/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 00:26:02,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 00:26:02,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 00:26:02,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 00:26:02,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 00:26:02,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 00:26:02,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 00:26:02,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 00:26:02,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 00:26:02,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 00:26:02,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 00:26:02,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 00:26:02,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 00:26:02,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 00:26:02,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 00:26:02,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 00:26:02,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 00:26:02,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 00:26:02,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 00:26:02,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 00:26:02,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 00:26:02,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 00:26:02,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 00:26:02,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 00:26:02,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 00:26:02,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 00:26:02,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 00:26:02,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 00:26:02,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 00:26:02,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 00:26:02,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 00:26:02,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 00:26:02,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 00:26:02,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 00:26:02,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 00:26:02,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 00:26:02,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 00:26:02,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 00:26:02,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 00:26:02,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 00:26:02,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 00:26:02,626 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 00:26:02,641 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 00:26:02,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 00:26:02,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 00:26:02,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 00:26:02,642 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 00:26:02,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 00:26:02,642 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 00:26:02,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 00:26:02,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 00:26:02,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 00:26:02,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 00:26:02,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 00:26:02,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 00:26:02,643 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 00:26:02,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 00:26:02,644 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 00:26:02,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 00:26:02,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 00:26:02,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 00:26:02,644 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 00:26:02,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 00:26:02,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:26:02,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 00:26:02,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 00:26:02,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 00:26:02,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 00:26:02,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 00:26:02,645 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 00:26:02,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 00:26:02,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 00:26:02,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 00:26:02,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 00:26:02,902 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 00:26:02,902 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 00:26:02,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2022-12-06 00:26:03,905 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 00:26:04,069 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 00:26:04,069 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2022-12-06 00:26:04,073 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c6e834e/00ea0b5ec2884fa090f2ee1940baf977/FLAG65c4cb47f [2022-12-06 00:26:04,083 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c6e834e/00ea0b5ec2884fa090f2ee1940baf977 [2022-12-06 00:26:04,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 00:26:04,086 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 00:26:04,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 00:26:04,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 00:26:04,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 00:26:04,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:26:04" (1/1) ... [2022-12-06 00:26:04,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f028a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:04, skipping insertion in model container [2022-12-06 00:26:04,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:26:04" (1/1) ... [2022-12-06 00:26:04,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 00:26:04,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 00:26:04,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:26:04,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:26:04,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:26:04,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:26:04,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:26:04,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:26:04,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:26:04,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:26:04,232 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-simple-array-sum.wvr.c[2690,2703] [2022-12-06 00:26:04,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:26:04,257 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 00:26:04,274 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:26:04,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:26:04,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:26:04,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:26:04,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:26:04,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:26:04,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:26:04,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:26:04,280 