49,869 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d23d31be/3d5ba0099f64446582cde360d12f9598 [2022-12-12 00:56:49,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 00:56:49,872 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 00:56:49,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 00:56:49,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 00:56:49,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 00:56:49,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:56:49" (1/1) ... [2022-12-12 00:56:49,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193b3887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:56:49, skipping insertion in model container [2022-12-12 00:56:49,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:56:49" (1/1) ... [2022-12-12 00:56:49,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 00:56:49,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 00:56:50,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:56:50,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:56:50,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:56:50,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:56:50,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:56:50,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:56:50,070 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-sum2.wvr.c[2599,2612] [2022-12-12 00:56:50,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 00:56:50,100 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 00:56:50,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:56:50,119 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:56:50,121 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:56:50,123 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:56:50,124 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:56:50,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:56:50,138 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-sum2.wvr.c[2599,2612] [2022-12-12 00:56:50,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 00:56:50,158 INFO L208 MainTranslator]: Completed translation [2022-12-12 00:56:50,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:56:50 WrapperNode [2022-12-12 00:56:50,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 00:56:50,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 00:56:50,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 00:56:50,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 00:56:50,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:56:50" (1/1) ... [2022-12-12 00:56:50,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:56:50" (1/1) ... [2022-12-12 00:56:50,218 INFO L138 Inliner]: procedures = 25, calls = 52, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 271 [2022-12-12 00:56:50,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 00:56:50,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 00:56:50,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 00:56:50,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 00:56:50,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:56:50" (1/1) ... [2022-12-12 00:56:50,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:56:50" (1/1) ... [2022-12-12 00:56:50,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:56:50" (1/1) ... [2022-12-12 00:56:50,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:56:50" (1/1) ... [2022-12-12 00:56:50,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:56:50" (1/1) ... [2022-12-12 00:56:50,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:56:50" (1/1) ... [2022-12-12 00:56:50,254 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:56:50" (1/1) ... [2022-12-12 00:56:50,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:56:50" (1/1) ... [2022-12-12 00:56:50,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 00:56:50,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 00:56:50,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 00:56:50,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 00:56:50,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:56:50" (1/1) ... [2022-12-12 00:56:50,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 00:56:50,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 00:56:50,320 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 00:56:50,340 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 00:56:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 00:56:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 00:56:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 00:56:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 00:56:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 00:56:50,367 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 00:56:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 00:56:50,367 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 00:56:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 00:56:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 00:56:50,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 00:56:50,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 00:56:50,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 00:56:50,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 00:56:50,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 00:56:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 00:56:50,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 00:56:50,370 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 00:56:50,475 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 00:56:50,476 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 00:56:50,892 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 00:56:51,094 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 00:56:51,095 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-12 00:56:51,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:56:51 BoogieIcfgContainer [2022-12-12 00:56:51,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 00:56:51,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 00:56:51,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 00:56:51,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 00:56:51,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 12:56:49" (1/3) ... [2022-12-12 00:56:51,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639ecd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:56:51, skipping insertion in model container [2022-12-12 00:56:51,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:56:50" (2/3) ... [2022-12-12 00:56:51,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639ecd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:56:51, skipping insertion in model container [2022-12-12 00:56:51,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:56:51" (3/3) ... [2022-12-12 00:56:51,104 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum2.wvr.c [2022-12-12 00:56:51,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 00:56:51,117 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 00:56:51,117 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 00:56:51,174 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 00:56:51,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 176 transitions, 376 flow [2022-12-12 00:56:51,304 INFO L130 PetriNetUnfolder]: 16/173 cut-off events. [2022-12-12 00:56:51,305 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 00:56:51,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 173 events. 