/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-array-sum-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 22:11:14,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 22:11:14,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 22:11:14,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 22:11:14,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 22:11:14,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 22:11:14,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 22:11:14,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 22:11:14,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 22:11:14,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 22:11:14,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 22:11:14,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 22:11:14,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 22:11:14,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 22:11:14,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 22:11:14,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 22:11:14,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 22:11:14,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 22:11:14,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 22:11:14,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 22:11:14,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 22:11:14,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 22:11:14,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 22:11:14,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 22:11:14,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 22:11:14,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 22:11:14,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 22:11:14,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 22:11:14,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 22:11:14,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 22:11:14,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 22:11:14,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 22:11:14,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 22:11:14,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 22:11:14,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 22:11:14,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 22:11:14,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 22:11:14,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 22:11:14,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 22:11:14,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 22:11:14,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 22:11:14,212 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 [2022-12-11 22:11:14,236 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 22:11:14,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 22:11:14,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 22:11:14,238 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 22:11:14,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 22:11:14,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 22:11:14,239 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 22:11:14,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 22:11:14,240 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 22:11:14,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 22:11:14,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 22:11:14,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 22:11:14,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 22:11:14,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 22:11:14,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 22:11:14,241 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 22:11:14,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 22:11:14,241 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 22:11:14,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 22:11:14,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 22:11:14,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 22:11:14,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 22:11:14,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 22:11:14,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 22:11:14,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 22:11:14,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 22:11:14,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 22:11:14,242 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 22:11:14,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 22:11:14,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 22:11:14,242 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 22:11:14,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-11 22:11:14,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 22:11:14,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 22:11:14,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 22:11:14,507 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 22:11:14,507 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 22:11:14,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-array-sum-alt.wvr.c [2022-12-11 22:11:15,489 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 22:11:15,635 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 22:11:15,635 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum-alt.wvr.c [2022-12-11 22:11:15,640 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e84506e2/8af91eedc30941e2a6896f794eafe552/FLAG01ad78602 [2022-12-11 22:11:15,652 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e84506e2/8af91eedc30941e2a6896f794eafe552 [2022-12-11 22:11:15,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 22:11:15,655 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 22:11:15,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 22:11:15,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 22:11:15,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 22:11:15,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 10:11:15" (1/1) ... [2022-12-11 22:11:15,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255f5bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:11:15, skipping insertion in model container [2022-12-11 22:11:15,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 10:11:15" (1/1) ... [2022-12-11 22:11:15,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 22:11:15,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 22:11:15,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:11:15,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:11:15,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:11:15,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:11:15,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:11:15,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:11:15,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:11:15,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:11:15,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:11:15,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:11:15,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:11:15,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:11:15,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum-alt.wvr.c[2761,2774] [2022-12-11 22:11:15,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 22:11:15,813 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 22:11:15,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:11:15,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:11:15,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:11:15,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:11:15,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:11:15,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:11:15,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:11:15,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:11:15,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:11:15,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:11:15,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 22:11:15,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 22:11:15,829 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum-alt.wvr.c[2761,2774] [2022-12-11 22:11:15,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 22:11:15,841 INFO L208 MainTranslator]: Completed translation [2022-12-11 22:11:15,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:11:15 WrapperNode [2022-12-11 22:11:15,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 22:11:15,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 22:11:15,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 22:11:15,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 22:11:15,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:11:15" (1/1) ... [2022-12-11 22:11:15,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:11:15" (1/1) ... [2022-12-11 22:11:15,881 INFO L138 Inliner]: procedures = 25, calls = 51, calls flagged for inlining = 12, calls inlined = 16, statements flattened = 200 [2022-12-11 22:11:15,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 22:11:15,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 22:11:15,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 22:11:15,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 22:11:15,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:11:15" (1/1) ... [2022-12-11 22:11:15,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:11:15" (1/1) ... [2022-12-11 22:11:15,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:11:15" (1/1) ... [2022-12-11 22:11:15,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:11:15" (1/1) ... [2022-12-11 22:11:15,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:11:15" (1/1) ... [2022-12-11 22:11:15,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:11:15" (1/1) ... [2022-12-11 22:11:15,911 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:11:15" (1/1) ... [2022-12-11 22:11:15,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:11:15" (1/1) ... [2022-12-11 22:11:15,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 22:11:15,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 22:11:15,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 22:11:15,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 22:11:15,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:11:15" (1/1) ... [2022-12-11 22:11:15,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 22:11:15,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:11:15,949 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) [2022-12-11 22:11:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 22:11:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 22:11:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 22:11:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 22:11:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-11 22:11:15,976 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-11 22:11:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-11 22:11:15,976 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-11 22:11:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-11 22:11:15,976 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-11 22:11:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 22:11:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 22:11:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 22:11:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-11 22:11:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 22:11:15,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 22:11:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 22:11:15,978 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 22:11:15,955 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 [2022-12-11 22:11:16,048 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 22:11:16,049 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 22:11:16,289 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 22:11:16,381 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 22:11:16,381 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-11 22:11:16,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 10:11:16 BoogieIcfgContainer [2022-12-11 22:11:16,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 22:11:16,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 22:11:16,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 22:11:16,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 22:11:16,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 10:11:15" (1/3) ... [2022-12-11 22:11:16,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7585dcc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 10:11:16, skipping insertion in model container [2022-12-11 22:11:16,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 10:11:15" (2/3) ... [2022-12-11 22:11:16,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7585dcc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 10:11:16, skipping insertion in model container [2022-12-11 22:11:16,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 10:11:16" (3/3) ... [2022-12-11 22:11:16,388 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum-alt.wvr.c [2022-12-11 22:11:16,400 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 22:11:16,400 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 22:11:16,400 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 22:11:16,466 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-11 22:11:16,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 144 transitions, 312 flow [2022-12-11 22:11:16,550 INFO L130 PetriNetUnfolder]: 12/141 cut-off events. [2022-12-11 22:11:16,550 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-11 22:11:16,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 141 events. 