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-simple-array-sum.wvr.c[2690,2703] [2022-12-06 00:26:04,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:26:04,293 INFO L208 MainTranslator]: Completed translation [2022-12-06 00:26:04,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:04 WrapperNode [2022-12-06 00:26:04,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 00:26:04,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 00:26:04,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 00:26:04,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 00:26:04,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:04" (1/1) ... [2022-12-06 00:26:04,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:04" (1/1) ... [2022-12-06 00:26:04,339 INFO L138 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 121 [2022-12-06 00:26:04,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 00:26:04,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 00:26:04,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 00:26:04,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 00:26:04,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:04" (1/1) ... [2022-12-06 00:26:04,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:04" (1/1) ... [2022-12-06 00:26:04,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:04" (1/1) ... [2022-12-06 00:26:04,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:04" (1/1) ... [2022-12-06 00:26:04,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:04" (1/1) ... [2022-12-06 00:26:04,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:04" (1/1) ... [2022-12-06 00:26:04,371 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:04" (1/1) ... [2022-12-06 00:26:04,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:04" (1/1) ... [2022-12-06 00:26:04,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 00:26:04,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 00:26:04,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 00:26:04,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 00:26:04,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:04" (1/1) ... [2022-12-06 00:26:04,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:26:04,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:26:04,411 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 00:26:04,429 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 00:26:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 00:26:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 00:26:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 00:26:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 00:26:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 00:26:04,441 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 00:26:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 00:26:04,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 00:26:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 00:26:04,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 00:26:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 00:26:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 00:26:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 00:26:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 00:26:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 00:26:04,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 00:26:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 00:26:04,444 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 00:26:04,542 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 00:26:04,543 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 00:26:04,770 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 00:26:04,792 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 00:26:04,792 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-06 00:26:04,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:26:04 BoogieIcfgContainer [2022-12-06 00:26:04,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 00:26:04,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 00:26:04,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 00:26:04,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 00:26:04,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 12:26:04" (1/3) ... [2022-12-06 00:26:04,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f8cc28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:26:04, skipping insertion in model container [2022-12-06 00:26:04,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:04" (2/3) ... [2022-12-06 00:26:04,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f8cc28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:26:04, skipping insertion in model container [2022-12-06 00:26:04,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:26:04" (3/3) ... [2022-12-06 00:26:04,814 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-simple-array-sum.wvr.c [2022-12-06 00:26:04,826 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 00:26:04,826 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 00:26:04,826 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 00:26:04,936 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 00:26:04,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 171 transitions, 366 flow [2022-12-06 00:26:05,086 INFO L130 PetriNetUnfolder]: 16/168 cut-off events. [2022-12-06 00:26:05,087 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 00:26:05,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 168 events. 16/168 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 115 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 129. Up to 3 conditions per place. [2022-12-06 00:26:05,092 INFO L82 GeneralOperation]: Start removeDead. Operand has 165 places, 171 transitions, 366 flow [2022-12-06 00:26:05,098 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 152 places, 158 transitions, 334 flow [2022-12-06 00:26:05,100 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:26:05,125 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 158 transitions, 334 flow [2022-12-06 00:26:05,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 158 transitions, 334 flow [2022-12-06 00:26:05,169 INFO L130 PetriNetUnfolder]: 16/158 cut-off events. [2022-12-06 00:26:05,169 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 00:26:05,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 158 events. 