/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 19:39:16,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 19:39:16,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 19:39:16,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 19:39:16,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 19:39:16,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 19:39:16,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 19:39:16,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 19:39:16,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 19:39:16,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 19:39:16,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 19:39:16,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 19:39:16,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 19:39:16,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 19:39:16,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 19:39:16,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 19:39:16,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 19:39:16,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 19:39:16,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 19:39:16,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 19:39:16,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 19:39:16,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 19:39:16,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 19:39:16,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 19:39:16,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 19:39:16,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 19:39:16,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 19:39:16,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 19:39:16,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 19:39:16,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 19:39:16,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 19:39:16,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 19:39:16,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 19:39:16,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 19:39:16,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 19:39:16,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 19:39:16,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 19:39:16,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 19:39:16,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 19:39:16,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 19:39:16,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 19:39:16,411 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 [2022-12-05 19:39:16,434 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 19:39:16,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 19:39:16,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 19:39:16,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 19:39:16,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 19:39:16,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 19:39:16,436 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 19:39:16,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 19:39:16,437 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 19:39:16,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 19:39:16,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 19:39:16,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 19:39:16,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 19:39:16,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 19:39:16,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 19:39:16,438 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 19:39:16,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 19:39:16,438 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 19:39:16,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 19:39:16,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 19:39:16,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 19:39:16,439 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 19:39:16,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 19:39:16,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 19:39:16,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 19:39:16,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 19:39:16,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 19:39:16,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 19:39:16,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 19:39:16,439 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 19:39:16,439 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 19:39:16,440 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 19:39:16,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 19:39:16,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 19:39:16,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 19:39:16,718 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 19:39:16,719 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 19:39:16,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c [2022-12-05 19:39:17,713 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 19:39:17,892 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 19:39:17,892 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c [2022-12-05 19:39:17,897 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87b23728d/2c2234b18cfd472c952266ec499b5e08/FLAG732c84987 [2022-12-05 19:39:17,910 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87b23728d/2c2234b18cfd472c952266ec499b5e08 [2022-12-05 19:39:17,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 19:39:17,912 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 19:39:17,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 19:39:17,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 19:39:17,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 19:39:17,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 07:39:17" (1/1) ... [2022-12-05 19:39:17,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75069bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:39:17, skipping insertion in model container [2022-12-05 19:39:17,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 07:39:17" (1/1) ... [2022-12-05 19:39:17,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 19:39:17,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 19:39:18,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:39:18,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:39:18,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:39:18,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:39:18,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:39:18,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:39:18,025 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-three-array-max.wvr.c[2823,2836] [2022-12-05 19:39:18,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 19:39:18,036 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 19:39:18,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:39:18,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:39:18,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:39:18,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:39:18,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:39:18,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:39:18,057 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-three-array-max.wvr.c[2823,2836] [2022-12-05 19:39:18,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 19:39:18,077 INFO L208 MainTranslator]: Completed translation [2022-12-05 19:39:18,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:39:18 WrapperNode [2022-12-05 19:39:18,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 19:39:18,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 19:39:18,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 19:39:18,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 19:39:18,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:39:18" (1/1) ... [2022-12-05 19:39:18,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:39:18" (1/1) ... [2022-12-05 19:39:18,131 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 232 [2022-12-05 19:39:18,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 19:39:18,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 19:39:18,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 