12/141 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 95 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2022-12-11 22:11:16,557 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 144 transitions, 312 flow [2022-12-11 22:11:16,564 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 131 transitions, 280 flow [2022-12-11 22:11:16,575 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 22:11:16,580 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;@5eaa5957, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 22:11:16,580 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 22:11:16,645 INFO L130 PetriNetUnfolder]: 12/130 cut-off events. [2022-12-11 22:11:16,645 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-11 22:11:16,646 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:11:16,646 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] [2022-12-11 22:11:16,647 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)] === [2022-12-11 22:11:16,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:11:16,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1027250885, now seen corresponding path program 1 times [2022-12-11 22:11:16,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:11:16,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008095482] [2022-12-11 22:11:16,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:11:16,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:11:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:11:17,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:11:17,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:11:17,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008095482] [2022-12-11 22:11:17,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008095482] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:11:17,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:11:17,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 22:11:17,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567507742] [2022-12-11 22:11:17,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:11:17,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 22:11:17,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:11:17,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 22:11:17,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 22:11:17,181 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 144 [2022-12-11 22:11:17,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 131 transitions, 280 flow. Second operand has 6 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 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) [2022-12-11 22:11:17,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:11:17,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 144 [2022-12-11 22:11:17,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:11:17,440 INFO L130 PetriNetUnfolder]: 175/629 cut-off events. [2022-12-11 22:11:17,441 INFO L131 PetriNetUnfolder]: For 137/138 co-relation queries the response was YES. [2022-12-11 22:11:17,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1000 conditions, 629 events. 175/629 cut-off events. For 137/138 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3327 event pairs, 63 based on Foata normal form. 118/690 useless extension candidates. Maximal degree in co-relation 583. Up to 132 conditions per place. [2022-12-11 22:11:17,449 INFO L137 encePairwiseOnDemand]: 124/144 looper letters, 48 selfloop transitions, 6 changer transitions 10/153 dead transitions. [2022-12-11 22:11:17,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 153 transitions, 479 flow [2022-12-11 22:11:17,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 22:11:17,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 22:11:17,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 990 transitions. [2022-12-11 22:11:17,467 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7638888888888888 [2022-12-11 22:11:17,469 INFO L295 CegarLoopForPetriNet]: 129 programPoint places, 8 predicate places. [2022-12-11 22:11:17,469 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 153 transitions, 479 flow [2022-12-11 22:11:17,474 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 143 transitions, 436 flow [2022-12-11 22:11:17,475 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 143 transitions, 436 flow [2022-12-11 22:11:17,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 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) [2022-12-11 22:11:17,476 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:11:17,476 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] [2022-12-11 22:11:17,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 22:11:17,476 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)] === [2022-12-11 22:11:17,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:11:17,478 INFO L85 PathProgramCache]: Analyzing trace with hash 868473409, now seen corresponding path program 1 times [2022-12-11 22:11:17,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:11:17,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647210981] [2022-12-11 22:11:17,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:11:17,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:11:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:11:17,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:11:17,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:11:17,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647210981] [2022-12-11 22:11:17,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647210981] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:11:17,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:11:17,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 22:11:17,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316645343] [2022-12-11 22:11:17,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:11:17,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 22:11:17,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:11:17,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 22:11:17,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-11 22:11:17,627 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 144 [2022-12-11 22:11:17,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 143 transitions, 436 flow. Second operand has 7 states, 7 states have (on average 107.42857142857143) internal successors, (752), 7 states have internal predecessors, (752), 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) [2022-12-11 22:11:17,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:11:17,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 144 [2022-12-11 22:11:17,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:11:17,929 INFO L130 PetriNetUnfolder]: 723/1883 cut-off events. [2022-12-11 22:11:17,930 INFO L131 PetriNetUnfolder]: For 947/1046 co-relation queries the response was YES. [2022-12-11 22:11:17,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3816 conditions, 1883 events. 723/1883 cut-off events. For 947/1046 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 13287 event pairs, 210 based on Foata normal form. 0/1611 useless extension candidates. Maximal degree in co-relation 2388. Up to 689 conditions per place. [2022-12-11 22:11:17,939 INFO L137 encePairwiseOnDemand]: 135/144 looper letters, 69 selfloop transitions, 8 changer transitions 0/175 dead transitions. [2022-12-11 22:11:17,939 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 175 transitions, 732 flow [2022-12-11 22:11:17,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 22:11:17,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 22:11:17,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 888 transitions. [2022-12-11 22:11:17,941 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2022-12-11 22:11:17,942 INFO L295 CegarLoopForPetriNet]: 129 programPoint places, 6 predicate places. [2022-12-11 22:11:17,942 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 175 transitions, 732 flow [2022-12-11 22:11:17,951 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 175 transitions, 732 flow [2022-12-11 22:11:17,951 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 175 transitions, 732 flow [2022-12-11 22:11:17,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 107.42857142857143) internal successors, (752), 7 states have internal predecessors, (752), 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) [2022-12-11 22:11:17,952 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:11:17,953 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] [2022-12-11 22:11:17,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 22:11:17,953 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)] === [2022-12-11 22:11:17,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:11:17,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1399634289, now seen corresponding path program 1 times [2022-12-11 22:11:17,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:11:17,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069807631] [2022-12-11 22:11:17,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:11:17,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:11:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:11:18,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:11:18,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:11:18,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069807631] [2022-12-11 22:11:18,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069807631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:11:18,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:11:18,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-11 22:11:18,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166714245] [2022-12-11 22:11:18,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:11:18,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-11 22:11:18,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:11:18,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-11 22:11:18,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-11 22:11:18,245 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 144 [2022-12-11 22:11:18,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 175 transitions, 732 flow. Second operand has 10 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 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) [2022-12-11 22:11:18,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:11:18,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 144 [2022-12-11 22:11:18,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:11:18,687 INFO L130 PetriNetUnfolder]: 1626/3392 cut-off events. [2022-12-11 22:11:18,687 INFO L131 PetriNetUnfolder]: For 3035/3513 co-relation queries the response was YES. [2022-12-11 22:11:18,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8752 conditions, 3392 events. 