16/158 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 129. Up to 3 conditions per place. [2022-12-06 00:26:05,174 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 158 transitions, 334 flow [2022-12-06 00:26:05,175 INFO L188 LiptonReduction]: Number of co-enabled transitions 1720 [2022-12-06 00:26:10,346 INFO L203 LiptonReduction]: Total number of compositions: 129 [2022-12-06 00:26:10,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 00:26:10,360 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;@34cdf7c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 00:26:10,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 00:26:10,365 INFO L130 PetriNetUnfolder]: 6/28 cut-off events. [2022-12-06 00:26:10,365 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 00:26:10,365 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:26:10,366 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 00:26:10,366 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 00:26:10,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:26:10,369 INFO L85 PathProgramCache]: Analyzing trace with hash -662271631, now seen corresponding path program 1 times [2022-12-06 00:26:10,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:26:10,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029613764] [2022-12-06 00:26:10,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:26:10,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:26:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:26:11,013 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 00:26:11,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:26:11,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029613764] [2022-12-06 00:26:11,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029613764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:26:11,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:26:11,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 00:26:11,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564912020] [2022-12-06 00:26:11,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:26:11,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 00:26:11,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:26:11,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 00:26:11,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 00:26:11,040 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 29 [2022-12-06 00:26:11,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:26:11,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:26:11,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 29 [2022-12-06 00:26:11,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:26:11,230 INFO L130 PetriNetUnfolder]: 853/1153 cut-off events. [2022-12-06 00:26:11,230 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2022-12-06 00:26:11,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2389 conditions, 1153 events. 853/1153 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 4243 event pairs, 310 based on Foata normal form. 1/684 useless extension candidates. Maximal degree in co-relation 1073. Up to 740 conditions per place. [2022-12-06 00:26:11,241 INFO L137 encePairwiseOnDemand]: 23/29 looper letters, 44 selfloop transitions, 5 changer transitions 1/53 dead transitions. [2022-12-06 00:26:11,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 53 transitions, 242 flow [2022-12-06 00:26:11,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 00:26:11,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 00:26:11,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 63 transitions. [2022-12-06 00:26:11,250 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5431034482758621 [2022-12-06 00:26:11,251 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 76 flow. Second operand 4 states and 63 transitions. [2022-12-06 00:26:11,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 53 transitions, 242 flow [2022-12-06 00:26:11,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 53 transitions, 218 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-06 00:26:11,258 INFO L231 Difference]: Finished difference. Result has 32 places, 33 transitions, 98 flow [2022-12-06 00:26:11,259 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=98, PETRI_PLACES=32, PETRI_TRANSITIONS=33} [2022-12-06 00:26:11,265 INFO L294 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2022-12-06 00:26:11,265 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:26:11,266 INFO L89 Accepts]: Start accepts. Operand has 32 places, 33 transitions, 98 flow [2022-12-06 00:26:11,268 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:26:11,268 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:26:11,269 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 33 transitions, 98 flow [2022-12-06 00:26:11,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 33 transitions, 98 flow [2022-12-06 00:26:11,280 INFO L130 PetriNetUnfolder]: 11/56 cut-off events. [2022-12-06 00:26:11,280 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 00:26:11,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 56 events. 11/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 121 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 36. Up to 6 conditions per place. [2022-12-06 00:26:11,281 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 33 transitions, 98 flow [2022-12-06 00:26:11,281 INFO L188 LiptonReduction]: Number of co-enabled transitions 260 [2022-12-06 00:26:13,269 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 00:26:13,271 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2006 [2022-12-06 00:26:13,274 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 32 transitions, 95 flow [2022-12-06 00:26:13,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:26:13,279 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:26:13,279 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 00:26:13,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 00:26:13,282 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 00:26:13,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:26:13,282 INFO L85 PathProgramCache]: Analyzing trace with hash 977102354, now seen corresponding path program 1 times [2022-12-06 00:26:13,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:26:13,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953758778] [2022-12-06 00:26:13,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:26:13,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:26:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:26:13,370 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 00:26:13,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:26:13,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953758778] [2022-12-06 00:26:13,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953758778] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:26:13,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:26:13,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 00:26:13,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842571864] [2022-12-06 00:26:13,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:26:13,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 00:26:13,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:26:13,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 00:26:13,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 00:26:13,372 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 30 [2022-12-06 00:26:13,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 32 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:26:13,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:26:13,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 30 [2022-12-06 00:26:13,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:26:13,559 INFO L130 PetriNetUnfolder]: 1269/1719 cut-off events. [2022-12-06 00:26:13,559 INFO L131 PetriNetUnfolder]: For 248/248 co-relation queries the response was YES. [2022-12-06 00:26:13,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3792 conditions, 1719 events. 