19:39:18,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 19:39:18,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:39:18" (1/1) ... [2022-12-05 19:39:18,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:39:18" (1/1) ... [2022-12-05 19:39:18,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:39:18" (1/1) ... [2022-12-05 19:39:18,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:39:18" (1/1) ... [2022-12-05 19:39:18,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:39:18" (1/1) ... [2022-12-05 19:39:18,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:39:18" (1/1) ... [2022-12-05 19:39:18,161 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:39:18" (1/1) ... [2022-12-05 19:39:18,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:39:18" (1/1) ... [2022-12-05 19:39:18,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 19:39:18,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 19:39:18,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 19:39:18,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 19:39:18,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:39:18" (1/1) ... [2022-12-05 19:39:18,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 19:39:18,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:39:18,217 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) [2022-12-05 19:39:18,283 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 [2022-12-05 19:39:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 19:39:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 19:39:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 19:39:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 19:39:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 19:39:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 19:39:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-05 19:39:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-05 19:39:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-05 19:39:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-05 19:39:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 19:39:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 19:39:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 19:39:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 19:39:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 19:39:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 19:39:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 19:39:18,296 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 19:39:18,405 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 19:39:18,407 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 19:39:18,717 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 19:39:18,773 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 19:39:18,773 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-05 19:39:18,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 07:39:18 BoogieIcfgContainer [2022-12-05 19:39:18,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 19:39:18,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 19:39:18,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 19:39:18,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 19:39:18,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 07:39:17" (1/3) ... [2022-12-05 19:39:18,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c0c2d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 07:39:18, skipping insertion in model container [2022-12-05 19:39:18,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:39:18" (2/3) ... [2022-12-05 19:39:18,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c0c2d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 07:39:18, skipping insertion in model container [2022-12-05 19:39:18,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 07:39:18" (3/3) ... [2022-12-05 19:39:18,780 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2022-12-05 19:39:18,792 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 19:39:18,793 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 19:39:18,793 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 19:39:18,842 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-05 19:39:18,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 280 transitions, 584 flow [2022-12-05 19:39:18,935 INFO L130 PetriNetUnfolder]: 27/277 cut-off events. [2022-12-05 19:39:18,935 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 19:39:18,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 277 events. 27/277 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 211 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 218. Up to 3 conditions per place. [2022-12-05 19:39:18,946 INFO L82 GeneralOperation]: Start removeDead. Operand has 263 places, 280 transitions, 584 flow [2022-12-05 19:39:18,955 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 250 places, 267 transitions, 552 flow [2022-12-05 19:39:18,962 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 19:39:18,966 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;@17ecc2ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 19:39:18,966 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 19:39:19,046 INFO L130 PetriNetUnfolder]: 27/266 cut-off events. [2022-12-05 19:39:19,046 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 19:39:19,046 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:39:19,047 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:39:19,049 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)] === [2022-12-05 19:39:19,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:39:19,053 INFO L85 PathProgramCache]: Analyzing trace with hash -2091134350, now seen corresponding path program 1 times [2022-12-05 19:39:19,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:39:19,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081057517] [2022-12-05 19:39:19,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:39:19,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:39:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:39:19,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:39:19,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:39:19,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081057517] [2022-12-05 19:39:19,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081057517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:39:19,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:39:19,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 19:39:19,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169408845] [2022-12-05 19:39:19,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:39:19,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 19:39:19,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:39:19,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 19:39:19,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-12-05 19:39:19,862 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 280 [2022-12-05 19:39:19,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 267 transitions, 552 flow. Second operand has 8 states, 8 states have (on average 164.625) internal successors, (1317), 8 states have internal predecessors, (1317), 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) [2022-12-05 19:39:19,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:39:19,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 280 [2022-12-05 19:39:19,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:39:20,122 INFO L130 PetriNetUnfolder]: 202/761 cut-off events. [2022-12-05 19:39:20,123 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2022-12-05 19:39:20,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 761 events. 