/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-collitem-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 00:04:41,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 00:04:41,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 00:04:41,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 00:04:41,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 00:04:41,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 00:04:41,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 00:04:41,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 00:04:41,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 00:04:41,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 00:04:41,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 00:04:41,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 00:04:41,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 00:04:41,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 00:04:41,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 00:04:41,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 00:04:41,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 00:04:41,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 00:04:41,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 00:04:41,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 00:04:41,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 00:04:41,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 00:04:41,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 00:04:41,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 00:04:41,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 00:04:41,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 00:04:41,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 00:04:41,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 00:04:41,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 00:04:41,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 00:04:41,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 00:04:41,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 00:04:41,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 00:04:41,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 00:04:41,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 00:04:41,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 00:04:41,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 00:04:41,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 00:04:41,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 00:04:41,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 00:04:41,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 00:04:41,216 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-12 00:04:41,258 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 00:04:41,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 00:04:41,260 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 00:04:41,260 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 00:04:41,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 00:04:41,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 00:04:41,261 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 00:04:41,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 00:04:41,262 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 00:04:41,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 00:04:41,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 00:04:41,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 00:04:41,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 00:04:41,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 00:04:41,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 00:04:41,263 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 00:04:41,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 00:04:41,263 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 00:04:41,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 00:04:41,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 00:04:41,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 00:04:41,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 00:04:41,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 00:04:41,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 00:04:41,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 00:04:41,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 00:04:41,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 00:04:41,270 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 00:04:41,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 00:04:41,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 00:04:41,270 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 00:04:41,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 00:04:41,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 00:04:41,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 00:04:41,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 00:04:41,584 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 00:04:41,584 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 00:04:41,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-subst.wvr.c [2022-12-12 00:04:42,619 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 00:04:42,818 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 00:04:42,818 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-subst.wvr.c [2022-12-12 00:04:42,823 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/515b85927/628a70a41033473c92af7a05cd2f1e6d/FLAGe0fadba58 [2022-12-12 00:04:42,833 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/515b85927/628a70a41033473c92af7a05cd2f1e6d [2022-12-12 00:04:42,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 00:04:42,835 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 00:04:42,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 00:04:42,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 00:04:42,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 00:04:42,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:04:42" (1/1) ... [2022-12-12 00:04:42,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@272e21f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:04:42, skipping insertion in model container [2022-12-12 00:04:42,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:04:42" (1/1) ... [2022-12-12 00:04:42,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 00:04:42,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 00:04:42,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:04:42,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:04:42,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:04:42,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:04:42,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:04:42,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:04:42,960 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/chl-collitem-subst.wvr.c[3544,3557] [2022-12-12 00:04:42,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 00:04:42,972 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 00:04:42,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:04:42,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:04:42,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:04:42,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:04:42,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:04:42,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:04:42,989 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/chl-collitem-subst.wvr.c[3544,3557] [2022-12-12 00:04:42,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 00:04:43,004 INFO L208 MainTranslator]: Completed translation [2022-12-12 00:04:43,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:04:43 WrapperNode [2022-12-12 00:04:43,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 00:04:43,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 