1626/3392 cut-off events. For 3035/3513 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 25024 event pairs, 831 based on Foata normal form. 0/2777 useless extension candidates. Maximal degree in co-relation 7269. Up to 1943 conditions per place. [2022-12-11 22:11:18,706 INFO L137 encePairwiseOnDemand]: 130/144 looper letters, 103 selfloop transitions, 13 changer transitions 0/193 dead transitions. [2022-12-11 22:11:18,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 193 transitions, 1038 flow [2022-12-11 22:11:18,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 22:11:18,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 22:11:18,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1149 transitions. [2022-12-11 22:11:18,710 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6137820512820513 [2022-12-11 22:11:18,711 INFO L295 CegarLoopForPetriNet]: 129 programPoint places, 18 predicate places. [2022-12-11 22:11:18,711 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 193 transitions, 1038 flow [2022-12-11 22:11:18,727 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 193 transitions, 1038 flow [2022-12-11 22:11:18,728 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 193 transitions, 1038 flow [2022-12-11 22:11:18,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 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) [2022-12-11 22:11:18,728 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:11:18,728 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] [2022-12-11 22:11:18,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 22:11:18,729 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)] === [2022-12-11 22:11:18,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:11:18,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1121672197, now seen corresponding path program 1 times [2022-12-11 22:11:18,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:11:18,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087191908] [2022-12-11 22:11:18,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:11:18,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:11:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:11:18,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:11:18,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:11:18,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087191908] [2022-12-11 22:11:18,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087191908] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 22:11:18,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 22:11:18,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-11 22:11:18,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376980648] [2022-12-11 22:11:18,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:11:18,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-11 22:11:18,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:11:18,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-11 22:11:18,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-11 22:11:18,922 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 144 [2022-12-11 22:11:18,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 193 transitions, 1038 flow. Second operand has 10 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 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) [2022-12-11 22:11:18,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:11:18,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 144 [2022-12-11 22:11:18,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:11:19,453 INFO L130 PetriNetUnfolder]: 1783/3521 cut-off events. [2022-12-11 22:11:19,453 INFO L131 PetriNetUnfolder]: For 5072/6321 co-relation queries the response was YES. [2022-12-11 22:11:19,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11212 conditions, 3521 events. 1783/3521 cut-off events. For 5072/6321 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 24774 event pairs, 1083 based on Foata normal form. 0/2870 useless extension candidates. Maximal degree in co-relation 10161. Up to 2154 conditions per place. [2022-12-11 22:11:19,476 INFO L137 encePairwiseOnDemand]: 131/144 looper letters, 78 selfloop transitions, 7 changer transitions 33/195 dead transitions. [2022-12-11 22:11:19,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 195 transitions, 1297 flow [2022-12-11 22:11:19,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-11 22:11:19,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-11 22:11:19,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1075 transitions. [2022-12-11 22:11:19,479 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6221064814814815 [2022-12-11 22:11:19,480 INFO L295 CegarLoopForPetriNet]: 129 programPoint places, 29 predicate places. [2022-12-11 22:11:19,480 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 195 transitions, 1297 flow [2022-12-11 22:11:19,501 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 162 transitions, 977 flow [2022-12-11 22:11:19,501 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 162 transitions, 977 flow [2022-12-11 22:11:19,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 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) [2022-12-11 22:11:19,502 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:11:19,503 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] [2022-12-11 22:11:19,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 22:11:19,503 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)] === [2022-12-11 22:11:19,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:11:19,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1103593415, now seen corresponding path program 1 times [2022-12-11 22:11:19,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:11:19,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484474360] [2022-12-11 22:11:19,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:11:19,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:11:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:11:19,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:19,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:11:19,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484474360] [2022-12-11 22:11:19,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484474360] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:11:19,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666698698] [2022-12-11 22:11:19,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:11:19,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:11:19,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:11:19,638 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:11:19,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-11 22:11:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:11:19,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-11 22:11:19,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:11:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:19,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:11:20,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:20,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666698698] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-11 22:11:20,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-11 22:11:20,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 18 [2022-12-11 22:11:20,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118621263] [2022-12-11 22:11:20,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:11:20,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 22:11:20,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:11:20,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 22:11:20,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-12-11 22:11:20,035 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 144 [2022-12-11 22:11:20,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 162 transitions, 977 flow. Second operand has 9 states, 9 states have (on average 100.33333333333333) internal successors, (903), 9 states have internal predecessors, (903), 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) [2022-12-11 22:11:20,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:11:20,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 144 [2022-12-11 22:11:20,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:11:20,480 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([526] L73-4-->L73-5: Formula: (not (< |v_thread3Thread1of1ForFork0_~i~2#1_5| v_~N~0_3)) InVars {thread3Thread1of1ForFork0_~i~2#1=|v_thread3Thread1of1ForFork0_~i~2#1_5|, ~N~0=v_~N~0_3} OutVars{thread3Thread1of1ForFork0_~i~2#1=|v_thread3Thread1of1ForFork0_~i~2#1_5|, ~N~0=v_~N~0_3} AuxVars[] AssignedVars[][123], [75#L47-3true, 189#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 227#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 |thread3Thread1of1ForFork0_~i~2#1|) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 887#(and (< |thread2Thread1of1ForFork2_~i~1#1| ~N~0) (<= 1 ~N~0)), 145#true, 67#L73-5true, 169#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 84#L98-4true, thread2Thread1of1ForFork2InUse, 82#L60-2true, thread1Thread1of1ForFork1InUse, thread3Thread1of1ForFork0InUse]) [2022-12-11 22:11:20,481 INFO L382 tUnfolder$Statistics]: this new event has 91 ancestors and is cut-off event [2022-12-11 22:11:20,481 INFO L385 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-12-11 22:11:20,481 INFO L385 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-12-11 22:11:20,481 INFO L385 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-12-11 22:11:20,481 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([525] L73-4-->L74: Formula: (< |v_thread3Thread1of1ForFork0_~i~2#1_3| v_~N~0_4) InVars {thread3Thread1of1ForFork0_~i~2#1=|v_thread3Thread1of1ForFork0_~i~2#1_3|, ~N~0=v_~N~0_4} OutVars{thread3Thread1of1ForFork0_~i~2#1=|v_thread3Thread1of1ForFork0_~i~2#1_3|, ~N~0=v_~N~0_4} AuxVars[] AssignedVars[][124], [75#L47-3true, 189#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 895#(and (< |thread2Thread1of1ForFork2_~i~1#1| ~N~0) (<= 1 ~N~0) (<= (+ |thread3Thread1of1ForFork0_~i~2#1| 1) ~N~0)), 145#true, 169#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 213#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 84#L98-4true, 134#L74true, thread2Thread1of1ForFork2InUse, 82#L60-2true, thread1Thread1of1ForFork1InUse, thread3Thread1of1ForFork0InUse]) [2022-12-11 22:11:20,481 INFO L382 tUnfolder$Statistics]: this new event has 91 ancestors and is cut-off event [2022-12-11 22:11:20,481 INFO L385 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-12-11 22:11:20,481 INFO L385 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-12-11 22:11:20,481 INFO L385 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-12-11 22:11:20,599 INFO L130 PetriNetUnfolder]: 2614/5023 cut-off events. [2022-12-11 22:11:20,599 INFO L131 PetriNetUnfolder]: For 9405/12596 co-relation queries the response was YES. [2022-12-11 22:11:20,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19519 conditions, 5023 events. 2614/5023 cut-off events. For 9405/12596 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 38108 event pairs, 611 based on Foata normal form. 20/4176 useless extension candidates. Maximal degree in co-relation 15467. Up to 3249 conditions per place. [2022-12-11 22:11:20,627 INFO L137 encePairwiseOnDemand]: 133/144 looper letters, 165 selfloop transitions, 18 changer transitions 1/275 dead transitions. [2022-12-11 22:11:20,627 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 275 transitions, 2442 flow [2022-12-11 22:11:20,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 22:11:20,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 22:11:20,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1162 transitions. [2022-12-11 22:11:20,629 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7335858585858586 [2022-12-11 22:11:20,630 INFO L295 CegarLoopForPetriNet]: 129 programPoint places, 27 predicate places. [2022-12-11 22:11:20,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 275 transitions, 2442 flow [2022-12-11 22:11:20,650 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 274 transitions, 2427 flow [2022-12-11 22:11:20,650 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 274 transitions, 2427 flow [2022-12-11 22:11:20,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 100.33333333333333) internal successors, (903), 9 states have internal predecessors, (903), 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) [2022-12-11 22:11:20,651 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:11:20,651 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] [2022-12-11 22:11:20,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-11 22:11:20,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:11:20,857 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)] === [2022-12-11 22:11:20,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:11:20,857 INFO L85 PathProgramCache]: Analyzing trace with hash -2131193759, now seen corresponding path program 2 times [2022-12-11 22:11:20,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:11:20,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727385949] [2022-12-11 22:11:20,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:11:20,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:11:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:11:20,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:20,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:11:20,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727385949] [2022-12-11 22:11:20,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727385949] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:11:20,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505835203] [2022-12-11 22:11:20,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-11 22:11:20,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:11:20,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:11:20,963 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:11:20,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-11 22:11:21,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-11 22:11:21,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 22:11:21,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-11 22:11:21,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:11:21,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:21,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:11:21,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:21,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505835203] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-11 22:11:21,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-11 22:11:21,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2022-12-11 22:11:21,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544151590] [2022-12-11 22:11:21,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:11:21,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 22:11:21,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:11:21,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 22:11:21,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-12-11 22:11:21,284 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 144 [2022-12-11 22:11:21,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 274 transitions, 2427 flow. Second operand has 9 states, 9 states have (on average 100.33333333333333) internal successors, (903), 9 states have internal predecessors, (903), 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) [2022-12-11 22:11:21,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:11:21,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 144 [2022-12-11 22:11:21,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:11:22,120 INFO L130 PetriNetUnfolder]: 3816/7641 cut-off events. [2022-12-11 22:11:22,120 INFO L131 PetriNetUnfolder]: For 17526/23868 co-relation queries the response was YES. [2022-12-11 22:11:22,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34229 conditions, 7641 events. 