202/761 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3239 event pairs, 103 based on Foata normal form. 12/616 useless extension candidates. Maximal degree in co-relation 803. Up to 344 conditions per place. [2022-12-05 19:39:20,133 INFO L137 encePairwiseOnDemand]: 244/280 looper letters, 91 selfloop transitions, 15 changer transitions 12/261 dead transitions. [2022-12-05 19:39:20,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 261 transitions, 776 flow [2022-12-05 19:39:20,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 19:39:20,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 19:39:20,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1382 transitions. [2022-12-05 19:39:20,148 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6169642857142857 [2022-12-05 19:39:20,149 INFO L175 Difference]: Start difference. First operand has 250 places, 267 transitions, 552 flow. Second operand 8 states and 1382 transitions. [2022-12-05 19:39:20,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 261 transitions, 776 flow [2022-12-05 19:39:20,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 261 transitions, 764 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-05 19:39:20,184 INFO L231 Difference]: Finished difference. Result has 252 places, 240 transitions, 534 flow [2022-12-05 19:39:20,186 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=534, PETRI_PLACES=252, PETRI_TRANSITIONS=240} [2022-12-05 19:39:20,188 INFO L294 CegarLoopForPetriNet]: 250 programPoint places, 2 predicate places. [2022-12-05 19:39:20,189 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 240 transitions, 534 flow [2022-12-05 19:39:20,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 164.625) internal successors, (1317), 8 states have internal predecessors, (1317), 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) [2022-12-05 19:39:20,189 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:39:20,190 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:39:20,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 19:39:20,190 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)] === [2022-12-05 19:39:20,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:39:20,192 INFO L85 PathProgramCache]: Analyzing trace with hash -232449454, now seen corresponding path program 1 times [2022-12-05 19:39:20,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:39:20,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670061605] [2022-12-05 19:39:20,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:39:20,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:39:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:39:20,965 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-05 19:39:20,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:39:20,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670061605] [2022-12-05 19:39:20,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670061605] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:39:20,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:39:20,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-12-05 19:39:20,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756542783] [2022-12-05 19:39:20,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:39:20,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-05 19:39:20,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:39:20,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-05 19:39:20,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2022-12-05 19:39:20,977 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 280 [2022-12-05 19:39:20,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 240 transitions, 534 flow. Second operand has 21 states, 21 states have (on average 139.85714285714286) internal successors, (2937), 21 states have internal predecessors, (2937), 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) [2022-12-05 19:39:20,980 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:39:20,980 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 280 [2022-12-05 19:39:20,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:39:22,143 INFO L130 PetriNetUnfolder]: 759/2464 cut-off events. [2022-12-05 19:39:22,144 INFO L131 PetriNetUnfolder]: For 16/21 co-relation queries the response was YES. [2022-12-05 19:39:22,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3590 conditions, 2464 events. 759/2464 cut-off events. For 16/21 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 17739 event pairs, 101 based on Foata normal form. 2/2120 useless extension candidates. Maximal degree in co-relation 3401. Up to 282 conditions per place. [2022-12-05 19:39:22,160 INFO L137 encePairwiseOnDemand]: 250/280 looper letters, 146 selfloop transitions, 31 changer transitions 20/323 dead transitions. [2022-12-05 19:39:22,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 323 transitions, 1105 flow [2022-12-05 19:39:22,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-05 19:39:22,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-12-05 19:39:22,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 4518 transitions. [2022-12-05 19:39:22,167 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5042410714285714 [2022-12-05 19:39:22,167 INFO L175 Difference]: Start difference. First operand has 252 places, 240 transitions, 534 flow. Second operand 32 states and 4518 transitions. [2022-12-05 19:39:22,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 323 transitions, 1105 flow [2022-12-05 19:39:22,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 323 transitions, 1081 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-05 19:39:22,175 INFO L231 Difference]: Finished difference. Result has 272 places, 251 transitions, 635 flow [2022-12-05 19:39:22,176 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=635, PETRI_PLACES=272, PETRI_TRANSITIONS=251} [2022-12-05 19:39:22,176 INFO L294 CegarLoopForPetriNet]: 250 programPoint places, 22 predicate places. [2022-12-05 19:39:22,176 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 251 transitions, 635 flow [2022-12-05 19:39:22,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 139.85714285714286) internal successors, (2937), 21 states have internal predecessors, (2937), 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) [2022-12-05 19:39:22,178 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:39:22,178 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:39:22,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 19:39:22,178 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)] === [2022-12-05 19:39:22,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:39:22,179 INFO L85 PathProgramCache]: Analyzing trace with hash -2032496315, now seen corresponding path program 1 times [2022-12-05 19:39:22,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:39:22,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408656628] [2022-12-05 19:39:22,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:39:22,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:39:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:39:22,444 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:39:22,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:39:22,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408656628] [2022-12-05 19:39:22,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408656628] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:39:22,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703758726] [2022-12-05 19:39:22,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:39:22,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:39:22,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:39:22,487 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) [2022-12-05 19:39:22,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-05 19:39:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:39:22,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-05 19:39:22,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:39:22,879 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:39:22,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:39:23,109 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:39:23,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703758726] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 19:39:23,109 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-05 19:39:23,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-12-05 19:39:23,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351100674] [2022-12-05 19:39:23,109 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-05 19:39:23,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-05 19:39:23,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:39:23,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-05 19:39:23,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-12-05 19:39:23,113 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 280 [2022-12-05 19:39:23,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 251 transitions, 635 flow. Second operand has 19 states, 19 states have (on average 205.26315789473685) internal successors, (3900), 19 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) [2022-12-05 19:39:23,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:39:23,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 280 [2022-12-05 19:39:23,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:39:23,848 INFO L130 PetriNetUnfolder]: 1489/3714 cut-off events. [2022-12-05 19:39:23,848 INFO L131 PetriNetUnfolder]: For 445/539 co-relation queries the response was YES. [2022-12-05 19:39:23,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6314 conditions, 3714 events. 