1269/1719 cut-off events. For 248/248 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6893 event pairs, 601 based on Foata normal form. 0/1193 useless extension candidates. Maximal degree in co-relation 2340. Up to 1041 conditions per place. [2022-12-06 00:26:13,570 INFO L137 encePairwiseOnDemand]: 26/30 looper letters, 50 selfloop transitions, 3 changer transitions 0/56 dead transitions. [2022-12-06 00:26:13,570 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 56 transitions, 261 flow [2022-12-06 00:26:13,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 00:26:13,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 00:26:13,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2022-12-06 00:26:13,573 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2022-12-06 00:26:13,573 INFO L175 Difference]: Start difference. First operand has 31 places, 32 transitions, 95 flow. Second operand 4 states and 64 transitions. [2022-12-06 00:26:13,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 56 transitions, 261 flow [2022-12-06 00:26:13,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 56 transitions, 248 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-12-06 00:26:13,575 INFO L231 Difference]: Finished difference. Result has 33 places, 33 transitions, 96 flow [2022-12-06 00:26:13,575 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=33, PETRI_TRANSITIONS=33} [2022-12-06 00:26:13,576 INFO L294 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2022-12-06 00:26:13,576 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:26:13,576 INFO L89 Accepts]: Start accepts. Operand has 33 places, 33 transitions, 96 flow [2022-12-06 00:26:13,577 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:26:13,577 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:26:13,577 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 33 transitions, 96 flow [2022-12-06 00:26:13,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 33 transitions, 96 flow [2022-12-06 00:26:13,595 INFO L130 PetriNetUnfolder]: 18/77 cut-off events. [2022-12-06 00:26:13,596 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 00:26:13,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 77 events. 18/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 206 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 62. Up to 13 conditions per place. [2022-12-06 00:26:13,596 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 33 transitions, 96 flow [2022-12-06 00:26:13,596 INFO L188 LiptonReduction]: Number of co-enabled transitions 260 [2022-12-06 00:26:13,806 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 00:26:13,807 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 231 [2022-12-06 00:26:13,807 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 32 transitions, 92 flow [2022-12-06 00:26:13,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:26:13,807 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:26:13,807 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 00:26:13,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 00:26:13,808 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 00:26:13,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:26:13,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1369961760, now seen corresponding path program 1 times [2022-12-06 00:26:13,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:26:13,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603419986] [2022-12-06 00:26:13,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:26:13,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:26:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:26:13,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:26:13,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:26:13,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603419986] [2022-12-06 00:26:13,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603419986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:26:13,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:26:13,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 00:26:13,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638669236] [2022-12-06 00:26:13,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:26:13,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 00:26:13,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:26:13,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 00:26:13,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 00:26:13,846 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 30 [2022-12-06 00:26:13,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 32 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:26:13,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:26:13,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 30 [2022-12-06 00:26:13,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:26:13,972 INFO L130 PetriNetUnfolder]: 1173/1617 cut-off events. [2022-12-06 00:26:13,972 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-12-06 00:26:13,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3406 conditions, 1617 events. 1173/1617 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 6655 event pairs, 291 based on Foata normal form. 66/1167 useless extension candidates. Maximal degree in co-relation 2062. Up to 793 conditions per place. [2022-12-06 00:26:13,978 INFO L137 encePairwiseOnDemand]: 27/30 looper letters, 63 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2022-12-06 00:26:13,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 67 transitions, 310 flow [2022-12-06 00:26:13,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 00:26:13,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 00:26:13,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2022-12-06 00:26:13,980 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6 [2022-12-06 00:26:13,980 INFO L175 Difference]: Start difference. First operand has 32 places, 32 transitions, 92 flow. Second operand 4 states and 72 transitions. [2022-12-06 00:26:13,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 67 transitions, 310 flow [2022-12-06 00:26:13,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 67 transitions, 296 flow, removed 6 selfloop flow, removed 3 redundant places. [2022-12-06 00:26:13,981 INFO L231 Difference]: Finished difference. Result has 34 places, 32 transitions, 91 flow [2022-12-06 00:26:13,982 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=34, PETRI_TRANSITIONS=32} [2022-12-06 00:26:13,982 INFO L294 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2022-12-06 00:26:13,982 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:26:13,982 INFO L89 Accepts]: Start accepts. Operand has 34 places, 32 transitions, 91 flow [2022-12-06 00:26:13,983 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:26:13,983 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:26:13,983 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 32 transitions, 91 flow [2022-12-06 00:26:13,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 32 transitions, 91 flow [2022-12-06 00:26:13,987 INFO L130 PetriNetUnfolder]: 11/60 cut-off events. [2022-12-06 00:26:13,987 INFO L131 PetriNetUnfolder]: For 2/3 co-relation queries the response was YES. [2022-12-06 00:26:13,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 60 events. 