00:04:43,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 00:04:43,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 00:04:43,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:04:43" (1/1) ... [2022-12-12 00:04:43,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:04:43" (1/1) ... [2022-12-12 00:04:43,041 INFO L138 Inliner]: procedures = 23, calls = 46, calls flagged for inlining = 18, calls inlined = 40, statements flattened = 353 [2022-12-12 00:04:43,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 00:04:43,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 00:04:43,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 00:04:43,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 00:04:43,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:04:43" (1/1) ... [2022-12-12 00:04:43,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:04:43" (1/1) ... [2022-12-12 00:04:43,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:04:43" (1/1) ... [2022-12-12 00:04:43,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:04:43" (1/1) ... [2022-12-12 00:04:43,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:04:43" (1/1) ... [2022-12-12 00:04:43,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:04:43" (1/1) ... [2022-12-12 00:04:43,073 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:04:43" (1/1) ... [2022-12-12 00:04:43,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:04:43" (1/1) ... [2022-12-12 00:04:43,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 00:04:43,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 00:04:43,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 00:04:43,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 00:04:43,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:04:43" (1/1) ... [2022-12-12 00:04:43,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 00:04:43,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 00:04:43,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 00:04:43,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 00:04:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 00:04:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 00:04:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 00:04:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 00:04:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 00:04:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 00:04:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 00:04:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 00:04:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 00:04:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 00:04:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 00:04:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 00:04:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 00:04:43,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 00:04:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 00:04:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 00:04:43,195 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 00:04:43,325 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 00:04:43,327 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 00:04:43,800 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 00:04:44,244 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 00:04:44,245 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 00:04:44,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:04:44 BoogieIcfgContainer [2022-12-12 00:04:44,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 00:04:44,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 00:04:44,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 00:04:44,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 00:04:44,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 12:04:42" (1/3) ... [2022-12-12 00:04:44,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8074d7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:04:44, skipping insertion in model container [2022-12-12 00:04:44,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:04:43" (2/3) ... [2022-12-12 00:04:44,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8074d7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:04:44, skipping insertion in model container [2022-12-12 00:04:44,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:04:44" (3/3) ... [2022-12-12 00:04:44,259 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-subst.wvr.c [2022-12-12 00:04:44,271 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 00:04:44,271 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 00:04:44,271 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 00:04:44,331 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 00:04:44,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 126 transitions, 276 flow [2022-12-12 00:04:44,409 INFO L130 PetriNetUnfolder]: 2/123 cut-off events. [2022-12-12 00:04:44,410 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 00:04:44,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 123 events. 2/123 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-12-12 00:04:44,412 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 126 transitions, 276 flow [2022-12-12 00:04:44,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 113 transitions, 244 flow [2022-12-12 00:04:44,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 00:04:44,425 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@675fc74d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 00:04:44,426 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 00:04:44,453 INFO L130 PetriNetUnfolder]: 2/112 cut-off events. [2022-12-12 00:04:44,453 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 00:04:44,454 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:04:44,454 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:04:44,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:04:44,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:04:44,461 INFO L85 PathProgramCache]: Analyzing trace with hash -353202643, now seen corresponding path program 1 times [2022-12-12 00:04:44,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:04:44,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967948159] [2022-12-12 00:04:44,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:04:44,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:04:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:04:50,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:04:50,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:04:50,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967948159] [2022-12-12 00:04:50,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967948159] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:04:50,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:04:50,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:04:50,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616661994] [2022-12-12 00:04:50,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:04:50,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:04:50,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:04:51,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:04:51,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:04:51,028 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 126 [2022-12-12 00:04:51,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 113 transitions, 244 flow. Second operand has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:04:51,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:04:51,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 126 [2022-12-12 00:04:51,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:04:52,841 INFO L130 PetriNetUnfolder]: 14/210 cut-off events. [2022-12-12 00:04:52,841 INFO L131 PetriNetUnfolder]: For 49/56 co-relation queries the response was YES. [2022-12-12 00:04:52,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 210 events. 