/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-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 02:12:51,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 02:12:51,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 02:12:51,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 02:12:51,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 02:12:51,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 02:12:51,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 02:12:51,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 02:12:51,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 02:12:51,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 02:12:51,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 02:12:51,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 02:12:51,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 02:12:51,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 02:12:51,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 02:12:51,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 02:12:51,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 02:12:51,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 02:12:51,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 02:12:51,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 02:12:51,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 02:12:51,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 02:12:51,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 02:12:51,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 02:12:51,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 02:12:51,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 02:12:51,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 02:12:51,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 02:12:51,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 02:12:51,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 02:12:51,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 02:12:51,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 02:12:51,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 02:12:51,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 02:12:51,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 02:12:51,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 02:12:51,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 02:12:51,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 02:12:51,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 02:12:51,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 02:12:51,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 02:12:51,330 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-RepeatedSemanticLbe.epf [2022-12-06 02:12:51,355 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 02:12:51,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 02:12:51,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 02:12:51,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 02:12:51,357 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 02:12:51,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 02:12:51,358 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 02:12:51,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 02:12:51,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 02:12:51,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 02:12:51,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 02:12:51,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 02:12:51,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 02:12:51,359 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 02:12:51,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 02:12:51,359 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 02:12:51,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 02:12:51,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 02:12:51,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 02:12:51,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 02:12:51,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 02:12:51,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 02:12:51,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 02:12:51,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 02:12:51,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 02:12:51,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 02:12:51,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 02:12:51,360 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 02:12:51,361 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 02:12:51,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 02:12:51,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 02:12:51,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 02:12:51,644 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 02:12:51,645 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 02:12:51,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c [2022-12-06 02:12:52,519 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 02:12:52,741 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 02:12:52,741 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c [2022-12-06 02:12:52,749 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2572b21c/6b93a8e49d35442997de1547d0f3d595/FLAG924364724 [2022-12-06 02:12:53,075 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2572b21c/6b93a8e49d35442997de1547d0f3d595 [2022-12-06 02:12:53,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 02:12:53,078 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 02:12:53,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 02:12:53,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 02:12:53,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 02:12:53,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:12:53" (1/1) ... [2022-12-06 02:12:53,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53f6582f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:12:53, skipping insertion in model container [2022-12-06 02:12:53,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:12:53" (1/1) ... [2022-12-06 02:12:53,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 02:12:53,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 02:12:53,245 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:12:53,246 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:12:53,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:12:53,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:12:53,250 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:12:53,252 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:12:53,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:12:53,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:12:53,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:12:53,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:12:53,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:12:53,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:12:53,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:12:53,263 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:12:53,274 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/parallel-min-max-1.wvr.c[3057,3070] [2022-12-06 02:12:53,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 02:12:53,297 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 02:12:53,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:12:53,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:12:53,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:12:53,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:12:53,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:12:53,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:12:53,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:12:53,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:12:53,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:12:53,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:12:53,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:12:53,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:12:53,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:12:53,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:12:53,331 