1489/3714 cut-off events. For 445/539 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 24218 event pairs, 585 based on Foata normal form. 6/2827 useless extension candidates. Maximal degree in co-relation 6291. Up to 1092 conditions per place. [2022-12-05 19:39:23,870 INFO L137 encePairwiseOnDemand]: 251/280 looper letters, 133 selfloop transitions, 54 changer transitions 0/373 dead transitions. [2022-12-05 19:39:23,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 373 transitions, 1307 flow [2022-12-05 19:39:23,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-05 19:39:23,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-05 19:39:23,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4207 transitions. [2022-12-05 19:39:23,877 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.75125 [2022-12-05 19:39:23,877 INFO L175 Difference]: Start difference. First operand has 272 places, 251 transitions, 635 flow. Second operand 20 states and 4207 transitions. [2022-12-05 19:39:23,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 373 transitions, 1307 flow [2022-12-05 19:39:23,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 373 transitions, 1263 flow, removed 5 selfloop flow, removed 21 redundant places. [2022-12-05 19:39:23,887 INFO L231 Difference]: Finished difference. Result has 272 places, 288 transitions, 906 flow [2022-12-05 19:39:23,887 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=906, PETRI_PLACES=272, PETRI_TRANSITIONS=288} [2022-12-05 19:39:23,888 INFO L294 CegarLoopForPetriNet]: 250 programPoint places, 22 predicate places. [2022-12-05 19:39:23,888 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 288 transitions, 906 flow [2022-12-05 19:39:23,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 205.26315789473685) internal successors, (3900), 19 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) [2022-12-05 19:39:23,890 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:39:23,890 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:39:23,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-05 19:39:24,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:39:24,096 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)] === [2022-12-05 19:39:24,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:39:24,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1468673346, now seen corresponding path program 1 times [2022-12-05 19:39:24,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:39:24,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130466095] [2022-12-05 19:39:24,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:39:24,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:39:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:39:24,306 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:39:24,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:39:24,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130466095] [2022-12-05 19:39:24,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130466095] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:39:24,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426468682] [2022-12-05 19:39:24,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:39:24,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:39:24,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:39:24,308 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) [2022-12-05 19:39:24,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-05 19:39:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:39:24,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-05 19:39:24,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:39:24,607 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:39:24,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:39:24,796 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-05 19:39:24,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426468682] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 19:39:24,796 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-05 19:39:24,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-12-05 19:39:24,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012051951] [2022-12-05 19:39:24,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-05 19:39:24,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-05 19:39:24,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:39:24,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-05 19:39:24,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-12-05 19:39:24,801 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 280 [2022-12-05 19:39:24,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 288 transitions, 906 flow. Second operand has 19 states, 19 states have (on average 202.52631578947367) internal successors, (3848), 19 states have internal predecessors, (3848), 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) [2022-12-05 19:39:24,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:39:24,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 280 [2022-12-05 19:39:24,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:39:25,553 INFO L130 PetriNetUnfolder]: 1561/3863 cut-off events. [2022-12-05 19:39:25,553 INFO L131 PetriNetUnfolder]: For 1483/1604 co-relation queries the response was YES. [2022-12-05 19:39:25,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7635 conditions, 3863 events. 1561/3863 cut-off events. For 1483/1604 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 25714 event pairs, 773 based on Foata normal form. 35/3266 useless extension candidates. Maximal degree in co-relation 6321. Up to 1568 conditions per place. [2022-12-05 19:39:25,579 INFO L137 encePairwiseOnDemand]: 251/280 looper letters, 72 selfloop transitions, 30 changer transitions 89/374 dead transitions. [2022-12-05 19:39:25,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 374 transitions, 1574 flow [2022-12-05 19:39:25,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-05 19:39:25,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-05 19:39:25,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4147 transitions. [2022-12-05 19:39:25,586 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7405357142857143 [2022-12-05 19:39:25,586 INFO L175 Difference]: Start difference. First operand has 272 places, 288 transitions, 906 flow. Second operand 20 states and 4147 transitions. [2022-12-05 19:39:25,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 374 transitions, 1574 flow [2022-12-05 19:39:25,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 374 transitions, 1537 flow, removed 11 selfloop flow, removed 3 redundant places. [2022-12-05 19:39:25,593 INFO L231 Difference]: Finished difference. Result has 292 places, 263 transitions, 804 flow [2022-12-05 19:39:25,593 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=804, PETRI_PLACES=292, PETRI_TRANSITIONS=263} [2022-12-05 19:39:25,593 INFO L294 CegarLoopForPetriNet]: 250 programPoint places, 42 predicate places. [2022-12-05 19:39:25,593 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 263 transitions, 804 flow [2022-12-05 19:39:25,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 202.52631578947367) internal successors, (3848), 19 states have internal predecessors, (3848), 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) [2022-12-05 19:39:25,595 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:39:25,595 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:39:25,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-05 19:39:25,800 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,SelfDestructingSolverStorable3 [2022-12-05 19:39:25,800 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)] === [2022-12-05 19:39:25,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:39:25,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1413811203, now seen corresponding path program 2 times [2022-12-05 19:39:25,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:39:25,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669166882] [2022-12-05 19:39:25,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:39:25,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:39:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:39:26,024 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-05 19:39:26,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:39:26,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669166882] [2022-12-05 19:39:26,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669166882] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:39:26,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358474499] [2022-12-05 19:39:26,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 19:39:26,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:39:26,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:39:26,026 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) [2022-12-05 19:39:26,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-05 19:39:26,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-05 19:39:26,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 19:39:26,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-05 19:39:26,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:39:26,322 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-05 19:39:26,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:39:26,529 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-05 19:39:26,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358474499] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-05 19:39:26,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-05 19:39:26,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 19 [2022-12-05 19:39:26,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366508394] [2022-12-05 19:39:26,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:39:26,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 19:39:26,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:39:26,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 19:39:26,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-12-05 19:39:26,532 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 280 [2022-12-05 19:39:26,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 263 transitions, 804 flow. Second operand has 9 states, 9 states have (on average 208.55555555555554) internal successors, (1877), 9 states have internal predecessors, (1877), 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) [2022-12-05 19:39:26,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:39:26,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 280 [2022-12-05 19:39:26,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:39:26,910 INFO L130 PetriNetUnfolder]: 922/2376 cut-off events. [2022-12-05 19:39:26,910 INFO L131 PetriNetUnfolder]: For 1696/1742 co-relation queries the response was YES. [2022-12-05 19:39:26,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5193 conditions, 2376 events. 922/2376 cut-off events. For 1696/1742 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 15650 event pairs, 351 based on Foata normal form. 4/2061 useless extension candidates. Maximal degree in co-relation 4885. Up to 717 conditions per place. [2022-12-05 19:39:26,925 INFO L137 encePairwiseOnDemand]: 269/280 looper letters, 78 selfloop transitions, 10 changer transitions 0/275 dead transitions. [2022-12-05 19:39:26,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 275 transitions, 1032 flow [2022-12-05 19:39:26,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 19:39:26,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 19:39:26,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2094 transitions. [2022-12-05 19:39:26,928 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7478571428571429 [2022-12-05 19:39:26,928 INFO L175 Difference]: Start difference. First operand has 292 places, 263 transitions, 804 flow. Second operand 10 states and 2094 transitions. [2022-12-05 19:39:26,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 275 transitions, 1032 flow [2022-12-05 19:39:26,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 275 transitions, 951 flow, removed 17 selfloop flow, removed 18 redundant places. [2022-12-05 19:39:26,934 INFO L231 Difference]: Finished difference. Result has 268 places, 265 transitions, 772 flow [2022-12-05 19:39:26,935 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=772, PETRI_PLACES=268, PETRI_TRANSITIONS=265} [2022-12-05 19:39:26,936 INFO L294 CegarLoopForPetriNet]: 250 programPoint places, 18 predicate places. [2022-12-05 19:39:26,937 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 265 transitions, 772 flow [2022-12-05 19:39:26,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 208.55555555555554) internal successors, (1877), 9 states have internal predecessors, (1877), 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) [2022-12-05 19:39:26,937 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:39:26,937 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:39:26,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-05 19:39:27,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:39:27,143 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)] === [2022-12-05 19:39:27,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:39:27,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1734004931, now seen corresponding path program 1 times [2022-12-05 19:39:27,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:39:27,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928502267] [2022-12-05 19:39:27,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:39:27,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:39:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:39:27,315 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-05 19:39:27,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:39:27,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928502267] [2022-12-05 19:39:27,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928502267] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:39:27,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81382958] [2022-12-05 19:39:27,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:39:27,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:39:27,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:39:27,328 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) [2022-12-05 19:39:27,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-05 19:39:27,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:39:27,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-05 19:39:27,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:39:27,597 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-05 19:39:27,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:39:27,790 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-05 19:39:27,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81382958] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-05 19:39:27,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-05 19:39:27,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 19 [2022-12-05 19:39:27,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379641324] [2022-12-05 19:39:27,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:39:27,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 19:39:27,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:39:27,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 19:39:27,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-12-05 19:39:27,793 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 280 [2022-12-05 19:39:27,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 265 transitions, 772 flow. Second operand has 9 states, 9 states have (on average 204.77777777777777) internal successors, (1843), 9 states have internal predecessors, (1843), 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) [2022-12-05 19:39:27,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:39:27,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 280 [2022-12-05 19:39:27,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:39:28,244 INFO L130 PetriNetUnfolder]: 1352/3154 cut-off events. [2022-12-05 19:39:28,244 INFO L131 PetriNetUnfolder]: For 1676/2026 co-relation queries the response was YES. [2022-12-05 19:39:28,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6937 conditions, 3154 events. 