14/210 cut-off events. For 49/56 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 465 event pairs, 7 based on Foata normal form. 8/207 useless extension candidates. Maximal degree in co-relation 133. Up to 48 conditions per place. [2022-12-12 00:04:52,847 INFO L137 encePairwiseOnDemand]: 113/126 looper letters, 57 selfloop transitions, 2 changer transitions 17/141 dead transitions. [2022-12-12 00:04:52,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 141 transitions, 476 flow [2022-12-12 00:04:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 00:04:52,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 00:04:52,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1084 transitions. [2022-12-12 00:04:52,864 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6617826617826618 [2022-12-12 00:04:52,867 INFO L295 CegarLoopForPetriNet]: 121 programPoint places, 12 predicate places. [2022-12-12 00:04:52,867 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 141 transitions, 476 flow [2022-12-12 00:04:52,870 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 124 transitions, 399 flow [2022-12-12 00:04:52,870 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 124 transitions, 399 flow [2022-12-12 00:04:52,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:04:52,871 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:04:52,871 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:04:52,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 00:04:52,872 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:04:52,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:04:52,873 INFO L85 PathProgramCache]: Analyzing trace with hash 796270149, now seen corresponding path program 2 times [2022-12-12 00:04:52,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:04:52,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397546831] [2022-12-12 00:04:52,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:04:52,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:04:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:04:55,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:04:55,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:04:55,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397546831] [2022-12-12 00:04:55,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397546831] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:04:55,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:04:55,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:04:55,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101148161] [2022-12-12 00:04:55,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:04:55,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:04:55,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:04:55,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:04:55,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:04:55,500 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 126 [2022-12-12 00:04:55,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 124 transitions, 399 flow. Second operand has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:04:55,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:04:55,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 126 [2022-12-12 00:04:55,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:04:56,258 INFO L130 PetriNetUnfolder]: 13/241 cut-off events. [2022-12-12 00:04:56,259 INFO L131 PetriNetUnfolder]: For 155/191 co-relation queries the response was YES. [2022-12-12 00:04:56,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 241 events. 13/241 cut-off events. For 155/191 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 698 event pairs, 1 based on Foata normal form. 4/244 useless extension candidates. Maximal degree in co-relation 173. Up to 51 conditions per place. [2022-12-12 00:04:56,262 INFO L137 encePairwiseOnDemand]: 117/126 looper letters, 71 selfloop transitions, 3 changer transitions 15/154 dead transitions. [2022-12-12 00:04:56,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 154 transitions, 730 flow [2022-12-12 00:04:56,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 00:04:56,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 00:04:56,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 842 transitions. [2022-12-12 00:04:56,264 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6682539682539682 [2022-12-12 00:04:56,265 INFO L295 CegarLoopForPetriNet]: 121 programPoint places, 10 predicate places. [2022-12-12 00:04:56,265 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 154 transitions, 730 flow [2022-12-12 00:04:56,267 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 139 transitions, 622 flow [2022-12-12 00:04:56,268 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 139 transitions, 622 flow [2022-12-12 00:04:56,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:04:56,268 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:04:56,268 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:04:56,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 00:04:56,269 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:04:56,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:04:56,271 INFO L85 PathProgramCache]: Analyzing trace with hash 920477375, now seen corresponding path program 3 times [2022-12-12 00:04:56,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:04:56,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40832192] [2022-12-12 00:04:56,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:04:56,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:04:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:04:58,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:04:58,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:04:58,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40832192] [2022-12-12 00:04:58,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40832192] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:04:58,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:04:58,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:04:58,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774998220] [2022-12-12 00:04:58,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:04:58,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:04:58,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:04:58,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:04:58,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:04:58,793 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 126 [2022-12-12 00:04:58,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 139 transitions, 622 flow. Second operand has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:04:58,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:04:58,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 126 [2022-12-12 00:04:58,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:04:59,517 INFO L130 PetriNetUnfolder]: 9/199 cut-off events. [2022-12-12 00:04:59,518 INFO L131 PetriNetUnfolder]: For 258/556 co-relation queries the response was YES. [2022-12-12 00:04:59,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 504 conditions, 199 events. 