16/173 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 105 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 137. Up to 2 conditions per place. [2022-12-12 00:56:51,311 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 176 transitions, 376 flow [2022-12-12 00:56:51,317 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 163 transitions, 344 flow [2022-12-12 00:56:51,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 00:56:51,328 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;@22134068, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 00:56:51,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 00:56:51,385 INFO L130 PetriNetUnfolder]: 16/162 cut-off events. [2022-12-12 00:56:51,385 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 00:56:51,385 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:56:51,386 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] [2022-12-12 00:56:51,387 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 00:56:51,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:56:51,391 INFO L85 PathProgramCache]: Analyzing trace with hash -78942619, now seen corresponding path program 1 times [2022-12-12 00:56:51,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:56:51,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497884758] [2022-12-12 00:56:51,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:56:51,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:56:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:56:52,023 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 00:56:52,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:56:52,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497884758] [2022-12-12 00:56:52,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497884758] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:56:52,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:56:52,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 00:56:52,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548082309] [2022-12-12 00:56:52,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:56:52,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 00:56:52,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:56:52,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 00:56:52,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-12 00:56:52,062 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 176 [2022-12-12 00:56:52,067 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 163 transitions, 344 flow. Second operand has 6 states, 6 states have (on average 128.33333333333334) internal successors, (770), 6 states have internal predecessors, (770), 0 states have call successors, (0), 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 00:56:52,067 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:56:52,067 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 176 [2022-12-12 00:56:52,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:56:52,334 INFO L130 PetriNetUnfolder]: 55/369 cut-off events. [2022-12-12 00:56:52,334 INFO L131 PetriNetUnfolder]: For 71/72 co-relation queries the response was YES. [2022-12-12 00:56:52,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 369 events. 55/369 cut-off events. For 71/72 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1186 event pairs, 6 based on Foata normal form. 65/391 useless extension candidates. Maximal degree in co-relation 275. Up to 52 conditions per place. [2022-12-12 00:56:52,338 INFO L137 encePairwiseOnDemand]: 151/176 looper letters, 47 selfloop transitions, 6 changer transitions 12/176 dead transitions. [2022-12-12 00:56:52,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 176 transitions, 527 flow [2022-12-12 00:56:52,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 00:56:52,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 00:56:52,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1192 transitions. [2022-12-12 00:56:52,362 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7525252525252525 [2022-12-12 00:56:52,365 INFO L295 CegarLoopForPetriNet]: 157 programPoint places, 8 predicate places. [2022-12-12 00:56:52,366 INFO L82 GeneralOperation]: Start removeDead. Operand has 165 places, 176 transitions, 527 flow [2022-12-12 00:56:52,368 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 154 places, 164 transitions, 476 flow [2022-12-12 00:56:52,370 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 164 transitions, 476 flow [2022-12-12 00:56:52,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.33333333333334) internal successors, (770), 6 states have internal predecessors, (770), 0 states have call successors, (0), 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 00:56:52,370 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:56:52,370 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] [2022-12-12 00:56:52,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 00:56:52,371 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 00:56:52,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:56:52,372 INFO L85 PathProgramCache]: Analyzing trace with hash -154155924, now seen corresponding path program 1 times [2022-12-12 00:56:52,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:56:52,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630986938] [2022-12-12 00:56:52,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:56:52,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:56:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:56:52,659 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 00:56:52,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:56:52,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630986938] [2022-12-12 00:56:52,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630986938] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:56:52,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:56:52,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 00:56:52,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360296453] [2022-12-12 00:56:52,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:56:52,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 00:56:52,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:56:52,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 00:56:52,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-12 00:56:52,667 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 176 [2022-12-12 00:56:52,668 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 164 transitions, 476 flow. Second operand has 7 states, 7 states have (on average 125.57142857142857) internal successors, (879), 7 states have internal predecessors, (879), 0 states have call successors, (0), 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 00:56:52,672 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:56:52,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 176 [2022-12-12 00:56:52,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:56:53,063 INFO L130 PetriNetUnfolder]: 474/1563 cut-off events. [2022-12-12 00:56:53,064 INFO L131 PetriNetUnfolder]: For 784/864 co-relation queries the response was YES. [2022-12-12 00:56:53,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2988 conditions, 1563 events. 