3816/7641 cut-off events. For 17526/23868 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 62986 event pairs, 542 based on Foata normal form. 181/6445 useless extension candidates. Maximal degree in co-relation 33037. Up to 4970 conditions per place. [2022-12-11 22:11:22,241 INFO L137 encePairwiseOnDemand]: 131/144 looper letters, 335 selfloop transitions, 43 changer transitions 0/469 dead transitions. [2022-12-11 22:11:22,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 469 transitions, 5462 flow [2022-12-11 22:11:22,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 22:11:22,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 22:11:22,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1059 transitions. [2022-12-11 22:11:22,245 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7354166666666667 [2022-12-11 22:11:22,247 INFO L295 CegarLoopForPetriNet]: 129 programPoint places, 36 predicate places. [2022-12-11 22:11:22,247 INFO L82 GeneralOperation]: Start removeDead. Operand has 165 places, 469 transitions, 5462 flow [2022-12-11 22:11:22,294 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 469 transitions, 5462 flow [2022-12-11 22:11:22,294 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 469 transitions, 5462 flow [2022-12-11 22:11:22,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 100.33333333333333) internal successors, (903), 9 states have internal predecessors, (903), 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) [2022-12-11 22:11:22,295 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:11:22,295 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] [2022-12-11 22:11:22,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-11 22:11:22,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-11 22:11:22,502 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:11:22,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:11:22,503 INFO L85 PathProgramCache]: Analyzing trace with hash 245651015, now seen corresponding path program 3 times [2022-12-11 22:11:22,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:11:22,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723787731] [2022-12-11 22:11:22,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:11:22,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:11:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:11:22,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:22,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:11:22,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723787731] [2022-12-11 22:11:22,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723787731] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:11:22,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188044045] [2022-12-11 22:11:22,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-11 22:11:22,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:11:22,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:11:22,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:11:22,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-11 22:11:22,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-11 22:11:22,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 22:11:22,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-11 22:11:22,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:11:22,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:22,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:11:22,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:22,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188044045] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 22:11:22,906 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 22:11:22,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 16 [2022-12-11 22:11:22,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183132524] [2022-12-11 22:11:22,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 22:11:22,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 22:11:22,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:11:22,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 22:11:22,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-12-11 22:11:22,908 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 144 [2022-12-11 22:11:22,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 469 transitions, 5462 flow. Second operand has 16 states, 16 states have (on average 97.875) internal successors, (1566), 16 states have internal predecessors, (1566), 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) [2022-12-11 22:11:22,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:11:22,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 144 [2022-12-11 22:11:22,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:11:24,855 INFO L130 PetriNetUnfolder]: 5717/11281 cut-off events. [2022-12-11 22:11:24,856 INFO L131 PetriNetUnfolder]: For 29355/47019 co-relation queries the response was YES. [2022-12-11 22:11:24,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56348 conditions, 11281 events. 5717/11281 cut-off events. For 29355/47019 co-relation queries the response was YES. Maximal size of possible extension queue 643. Compared 97072 event pairs, 450 based on Foata normal form. 294/10108 useless extension candidates. Maximal degree in co-relation 45952. Up to 6594 conditions per place. [2022-12-11 22:11:24,930 INFO L137 encePairwiseOnDemand]: 127/144 looper letters, 613 selfloop transitions, 167 changer transitions 2/870 dead transitions. [2022-12-11 22:11:24,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 870 transitions, 11598 flow [2022-12-11 22:11:24,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-11 22:11:24,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-11 22:11:24,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2750 transitions. [2022-12-11 22:11:24,934 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7345085470085471 [2022-12-11 22:11:24,935 INFO L295 CegarLoopForPetriNet]: 129 programPoint places, 61 predicate places. [2022-12-11 22:11:24,935 INFO L82 GeneralOperation]: Start removeDead. Operand has 190 places, 870 transitions, 11598 flow [2022-12-11 22:11:24,991 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 868 transitions, 11570 flow [2022-12-11 22:11:24,991 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 868 transitions, 11570 flow [2022-12-11 22:11:24,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 97.875) internal successors, (1566), 16 states have internal predecessors, (1566), 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) [2022-12-11 22:11:24,992 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:11:24,992 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] [2022-12-11 22:11:24,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-11 22:11:25,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:11:25,198 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:11:25,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:11:25,198 INFO L85 PathProgramCache]: Analyzing trace with hash -523703, now seen corresponding path program 1 times [2022-12-11 22:11:25,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:11:25,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077026762] [2022-12-11 22:11:25,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:11:25,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:11:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:11:25,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:25,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:11:25,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077026762] [2022-12-11 22:11:25,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077026762] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:11:25,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222709395] [2022-12-11 22:11:25,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:11:25,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:11:25,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:11:25,300 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:11:25,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-11 22:11:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:11:25,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-11 22:11:25,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:11:25,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:25,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:11:25,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:25,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222709395] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-11 22:11:25,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-11 22:11:25,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-12-11 22:11:25,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489914993] [2022-12-11 22:11:25,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:11:25,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 22:11:25,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:11:25,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 22:11:25,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-12-11 22:11:25,567 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 144 [2022-12-11 22:11:25,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 868 transitions, 11570 flow. Second operand has 7 states, 7 states have (on average 107.57142857142857) internal successors, (753), 7 states have internal predecessors, (753), 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) [2022-12-11 22:11:25,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:11:25,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 144 [2022-12-11 22:11:25,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:11:26,919 INFO L130 PetriNetUnfolder]: 4998/9623 cut-off events. [2022-12-11 22:11:26,919 INFO L131 PetriNetUnfolder]: For 29409/33791 co-relation queries the response was YES. [2022-12-11 22:11:26,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52054 conditions, 9623 events. 4998/9623 cut-off events. For 29409/33791 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 77912 event pairs, 366 based on Foata normal form. 50/8528 useless extension candidates. Maximal degree in co-relation 50952. Up to 5530 conditions per place. [2022-12-11 22:11:26,988 INFO L137 encePairwiseOnDemand]: 136/144 looper letters, 579 selfloop transitions, 68 changer transitions 0/881 dead transitions. [2022-12-11 22:11:26,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 881 transitions, 12891 flow [2022-12-11 22:11:26,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 22:11:26,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 22:11:26,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 768 transitions. [2022-12-11 22:11:26,990 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7619047619047619 [2022-12-11 22:11:26,990 INFO L295 CegarLoopForPetriNet]: 129 programPoint places, 67 predicate places. [2022-12-11 22:11:26,990 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 881 transitions, 12891 flow [2022-12-11 22:11:27,042 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 881 transitions, 12891 flow [2022-12-11 22:11:27,042 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 881 transitions, 12891 flow [2022-12-11 22:11:27,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 107.57142857142857) internal successors, (753), 7 states have internal predecessors, (753), 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) [2022-12-11 22:11:27,043 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:11:27,043 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] [2022-12-11 22:11:27,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-11 22:11:27,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:11:27,248 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:11:27,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:11:27,249 INFO L85 PathProgramCache]: Analyzing trace with hash 123117921, now seen corresponding path program 4 times [2022-12-11 22:11:27,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:11:27,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708683772] [2022-12-11 22:11:27,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:11:27,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:11:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:11:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:11:27,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:11:27,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708683772] [2022-12-11 