9/199 cut-off events. For 258/556 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 430 event pairs, 1 based on Foata normal form. 22/219 useless extension candidates. Maximal degree in co-relation 199. Up to 45 conditions per place. [2022-12-12 00:04:59,519 INFO L137 encePairwiseOnDemand]: 117/126 looper letters, 58 selfloop transitions, 3 changer transitions 12/138 dead transitions. [2022-12-12 00:04:59,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 138 transitions, 762 flow [2022-12-12 00:04:59,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 00:04:59,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 00:04:59,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 840 transitions. [2022-12-12 00:04:59,521 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-12 00:04:59,523 INFO L295 CegarLoopForPetriNet]: 121 programPoint places, 13 predicate places. [2022-12-12 00:04:59,523 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 138 transitions, 762 flow [2022-12-12 00:04:59,525 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 126 transitions, 654 flow [2022-12-12 00:04:59,526 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 126 transitions, 654 flow [2022-12-12 00:04:59,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:04:59,526 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:04:59,526 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:04:59,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 00:04:59,527 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:04:59,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:04:59,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1001604783, now seen corresponding path program 4 times [2022-12-12 00:04:59,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:04:59,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984991478] [2022-12-12 00:04:59,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:04:59,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:04:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:05:02,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:05:02,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:05:02,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984991478] [2022-12-12 00:05:02,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984991478] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:05:02,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:05:02,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:05:02,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618576992] [2022-12-12 00:05:02,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:05:02,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:05:02,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:05:02,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:05:02,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:05:02,574 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 126 [2022-12-12 00:05:02,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 126 transitions, 654 flow. Second operand has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:05:02,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:05:02,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 126 [2022-12-12 00:05:02,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:05:03,776 INFO L130 PetriNetUnfolder]: 7/177 cut-off events. [2022-12-12 00:05:03,776 INFO L131 PetriNetUnfolder]: For 339/441 co-relation queries the response was YES. [2022-12-12 00:05:03,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 177 events. 7/177 cut-off events. For 339/441 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 307 event pairs, 0 based on Foata normal form. 11/188 useless extension candidates. Maximal degree in co-relation 184. Up to 44 conditions per place. [2022-12-12 00:05:03,777 INFO L137 encePairwiseOnDemand]: 117/126 looper letters, 44 selfloop transitions, 3 changer transitions 22/134 dead transitions. [2022-12-12 00:05:03,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 134 transitions, 871 flow [2022-12-12 00:05:03,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 00:05:03,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 00:05:03,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 831 transitions. [2022-12-12 00:05:03,779 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6595238095238095 [2022-12-12 00:05:03,779 INFO L295 CegarLoopForPetriNet]: 121 programPoint places, 15 predicate places. [2022-12-12 00:05:03,779 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 134 transitions, 871 flow [2022-12-12 00:05:03,780 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 112 transitions, 621 flow [2022-12-12 00:05:03,780 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 112 transitions, 621 flow [2022-12-12 00:05:03,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:05:03,781 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:05:03,781 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:05:03,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 00:05:03,781 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:05:03,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:05:03,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1361603923, now seen corresponding path program 5 times [2022-12-12 00:05:03,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:05:03,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994450372] [2022-12-12 00:05:03,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:05:03,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:05:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:05:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:05:06,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:05:06,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994450372] [2022-12-12 00:05:06,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994450372] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:05:06,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:05:06,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:05:06,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574457609] [2022-12-12 00:05:06,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:05:06,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:05:06,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:05:06,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:05:06,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:05:06,728 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 126 [2022-12-12 00:05:06,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 112 transitions, 621 flow. Second operand has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:05:06,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:05:06,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 126 [2022-12-12 00:05:06,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:05:08,081 INFO L130 PetriNetUnfolder]: 1/137 cut-off events. [2022-12-12 00:05:08,081 INFO L131 PetriNetUnfolder]: For 336/344 co-relation queries the response was YES. [2022-12-12 00:05:08,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 137 events. 1/137 cut-off events. For 336/344 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 109 event pairs, 0 based on Foata normal form. 3/140 useless extension candidates. Maximal degree in co-relation 98. Up to 37 conditions per place. [2022-12-12 00:05:08,082 INFO L137 encePairwiseOnDemand]: 117/126 looper letters, 43 selfloop transitions, 1 changer transitions 14/123 dead transitions. [2022-12-12 00:05:08,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 123 transitions, 856 flow [2022-12-12 00:05:08,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 00:05:08,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 00:05:08,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2022-12-12 00:05:08,097 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2022-12-12 00:05:08,100 INFO L295 CegarLoopForPetriNet]: 121 programPoint places, 17 predicate places. [2022-12-12 00:05:08,100 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 123 transitions, 856 flow [2022-12-12 00:05:08,100 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 109 transitions, 676 flow [2022-12-12 00:05:08,101 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 109 transitions, 676 flow [2022-12-12 00:05:08,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:05:08,101 