474/1563 cut-off events. For 784/864 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 9839 event pairs, 129 based on Foata normal form. 0/1339 useless extension candidates. Maximal degree in co-relation 1186. Up to 432 conditions per place. [2022-12-12 00:56:53,073 INFO L137 encePairwiseOnDemand]: 162/176 looper letters, 120 selfloop transitions, 18 changer transitions 0/245 dead transitions. [2022-12-12 00:56:53,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 245 transitions, 1074 flow [2022-12-12 00:56:53,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-12 00:56:53,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-12 00:56:53,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1441 transitions. [2022-12-12 00:56:53,077 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7443181818181818 [2022-12-12 00:56:53,077 INFO L295 CegarLoopForPetriNet]: 157 programPoint places, 7 predicate places. [2022-12-12 00:56:53,078 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 245 transitions, 1074 flow [2022-12-12 00:56:53,084 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 245 transitions, 1074 flow [2022-12-12 00:56:53,084 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 245 transitions, 1074 flow [2022-12-12 00:56:53,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 125.57142857142857) internal successors, (879), 7 states have internal predecessors, (879), 0 states have call successors, (0), 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 00:56:53,085 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:56:53,085 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] [2022-12-12 00:56:53,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 00:56:53,085 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 00:56:53,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:56:53,086 INFO L85 PathProgramCache]: Analyzing trace with hash -851042244, now seen corresponding path program 1 times [2022-12-12 00:56:53,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:56:53,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206311079] [2022-12-12 00:56:53,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:56:53,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:56:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:56:53,407 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 00:56:53,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:56:53,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206311079] [2022-12-12 00:56:53,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206311079] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:56:53,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:56:53,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:56:53,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309138913] [2022-12-12 00:56:53,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:56:53,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:56:53,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:56:53,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:56:53,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:56:53,411 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 176 [2022-12-12 00:56:53,412 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 245 transitions, 1074 flow. Second operand has 10 states, 10 states have (on average 96.5) internal successors, (965), 10 states have internal predecessors, (965), 0 states have call successors, (0), 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 00:56:53,412 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:56:53,412 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 176 [2022-12-12 00:56:53,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:56:54,099 INFO L130 PetriNetUnfolder]: 1290/2931 cut-off events. [2022-12-12 00:56:54,099 INFO L131 PetriNetUnfolder]: For 2635/3258 co-relation queries the response was YES. [2022-12-12 00:56:54,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7316 conditions, 2931 events. 1290/2931 cut-off events. For 2635/3258 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 20148 event pairs, 741 based on Foata normal form. 2/2397 useless extension candidates. Maximal degree in co-relation 4185. Up to 1438 conditions per place. [2022-12-12 00:56:54,121 INFO L137 encePairwiseOnDemand]: 159/176 looper letters, 182 selfloop transitions, 24 changer transitions 0/287 dead transitions. [2022-12-12 00:56:54,122 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 287 transitions, 1658 flow [2022-12-12 00:56:54,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 00:56:54,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 00:56:54,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1705 transitions. [2022-12-12 00:56:54,151 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5698529411764706 [2022-12-12 00:56:54,153 INFO L295 CegarLoopForPetriNet]: 157 programPoint places, 23 predicate places. [2022-12-12 00:56:54,153 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 287 transitions, 1658 flow [2022-12-12 00:56:54,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 287 transitions, 1658 flow [2022-12-12 00:56:54,176 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 287 transitions, 1658 flow [2022-12-12 00:56:54,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 96.5) internal successors, (965), 10 states have internal predecessors, (965), 0 states have call successors, (0), 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 00:56:54,177 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:56:54,177 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] [2022-12-12 00:56:54,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 00:56:54,177 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 00:56:54,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:56:54,178 INFO L85 PathProgramCache]: Analyzing trace with hash 873603146, now seen corresponding path program 1 times [2022-12-12 00:56:54,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:56:54,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101487642] [2022-12-12 