22:11:27,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708683772] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:11:27,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100508218] [2022-12-11 22:11:27,381 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-11 22:11:27,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:11:27,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:11:27,383 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:11:27,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-11 22:11:27,454 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-11 22:11:27,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 22:11:27,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-11 22:11:27,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:11:27,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:11:27,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:11:27,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:11:27,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100508218] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 22:11:27,732 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 22:11:27,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 20 [2022-12-11 22:11:27,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516118223] [2022-12-11 22:11:27,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 22:11:27,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-11 22:11:27,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:11:27,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-11 22:11:27,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2022-12-11 22:11:27,734 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 144 [2022-12-11 22:11:27,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 881 transitions, 12891 flow. Second operand has 20 states, 20 states have (on average 99.7) internal successors, (1994), 20 states have internal predecessors, (1994), 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) [2022-12-11 22:11:27,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:11:27,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 144 [2022-12-11 22:11:27,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:11:29,490 INFO L130 PetriNetUnfolder]: 5346/10354 cut-off events. [2022-12-11 22:11:29,491 INFO L131 PetriNetUnfolder]: For 39071/46145 co-relation queries the response was YES. [2022-12-11 22:11:29,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62190 conditions, 10354 events. 5346/10354 cut-off events. For 39071/46145 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 85246 event pairs, 349 based on Foata normal form. 206/9314 useless extension candidates. Maximal degree in co-relation 60856. Up to 5853 conditions per place. [2022-12-11 22:11:29,570 INFO L137 encePairwiseOnDemand]: 131/144 looper letters, 803 selfloop transitions, 129 changer transitions 0/1066 dead transitions. [2022-12-11 22:11:29,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 1066 transitions, 17733 flow [2022-12-11 22:11:29,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-11 22:11:29,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-11 22:11:29,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1594 transitions. [2022-12-11 22:11:29,575 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7379629629629629 [2022-12-11 22:11:29,575 INFO L295 CegarLoopForPetriNet]: 129 programPoint places, 81 predicate places. [2022-12-11 22:11:29,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 1066 transitions, 17733 flow [2022-12-11 22:11:29,725 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 1066 transitions, 17733 flow [2022-12-11 22:11:29,726 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 1066 transitions, 17733 flow [2022-12-11 22:11:29,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 99.7) internal successors, (1994), 20 states have internal predecessors, (1994), 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) [2022-12-11 22:11:29,726 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:11:29,727 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] [2022-12-11 22:11:29,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-11 22:11:29,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:11:29,927 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:11:29,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:11:29,928 INFO L85 PathProgramCache]: Analyzing trace with hash -335984019, now seen corresponding path program 5 times [2022-12-11 22:11:29,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:11:29,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496776123] [2022-12-11 22:11:29,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:11:29,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:11:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:11:30,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:30,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:11:30,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496776123] [2022-12-11 22:11:30,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496776123] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:11:30,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245388320] [2022-12-11 22:11:30,051 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-11 22:11:30,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:11:30,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:11:30,053 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:11:30,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-11 22:11:30,128 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-11 22:11:30,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 22:11:30,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-11 22:11:30,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:11:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:30,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:11:30,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:30,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245388320] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 22:11:30,234 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 22:11:30,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 15 [2022-12-11 22:11:30,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100026509] [2022-12-11 22:11:30,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 22:11:30,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-11 22:11:30,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:11:30,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-11 22:11:30,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-12-11 22:11:30,236 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 144 [2022-12-11 22:11:30,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 1066 transitions, 17733 flow. Second operand has 15 states, 15 states have (on average 97.93333333333334) internal successors, (1469), 15 states have internal predecessors, (1469), 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) [2022-12-11 22:11:30,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:11:30,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 144 [2022-12-11 22:11:30,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:11:32,861 INFO L130 PetriNetUnfolder]: 6992/13463 cut-off events. [2022-12-11 22:11:32,861 INFO L131 PetriNetUnfolder]: For 62212/71306 co-relation queries the response was YES. [2022-12-11 22:11:32,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90691 conditions, 13463 events. 6992/13463 cut-off events. For 62212/71306 co-relation queries the response was YES. Maximal size of possible extension queue 596. Compared 114198 event pairs, 400 based on Foata normal form. 247/12167 useless extension candidates. Maximal degree in co-relation 80289. Up to 7338 conditions per place. [2022-12-11 22:11:32,983 INFO L137 encePairwiseOnDemand]: 128/144 looper letters, 1013 selfloop transitions, 335 changer transitions 0/1432 dead transitions. [2022-12-11 22:11:32,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 1432 transitions, 25509 flow [2022-12-11 22:11:32,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-11 22:11:32,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-11 22:11:32,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2491 transitions. [2022-12-11 22:11:32,999 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7207754629629629 [2022-12-11 22:11:33,000 INFO L295 CegarLoopForPetriNet]: 129 programPoint places, 104 predicate places. [2022-12-11 22:11:33,000 INFO L82 GeneralOperation]: Start removeDead. Operand has 233 places, 1432 transitions, 25509 flow [2022-12-11 22:11:33,210 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 233 places, 1432 transitions, 25509 flow [2022-12-11 22:11:33,211 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 1432 transitions, 25509 flow [2022-12-11 22:11:33,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 97.93333333333334) internal successors, (1469), 15 states have internal predecessors, (1469), 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) [2022-12-11 22:11:33,211 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:11:33,211 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] [2022-12-11 22:11:33,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-11 22:11:33,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:11:33,416 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:11:33,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:11:33,417 INFO L85 PathProgramCache]: Analyzing trace with hash -94409173, now seen corresponding path program 6 times [2022-12-11 22:11:33,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:11:33,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329179876] [2022-12-11 22:11:33,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:11:33,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:11:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:11:33,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:33,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:11:33,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329179876] [2022-12-11 22:11:33,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329179876] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:11:33,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902348040] [2022-12-11 22:11:33,611 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-11 22:11:33,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:11:33,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:11:33,613 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:11:33,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-11 22:11:33,690 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-12-11 22:11:33,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 22:11:33,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-11 22:11:33,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:11:33,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:33,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:11:33,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:11:33,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902348040] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-11 22:11:33,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-11 22:11:33,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 20 [2022-12-11 22:11:33,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36959347] [2022-12-11 22:11:33,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 22:11:33,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 22:11:33,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:11:33,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 22:11:33,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2022-12-11 22:11:33,933 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 144 [2022-12-11 22:11:33,934 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 1432 transitions, 25509 flow. Second operand has 9 states, 9 states have (on average 100.33333333333333) internal successors, (903), 9 states have internal predecessors, (903), 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) [2022-12-11 22:11:33,934 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:11:33,934 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 144 [2022-12-11 22:11:33,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:11:36,392 INFO L130 PetriNetUnfolder]: 7017/13477 cut-off events. [2022-12-11 22:11:36,392 INFO L131 PetriNetUnfolder]: For 75745/83494 co-relation queries the response was YES. [2022-12-11 22:11:36,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99479 conditions, 13477 events. 