1352/3154 cut-off events. For 1676/2026 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 21767 event pairs, 315 based on Foata normal form. 379/3317 useless extension candidates. Maximal degree in co-relation 6833. Up to 1235 conditions per place. [2022-12-05 19:39:28,262 INFO L137 encePairwiseOnDemand]: 269/280 looper letters, 85 selfloop transitions, 10 changer transitions 0/278 dead transitions. [2022-12-05 19:39:28,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 278 transitions, 1012 flow [2022-12-05 19:39:28,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 19:39:28,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 19:39:28,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2059 transitions. [2022-12-05 19:39:28,265 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7353571428571428 [2022-12-05 19:39:28,265 INFO L175 Difference]: Start difference. First operand has 268 places, 265 transitions, 772 flow. Second operand 10 states and 2059 transitions. [2022-12-05 19:39:28,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 278 transitions, 1012 flow [2022-12-05 19:39:28,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 278 transitions, 1001 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-12-05 19:39:28,273 INFO L231 Difference]: Finished difference. Result has 275 places, 266 transitions, 795 flow [2022-12-05 19:39:28,274 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=795, PETRI_PLACES=275, PETRI_TRANSITIONS=266} [2022-12-05 19:39:28,276 INFO L294 CegarLoopForPetriNet]: 250 programPoint places, 25 predicate places. [2022-12-05 19:39:28,276 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 266 transitions, 795 flow [2022-12-05 19:39:28,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 204.77777777777777) internal successors, (1843), 9 states have internal predecessors, (1843), 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) [2022-12-05 19:39:28,276 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:39:28,277 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:39:28,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-05 19:39:28,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:39:28,482 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)] === [2022-12-05 19:39:28,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:39:28,482 INFO L85 PathProgramCache]: Analyzing trace with hash -2075390340, now seen corresponding path program 1 times [2022-12-05 19:39:28,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:39:28,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812591758] [2022-12-05 19:39:28,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:39:28,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:39:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:39:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-05 19:39:28,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:39:28,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812591758] [2022-12-05 19:39:28,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812591758] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:39:28,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349134382] [2022-12-05 19:39:28,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:39:28,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:39:28,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:39:28,676 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) [2022-12-05 19:39:28,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-05 19:39:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:39:28,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-05 19:39:28,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:39:28,964 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-05 19:39:28,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:39:29,157 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-05 19:39:29,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349134382] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-05 19:39:29,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-05 19:39:29,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 19 [2022-12-05 19:39:29,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358522713] [2022-12-05 19:39:29,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:39:29,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 19:39:29,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:39:29,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 19:39:29,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-12-05 19:39:29,160 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 280 [2022-12-05 19:39:29,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 266 transitions, 795 flow. Second operand has 9 states, 9 states have (on average 207.66666666666666) internal successors, (1869), 9 states have internal predecessors, (1869), 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) [2022-12-05 19:39:29,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:39:29,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 280 [2022-12-05 19:39:29,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:39:29,459 INFO L130 PetriNetUnfolder]: 778/1808 cut-off events. [2022-12-05 19:39:29,460 INFO L131 PetriNetUnfolder]: For 1488/1900 co-relation queries the response was YES. [2022-12-05 19:39:29,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4097 conditions, 1808 events. 778/1808 cut-off events. For 1488/1900 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 10341 event pairs, 159 based on Foata normal form. 437/2056 useless extension candidates. Maximal degree in co-relation 3987. Up to 756 conditions per place. [2022-12-05 19:39:29,470 INFO L137 encePairwiseOnDemand]: 269/280 looper letters, 81 selfloop transitions, 10 changer transitions 0/275 dead transitions. [2022-12-05 19:39:29,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 275 transitions, 1009 flow [2022-12-05 19:39:29,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 19:39:29,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 19:39:29,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2085 transitions. [2022-12-05 19:39:29,474 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7446428571428572 [2022-12-05 19:39:29,474 INFO L175 Difference]: Start difference. First operand has 275 places, 266 transitions, 795 flow. Second operand 10 states and 2085 transitions. [2022-12-05 19:39:29,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 275 transitions, 1009 flow [2022-12-05 19:39:29,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 275 transitions, 992 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-12-05 19:39:29,480 INFO L231 Difference]: Finished difference. Result has 277 places, 265 transitions, 803 flow [2022-12-05 19:39:29,480 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=803, PETRI_PLACES=277, PETRI_TRANSITIONS=265} [2022-12-05 19:39:29,481 INFO L294 CegarLoopForPetriNet]: 250 programPoint places, 27 predicate places. [2022-12-05 19:39:29,481 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 265 transitions, 803 flow [2022-12-05 19:39:29,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 207.66666666666666) internal successors, (1869), 9 states have internal predecessors, (1869), 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) [2022-12-05 19:39:29,482 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:39:29,482 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:39:29,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-05 19:39:29,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:39:29,687 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)] === [2022-12-05 19:39:29,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:39:29,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1777038154, now seen corresponding path program 1 times [2022-12-05 