00:56:54,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:56:54,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:56:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:56:54,472 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 00:56:54,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:56:54,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101487642] [2022-12-12 00:56:54,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101487642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:56:54,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:56:54,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:56:54,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799370793] [2022-12-12 00:56:54,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:56:54,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:56:54,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:56:54,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:56:54,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:56:54,479 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 176 [2022-12-12 00:56:54,480 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 287 transitions, 1658 flow. Second operand has 10 states, 10 states have (on average 97.4) internal successors, (974), 10 states have internal predecessors, (974), 0 states have call successors, (0), 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 00:56:54,480 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:56:54,480 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 176 [2022-12-12 00:56:54,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:56:55,200 INFO L130 PetriNetUnfolder]: 1364/2775 cut-off events. [2022-12-12 00:56:55,200 INFO L131 PetriNetUnfolder]: For 4060/5286 co-relation queries the response was YES. [2022-12-12 00:56:55,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8950 conditions, 2775 events. 1364/2775 cut-off events. For 4060/5286 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 17426 event pairs, 729 based on Foata normal form. 0/2241 useless extension candidates. Maximal degree in co-relation 7241. Up to 1662 conditions per place. [2022-12-12 00:56:55,218 INFO L137 encePairwiseOnDemand]: 158/176 looper letters, 96 selfloop transitions, 11 changer transitions 88/275 dead transitions. [2022-12-12 00:56:55,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 275 transitions, 1960 flow [2022-12-12 00:56:55,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-12 00:56:55,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-12 00:56:55,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1799 transitions. [2022-12-12 00:56:55,222 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5678661616161617 [2022-12-12 00:56:55,223 INFO L295 CegarLoopForPetriNet]: 157 programPoint places, 40 predicate places. [2022-12-12 00:56:55,223 INFO L82 GeneralOperation]: Start removeDead. Operand has 197 places, 275 transitions, 1960 flow [2022-12-12 00:56:55,234 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 187 transitions, 1145 flow [2022-12-12 00:56:55,235 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 187 transitions, 1145 flow [2022-12-12 00:56:55,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 97.4) internal successors, (974), 10 states have internal predecessors, (974), 0 states have call successors, (0), 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 00:56:55,235 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:56:55,235 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] [2022-12-12 00:56:55,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 00:56:55,236 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 00:56:55,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:56:55,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1348276948, now seen corresponding path program 1 times [2022-12-12 00:56:55,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:56:55,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779978237] [2022-12-12 00:56:55,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:56:55,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:56:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:56:55,412 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 00:56:55,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:56:55,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779978237] [2022-12-12 00:56:55,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779978237] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 00:56:55,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076422633] [2022-12-12 00:56:55,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:56:55,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 00:56:55,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 00:56:55,416 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 00:56:55,417 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 00:56:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:56:55,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-12 00:56:55,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 00:56:55,739 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 00:56:55,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 00:56:55,955 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 00:56:55,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076422633] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 00:56:55,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 00:56:55,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 18 [2022-12-12 00:56:55,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898667201] [2022-12-12 00:56:55,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:56:55,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 00:56:55,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:56:55,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 00:56:55,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-12-12 00:56:55,957 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 176 [2022-12-12 00:56:55,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 187 transitions, 1145 flow. Second operand has 9 states, 9 states have (on average 118.66666666666667) internal successors, (1068), 9 states have internal predecessors, (1068), 0 states have call successors, (0), 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 00:56:55,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:56:55,958 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 176 [2022-12-12 00:56:55,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:56:56,414 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([770] L68-4-->L69: Formula: (< |v_thread3Thread1of1ForFork0_~i~2#1_3| v_~N~0_4) InVars {thread3Thread1of1ForFork0_~i~2#1=|v_thread3Thread1of1ForFork0_~i~2#1_3|, ~N~0=v_~N~0_4} OutVars{thread3Thread1of1ForFork0_~i~2#1=|v_thread3Thread1of1ForFork0_~i~2#1_3|, ~N~0=v_~N~0_4} AuxVars[] AssignedVars[][157], [1125#(and (< |thread2Thread1of1ForFork2_~i~1#1| ~N~0) (<= 1 ~N~0) (<= (+ |thread3Thread1of1ForFork0_~i~2#1| 1) ~N~0)), 18#L91-4true, 74#L69true, 78#L48-3true, thread2Thread1of1ForFork2InUse, 221#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 257#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), thread1Thread1of1ForFork1InUse, 13#L59true, thread3Thread1of1ForFork0InUse, 173#true, 197#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|))]) [2022-12-12 00:56:56,415 INFO L382 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-12-12 00:56:56,415 INFO L385 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-12-12 00:56:56,415 INFO L385 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-12-12 00:56:56,415 INFO L385 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-12-12 00:56:56,415 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([771] L68-4-->L68-5: Formula: (not (< |v_thread3Thread1of1ForFork0_~i~2#1_5| v_~N~0_3)) InVars {thread3Thread1of1ForFork0_~i~2#1=|v_thread3Thread1of1ForFork0_~i~2#1_5|, ~N~0=v_~N~0_3} OutVars{thread3Thread1of1ForFork0_~i~2#1=|v_thread3Thread1of1ForFork0_~i~2#1_5|, ~N~0=v_~N~0_3} AuxVars[] AssignedVars[][158], [69#L68-5true, 18#L91-4true, 78#L48-3true, thread2Thread1of1ForFork2InUse, 283#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 |thread3Thread1of1ForFork0_~i~2#1|) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 221#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), thread1Thread1of1ForFork1InUse, 13#L59true, 1117#(and (< |thread2Thread1of1ForFork2_~i~1#1| ~N~0) (<= 1 ~N~0)), thread3Thread1of1ForFork0InUse, 173#true, 197#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|))]) [2022-12-12 00:56:56,415 INFO L382 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-12-12 00:56:56,415 INFO L385 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-12-12 00:56:56,415 INFO L385 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-12-12 00:56:56,415 INFO L385 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-12-12 00:56:56,603 INFO L130 PetriNetUnfolder]: 1920/3559 cut-off events. [2022-12-12 00:56:56,603 INFO L131 PetriNetUnfolder]: For 6397/10389 co-relation queries the response was YES. [2022-12-12 00:56:56,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14431 conditions, 3559 events. 1920/3559 cut-off events. For 6397/10389 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 23927 event pairs, 404 based on Foata normal form. 9/2876 useless extension candidates. Maximal degree in co-relation 13514. Up to 2539 conditions per place. [2022-12-12 00:56:56,636 INFO L137 encePairwiseOnDemand]: 165/176 looper letters, 181 selfloop transitions, 18 changer transitions 1/300 dead transitions. [2022-12-12 00:56:56,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 300 transitions, 2642 flow [2022-12-12 00:56:56,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-12 00:56:56,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-12 00:56:56,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1361 transitions. [2022-12-12 00:56:56,639 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.702995867768595 [2022-12-12 00:56:56,641 INFO L295 CegarLoopForPetriNet]: 157 programPoint places, 23 predicate places. [2022-12-12 00:56:56,641 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 300 transitions, 2642 flow [2022-12-12 00:56:56,662 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 299 transitions, 2627 flow [2022-12-12 00:56:56,662 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 299 transitions, 2627 flow [2022-12-12 00:56:56,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 118.66666666666667) internal successors, (1068), 9 states have internal predecessors, (1068), 0 states have call successors, (0), 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 00:56:56,663 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:56:56,663 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] [2022-12-12 00:56:56,672 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 00:56:56,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 00:56:56,871 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 00:56:56,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:56:56,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1294025870, now seen corresponding path program 2 times [2022-12-12 00:56:56,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:56:56,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653653199] [2022-12-12 00:56:56,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:56:56,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:56:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:56:57,003 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 00:56:57,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:56:57,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653653199] [2022-12-12 00:56:57,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653653199] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 00:56:57,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86922547] [2022-12-12 00:56:57,004 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-12 00:56:57,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 00:56:57,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 00:56:57,005 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 00:56:57,007 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 00:56:57,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-12 00:56:57,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 00:56:57,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-12 00:56:57,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 00:56:57,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 00:56:57,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 00:56:57,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86922547] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:56:57,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 00:56:57,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-12-12 00:56:57,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876182578] [2022-12-12 00:56:57,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:56:57,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 00:56:57,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:56:57,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 00:56:57,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-12-12 00:56:57,284 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 176 [2022-12-12 00:56:57,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 299 transitions, 2627 flow. Second operand has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 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 00:56:57,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:56:57,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 176 [2022-12-12 00:56:57,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:56:57,901 INFO L130 PetriNetUnfolder]: 1921/3591 cut-off events. [2022-12-12 00:56:57,901 INFO L131 PetriNetUnfolder]: For 8345/10529 co-relation queries the response was YES. [2022-12-12 00:56:57,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17020 conditions, 3591 events. 