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/parallel-min-max-1.wvr.c[3057,3070] [2022-12-06 02:12:53,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 02:12:53,350 INFO L208 MainTranslator]: Completed translation [2022-12-06 02:12:53,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:12:53 WrapperNode [2022-12-06 02:12:53,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 02:12:53,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 02:12:53,355 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 02:12:53,355 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 02:12:53,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:12:53" (1/1) ... [2022-12-06 02:12:53,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:12:53" (1/1) ... [2022-12-06 02:12:53,398 INFO L138 Inliner]: procedures = 25, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 122 [2022-12-06 02:12:53,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 02:12:53,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 02:12:53,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 02:12:53,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 02:12:53,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:12:53" (1/1) ... [2022-12-06 02:12:53,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:12:53" (1/1) ... [2022-12-06 02:12:53,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:12:53" (1/1) ... [2022-12-06 02:12:53,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:12:53" (1/1) ... [2022-12-06 02:12:53,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:12:53" (1/1) ... [2022-12-06 02:12:53,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:12:53" (1/1) ... [2022-12-06 02:12:53,430 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:12:53" (1/1) ... [2022-12-06 02:12:53,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:12:53" (1/1) ... [2022-12-06 02:12:53,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 02:12:53,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 02:12:53,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 02:12:53,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 02:12:53,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:12:53" (1/1) ... [2022-12-06 02:12:53,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 02:12:53,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 02:12:53,485 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) [2022-12-06 02:12:53,502 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 [2022-12-06 02:12:53,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 02:12:53,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 02:12:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 02:12:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 02:12:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 02:12:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 02:12:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 02:12:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 02:12:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 02:12:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 02:12:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 02:12:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 02:12:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 02:12:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 02:12:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 02:12:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 02:12:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 02:12:53,520 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 02:12:53,636 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 02:12:53,637 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 02:12:53,874 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 02:12:53,961 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 02:12:53,961 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-06 02:12:53,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:12:53 BoogieIcfgContainer [2022-12-06 02:12:53,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 02:12:53,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 02:12:53,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 02:12:53,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 02:12:53,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 02:12:53" (1/3) ... [2022-12-06 02:12:53,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79239117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 02:12:53, skipping insertion in model container [2022-12-06 02:12:53,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:12:53" (2/3) ... [2022-12-06 02:12:53,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79239117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 02:12:53, skipping insertion in model container [2022-12-06 02:12:53,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:12:53" (3/3) ... [2022-12-06 02:12:53,974 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-min-max-1.wvr.c [2022-12-06 02:12:53,995 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 02:12:53,995 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 02:12:53,996 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 02:12:54,042 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 02:12:54,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 162 transitions, 348 flow [2022-12-06 02:12:54,126 INFO L130 PetriNetUnfolder]: 12/159 cut-off events. [2022-12-06 02:12:54,126 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 02:12:54,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 159 events. 12/159 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 98 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 130. Up to 2 conditions per place. [2022-12-06 02:12:54,131 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 162 transitions, 348 flow [2022-12-06 02:12:54,138 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 149 transitions, 316 flow [2022-12-06 02:12:54,140 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:12:54,151 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 149 transitions, 316 flow [2022-12-06 02:12:54,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 149 transitions, 316 flow [2022-12-06 02:12:54,196 INFO L130 PetriNetUnfolder]: 12/149 cut-off events. [2022-12-06 02:12:54,196 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 02:12:54,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 149 events. 