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:05:08,101 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:05:08,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 00:05:08,102 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:05:08,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:05:08,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1196873237, now seen corresponding path program 6 times [2022-12-12 00:05:08,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:05:08,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653433416] [2022-12-12 00:05:08,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:05:08,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:05:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:05:10,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:05:10,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:05:10,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653433416] [2022-12-12 00:05:10,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653433416] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:05:10,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:05:10,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:05:10,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124502195] [2022-12-12 00:05:10,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:05:10,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:05:10,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:05:10,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:05:10,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:05:10,953 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 126 [2022-12-12 00:05:10,954 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 109 transitions, 676 flow. Second operand has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:05:10,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:05:10,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 126 [2022-12-12 00:05:10,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:05:12,347 INFO L130 PetriNetUnfolder]: 0/106 cut-off events. [2022-12-12 00:05:12,347 INFO L131 PetriNetUnfolder]: For 357/357 co-relation queries the response was YES. [2022-12-12 00:05:12,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 106 events. 0/106 cut-off events. For 357/357 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 21 event pairs, 0 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 0. Up to 33 conditions per place. [2022-12-12 00:05:12,347 INFO L137 encePairwiseOnDemand]: 117/126 looper letters, 0 selfloop transitions, 0 changer transitions 106/106 dead transitions. [2022-12-12 00:05:12,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 106 transitions, 746 flow [2022-12-12 00:05:12,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 00:05:12,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 00:05:12,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 814 transitions. [2022-12-12 00:05:12,349 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6460317460317461 [2022-12-12 00:05:12,349 INFO L295 CegarLoopForPetriNet]: 121 programPoint places, 16 predicate places. [2022-12-12 00:05:12,350 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 106 transitions, 746 flow [2022-12-12 00:05:12,350 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 00:05:12,350 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 00:05:12,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:05:12,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 00:05:12,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 00:05:12,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 00:05:12,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 00:05:12,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 00:05:12,353 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2022-12-12 00:05:12,355 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 00:05:12,355 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 00:05:12,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 12:05:12 BasicIcfg [2022-12-12 00:05:12,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 00:05:12,358 INFO L158 Benchmark]: Toolchain (without parser) took 29522.72ms. Allocated memory was 177.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 153.4MB in the beginning and 1.0GB in the end (delta: -852.5MB). Peak memory consumption was 153.3MB. Max. memory is 8.0GB. [2022-12-12 00:05:12,358 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 154.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 00:05:12,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.71ms. Allocated memory is still 177.2MB. Free memory was 153.1MB in the beginning and 140.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 00:05:12,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.51ms. Allocated memory is still 177.2MB. Free memory was 140.5MB in the beginning and 137.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 00:05:12,359 INFO L158 Benchmark]: Boogie Preprocessor took 35.12ms. Allocated memory is still 177.2MB. Free memory was 137.4MB in the beginning and 135.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 00:05:12,359 INFO L158 Benchmark]: RCFGBuilder took 1175.28ms. Allocated memory was 177.2MB in the beginning and 219.2MB in the end (delta: 41.9MB). Free memory was 135.3MB in the beginning and 128.9MB in the end (delta: 6.4MB). Peak memory consumption was 66.1MB. Max. memory is 8.0GB. [2022-12-12 00:05:12,360 INFO L158 Benchmark]: TraceAbstraction took 28103.36ms. Allocated memory was 219.2MB in the beginning and 1.2GB in the end (delta: 962.6MB). Free memory was 127.9MB in the beginning and 1.0GB in the end (delta: -878.1MB). Peak memory consumption was 85.1MB. Max. memory is 8.0GB. [2022-12-12 00:05:12,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 154.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 168.71ms. Allocated memory is still 177.2MB. Free memory was 153.1MB in the beginning and 140.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.51ms. Allocated memory is still 177.2MB. Free memory was 140.5MB in the beginning and 137.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.12ms. Allocated memory is still 177.2MB. Free memory was 137.4MB in the beginning and 135.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1175.28ms. Allocated memory was 177.2MB in the beginning and 219.2MB in the end (delta: 41.9MB). Free memory was 135.3MB in the beginning and 128.9MB in the end (delta: 6.4MB). Peak memory consumption was 66.1MB. Max. memory is 8.0GB. * TraceAbstraction took 28103.36ms. Allocated memory was 219.2MB in the beginning and 1.2GB in the end (delta: 962.6MB). Free memory was 127.9MB in the beginning and 1.0GB in the end (delta: -878.1MB). Peak memory consumption was 85.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 101]: 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, 140 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: 28.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 319 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 319 mSDsluCounter, 1149 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 949 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1073 IncrementalHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 200 mSDtfsCounter, 1073 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=676occurred in iteration=5, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 1469 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 19.2s InterpolantComputationTime, 654 NumberOfCodeBlocks, 654 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 648 ConstructedInterpolants, 0 QuantifiedInterpolants, 10142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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! [2022-12-12 00:05:12,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...