1921/3591 cut-off events. For 8345/10529 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 23795 event pairs, 360 based on Foata normal form. 18/2959 useless extension candidates. Maximal degree in co-relation 13152. Up to 2574 conditions per place. [2022-12-12 00:56:57,924 INFO L137 encePairwiseOnDemand]: 167/176 looper letters, 201 selfloop transitions, 16 changer transitions 0/330 dead transitions. [2022-12-12 00:56:57,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 330 transitions, 3429 flow [2022-12-12 00:56:57,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 00:56:57,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 00:56:57,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 938 transitions. [2022-12-12 00:56:57,927 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6661931818181818 [2022-12-12 00:56:57,927 INFO L295 CegarLoopForPetriNet]: 157 programPoint places, 30 predicate places. [2022-12-12 00:56:57,928 INFO L82 GeneralOperation]: Start removeDead. Operand has 187 places, 330 transitions, 3429 flow [2022-12-12 00:56:57,950 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 187 places, 330 transitions, 3429 flow [2022-12-12 00:56:57,951 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 330 transitions, 3429 flow [2022-12-12 00:56:57,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 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 00:56:57,951 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:56:57,951 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] [2022-12-12 00:56:57,957 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 00:56:58,156 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,SelfDestructingSolverStorable5 [2022-12-12 00:56:58,157 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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 00:56:58,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:56:58,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1061645104, now seen corresponding path program 1 times [2022-12-12 00:56:58,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:56:58,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248855034] [2022-12-12 00:56:58,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:56:58,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:56:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:56:58,301 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 00:56:58,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:56:58,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248855034] [2022-12-12 00:56:58,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248855034] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 00:56:58,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290186973] [2022-12-12 00:56:58,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:56:58,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 00:56:58,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 00:56:58,305 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 00:56:58,308 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 00:56:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:56:58,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-12 00:56:58,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 00:56:58,503 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 00:56:58,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 00:56:58,646 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 00:56:58,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290186973] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 00:56:58,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 00:56:58,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-12-12 00:56:58,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089911118] [2022-12-12 00:56:58,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:56:58,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 00:56:58,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:56:58,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 00:56:58,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-12-12 00:56:58,648 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 176 [2022-12-12 00:56:58,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 330 transitions, 3429 flow. Second operand has 7 states, 7 states have (on average 126.42857142857143) internal successors, (885), 7 states have internal predecessors, (885), 0 states have call successors, (0), 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 00:56:58,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:56:58,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 176 [2022-12-12 00:56:58,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:56:59,056 INFO L130 PetriNetUnfolder]: 1485/2802 cut-off events. [2022-12-12 00:56:59,056 INFO L131 PetriNetUnfolder]: For 9226/11758 co-relation queries the response was YES. [2022-12-12 00:56:59,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14638 conditions, 2802 events. 1485/2802 cut-off events. For 9226/11758 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 17195 event pairs, 172 based on Foata normal form. 53/2471 useless extension candidates. Maximal degree in co-relation 12362. Up to 1998 conditions per place. [2022-12-12 00:56:59,074 INFO L137 encePairwiseOnDemand]: 168/176 looper letters, 205 selfloop transitions, 18 changer transitions 0/353 dead transitions. [2022-12-12 00:56:59,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 353 transitions, 4103 flow [2022-12-12 00:56:59,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 00:56:59,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 00:56:59,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 899 transitions. [2022-12-12 00:56:59,076 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7297077922077922 [2022-12-12 00:56:59,076 INFO L295 CegarLoopForPetriNet]: 157 programPoint places, 36 predicate places. [2022-12-12 00:56:59,076 INFO L82 GeneralOperation]: Start removeDead. Operand has 193 places, 353 transitions, 4103 flow [2022-12-12 00:56:59,091 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 193 places, 353 transitions, 4103 flow [2022-12-12 00:56:59,092 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 353 transitions, 4103 flow [2022-12-12 00:56:59,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.42857142857143) internal successors, (885), 7 states have internal predecessors, (885), 0 states have call successors, (0), 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 00:56:59,092 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:56:59,092 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] [2022-12-12 00:56:59,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-12 00:56:59,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 