11/60 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 137 event pairs, 0 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 63. Up to 8 conditions per place. [2022-12-06 00:26:13,988 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 32 transitions, 91 flow [2022-12-06 00:26:13,988 INFO L188 LiptonReduction]: Number of co-enabled transitions 262 [2022-12-06 00:26:13,990 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:26:13,991 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 9 [2022-12-06 00:26:13,991 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 32 transitions, 91 flow [2022-12-06 00:26:13,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:26:13,991 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:26:13,991 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 00:26:13,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 00:26:13,992 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 00:26:13,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:26:13,992 INFO L85 PathProgramCache]: Analyzing trace with hash 236161011, now seen corresponding path program 1 times [2022-12-06 00:26:13,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:26:13,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074854465] [2022-12-06 00:26:13,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:26:13,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:26:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:26:14,038 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 00:26:14,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:26:14,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074854465] [2022-12-06 00:26:14,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074854465] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:26:14,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:26:14,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 00:26:14,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015895230] [2022-12-06 00:26:14,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:26:14,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 00:26:14,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:26:14,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 00:26:14,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 00:26:14,040 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 30 [2022-12-06 00:26:14,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 32 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:26:14,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:26:14,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 30 [2022-12-06 00:26:14,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:26:14,191 INFO L130 PetriNetUnfolder]: 1182/1637 cut-off events. [2022-12-06 00:26:14,191 INFO L131 PetriNetUnfolder]: For 481/505 co-relation queries the response was YES. [2022-12-06 00:26:14,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3648 conditions, 1637 events. 1182/1637 cut-off events. For 481/505 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 6667 event pairs, 475 based on Foata normal form. 24/1232 useless extension candidates. Maximal degree in co-relation 2239. Up to 666 conditions per place. [2022-12-06 00:26:14,198 INFO L137 encePairwiseOnDemand]: 26/30 looper letters, 62 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2022-12-06 00:26:14,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 68 transitions, 311 flow [2022-12-06 00:26:14,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 00:26:14,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 00:26:14,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2022-12-06 00:26:14,200 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2022-12-06 00:26:14,200 INFO L175 Difference]: Start difference. First operand has 34 places, 32 transitions, 91 flow. Second operand 4 states and 73 transitions. [2022-12-06 00:26:14,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 68 transitions, 311 flow [2022-12-06 00:26:14,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 68 transitions, 310 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 00:26:14,201 INFO L231 Difference]: Finished difference. Result has 38 places, 34 transitions, 111 flow [2022-12-06 00:26:14,201 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=111, PETRI_PLACES=38, PETRI_TRANSITIONS=34} [2022-12-06 00:26:14,202 INFO L294 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2022-12-06 00:26:14,202 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:26:14,202 INFO L89 Accepts]: Start accepts. Operand has 38 places, 34 transitions, 111 flow [2022-12-06 00:26:14,203 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:26:14,203 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:26:14,203 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 34 transitions, 111 flow [2022-12-06 00:26:14,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 111 flow [2022-12-06 00:26:14,207 INFO L130 PetriNetUnfolder]: 11/62 cut-off events. [2022-12-06 00:26:14,207 INFO L131 PetriNetUnfolder]: For 4/5 co-relation queries the response was YES. [2022-12-06 00:26:14,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 62 events. 11/62 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 149 event pairs, 0 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 75. Up to 8 conditions per place. [2022-12-06 00:26:14,208 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 34 transitions, 111 flow [2022-12-06 00:26:14,208 INFO L188 LiptonReduction]: Number of co-enabled transitions 310 [2022-12-06 00:26:14,212 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 00:26:14,213 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 11 [2022-12-06 00:26:14,213 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 33 transitions, 105 flow [2022-12-06 00:26:14,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:26:14,214 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:26:14,214 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 00:26:14,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 00:26:14,214 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)] === [2022-12-06 00:26:14,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:26:14,214 INFO L85 PathProgramCache]: Analyzing trace with hash -691636313, now seen corresponding path program 1 times [2022-12-06 00:26:14,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:26:14,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336406298] [2022-12-06 