7017/13477 cut-off events. For 75745/83494 co-relation queries the response was YES. Maximal size of possible extension queue 599. Compared 114234 event pairs, 398 based on Foata normal form. 165/12104 useless extension candidates. Maximal degree in co-relation 91061. Up to 7346 conditions per place. [2022-12-11 22:11:36,519 INFO L137 encePairwiseOnDemand]: 132/144 looper letters, 967 selfloop transitions, 196 changer transitions 0/1422 dead transitions. [2022-12-11 22:11:36,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 1422 transitions, 27624 flow [2022-12-11 22:11:36,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 22:11:36,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 22:11:36,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1055 transitions. [2022-12-11 22:11:36,521 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7326388888888888 [2022-12-11 22:11:36,521 INFO L295 CegarLoopForPetriNet]: 129 programPoint places, 113 predicate places. [2022-12-11 22:11:36,521 INFO L82 GeneralOperation]: Start removeDead. Operand has 242 places, 1422 transitions, 27624 flow [2022-12-11 22:11:36,620 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 242 places, 1422 transitions, 27624 flow [2022-12-11 22:11:36,621 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 1422 transitions, 27624 flow [2022-12-11 22:11:36,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 100.33333333333333) internal successors, (903), 9 states have internal predecessors, (903), 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) [2022-12-11 22:11:36,621 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:11:36,621 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:11:36,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-11 22:11:36,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:11:36,827 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:11:36,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:11:36,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2789243, now seen corresponding path program 1 times [2022-12-11 22:11:36,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:11:36,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699040648] [2022-12-11 22:11:36,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:11:36,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:11:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:11:38,042 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:11:38,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:11:38,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699040648] [2022-12-11 22:11:38,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699040648] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:11:38,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170738915] [2022-12-11 22:11:38,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:11:38,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:11:38,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:11:38,044 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:11:38,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-11 22:11:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:11:38,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 84 conjunts are in the unsatisfiable core [2022-12-11 22:11:38,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:11:38,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-11 22:11:38,230 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-11 22:11:38,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-11 22:11:38,498 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-11 22:11:38,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-12-11 22:11:38,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-11 22:11:39,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-11 22:11:39,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-11 22:11:39,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-11 22:11:39,490 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:11:39,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 17 [2022-12-11 22:11:39,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:11:39,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:11:40,285 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_319 (Array Int Int)) (~M~0 Int)) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (<= (+ c_~res2~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_319) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4)))) |c_thread1Thread1of1ForFork1_~tmp~0#1|))) (forall ((v_ArrVal_319 (Array Int Int)) (~M~0 Int)) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (<= |c_thread1Thread1of1ForFork1_~tmp~0#1| (+ c_~res2~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_319) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4)))))))) is different from false [2022-12-11 22:11:41,648 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_317 (Array Int Int)) (v_ArrVal_319 (Array Int Int)) (v_ArrVal_318 (Array Int Int)) (~M~0 Int)) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_317) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_318))) (<= (+ (select (select .cse0 |c_ULTIMATE.start_main_#t~ret12#1.base|) |c_ULTIMATE.start_main_#t~ret12#1.offset|) c_~res1~0) (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_319) |c_ULTIMATE.start_main_#t~ret12#1.base|) (+ |c_ULTIMATE.start_main_#t~ret12#1.offset| (* ~M~0 4))) c_~res2~0))))) (forall ((v_ArrVal_317 (Array Int Int)) (v_ArrVal_319 (Array Int Int)) (v_ArrVal_318 (Array Int Int)) (~M~0 Int)) (or (<= (+ 2 ~M~0) c_~N~0) (not (< ~M~0 c_~N~0)) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_317) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_318))) (<= (+ (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_319) |c_ULTIMATE.start_main_#t~ret12#1.base|) (+ |c_ULTIMATE.start_main_#t~ret12#1.offset| (* ~M~0 4))) c_~res2~0) (+ (select (select .cse1 |c_ULTIMATE.start_main_#t~ret12#1.base|) |c_ULTIMATE.start_main_#t~ret12#1.offset|) c_~res1~0)))))) is different from false [2022-12-11 22:11:44,367 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:11:44,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 47 [2022-12-11 22:11:44,379 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:11:44,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1638 treesize of output 1520 [2022-12-11 22:11:44,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1510 treesize of output 1318 [2022-12-11 22:11:44,404 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:11:44,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1318 treesize of output 1168 [2022-12-11 22:11:44,422 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:11:44,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1158 treesize of output 1088 [2022-12-11 22:11:45,473 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:11:45,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 47 [2022-12-11 22:11:45,476 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-11 22:11:45,483 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-11 22:11:45,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 406 treesize of output 362 [2022-12-11 22:11:45,493 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-11 22:11:45,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 354 treesize of output 294 [2022-12-11 22:11:45,505 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-11 22:11:45,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 274 treesize of output 246 [2022-12-11 22:11:46,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2022-12-11 22:11:46,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2022-12-11 22:11:46,765 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:11:46,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170738915] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 22:11:46,765 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 22:11:46,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 33, 33] total 79 [2022-12-11 22:11:46,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66418283] [2022-12-11 22:11:46,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 22:11:46,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-12-11 22:11:46,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:11:46,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-12-11 22:11:46,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=530, Invalid=5255, Unknown=75, NotChecked=302, Total=6162 [2022-12-11 22:11:46,769 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 144 [2022-12-11 22:11:46,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 1422 transitions, 27624 flow. Second operand has 79 states, 79 states have (on average 49.36708860759494) internal successors, (3900), 79 states have internal predecessors, (3900), 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) [2022-12-11 22:11:46,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:11:46,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 144 [2022-12-11 22:11:46,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:12:09,795 INFO L130 PetriNetUnfolder]: 38985/65020 cut-off events. [2022-12-11 22:12:09,795 INFO L131 PetriNetUnfolder]: For 436761/445715 co-relation queries the response was YES. [2022-12-11 22:12:10,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469144 conditions, 65020 events. 38985/65020 cut-off events. For 436761/445715 co-relation queries the response was YES. Maximal size of possible extension queue 2999. Compared 600564 event pairs, 2178 based on Foata normal form. 672/59333 useless extension candidates. Maximal degree in co-relation 399030. Up to 29975 conditions per place. [2022-12-11 22:12:10,406 INFO L137 encePairwiseOnDemand]: 101/144 looper letters, 3072 selfloop transitions, 738 changer transitions 11/4029 dead transitions. [2022-12-11 22:12:10,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 4029 transitions, 86553 flow [2022-12-11 22:12:10,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-12-11 22:12:10,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2022-12-11 22:12:10,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 3087 transitions. [2022-12-11 22:12:10,410 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3828125 [2022-12-11 22:12:10,411 INFO L295 CegarLoopForPetriNet]: 129 programPoint places, 168 predicate places. [2022-12-11 22:12:10,411 INFO L82 GeneralOperation]: Start removeDead. Operand has 297 places, 4029 transitions, 86553 flow [2022-12-11 22:12:10,960 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 295 places, 4018 transitions, 86326 flow [2022-12-11 22:12:10,961 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 4018 transitions, 86326 flow [2022-12-11 22:12:10,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 49.36708860759494) internal successors, (3900), 79 states have internal predecessors, (3900), 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) [2022-12-11 22:12:10,962 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:12:10,962 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:12:10,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-11 22:12:11,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-11 22:12:11,167 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:12:11,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:12:11,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1667109685, now seen corresponding path program 1 times [2022-12-11 22:12:11,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:12:11,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110515327] [2022-12-11 22:12:11,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:12:11,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:12:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:12:12,267 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:12:12,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:12:12,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110515327] [2022-12-11 22:12:12,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110515327] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:12:12,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280281446] [2022-12-11 22:12:12,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:12:12,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:12:12,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:12:12,269 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:12:12,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-11 22:12:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:12:12,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 49 conjunts are in the unsatisfiable core [2022-12-11 22:12:12,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:12:12,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-11 22:12:12,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:12:12,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:12:12,849 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:12:12,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-12-11 22:12:13,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:12:13,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280281446] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 22:12:13,057 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 22:12:13,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 12, 11] total 35 [2022-12-11 22:12:13,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729844649] [2022-12-11 22:12:13,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 22:12:13,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-11 22:12:13,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:12:13,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-11 22:12:13,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1043, Unknown=0, NotChecked=0, Total=1190 [2022-12-11 22:12:13,059 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 144 [2022-12-11 22:12:13,060 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 4018 transitions, 86326 flow. Second operand has 35 states, 35 states have (on average 60.65714285714286) internal successors, (2123), 35 states have internal predecessors, (2123), 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) [2022-12-11 22:12:13,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:12:13,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 144 [2022-12-11 22:12:13,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:12:51,227 INFO L130 PetriNetUnfolder]: 63440/102196 cut-off events. [2022-12-11 22:12:51,228 INFO L131 PetriNetUnfolder]: For 698921/701877 co-relation queries the response was YES. [2022-12-11 22:12:51,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 781821 conditions, 102196 events. 