00:56:59,297 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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 00:56:59,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:56:59,298 INFO L85 PathProgramCache]: Analyzing trace with hash 199336329, now seen corresponding path program 1 times [2022-12-12 00:56:59,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:56:59,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351377231] [2022-12-12 00:56:59,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:56:59,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:56:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:57:02,569 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 00:57:02,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:57:02,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351377231] [2022-12-12 00:57:02,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351377231] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 00:57:02,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506140931] [2022-12-12 00:57:02,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:57:02,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 00:57:02,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 00:57:02,571 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) [2022-12-12 00:57:02,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-12 00:57:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:57:02,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 96 conjunts are in the unsatisfiable core [2022-12-12 00:57:02,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 00:57:03,074 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 [2022-12-12 00:57:03,314 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 15 treesize of output 11 [2022-12-12 00:57:03,949 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-12 00:57:03,949 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 11 treesize of output 11 [2022-12-12 00:57:04,242 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 [2022-12-12 00:57:04,931 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 00:57:05,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:57:05,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:57:05,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 25 [2022-12-12 00:57:05,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:57:05,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 00:57:05,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 25 [2022-12-12 00:57:05,579 INFO L321 Elim1Store]: treesize reduction 14, result has 33.3 percent of original size [2022-12-12 00:57:05,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 17 [2022-12-12 00:57:05,636 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 00:57:05,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 00:57:05,814 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (* 4 c_~M~0))) (let ((.cse1 (+ c_~A~0.offset .cse4)) (.cse2 (+ .cse4 c_~B~0.offset))) (and (forall ((v_ArrVal_232 (Array Int Int))) (<= c_~res1~0 (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ (select (select .cse0 c_~A~0.base) .cse1) c_~res2~0 (select (select .cse0 c_~B~0.base) .cse2))))) (forall ((v_ArrVal_232 (Array Int Int))) (< (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ (select (select .cse3 c_~A~0.base) .cse1) c_~res2~0 (select (select .cse3 c_~B~0.base) .cse2))) (+ c_~res1~0 1)))))) is different from false [2022-12-12 00:57:05,927 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (* 4 c_~M~0))) (let ((.cse1 (+ .cse4 c_~B~0.offset)) (.cse2 (+ c_~A~0.offset .cse4))) (and (forall ((v_ArrVal_232 (Array Int Int)) (v_ArrVal_231 (Array Int Int))) (< (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_231) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ c_~res2~0 (select (select .cse0 c_~B~0.base) .cse1) (select (select .cse0 c_~A~0.base) .cse2))) (+ c_~res1~0 1))) (forall ((v_ArrVal_232 (Array Int Int)) (v_ArrVal_231 (Array Int Int))) (<= c_~res1~0 (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_231) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ c_~res2~0 (select (select .cse3 c_~B~0.base) .cse1) (select (select .cse3 c_~A~0.base) .cse2)))))))) is different from false [2022-12-12 00:57:06,002 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse6 (* 4 c_~M~0)) (.cse7 (* |c_thread1Thread1of1ForFork1_~i~0#1| 4))) (let ((.cse3 (select (select |c_#memory_int| c_~A~0.base) (+ .cse7 c_~A~0.offset))) (.cse4 (select (select |c_#memory_int| c_~B~0.base) (+ .cse7 c_~B~0.offset))) (.cse1 (+ .cse6 c_~B~0.offset)) (.cse2 (+ c_~A~0.offset .cse6))) (and (forall ((v_ArrVal_232 (Array Int Int)) (v_ArrVal_231 (Array Int Int))) (< (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_231) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ c_~res2~0 (select (select .cse0 c_~B~0.base) .cse1) (select (select .cse0 c_~A~0.base) .cse2))) (+ .cse3 .cse4 c_~res1~0 1))) (forall ((v_ArrVal_232 (Array Int Int)) (v_ArrVal_231 (Array Int Int))) (<= (+ .cse3 .cse4 c_~res1~0) (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_231) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ c_~res2~0 (select (select .cse5 c_~B~0.base) .cse1) (select (select .cse5 c_~A~0.base) .cse2)))))))) is different from false [2022-12-12 00:57:06,023 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse6 (* 4 c_~M~0))) (let ((.cse3 (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset)) (.cse4 (select (select |c_#memory_int| c_~B~0.base) c_~B~0.offset)) (.cse1 (+ .cse6 c_~B~0.offset)) (.cse2 (+ c_~A~0.offset .cse6))) (and (forall ((v_ArrVal_232 (Array Int Int)) (v_ArrVal_231 (Array Int Int))) (< (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_231) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ c_~res2~0 (select (select .cse0 c_~B~0.base) .cse1) (select (select .cse0 c_~A~0.base) .cse2))) (+ .cse3 .cse4 c_~res1~0 1))) (forall ((v_ArrVal_232 (Array Int Int)) (v_ArrVal_231 (Array Int Int))) (<= (+ .cse3 .cse4 c_~res1~0) (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_231) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ c_~res2~0 (select (select .cse5 c_~B~0.base) .cse1) (select (select .cse5 c_~A~0.base) .cse2)))))))) is different from false [2022-12-12 00:57:06,045 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse6 (* 4 c_~M~0))) (let ((.cse2 (+ c_~A~0.offset .cse6)) (.cse3 (+ .cse6 c_~B~0.offset))) (and (forall ((v_ArrVal_230 (Array Int Int)) (v_ArrVal_232 (Array Int Int)) (v_ArrVal_231 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_230))) (<= (+ (select (select .cse0 c_~B~0.base) c_~B~0.offset) (select (select .cse0 c_~A~0.base) c_~A~0.offset) c_~res1~0) (let ((.cse1 (store (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_231) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ (select (select .cse1 c_~A~0.base) .cse2) c_~res2~0 (select (select .cse1 c_~B~0.base) .cse3)))))) (forall ((v_ArrVal_230 (Array Int Int)) (v_ArrVal_232 (Array Int Int)) (v_ArrVal_231 (Array Int Int))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_230))) (< (let ((.cse4 (store (store .cse5 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_231) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_232))) (+ (select (select .cse4 c_~A~0.base) .cse2) c_~res2~0 (select (select .cse4 c_~B~0.base) .cse3))) (+ (select (select .cse5 c_~B~0.base) c_~B~0.offset) (select (select .cse5 c_~A~0.base) c_~A~0.offset) c_~res1~0 1))))))) is different from false [2022-12-12 00:57:50,520 INFO L321 Elim1Store]: treesize reduction 23, result has 60.3 percent of original size [2022-12-12 00:57:50,521 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 2 case distinctions, treesize of input 186 treesize of output 93 [2022-12-12 00:57:50,618 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 00:57:50,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 39440 treesize of output 33416 [2022-12-12 00:57:50,831 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 00:57:50,832 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 33270 treesize of output 29746 [2022-12-12 00:57:51,015 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 00:57:51,017 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 29686 treesize of output 23550 [2022-12-12 00:57:51,195 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 00:57:51,197 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 23542 treesize of output 20478 Received shutdown request... [2022-12-12 01:11:16,946 WARN L249 SmtUtils]: Removed 1 from assertion stack [2022-12-12 01:11:16,948 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 01:11:16,958 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 01:11:16,961 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 [2022-12-12 01:11:16,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-12 01:11:17,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 01:11:17,161 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 142 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 ATOM-1 context. [2022-12-12 01:11:17,163 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 01:11:17,163 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 01:11:17,163 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 01:11:17,163 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-12-12 01:11:17,168 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 01:11:17,168 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 01:11:17,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 01:11:17 BasicIcfg [2022-12-12 01:11:17,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 01:11:17,171 INFO L158 Benchmark]: Toolchain (without parser) took 867299.94ms. Allocated memory was 203.4MB in the beginning and 896.5MB in the end (delta: 693.1MB). Free memory was 168.3MB in the beginning and 413.9MB in the end (delta: -245.6MB). Peak memory consumption was 632.8MB. Max. memory is 8.0GB. [2022-12-12 01:11:17,172 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 203.4MB. Free memory is still 180.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 01:11:17,174 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.53ms. Allocated memory is still 203.4MB. Free memory was 168.3MB in the beginning and 155.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 01:11:17,174 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.75ms. Allocated memory is still 203.4MB. Free memory was 155.7MB in the beginning and 153.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 01:11:17,174 INFO L158 Benchmark]: Boogie Preprocessor took 39.39ms. Allocated memory is still 203.4MB. Free memory was 153.1MB in the beginning and 151.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 01:11:17,175 INFO L158 Benchmark]: RCFGBuilder took 837.69ms. Allocated memory is still 203.4MB. Free memory was 151.0MB in the beginning and 93.9MB in the end (delta: 57.1MB). Peak memory consumption was 57.7MB. Max. memory is 8.0GB. [2022-12-12 01:11:17,175 INFO L158 Benchmark]: TraceAbstraction took 866071.85ms. Allocated memory was 203.4MB in the beginning and 896.5MB in the end (delta: 693.1MB). Free memory was 92.8MB in the beginning and 413.9MB in the end (delta: -321.1MB). Peak memory consumption was 557.3MB. Max. memory is 8.0GB. [2022-12-12 01:11:17,178 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 203.4MB. Free memory is still 180.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 284.53ms. Allocated memory is still 203.4MB. Free memory was 168.3MB in the beginning and 155.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.75ms. Allocated memory is still 203.4MB. Free memory was 155.7MB in the beginning and 153.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.39ms. Allocated memory is still 203.4MB. Free memory was 153.1MB in the beginning and 151.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 837.69ms. Allocated memory is still 203.4MB. Free memory was 151.0MB in the beginning and 93.9MB in the end (delta: 57.1MB). Peak memory consumption was 57.7MB. Max. memory is 8.0GB. * TraceAbstraction took 866071.85ms. Allocated memory was 203.4MB in the beginning and 896.5MB in the end (delta: 693.1MB). Free memory was 92.8MB in the beginning and 413.9MB in the end (delta: -321.1MB). Peak memory consumption was 557.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 142 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 ATOM-1 context. - TimeoutResultAtElement [Line: 90]: 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 142 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 ATOM-1 context. - TimeoutResultAtElement [Line: 89]: 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 142 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 ATOM-1 context. - TimeoutResultAtElement [Line: 91]: 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 142 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 ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 191 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 866.0s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1384 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1384 mSDsluCounter, 626 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 436 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1156 IncrementalHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 190 mSDtfsCounter, 1156 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 791 GetRequests, 669 SyntacticMatches, 4 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4103occurred in iteration=7, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 881 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1299 NumberOfCodeBlocks, 1280 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1559 ConstructedInterpolants, 0 QuantifiedInterpolants, 4256 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1018 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 22/27 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