19:39:29,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:39:29,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076925590] [2022-12-05 19:39:29,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:39:29,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:39:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:39:32,912 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-05 19:39:32,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:39:32,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076925590] [2022-12-05 19:39:32,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076925590] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:39:32,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646545661] [2022-12-05 19:39:32,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:39:32,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:39:32,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:39:32,920 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) [2022-12-05 19:39:32,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-05 19:39:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:39:33,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 72 conjunts are in the unsatisfiable core [2022-12-05 19:39:33,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:39:33,621 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:39:33,621 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 29 treesize of output 25 [2022-12-05 19:39:34,861 INFO L321 Elim1Store]: treesize reduction 34, result has 57.0 percent of original size [2022-12-05 19:39:34,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 69 [2022-12-05 19:39:36,271 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:39:36,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 196 treesize of output 224 [2022-12-05 19:39:36,496 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-05 19:39:36,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:39:39,883 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:39:39,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 73 treesize of output 87 [2022-12-05 19:39:39,896 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 28 treesize of output 24 [2022-12-05 19:39:39,908 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:39:39,908 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 43 treesize of output 43 [2022-12-05 19:39:39,952 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:39:39,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 126 [2022-12-05 19:39:40,871 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-05 19:39:40,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646545661] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 19:39:40,872 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-05 19:39:40,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 37, 29] total 110 [2022-12-05 19:39:40,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389354406] [2022-12-05 19:39:40,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-05 19:39:40,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-12-05 19:39:40,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:39:40,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-12-05 19:39:40,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=511, Invalid=11479, Unknown=0, NotChecked=0, Total=11990 [2022-12-05 19:39:40,888 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 280 [2022-12-05 19:39:40,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 265 transitions, 803 flow. Second operand has 110 states, 110 states have (on average 66.95454545454545) internal successors, (7365), 110 states have internal predecessors, (7365), 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) [2022-12-05 19:39:40,895 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:39:40,895 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 280 [2022-12-05 19:39:40,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:39:50,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-05 19:39:53,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-05 19:39:58,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-05 19:40:09,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-05 19:40:21,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-05 19:40:31,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-05 19:40:38,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-05 19:40:41,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-05 19:40:59,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-05 19:41:02,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-05 19:41:05,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-05 19:41:10,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-05 19:41:21,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-05 19:41:49,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-12-05 19:42:35,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-12-05 19:42:51,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-12-05 19:43:29,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-12-05 19:43:47,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-12-05 19:44:06,167 INFO L130 PetriNetUnfolder]: 108778/170175 cut-off events. [2022-12-05 19:44:06,167 INFO L131 PetriNetUnfolder]: For 126862/126862 co-relation queries the response was YES. [2022-12-05 19:44:06,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425467 conditions, 170175 events. 108778/170175 cut-off events. For 126862/126862 co-relation queries the response was YES. Maximal size of possible extension queue 3608. Compared 1496771 event pairs, 11118 based on Foata normal form. 6/159902 useless extension candidates. Maximal degree in co-relation 425333. Up to 17424 conditions per place. [2022-12-05 19:44:07,781 INFO L137 encePairwiseOnDemand]: 183/280 looper letters, 2279 selfloop transitions, 1151 changer transitions 120/3601 dead transitions. [2022-12-05 19:44:07,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 599 places, 3601 transitions, 18988 flow [2022-12-05 19:44:07,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 323 states. [2022-12-05 19:44:07,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2022-12-05 19:44:07,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 23761 transitions. [2022-12-05 19:44:07,813 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2627266696152145 [2022-12-05 19:44:07,813 INFO L175 Difference]: Start difference. First operand has 277 places, 265 transitions, 803 flow. Second operand 323 states and 23761 transitions. [2022-12-05 19:44:07,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 599 places, 3601 transitions, 18988 flow [2022-12-05 19:44:10,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 591 places, 3601 transitions, 18780 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-12-05 19:44:10,128 INFO L231 Difference]: Finished difference. Result has 725 places, 1530 transitions, 9617 flow [2022-12-05 19:44:10,129 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=323, PETRI_FLOW=9617, PETRI_PLACES=725, PETRI_TRANSITIONS=1530} [2022-12-05 19:44:10,129 INFO L294 CegarLoopForPetriNet]: 250 programPoint places, 475 predicate places. [2022-12-05 19:44:10,129 INFO L495 AbstractCegarLoop]: Abstraction has has 725 places, 1530 transitions, 9617 flow [2022-12-05 19:44:10,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 66.95454545454545) internal successors, (7365), 110 states have internal predecessors, (7365), 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) [2022-12-05 19:44:10,132 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:44:10,132 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:44:10,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-05 19:44:10,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:44:10,337 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)] === [2022-12-05 19:44:10,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:44:10,340 INFO L85 PathProgramCache]: Analyzing trace with hash 440216258, now seen corresponding path program 2 times [2022-12-05 19:44:10,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:44:10,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821744150] [2022-12-05 19:44:10,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:44:10,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:44:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:44:14,030 