63440/102196 cut-off events. For 698921/701877 co-relation queries the response was YES. Maximal size of possible extension queue 4791. Compared 963348 event pairs, 3113 based on Foata normal form. 184/92440 useless extension candidates. Maximal degree in co-relation 616312. Up to 45659 conditions per place. [2022-12-11 22:12:52,154 INFO L137 encePairwiseOnDemand]: 116/144 looper letters, 5395 selfloop transitions, 1036 changer transitions 15/7316 dead transitions. [2022-12-11 22:12:52,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 7316 transitions, 164656 flow [2022-12-11 22:12:52,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-11 22:12:52,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-12-11 22:12:52,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 2541 transitions. [2022-12-11 22:12:52,157 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.45245726495726496 [2022-12-11 22:12:52,158 INFO L295 CegarLoopForPetriNet]: 129 programPoint places, 204 predicate places. [2022-12-11 22:12:52,158 INFO L82 GeneralOperation]: Start removeDead. Operand has 333 places, 7316 transitions, 164656 flow [2022-12-11 22:12:53,009 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 331 places, 7301 transitions, 164330 flow [2022-12-11 22:12:53,009 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 7301 transitions, 164330 flow [2022-12-11 22:12:53,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 60.65714285714286) internal successors, (2123), 35 states have internal predecessors, (2123), 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) [2022-12-11 22:12:53,010 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:12:53,010 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:12:53,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-11 22:12:53,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-11 22:12:53,211 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:12:53,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:12:53,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1798962591, now seen corresponding path program 2 times [2022-12-11 22:12:53,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:12:53,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634338077] [2022-12-11 22:12:53,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:12:53,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:12:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:12:53,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:12:53,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:12:53,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634338077] [2022-12-11 22:12:53,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634338077] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:12:53,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7279468] [2022-12-11 22:12:53,880 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-11 22:12:53,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:12:53,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:12:53,882 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:12:53,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-11 22:12:54,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-11 22:12:54,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 22:12:54,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 62 conjunts are in the unsatisfiable core [2022-12-11 22:12:54,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:12:54,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 22:12:54,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-11 22:12:54,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-11 22:12:54,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:12:54,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:12:54,852 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:12:54,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 36 [2022-12-11 22:12:54,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2022-12-11 22:12:55,144 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:12:55,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7279468] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 22:12:55,145 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 22:12:55,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 18] total 43 [2022-12-11 22:12:55,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243475508] [2022-12-11 22:12:55,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 22:12:55,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-12-11 22:12:55,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:12:55,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-12-11 22:12:55,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1603, Unknown=19, NotChecked=0, Total=1806 [2022-12-11 22:12:55,147 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 144 [2022-12-11 22:12:55,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 7301 transitions, 164330 flow. Second operand has 43 states, 43 states have (on average 63.46511627906977) internal successors, (2729), 43 states have internal predecessors, (2729), 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) [2022-12-11 22:12:55,149 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:12:55,149 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 144 [2022-12-11 22:12:55,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:14:45,560 INFO L130 PetriNetUnfolder]: 101855/164815 cut-off events. [2022-12-11 22:14:45,560 INFO L131 PetriNetUnfolder]: For 1243427/1248655 co-relation queries the response was YES. [2022-12-11 22:14:46,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1380283 conditions, 164815 events. 101855/164815 cut-off events. For 1243427/1248655 co-relation queries the response was YES. Maximal size of possible extension queue 7756. Compared 1653349 event pairs, 4413 based on Foata normal form. 423/148843 useless extension candidates. Maximal degree in co-relation 1019003. Up to 73797 conditions per place. [2022-12-11 22:14:47,313 INFO L137 encePairwiseOnDemand]: 121/144 looper letters, 10572 selfloop transitions, 1936 changer transitions 24/13411 dead transitions. [2022-12-11 22:14:47,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 13411 transitions, 323251 flow [2022-12-11 22:14:47,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-11 22:14:47,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-12-11 22:14:47,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 2852 transitions. [2022-12-11 22:14:47,322 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4830623306233062 [2022-12-11 22:14:47,322 INFO L295 CegarLoopForPetriNet]: 129 programPoint places, 242 predicate places. [2022-12-11 22:14:47,322 INFO L82 GeneralOperation]: Start removeDead. Operand has 371 places, 13411 transitions, 323251 flow [2022-12-11 22:14:48,703 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 367 places, 13387 transitions, 322759 flow [2022-12-11 22:14:48,703 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 13387 transitions, 322759 flow [2022-12-11 22:14:48,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 63.46511627906977) internal successors, (2729), 43 states have internal predecessors, (2729), 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) [2022-12-11 22:14:48,704 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:14:48,704 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:14:48,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-11 22:14:48,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-11 22:14:48,909 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:14:48,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:14:48,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1748392475, now seen corresponding path program 2 times [2022-12-11 22:14:48,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:14:48,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070822580] [2022-12-11 22:14:48,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:14:48,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:14:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:14:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:14:50,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:14:50,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070822580] [2022-12-11 22:14:50,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070822580] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:14:50,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262063527] [2022-12-11 22:14:50,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-11 22:14:50,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:14:50,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:14:50,592 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:14:50,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-11 22:14:50,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-11 22:14:50,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 22:14:50,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 73 conjunts are in the unsatisfiable core [2022-12-11 22:14:50,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:14:51,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-11 22:14:51,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-11 22:14:51,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 22:14:51,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-11 22:14:51,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 22:14:51,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-11 22:14:52,089 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:14:52,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 17 [2022-12-11 22:14:52,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:14:52,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:15:10,650 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:15:10,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 44 [2022-12-11 22:15:10,660 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:15:10,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1670 treesize of output 1488 [2022-12-11 22:15:10,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1478 treesize of output 1286 [2022-12-11 22:15:10,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 691 treesize of output 595 [2022-12-11 22:15:10,689 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:15:10,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1190 treesize of output 1088 [2022-12-11 22:15:11,417 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:15:11,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 45 [2022-12-11 22:15:11,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-11 22:15:11,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-11 22:15:11,426 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-11 22:15:11,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 82 [2022-12-11 22:15:11,433 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-11 22:15:11,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 63 [2022-12-11 22:15:12,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 22:15:12,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262063527] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 22:15:12,193 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 22:15:12,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 33, 31] total 82 [2022-12-11 22:15:12,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981656551] [2022-12-11 22:15:12,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 22:15:12,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-12-11 22:15:12,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:15:12,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-12-11 22:15:12,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=648, Invalid=5932, Unknown=62, NotChecked=0, Total=6642 [2022-12-11 22:15:12,197 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 144 [2022-12-11 22:15:12,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 13387 transitions, 322759 flow. Second operand has 82 states, 82 states have (on average 45.47560975609756) internal successors, (3729), 82 states have internal predecessors, (3729), 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) [2022-12-11 22:15:12,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:15:12,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 144 [2022-12-11 22:15:12,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 22:24:20,853 INFO L130 PetriNetUnfolder]: 173730/282979 cut-off events. [2022-12-11 22:24:20,853 INFO L131 PetriNetUnfolder]: For 2333695/2343388 co-relation queries the response was YES. [2022-12-11 22:24:21,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2591477 conditions, 282979 events. 