12/149 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 98 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 130. Up to 2 conditions per place. [2022-12-06 02:12:54,199 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 149 transitions, 316 flow [2022-12-06 02:12:54,199 INFO L188 LiptonReduction]: Number of co-enabled transitions 1134 [2022-12-06 02:12:59,368 INFO L203 LiptonReduction]: Total number of compositions: 125 [2022-12-06 02:12:59,379 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 02:12:59,399 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=REPEATED_LIPTON_PN, 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;@3c9486e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 02:12:59,399 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 02:12:59,403 INFO L130 PetriNetUnfolder]: 3/23 cut-off events. [2022-12-06 02:12:59,403 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 02:12:59,404 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:12:59,404 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:12:59,404 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)] === [2022-12-06 02:12:59,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:12:59,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1666952016, now seen corresponding path program 1 times [2022-12-06 02:12:59,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:12:59,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352760790] [2022-12-06 02:12:59,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:12:59,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:12:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:12:59,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:12:59,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:12:59,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352760790] [2022-12-06 02:12:59,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352760790] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:12:59,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:12:59,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 02:12:59,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086636265] [2022-12-06 02:12:59,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:12:59,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 02:12:59,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:12:59,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 02:12:59,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 02:12:59,859 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 24 [2022-12-06 02:12:59,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:12:59,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:12:59,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 24 [2022-12-06 02:12:59,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:13:00,015 INFO L130 PetriNetUnfolder]: 282/438 cut-off events. [2022-12-06 02:13:00,015 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2022-12-06 02:13:00,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 944 conditions, 438 events. 282/438 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1302 event pairs, 173 based on Foata normal form. 0/377 useless extension candidates. Maximal degree in co-relation 800. Up to 356 conditions per place. [2022-12-06 02:13:00,028 INFO L137 encePairwiseOnDemand]: 20/24 looper letters, 32 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2022-12-06 02:13:00,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 35 transitions, 164 flow [2022-12-06 02:13:00,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 02:13:00,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 02:13:00,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2022-12-06 02:13:00,050 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.375 [2022-12-06 02:13:00,053 INFO L294 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2022-12-06 02:13:00,054 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:13:00,054 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 35 transitions, 164 flow [2022-12-06 02:13:00,067 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 35 transitions, 164 flow [2022-12-06 02:13:00,068 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:13:00,069 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:13:00,075 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 22 [2022-12-06 02:13:00,075 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 35 transitions, 164 flow [2022-12-06 02:13:00,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:13:00,078 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:13:00,078 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:13:00,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 02:13:00,080 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)] === [2022-12-06 02:13:00,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:13:00,081 INFO L85 PathProgramCache]: Analyzing trace with hash -525137310, now seen corresponding path program 1 times [2022-12-06 02:13:00,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:13:00,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584786522] [2022-12-06 02:13:00,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:13:00,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:13:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:13:00,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 02:13:00,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:13:00,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584786522] [2022-12-06 02:13:00,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584786522] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:13:00,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:13:00,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 02:13:00,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650575340] [2022-12-06 02:13:00,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:13:00,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 02:13:00,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:13:00,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 02:13:00,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 02:13:00,199 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 24 [2022-12-06 02:13:00,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 35 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:13:00,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:13:00,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 24 [2022-12-06 02:13:00,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:13:00,325 INFO L130 PetriNetUnfolder]: 344/532 cut-off events. [2022-12-06 02:13:00,325 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2022-12-06 02:13:00,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1677 conditions, 532 events. 344/532 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1757 event pairs, 173 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 1470. Up to 438 conditions per place. [2022-12-06 02:13:00,333 INFO L137 encePairwiseOnDemand]: 20/24 looper letters, 47 selfloop transitions, 5 changer transitions 0/52 dead transitions. [2022-12-06 02:13:00,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 52 transitions, 345 flow [2022-12-06 02:13:00,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 02:13:00,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 02:13:00,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2022-12-06 02:13:00,336 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.375 [2022-12-06 02:13:00,337 INFO L294 CegarLoopForPetriNet]: 31 programPoint places, 6 predicate places. [2022-12-06 02:13:00,338 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:13:00,339 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 52 transitions, 345 flow [2022-12-06 02:13:00,343 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 52 transitions, 345 flow [2022-12-06 02:13:00,343 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:13:00,344 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:13:00,345 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 8 [2022-12-06 02:13:00,345 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 52 transitions, 345 flow [2022-12-06 02:13:00,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:13:00,345 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:13:00,345 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:13:00,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 02:13:00,346 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)] === [2022-12-06 02:13:00,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:13:00,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1332965929, now seen