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-05 19:44:14,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:44:14,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821744150] [2022-12-05 19:44:14,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821744150] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:44:14,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748245986] [2022-12-05 19:44:14,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 19:44:14,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:44:14,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:44:14,033 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) [2022-12-05 19:44:14,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-05 19:44:14,182 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-05 19:44:14,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 19:44:14,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 123 conjunts are in the unsatisfiable core [2022-12-05 19:44:14,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:44:14,415 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 [2022-12-05 19:44:14,869 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 13 treesize of output 9 [2022-12-05 19:44:15,257 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 19:44:15,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 19:44:15,554 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 [2022-12-05 19:44:15,868 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 13 treesize of output 9 [2022-12-05 19:44:16,549 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-12-05 19:44:16,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 19:44:16,833 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 6 treesize of output 5 [2022-12-05 19:44:16,969 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 6 treesize of output 5 [2022-12-05 19:44:18,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 19:44:18,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 19:44:18,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 35 [2022-12-05 19:44:19,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 19:44:19,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 19:44:19,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 35 [2022-12-05 19:44:20,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 19:44:20,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 19:44:20,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 51 [2022-12-05 19:44:20,268 INFO L321 Elim1Store]: treesize reduction 72, result has 48.9 percent of original size [2022-12-05 19:44:20,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 102 [2022-12-05 19:44:25,426 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:44:25,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 318 treesize of output 1402 Received shutdown request... [2022-12-05 19:52:55,429 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-05 19:52:55,429 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 [2022-12-05 19:52:55,450 WARN L249 SmtUtils]: Removed 2 from assertion stack [2022-12-05 19:52:55,451 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 19:52:55,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-05 19:52:55,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:52:55,657 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 248 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 7 for 50ms.. [2022-12-05 19:52:55,658 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 19:52:55,658 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 19:52:55,658 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-05 19:52:55,658 INFO L458 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2022-12-05 19:52:55,661 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 19:52:55,661 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 19:52:55,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 07:52:55 BasicIcfg [2022-12-05 19:52:55,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 19:52:55,664 INFO L158 Benchmark]: Toolchain (without parser) took 817751.61ms. Allocated memory was 196.1MB in the beginning and 3.7GB in the end (delta: 3.5GB). Free memory was 171.1MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 3.9GB. Max. memory is 8.0GB. [2022-12-05 19:52:55,664 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 196.1MB. Free memory is still 172.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 19:52:55,664 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.50ms. Allocated memory is still 196.1MB. Free memory was 171.1MB in the beginning and 158.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-05 19:52:55,664 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.83ms. Allocated memory is still 196.1MB. Free memory was 158.0MB in the beginning and 155.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 19:52:55,664 INFO L158 Benchmark]: Boogie Preprocessor took 45.09ms. Allocated memory is still 196.1MB. Free memory was 155.9MB in the beginning and 153.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 19:52:55,664 INFO L158 Benchmark]: RCFGBuilder took 596.40ms. Allocated memory is still 196.1MB. Free memory was 153.8MB in the beginning and 122.9MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-12-05 19:52:55,665 INFO L158 Benchmark]: TraceAbstraction took 816887.23ms. Allocated memory was 196.1MB in the beginning and 3.7GB in the end (delta: 3.5GB). Free memory was 122.3MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. [2022-12-05 19:52:55,666 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 196.1MB. Free memory is still 172.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 164.50ms. Allocated memory is still 196.1MB. Free memory was 171.1MB in the beginning and 158.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.83ms. Allocated memory is still 196.1MB. Free memory was 158.0MB in the beginning and 155.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.09ms. Allocated memory is still 196.1MB. Free memory was 155.9MB in the beginning and 153.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 596.40ms. Allocated memory is still 196.1MB. Free memory was 153.8MB in the beginning and 122.9MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * TraceAbstraction took 816887.23ms. Allocated memory was 196.1MB in the beginning and 3.7GB in the end (delta: 3.5GB). Free memory was 122.3MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 248 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 7 for 50ms.. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 248 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 7 for 50ms.. - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 248 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 7 for 50ms.. - TimeoutResultAtElement [Line: 106]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 248 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 7 for 50ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 299 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 816.8s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 273.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 18 mSolverCounterUnknown, 17566 SdHoareTripleChecker+Valid, 50.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17566 mSDsluCounter, 12463 SdHoareTripleChecker+Invalid, 48.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11940 mSDsCounter, 464 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22940 IncrementalHoareTripleChecker+Invalid, 23422 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 464 mSolverCounterUnsat, 523 mSDtfsCounter, 22940 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3302 GetRequests, 2676 SyntacticMatches, 10 SemanticMatches, 616 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69740 ImplicationChecksByTransitivity, 198.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9617occurred in iteration=8, InterpolantAutomatonStates: 433, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 15.1s InterpolantComputationTime, 3161 NumberOfCodeBlocks, 3161 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 4528 ConstructedInterpolants, 31 QuantifiedInterpolants, 19145 SizeOfPredicates, 84 NumberOfNonLiveVariables, 3164 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 284/375 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