00:26:14,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:26:14,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:26:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:26:14,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:26:14,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:26:14,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336406298] [2022-12-06 00:26:14,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336406298] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:26:14,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:26:14,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 00:26:14,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460800944] [2022-12-06 00:26:14,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:26:14,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 00:26:14,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:26:14,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 00:26:14,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 00:26:14,271 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 30 [2022-12-06 00:26:14,271 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 105 flow. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 00:26:14,271 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:26:14,271 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 30 [2022-12-06 00:26:14,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:26:14,356 INFO L130 PetriNetUnfolder]: 352/541 cut-off events. [2022-12-06 00:26:14,356 INFO L131 PetriNetUnfolder]: For 200/236 co-relation queries the response was YES. [2022-12-06 00:26:14,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1283 conditions, 541 events. 352/541 cut-off events. For 200/236 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2203 event pairs, 144 based on Foata normal form. 36/535 useless extension candidates. Maximal degree in co-relation 639. Up to 268 conditions per place. [2022-12-06 00:26:14,357 INFO L137 encePairwiseOnDemand]: 26/30 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2022-12-06 00:26:14,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 54 transitions, 253 flow [2022-12-06 00:26:14,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 00:26:14,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 00:26:14,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2022-12-06 00:26:14,358 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-06 00:26:14,358 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 105 flow. Second operand 4 states and 60 transitions. [2022-12-06 00:26:14,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 54 transitions, 253 flow [2022-12-06 00:26:14,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 54 transitions, 249 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-06 00:26:14,360 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2022-12-06 00:26:14,360 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2022-12-06 00:26:14,360 INFO L294 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2022-12-06 00:26:14,360 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:26:14,360 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 0 transitions, 0 flow [2022-12-06 00:26:14,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 00:26:14,361 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 00:26:14,361 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 00:26:14,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-06 00:26:14,361 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 00:26:14,361 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 00:26:14,361 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:26:14,362 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-06 00:26:14,362 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 00:26:14,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 00:26:14,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 00:26:14,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 00:26:14,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 00:26:14,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 00:26:14,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 00:26:14,364 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-06 00:26:14,366 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 00:26:14,366 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 00:26:14,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 12:26:14 BasicIcfg [2022-12-06 00:26:14,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 00:26:14,368 INFO L158 Benchmark]: Toolchain (without parser) took 10282.69ms. Allocated memory was 208.7MB in the beginning and 399.5MB in the end (delta: 190.8MB). Free memory was 185.0MB in the beginning and 341.2MB in the end (delta: -156.2MB). Peak memory consumption was 34.9MB. Max. memory is 8.0GB. [2022-12-06 00:26:14,368 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 208.7MB. Free memory is still 185.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 00:26:14,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.60ms. Allocated memory is still 208.7MB. Free memory was 184.6MB in the beginning and 172.1MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 00:26:14,369 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.77ms. Allocated memory is still 208.7MB. Free memory was 172.1MB in the beginning and 170.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 00:26:14,373 INFO L158 Benchmark]: Boogie Preprocessor took 32.42ms. Allocated memory is still 208.7MB. Free memory was 170.3MB in the beginning and 168.5MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 00:26:14,373 INFO L158 Benchmark]: RCFGBuilder took 419.54ms. Allocated memory is still 208.7MB. Free memory was 168.5MB in the beginning and 150.4MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 00:26:14,373 INFO L158 Benchmark]: TraceAbstraction took 9572.78ms. Allocated memory was 208.7MB in the beginning and 399.5MB in the end (delta: 190.8MB). Free memory was 149.6MB in the beginning and 341.2MB in the end (delta: -191.6MB). Peak memory consumption was 289.4kB. Max. memory is 8.0GB. [2022-12-06 00:26:14,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 208.7MB. Free memory is still 185.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 205.60ms. Allocated memory is still 208.7MB. Free memory was 184.6MB in the beginning and 172.1MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.77ms. Allocated memory is still 208.7MB. Free memory was 172.1MB in the beginning and 170.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.42ms. Allocated memory is still 208.7MB. Free memory was 170.3MB in the beginning and 168.5MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 419.54ms. Allocated memory is still 208.7MB. Free memory was 168.5MB in the beginning and 150.4MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 9572.78ms. Allocated memory was 208.7MB in the beginning and 399.5MB in the end (delta: 190.8MB). Free memory was 149.6MB in the beginning and 341.2MB in the end (delta: -191.6MB). Peak memory consumption was 289.4kB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.2s, 152 PlacesBefore, 33 PlacesAfterwards, 158 TransitionsBefore, 29 TransitionsAfterwards, 1720 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 86 TrivialYvCompositions, 33 ConcurrentYvCompositions, 10 ChoiceCompositions, 129 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 927, independent: 907, independent conditional: 907, independent unconditional: 0, dependent: 20, dependent conditional: 20, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 927, independent: 907, independent conditional: 0, independent unconditional: 907, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 927, independent: 907, independent conditional: 0, independent unconditional: 907, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 927, independent: 907, independent conditional: 0, independent unconditional: 907, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 889, independent: 876, independent conditional: 0, independent unconditional: 876, 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: 889, independent: 876, independent conditional: 0, independent unconditional: 876, 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: 21, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 927, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 889, unknown conditional: 0, unknown unconditional: 889] , Statistics on independence cache: Total cache size (in pairs): 1385, Positive cache size: 1372, Positive conditional cache size: 0, Positive unconditional cache size: 1372, 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: 2.0s, 32 PlacesBefore, 31 PlacesAfterwards, 33 TransitionsBefore, 32 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 60, independent: 52, independent conditional: 52, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 60, independent: 52, independent conditional: 6, independent unconditional: 46, dependent: 8, dependent conditional: 2, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 60, independent: 52, independent conditional: 6, independent unconditional: 46, dependent: 8, dependent conditional: 2, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 60, independent: 52, independent conditional: 6, independent unconditional: 46, dependent: 8, dependent conditional: 2, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, independent: 18, independent conditional: 2, independent unconditional: 16, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 2, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 60, independent: 34, independent conditional: 4, independent unconditional: 30, dependent: 6, dependent conditional: 1, dependent unconditional: 5, unknown: 20, unknown conditional: 3, unknown unconditional: 17] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 18, Positive conditional cache size: 2, Positive unconditional cache size: 16, Negative cache size: 2, Negative conditional cache size: 1, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 33 PlacesBefore, 32 PlacesAfterwards, 33 TransitionsBefore, 32 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 42, independent: 36, independent conditional: 36, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 42, independent: 36, independent conditional: 4, independent unconditional: 32, dependent: 6, dependent conditional: 2, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 42, independent: 36, independent conditional: 4, independent unconditional: 32, dependent: 6, dependent conditional: 2, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 42, independent: 36, independent conditional: 4, independent unconditional: 32, dependent: 6, dependent conditional: 2, dependent unconditional: 4, 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: 42, independent: 36, independent conditional: 4, independent unconditional: 32, dependent: 6, dependent conditional: 2, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 18, Positive conditional cache size: 2, Positive unconditional cache size: 16, Negative cache size: 2, Negative conditional cache size: 1, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 34 PlacesBefore, 34 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 262 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, independent: 19, independent conditional: 19, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 22, independent: 19, independent conditional: 3, independent unconditional: 16, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 22, independent: 19, independent conditional: 2, independent unconditional: 17, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22, independent: 19, independent conditional: 2, independent unconditional: 17, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22, independent: 19, independent conditional: 2, independent unconditional: 17, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 18, Positive conditional cache size: 2, Positive unconditional cache size: 16, Negative cache size: 3, Negative conditional cache size: 1, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 38 PlacesBefore, 38 PlacesAfterwards, 34 TransitionsBefore, 33 TransitionsAfterwards, 310 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 67, independent: 60, independent conditional: 60, independent unconditional: 0, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 67, independent: 60, independent conditional: 28, independent unconditional: 32, dependent: 7, dependent conditional: 2, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 67, independent: 60, independent conditional: 18, independent unconditional: 42, dependent: 7, dependent conditional: 2, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 67, independent: 60, independent conditional: 18, independent unconditional: 42, dependent: 7, dependent conditional: 2, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 21, independent: 19, independent conditional: 11, independent unconditional: 8, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 21, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 67, independent: 41, independent conditional: 7, independent unconditional: 34, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 21, unknown conditional: 13, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 37, Positive conditional cache size: 13, Positive unconditional cache size: 24, Negative cache size: 5, Negative conditional cache size: 3, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 10, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 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): 42, Positive cache size: 37, Positive conditional cache size: 13, Positive unconditional cache size: 24, Negative cache size: 5, Negative conditional cache size: 3, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 103]: 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, 191 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: 9.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 493 IncrementalHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 4 mSDtfsCounter, 493 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 667 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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 00:26:14,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...