corresponding path program 1 times [2022-12-06 02:13:00,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:13:00,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729807594] [2022-12-06 02:13:00,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:13:00,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:13:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:13:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 02:13:00,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:13:00,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729807594] [2022-12-06 02:13:00,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729807594] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:13:00,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:13:00,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 02:13:00,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855871466] [2022-12-06 02:13:00,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:13:00,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 02:13:00,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:13:00,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 02:13:00,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 02:13:00,443 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 24 [2022-12-06 02:13:00,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 52 transitions, 345 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:13:00,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:13:00,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 24 [2022-12-06 02:13:00,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:13:00,522 INFO L130 PetriNetUnfolder]: 344/533 cut-off events. [2022-12-06 02:13:00,522 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2022-12-06 02:13:00,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2214 conditions, 533 events. 344/533 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1742 event pairs, 173 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 1940. Up to 533 conditions per place. [2022-12-06 02:13:00,527 INFO L137 encePairwiseOnDemand]: 21/24 looper letters, 51 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2022-12-06 02:13:00,527 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 53 transitions, 457 flow [2022-12-06 02:13:00,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 02:13:00,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 02:13:00,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2022-12-06 02:13:00,530 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3611111111111111 [2022-12-06 02:13:00,530 INFO L294 CegarLoopForPetriNet]: 31 programPoint places, 8 predicate places. [2022-12-06 02:13:00,531 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:13:00,531 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 53 transitions, 457 flow [2022-12-06 02:13:00,535 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 53 transitions, 457 flow [2022-12-06 02:13:00,535 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:13:01,754 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 02:13:01,755 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1225 [2022-12-06 02:13:01,755 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 52 transitions, 449 flow [2022-12-06 02:13:01,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:13:01,755 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:13:01,755 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:13:01,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 02:13:01,756 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)] === [2022-12-06 02:13:01,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:13:01,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1308008012, now seen corresponding path program 1 times [2022-12-06 02:13:01,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:13:01,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966447943] [2022-12-06 02:13:01,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:13:01,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:13:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:13:02,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:13:02,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:13:02,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966447943] [2022-12-06 02:13:02,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966447943] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 02:13:02,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872277241] [2022-12-06 02:13:02,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:13:02,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 02:13:02,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 02:13:02,176 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) [2022-12-06 02:13:02,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 02:13:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:13:02,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 41 conjunts are in the unsatisfiable core [2022-12-06 02:13:02,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 02:13:02,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-06 02:13:02,439 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 [2022-12-06 02:13:02,477 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 [2022-12-06 02:13:02,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 02:13:02,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-12-06 02:13:02,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 02:13:02,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:13:02,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 02:13:02,749 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset))) (and (or (forall ((v_ArrVal_109 (Array Int Int))) (not (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_109) c_~A~0.base) c_~A~0.offset) .cse0))) (<= c_~min~0 .cse0)) (forall ((v_ArrVal_109 (Array Int Int))) (let ((.cse1 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_109) c_~A~0.base) c_~A~0.offset))) (or (<= c_~min~0 .cse1) (< .cse1 .cse0)))))) is different from false [2022-12-06 02:13:13,017 WARN L233 SmtUtils]: Spent 10.20s on a formula simplification. DAG size of input: 36 DAG size of output: 18 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-06 02:13:13,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:13:13,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872277241] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 02:13:13,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 02:13:13,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 8] total 21 [2022-12-06 02:13:13,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060628339] [2022-12-06 02:13:13,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 02:13:13,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-06 02:13:13,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:13:13,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-06 02:13:13,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=321, Unknown=5, NotChecked=38, Total=462 [2022-12-06 02:13:13,021 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 24 [2022-12-06 02:13:13,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 52 transitions, 449 flow. Second operand has 22 states, 21 states have (on average 2.9523809523809526) internal successors, (62), 22 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:13:13,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:13:13,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 24 [2022-12-06 02:13:13,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:13:13,788 INFO L130 PetriNetUnfolder]: 634/983 cut-off events. [2022-12-06 02:13:13,788 INFO L131 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2022-12-06 02:13:13,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5062 conditions, 983 events. 634/983 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3750 event pairs, 93 based on Foata normal form. 3/825 useless extension candidates. Maximal degree in co-relation 4294. Up to 984 conditions per place. [2022-12-06 02:13:13,791 INFO L137 encePairwiseOnDemand]: 16/24 looper letters, 0 selfloop transitions, 0 changer transitions 161/161 dead transitions. [2022-12-06 02:13:13,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 161 transitions, 1703 flow [2022-12-06 02:13:13,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 02:13:13,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 02:13:13,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 149 transitions. [2022-12-06 02:13:13,793 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.36519607843137253 [2022-12-06 02:13:13,793 INFO L294 CegarLoopForPetriNet]: 31 programPoint places, 22 predicate places. [2022-12-06 02:13:13,793 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:13:13,793 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 161 transitions, 1703 flow [2022-12-06 02:13:13,798 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 161 transitions, 1703 flow [2022-12-06 02:13:13,799 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:13:13,799 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:13:13,800 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7 [2022-12-06 02:13:13,800 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 161 transitions, 1703 flow [2022-12-06 02:13:13,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.9523809523809526) internal successors, (62), 22 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 02:13:13,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 02:13:13,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 02:13:13,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 02:13:13,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 02:13:13,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 02:13:14,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 02:13:14,008 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-06 02:13:14,011 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 02:13:14,011 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 02:13:14,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 02:13:14 BasicIcfg [2022-12-06 02:13:14,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 02:13:14,014 INFO L158 Benchmark]: Toolchain (without parser) took 20935.64ms. Allocated memory was 177.2MB in the beginning and 287.3MB in the end (delta: 110.1MB). Free memory was 153.2MB in the beginning and 221.6MB in the end (delta: -68.5MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2022-12-06 02:13:14,014 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 177.2MB. Free memory is still 153.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 02:13:14,014 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.31ms. Allocated memory is still 177.2MB. Free memory was 153.2MB in the beginning and 139.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 02:13:14,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.09ms. Allocated memory is still 177.2MB. Free memory was 139.5MB in the beginning and 137.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 02:13:14,014 INFO L158 Benchmark]: Boogie Preprocessor took 33.84ms. Allocated memory is still 177.2MB. Free memory was 137.4MB in the beginning and 135.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 02:13:14,015 INFO L158 Benchmark]: RCFGBuilder took 529.52ms. Allocated memory is still 177.2MB. Free memory was 135.9MB in the beginning and 114.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-12-06 02:13:14,015 INFO L158 Benchmark]: TraceAbstraction took 20049.15ms. Allocated memory was 177.2MB in the beginning and 287.3MB in the end (delta: 110.1MB). Free memory was 113.8MB in the beginning and 221.6MB in the end (delta: -107.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 02:13:14,016 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 177.2MB. Free memory is still 153.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 273.31ms. Allocated memory is still 177.2MB. Free memory was 153.2MB in the beginning and 139.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.09ms. Allocated memory is still 177.2MB. Free memory was 139.5MB in the beginning and 137.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.84ms. Allocated memory is still 177.2MB. Free memory was 137.4MB in the beginning and 135.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 529.52ms. Allocated memory is still 177.2MB. Free memory was 135.9MB in the beginning and 114.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 20049.15ms. Allocated memory was 177.2MB in the beginning and 287.3MB in the end (delta: 110.1MB). Free memory was 113.8MB in the beginning and 221.6MB in the end (delta: -107.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.2s, 147 PlacesBefore, 31 PlacesAfterwards, 149 TransitionsBefore, 24 TransitionsAfterwards, 1134 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 88 TrivialYvCompositions, 28 ConcurrentYvCompositions, 9 ChoiceCompositions, 125 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 688, independent: 669, independent conditional: 669, independent unconditional: 0, dependent: 19, dependent conditional: 19, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 688, independent: 669, independent conditional: 0, independent unconditional: 669, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 688, independent: 669, independent conditional: 0, independent unconditional: 669, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 688, independent: 669, independent conditional: 0, independent unconditional: 669, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 635, independent: 622, independent conditional: 0, independent unconditional: 622, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 635, independent: 622, independent conditional: 0, independent unconditional: 622, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 32, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 688, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 635, unknown conditional: 0, unknown unconditional: 635] , Statistics on independence cache: Total cache size (in pairs): 958, Positive cache size: 945, Positive conditional cache size: 0, Positive unconditional cache size: 945, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 34 PlacesBefore, 34 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 37 PlacesBefore, 37 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2s, 39 PlacesBefore, 38 PlacesAfterwards, 53 TransitionsBefore, 52 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 53 PlacesBefore, 53 PlacesAfterwards, 161 TransitionsBefore, 161 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 115]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 180 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 366 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 366 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 44 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 504 IncrementalHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 0 mSDtfsCounter, 504 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 43 SyntacticMatches, 7 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1703occurred in iteration=4, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 129 ConstructedInterpolants, 2 QuantifiedInterpolants, 717 SizeOfPredicates, 22 NumberOfNonLiveVariables, 225 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 3/9 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 02:13:14,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...