173730/282979 cut-off events. For 2333695/2343388 co-relation queries the response was YES. Maximal size of possible extension queue 13362. Compared 3036891 event pairs, 2752 based on Foata normal form. 1032/257529 useless extension candidates. Maximal degree in co-relation 1739734. Up to 137773 conditions per place. [2022-12-11 22:24:23,874 INFO L137 encePairwiseOnDemand]: 103/144 looper letters, 22860 selfloop transitions, 7303 changer transitions 33/30233 dead transitions. [2022-12-11 22:24:23,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 595 places, 30233 transitions, 740529 flow [2022-12-11 22:24:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 229 states. [2022-12-11 22:24:23,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2022-12-11 22:24:23,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 12238 transitions. [2022-12-11 22:24:23,884 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3711183891314896 [2022-12-11 22:24:23,884 INFO L295 CegarLoopForPetriNet]: 129 programPoint places, 466 predicate places. [2022-12-11 22:24:23,884 INFO L82 GeneralOperation]: Start removeDead. Operand has 595 places, 30233 transitions, 740529 flow [2022-12-11 22:24:26,206 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 589 places, 30200 transitions, 739748 flow [2022-12-11 22:24:26,207 INFO L495 AbstractCegarLoop]: Abstraction has has 589 places, 30200 transitions, 739748 flow [2022-12-11 22:24:26,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 45.47560975609756) internal successors, (3729), 82 states have internal predecessors, (3729), 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) [2022-12-11 22:24:26,208 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 22:24:26,208 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 22:24:26,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-11 22:24:26,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-11 22:24:26,409 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 22:24:26,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 22:24:26,409 INFO L85 PathProgramCache]: Analyzing trace with hash 124107717, now seen corresponding path program 3 times [2022-12-11 22:24:26,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 22:24:26,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378369074] [2022-12-11 22:24:26,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 22:24:26,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 22:24:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 22:24:27,432 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:24:27,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 22:24:27,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378369074] [2022-12-11 22:24:27,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378369074] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 22:24:27,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686355681] [2022-12-11 22:24:27,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-11 22:24:27,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 22:24:27,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 22:24:27,434 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 22:24:27,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-11 22:24:27,526 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-11 22:24:27,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 22:24:27,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 64 conjunts are in the unsatisfiable core [2022-12-11 22:24:27,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 22:24:28,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 22:24:28,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-11 22:24:28,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 22:24:28,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-11 22:24:28,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-11 22:24:28,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:24:28,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 22:24:28,664 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 22:24:28,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 210 treesize of output 148 [2022-12-11 22:24:28,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 134 [2022-12-11 22:24:28,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 126 [2022-12-11 22:24:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 22:24:29,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686355681] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 22:24:29,087 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 22:24:29,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 20] total 49 [2022-12-11 22:24:29,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11574574] [2022-12-11 22:24:29,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 22:24:29,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-12-11 22:24:29,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 22:24:29,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-12-11 22:24:29,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=2117, Unknown=14, NotChecked=0, Total=2352 [2022-12-11 22:24:29,090 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 144 [2022-12-11 22:24:29,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 589 places, 30200 transitions, 739748 flow. Second operand has 49 states, 49 states have (on average 62.183673469387756) internal successors, (3047), 49 states have internal predecessors, (3047), 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) [2022-12-11 22:24:29,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 22:24:29,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 144 [2022-12-11 22:24:29,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-11 22:24:34,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-11 22:24:34,919 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 22:24:34,919 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-11 22:24:34,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-12-11 22:24:34,942 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-11 22:24:35,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-11 22:24:35,120 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (49states, 59/144 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 4984 conditions, 512 events (164/511 cut-off events. For 6767/8692 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 3456 event pairs, 14 based on Foata normal form. 132/765 useless extension candidates. Maximal degree in co-relation 4480. Up to 217 conditions per place.). [2022-12-11 22:24:35,121 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 22:24:35,122 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 22:24:35,122 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 22:24:35,122 INFO L445 BasicCegarLoop]: Path program histogram: [6, 3, 2, 1, 1, 1, 1, 1] [2022-12-11 22:24:35,124 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 22:24:35,124 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 22:24:35,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 10:24:35 BasicIcfg [2022-12-11 22:24:35,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 22:24:35,127 INFO L158 Benchmark]: Toolchain (without parser) took 799471.66ms. Allocated memory was 229.6MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 206.4MB in the beginning and 671.1MB in the end (delta: -464.7MB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. [2022-12-11 22:24:35,127 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 229.6MB. Free memory is still 206.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 22:24:35,127 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.89ms. Allocated memory is still 229.6MB. Free memory was 206.4MB in the beginning and 193.3MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-11 22:24:35,127 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.78ms. Allocated memory is still 229.6MB. Free memory was 193.3MB in the beginning and 191.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 22:24:35,127 INFO L158 Benchmark]: Boogie Preprocessor took 31.74ms. Allocated memory is still 229.6MB. Free memory was 190.7MB in the beginning and 189.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 22:24:35,127 INFO L158 Benchmark]: RCFGBuilder took 468.61ms. Allocated memory is still 229.6MB. Free memory was 189.2MB in the beginning and 157.1MB in the end (delta: 32.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2022-12-11 22:24:35,127 INFO L158 Benchmark]: TraceAbstraction took 798741.78ms. Allocated memory was 229.6MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 156.1MB in the beginning and 671.1MB in the end (delta: -515.0MB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. [2022-12-11 22:24:35,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 229.6MB. Free memory is still 206.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 184.89ms. Allocated memory is still 229.6MB. Free memory was 206.4MB in the beginning and 193.3MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.78ms. Allocated memory is still 229.6MB. Free memory was 193.3MB in the beginning and 191.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.74ms. Allocated memory is still 229.6MB. Free memory was 190.7MB in the beginning and 189.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 468.61ms. Allocated memory is still 229.6MB. Free memory was 189.2MB in the beginning and 157.1MB in the end (delta: 32.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * TraceAbstraction took 798741.78ms. Allocated memory was 229.6MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 156.1MB in the beginning and 671.1MB in the end (delta: -515.0MB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (49states, 59/144 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 4984 conditions, 512 events (164/511 cut-off events. For 6767/8692 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 3456 event pairs, 14 based on Foata normal form. 132/765 useless extension candidates. Maximal degree in co-relation 4480. Up to 217 conditions per place.). - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (49states, 59/144 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 4984 conditions, 512 events (164/511 cut-off events. For 6767/8692 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 3456 event pairs, 14 based on Foata normal form. 132/765 useless extension candidates. Maximal degree in co-relation 4480. Up to 217 conditions per place.). - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (49states, 59/144 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 4984 conditions, 512 events (164/511 cut-off events. For 6767/8692 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 3456 event pairs, 14 based on Foata normal form. 132/765 useless extension candidates. Maximal degree in co-relation 4480. Up to 217 conditions per place.). - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (49states, 59/144 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 4984 conditions, 512 events (164/511 cut-off events. For 6767/8692 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 3456 event pairs, 14 based on Foata normal form. 132/765 useless extension candidates. Maximal degree in co-relation 4480. Up to 217 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 166 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 5.8s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 798.6s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 746.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8363 SdHoareTripleChecker+Valid, 16.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8363 mSDsluCounter, 10731 SdHoareTripleChecker+Invalid, 14.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 573 IncrementalHoareTripleChecker+Unchecked, 9963 mSDsCounter, 457 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28618 IncrementalHoareTripleChecker+Invalid, 29648 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 457 mSolverCounterUnsat, 768 mSDtfsCounter, 28618 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3292 GetRequests, 2397 SyntacticMatches, 43 SemanticMatches, 852 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 41860 ImplicationChecksByTransitivity, 56.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=739748occurred in iteration=15, InterpolantAutomatonStates: 510, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.8s AutomataMinimizationTime, 15 MinimizatonAttempts, 2232 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 42.0s InterpolantComputationTime, 3022 NumberOfCodeBlocks, 3011 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 4296 ConstructedInterpolants, 118 QuantifiedInterpolants, 35345 SizeOfPredicates, 238 NumberOfNonLiveVariables, 3520 ConjunctsInSsa, 382 ConjunctsInUnsatCore, 40 InterpolantComputations, 8 PerfectInterpolantSequences, 36/90 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown