/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/parallel-parallel-sum-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 19:06:32,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 19:06:32,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 19:06:32,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 19:06:32,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 19:06:32,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 19:06:32,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 19:06:32,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 19:06:32,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 19:06:32,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 19:06:32,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 19:06:32,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 19:06:32,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 19:06:32,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 19:06:32,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 19:06:32,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 19:06:32,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 19:06:32,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 19:06:32,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 19:06:32,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 19:06:32,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 19:06:32,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 19:06:32,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 19:06:32,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 19:06:32,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 19:06:32,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 19:06:32,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 19:06:32,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 19:06:32,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 19:06:32,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 19:06:32,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 19:06:32,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 19:06:32,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 19:06:32,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 19:06:32,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 19:06:32,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 19:06:32,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 19:06:32,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 19:06:32,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 19:06:32,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 19:06:32,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 19:06:32,238 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 19:06:32,282 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 19:06:32,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 19:06:32,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 19:06:32,284 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 19:06:32,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 19:06:32,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 19:06:32,285 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 19:06:32,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 19:06:32,285 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 19:06:32,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 19:06:32,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 19:06:32,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 19:06:32,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 19:06:32,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 19:06:32,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 19:06:32,297 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 19:06:32,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 19:06:32,297 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 19:06:32,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 19:06:32,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 19:06:32,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 19:06:32,298 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 19:06:32,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 19:06:32,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 19:06:32,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 19:06:32,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 19:06:32,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 19:06:32,299 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 19:06:32,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 19:06:32,299 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 19:06:32,299 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 19:06:32,299 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 19:06:32,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 19:06:32,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 19:06:32,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 19:06:32,579 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 19:06:32,579 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 19:06:32,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c [2022-12-05 19:06:33,633 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 19:06:33,855 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 19:06:33,856 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c [2022-12-05 19:06:33,876 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2afaf76a4/1336353646964e26a9bce64b5f283193/FLAGd45c2deb8 [2022-12-05 19:06:33,888 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2afaf76a4/1336353646964e26a9bce64b5f283193 [2022-12-05 19:06:33,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 19:06:33,891 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 19:06:33,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 19:06:33,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 19:06:33,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 19:06:33,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 07:06:33" (1/1) ... [2022-12-05 19:06:33,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68206d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:06:33, skipping insertion in model container [2022-12-05 19:06:33,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 07:06:33" (1/1) ... [2022-12-05 19:06:33,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 19:06:33,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 19:06:34,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,057 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,072 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,072 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,076 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-12-05 19:06:34,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 19:06:34,089 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 19:06:34,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,103 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,105 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,105 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,105 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:06:34,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:06:34,113 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-12-05 19:06:34,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 19:06:34,125 INFO L208 MainTranslator]: Completed translation [2022-12-05 19:06:34,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:06:34 WrapperNode [2022-12-05 19:06:34,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 19:06:34,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 19:06:34,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 19:06:34,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 19:06:34,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:06:34" (1/1) ... [2022-12-05 19:06:34,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:06:34" (1/1) ... [2022-12-05 19:06:34,182 INFO L138 Inliner]: procedures = 29, calls = 88, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 386 [2022-12-05 19:06:34,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 19:06:34,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 19:06:34,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 19:06:34,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 19:06:34,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:06:34" (1/1) ... [2022-12-05 19:06:34,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:06:34" (1/1) ... [2022-12-05 19:06:34,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:06:34" (1/1) ... [2022-12-05 19:06:34,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:06:34" (1/1) ... [2022-12-05 19:06:34,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:06:34" (1/1) ... [2022-12-05 19:06:34,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:06:34" (1/1) ... [2022-12-05 19:06:34,205 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:06:34" (1/1) ... [2022-12-05 19:06:34,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:06:34" (1/1) ... [2022-12-05 19:06:34,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 19:06:34,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 19:06:34,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 19:06:34,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 19:06:34,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:06:34" (1/1) ... [2022-12-05 19:06:34,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 19:06:34,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:06:34,248 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 19:06:34,250 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 19:06:34,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 19:06:34,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 19:06:34,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 19:06:34,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 19:06:34,294 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 19:06:34,295 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 19:06:34,295 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-05 19:06:34,300 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-05 19:06:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-05 19:06:34,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-05 19:06:34,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-05 19:06:34,303 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-05 19:06:34,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 19:06:34,304 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-05 19:06:34,304 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-05 19:06:34,307 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-05 19:06:34,307 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-05 19:06:34,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 19:06:34,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 19:06:34,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 19:06:34,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 19:06:34,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 19:06:34,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 19:06:34,310 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 19:06:34,404 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 19:06:34,405 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 19:06:34,755 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 19:06:34,923 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 19:06:34,923 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-05 19:06:34,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 07:06:34 BoogieIcfgContainer [2022-12-05 19:06:34,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 19:06:34,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 19:06:34,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 19:06:34,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 19:06:34,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 07:06:33" (1/3) ... [2022-12-05 19:06:34,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7da4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 07:06:34, skipping insertion in model container [2022-12-05 19:06:34,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:06:34" (2/3) ... [2022-12-05 19:06:34,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7da4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 07:06:34, skipping insertion in model container [2022-12-05 19:06:34,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 07:06:34" (3/3) ... [2022-12-05 19:06:34,933 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2022-12-05 19:06:34,944 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 19:06:34,945 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 19:06:34,945 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 19:06:35,041 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-12-05 19:06:35,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 289 places, 293 transitions, 658 flow [2022-12-05 19:06:35,172 INFO L130 PetriNetUnfolder]: 21/249 cut-off events. [2022-12-05 19:06:35,173 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-05 19:06:35,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 249 events. 21/249 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 283 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 212. Up to 3 conditions per place. [2022-12-05 19:06:35,180 INFO L82 GeneralOperation]: Start removeDead. Operand has 289 places, 293 transitions, 658 flow [2022-12-05 19:06:35,188 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 241 transitions, 530 flow [2022-12-05 19:06:35,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 19:06:35,203 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;@7fcd1817, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 19:06:35,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-12-05 19:06:35,251 INFO L130 PetriNetUnfolder]: 21/240 cut-off events. [2022-12-05 19:06:35,251 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-05 19:06:35,251 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:06:35,252 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] [2022-12-05 19:06:35,253 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-05 19:06:35,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:06:35,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1670492450, now seen corresponding path program 1 times [2022-12-05 19:06:35,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:06:35,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903849821] [2022-12-05 19:06:35,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:06:35,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:06:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:06:35,568 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 19:06:35,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:06:35,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903849821] [2022-12-05 19:06:35,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903849821] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:06:35,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:06:35,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 19:06:35,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210360185] [2022-12-05 19:06:35,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:06:35,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 19:06:35,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:06:35,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 19:06:35,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 19:06:35,603 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 297 [2022-12-05 19:06:35,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 241 transitions, 530 flow. Second operand has 2 states, 2 states have (on average 255.0) internal successors, (510), 2 states have internal predecessors, (510), 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 19:06:35,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:06:35,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 297 [2022-12-05 19:06:35,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:06:35,805 INFO L130 PetriNetUnfolder]: 409/1076 cut-off events. [2022-12-05 19:06:35,806 INFO L131 PetriNetUnfolder]: For 344/353 co-relation queries the response was YES. [2022-12-05 19:06:35,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1960 conditions, 1076 events. 409/1076 cut-off events. For 344/353 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4831 event pairs, 192 based on Foata normal form. 171/1111 useless extension candidates. Maximal degree in co-relation 1721. Up to 553 conditions per place. [2022-12-05 19:06:35,819 INFO L137 encePairwiseOnDemand]: 285/297 looper letters, 26 selfloop transitions, 0 changer transitions 5/229 dead transitions. [2022-12-05 19:06:35,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 229 transitions, 558 flow [2022-12-05 19:06:35,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 19:06:35,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 19:06:35,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 530 transitions. [2022-12-05 19:06:35,838 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8922558922558923 [2022-12-05 19:06:35,839 INFO L175 Difference]: Start difference. First operand has 239 places, 241 transitions, 530 flow. Second operand 2 states and 530 transitions. [2022-12-05 19:06:35,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 229 transitions, 558 flow [2022-12-05 19:06:35,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 229 transitions, 526 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-12-05 19:06:35,848 INFO L231 Difference]: Finished difference. Result has 228 places, 224 transitions, 464 flow [2022-12-05 19:06:35,849 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=464, PETRI_PLACES=228, PETRI_TRANSITIONS=224} [2022-12-05 19:06:35,852 INFO L294 CegarLoopForPetriNet]: 239 programPoint places, -11 predicate places. [2022-12-05 19:06:35,852 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 224 transitions, 464 flow [2022-12-05 19:06:35,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 255.0) internal successors, (510), 2 states have internal predecessors, (510), 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 19:06:35,852 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:06:35,853 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] [2022-12-05 19:06:35,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 19:06:35,853 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-05 19:06:35,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:06:35,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1715329474, now seen corresponding path program 1 times [2022-12-05 19:06:35,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:06:35,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567149594] [2022-12-05 19:06:35,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:06:35,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:06:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:06:36,785 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 19:06:36,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:06:36,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567149594] [2022-12-05 19:06:36,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567149594] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:06:36,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:06:36,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-05 19:06:36,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229716442] [2022-12-05 19:06:36,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:06:36,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 19:06:36,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:06:36,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 19:06:36,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-12-05 19:06:36,789 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 297 [2022-12-05 19:06:36,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 224 transitions, 464 flow. Second operand has 14 states, 14 states have (on average 194.14285714285714) internal successors, (2718), 14 states have internal predecessors, (2718), 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 19:06:36,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:06:36,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 297 [2022-12-05 19:06:36,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:06:38,386 INFO L130 PetriNetUnfolder]: 2312/5741 cut-off events. [2022-12-05 19:06:38,387 INFO L131 PetriNetUnfolder]: For 502/513 co-relation queries the response was YES. [2022-12-05 19:06:38,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9537 conditions, 5741 events. 2312/5741 cut-off events. For 502/513 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 45560 event pairs, 448 based on Foata normal form. 148/5143 useless extension candidates. Maximal degree in co-relation 9534. Up to 744 conditions per place. [2022-12-05 19:06:38,482 INFO L137 encePairwiseOnDemand]: 279/297 looper letters, 134 selfloop transitions, 9 changer transitions 191/483 dead transitions. [2022-12-05 19:06:38,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 483 transitions, 1776 flow [2022-12-05 19:06:38,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-05 19:06:38,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-05 19:06:38,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4523 transitions. [2022-12-05 19:06:38,489 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.692225283134374 [2022-12-05 19:06:38,489 INFO L175 Difference]: Start difference. First operand has 228 places, 224 transitions, 464 flow. Second operand 22 states and 4523 transitions. [2022-12-05 19:06:38,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 483 transitions, 1776 flow [2022-12-05 19:06:38,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 483 transitions, 1776 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 19:06:38,496 INFO L231 Difference]: Finished difference. Result has 259 places, 227 transitions, 553 flow [2022-12-05 19:06:38,496 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=553, PETRI_PLACES=259, PETRI_TRANSITIONS=227} [2022-12-05 19:06:38,497 INFO L294 CegarLoopForPetriNet]: 239 programPoint places, 20 predicate places. [2022-12-05 19:06:38,497 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 227 transitions, 553 flow [2022-12-05 19:06:38,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 194.14285714285714) internal successors, (2718), 14 states have internal predecessors, (2718), 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 19:06:38,498 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:06:38,499 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] [2022-12-05 19:06:38,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 19:06:38,499 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-05 19:06:38,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:06:38,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1808195354, now seen corresponding path program 1 times [2022-12-05 19:06:38,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:06:38,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377569966] [2022-12-05 19:06:38,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:06:38,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:06:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:06:39,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 19:06:39,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:06:39,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377569966] [2022-12-05 19:06:39,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377569966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:06:39,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:06:39,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-05 19:06:39,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419494994] [2022-12-05 19:06:39,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:06:39,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-05 19:06:39,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:06:39,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-05 19:06:39,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-05 19:06:39,096 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 297 [2022-12-05 19:06:39,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 227 transitions, 553 flow. Second operand has 10 states, 10 states have (on average 214.5) internal successors, (2145), 10 states have internal predecessors, (2145), 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 19:06:39,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:06:39,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 297 [2022-12-05 19:06:39,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:06:39,906 INFO L130 PetriNetUnfolder]: 1581/4157 cut-off events. [2022-12-05 19:06:39,906 INFO L131 PetriNetUnfolder]: For 5179/5238 co-relation queries the response was YES. [2022-12-05 19:06:39,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8746 conditions, 4157 events. 1581/4157 cut-off events. For 5179/5238 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 30840 event pairs, 279 based on Foata normal form. 5/3659 useless extension candidates. Maximal degree in co-relation 8727. Up to 1148 conditions per place. [2022-12-05 19:06:39,936 INFO L137 encePairwiseOnDemand]: 284/297 looper letters, 111 selfloop transitions, 13 changer transitions 8/299 dead transitions. [2022-12-05 19:06:39,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 299 transitions, 1059 flow [2022-12-05 19:06:39,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 19:06:39,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 19:06:39,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2231 transitions. [2022-12-05 19:06:39,940 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7511784511784512 [2022-12-05 19:06:39,940 INFO L175 Difference]: Start difference. First operand has 259 places, 227 transitions, 553 flow. Second operand 10 states and 2231 transitions. [2022-12-05 19:06:39,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 299 transitions, 1059 flow [2022-12-05 19:06:39,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 299 transitions, 989 flow, removed 33 selfloop flow, removed 12 redundant places. [2022-12-05 19:06:39,949 INFO L231 Difference]: Finished difference. Result has 245 places, 234 transitions, 591 flow [2022-12-05 19:06:39,949 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=591, PETRI_PLACES=245, PETRI_TRANSITIONS=234} [2022-12-05 19:06:39,950 INFO L294 CegarLoopForPetriNet]: 239 programPoint places, 6 predicate places. [2022-12-05 19:06:39,950 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 234 transitions, 591 flow [2022-12-05 19:06:39,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 214.5) internal successors, (2145), 10 states have internal predecessors, (2145), 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 19:06:39,951 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:06:39,951 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] [2022-12-05 19:06:39,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 19:06:39,951 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-05 19:06:39,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:06:39,952 INFO L85 PathProgramCache]: Analyzing trace with hash 407887761, now seen corresponding path program 1 times [2022-12-05 19:06:39,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:06:39,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427703970] [2022-12-05 19:06:39,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:06:39,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:06:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:06:40,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 19:06:40,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:06:40,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427703970] [2022-12-05 19:06:40,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427703970] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:06:40,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:06:40,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-05 19:06:40,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925816099] [2022-12-05 19:06:40,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:06:40,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-05 19:06:40,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:06:40,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-05 19:06:40,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-05 19:06:40,545 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 297 [2022-12-05 19:06:40,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 234 transitions, 591 flow. Second operand has 10 states, 10 states have (on average 214.5) internal successors, (2145), 10 states have internal predecessors, (2145), 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 19:06:40,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:06:40,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 297 [2022-12-05 19:06:40,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:06:41,227 INFO L130 PetriNetUnfolder]: 1580/4078 cut-off events. [2022-12-05 19:06:41,228 INFO L131 PetriNetUnfolder]: For 2087/2133 co-relation queries the response was YES. [2022-12-05 19:06:41,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8422 conditions, 4078 events. 1580/4078 cut-off events. For 2087/2133 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 29841 event pairs, 212 based on Foata normal form. 13/3601 useless extension candidates. Maximal degree in co-relation 8407. Up to 1148 conditions per place. [2022-12-05 19:06:41,255 INFO L137 encePairwiseOnDemand]: 284/297 looper letters, 105 selfloop transitions, 15 changer transitions 8/295 dead transitions. [2022-12-05 19:06:41,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 295 transitions, 1055 flow [2022-12-05 19:06:41,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 19:06:41,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 19:06:41,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2225 transitions. [2022-12-05 19:06:41,259 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7491582491582491 [2022-12-05 19:06:41,259 INFO L175 Difference]: Start difference. First operand has 245 places, 234 transitions, 591 flow. Second operand 10 states and 2225 transitions. [2022-12-05 19:06:41,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 295 transitions, 1055 flow [2022-12-05 19:06:41,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 295 transitions, 1030 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-12-05 19:06:41,267 INFO L231 Difference]: Finished difference. Result has 250 places, 237 transitions, 644 flow [2022-12-05 19:06:41,267 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=644, PETRI_PLACES=250, PETRI_TRANSITIONS=237} [2022-12-05 19:06:41,268 INFO L294 CegarLoopForPetriNet]: 239 programPoint places, 11 predicate places. [2022-12-05 19:06:41,268 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 237 transitions, 644 flow [2022-12-05 19:06:41,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 214.5) internal successors, (2145), 10 states have internal predecessors, (2145), 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 19:06:41,269 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:06:41,269 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] [2022-12-05 19:06:41,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 19:06:41,270 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-05 19:06:41,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:06:41,270 INFO L85 PathProgramCache]: Analyzing trace with hash -2092782364, now seen corresponding path program 1 times [2022-12-05 19:06:41,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:06:41,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558322000] [2022-12-05 19:06:41,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:06:41,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:06:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:06:41,956 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:06:41,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:06:41,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558322000] [2022-12-05 19:06:41,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558322000] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:06:41,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965156950] [2022-12-05 19:06:41,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:06:41,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:06:41,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:06:41,960 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 19:06:42,035 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 19:06:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:06:42,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-05 19:06:42,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:06:42,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 19:06:42,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:06:42,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 19:06:42,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965156950] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 19:06:42,941 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-05 19:06:42,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 30 [2022-12-05 19:06:42,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527427937] [2022-12-05 19:06:42,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-05 19:06:42,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-05 19:06:42,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:06:42,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-05 19:06:42,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=774, Unknown=0, NotChecked=0, Total=870 [2022-12-05 19:06:42,947 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 297 [2022-12-05 19:06:42,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 237 transitions, 644 flow. Second operand has 30 states, 30 states have (on average 189.96666666666667) internal successors, (5699), 30 states have internal predecessors, (5699), 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 19:06:42,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:06:42,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 297 [2022-12-05 19:06:42,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:06:49,247 INFO L130 PetriNetUnfolder]: 7249/16519 cut-off events. [2022-12-05 19:06:49,248 INFO L131 PetriNetUnfolder]: For 10735/10750 co-relation queries the response was YES. [2022-12-05 19:06:49,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36242 conditions, 16519 events. 7249/16519 cut-off events. For 10735/10750 co-relation queries the response was YES. Maximal size of possible extension queue 577. Compared 152588 event pairs, 453 based on Foata normal form. 177/14684 useless extension candidates. Maximal degree in co-relation 36225. Up to 1736 conditions per place. [2022-12-05 19:06:49,358 INFO L137 encePairwiseOnDemand]: 270/297 looper letters, 561 selfloop transitions, 103 changer transitions 410/1218 dead transitions. [2022-12-05 19:06:49,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 1218 transitions, 6279 flow [2022-12-05 19:06:49,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-12-05 19:06:49,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2022-12-05 19:06:49,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 14009 transitions. [2022-12-05 19:06:49,379 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6738335738335738 [2022-12-05 19:06:49,379 INFO L175 Difference]: Start difference. First operand has 250 places, 237 transitions, 644 flow. Second operand 70 states and 14009 transitions. [2022-12-05 19:06:49,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 1218 transitions, 6279 flow [2022-12-05 19:06:49,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 1218 transitions, 6119 flow, removed 45 selfloop flow, removed 7 redundant places. [2022-12-05 19:06:49,407 INFO L231 Difference]: Finished difference. Result has 356 places, 325 transitions, 1501 flow [2022-12-05 19:06:49,408 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=619, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=70, PETRI_FLOW=1501, PETRI_PLACES=356, PETRI_TRANSITIONS=325} [2022-12-05 19:06:49,409 INFO L294 CegarLoopForPetriNet]: 239 programPoint places, 117 predicate places. [2022-12-05 19:06:49,409 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 325 transitions, 1501 flow [2022-12-05 19:06:49,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 189.96666666666667) internal successors, (5699), 30 states have internal predecessors, (5699), 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 19:06:49,411 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:06:49,411 INFO L213 CegarLoopForPetriNet]: trace histogram [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] [2022-12-05 19:06:49,420 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 19:06:49,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:06:49,619 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-05 19:06:49,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:06:49,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1686135506, now seen corresponding path program 2 times [2022-12-05 19:06:49,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:06:49,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706189823] [2022-12-05 19:06:49,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:06:49,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:06:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:06:50,186 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 19:06:50,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:06:50,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706189823] [2022-12-05 19:06:50,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706189823] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:06:50,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608609227] [2022-12-05 19:06:50,187 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 19:06:50,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:06:50,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:06:50,203 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 19:06:50,204 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 19:06:50,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-05 19:06:50,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 19:06:50,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-05 19:06:50,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:06:50,641 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 19:06:50,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:06:50,870 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 19:06:50,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608609227] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-05 19:06:50,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-05 19:06:50,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [15, 13] total 33 [2022-12-05 19:06:50,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473512818] [2022-12-05 19:06:50,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:06:50,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-05 19:06:50,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:06:50,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-05 19:06:50,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=923, Unknown=0, NotChecked=0, Total=1056 [2022-12-05 19:06:50,876 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 297 [2022-12-05 19:06:50,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 325 transitions, 1501 flow. Second operand has 13 states, 13 states have (on average 202.69230769230768) internal successors, (2635), 13 states have internal predecessors, (2635), 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 19:06:50,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:06:50,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 297 [2022-12-05 19:06:50,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:06:53,330 INFO L130 PetriNetUnfolder]: 5230/12506 cut-off events. [2022-12-05 19:06:53,330 INFO L131 PetriNetUnfolder]: For 66498/66562 co-relation queries the response was YES. [2022-12-05 19:06:53,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40274 conditions, 12506 events. 5230/12506 cut-off events. For 66498/66562 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 113143 event pairs, 1311 based on Foata normal form. 37/11075 useless extension candidates. Maximal degree in co-relation 40213. Up to 6425 conditions per place. [2022-12-05 19:06:53,465 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 157 selfloop transitions, 24 changer transitions 47/390 dead transitions. [2022-12-05 19:06:53,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 390 transitions, 2413 flow [2022-12-05 19:06:53,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-05 19:06:53,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-05 19:06:53,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2894 transitions. [2022-12-05 19:06:53,469 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.696007696007696 [2022-12-05 19:06:53,469 INFO L175 Difference]: Start difference. First operand has 356 places, 325 transitions, 1501 flow. Second operand 14 states and 2894 transitions. [2022-12-05 19:06:53,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 390 transitions, 2413 flow [2022-12-05 19:06:53,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 390 transitions, 2174 flow, removed 68 selfloop flow, removed 29 redundant places. [2022-12-05 19:06:53,732 INFO L231 Difference]: Finished difference. Result has 306 places, 323 transitions, 1374 flow [2022-12-05 19:06:53,732 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=1299, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1374, PETRI_PLACES=306, PETRI_TRANSITIONS=323} [2022-12-05 19:06:53,733 INFO L294 CegarLoopForPetriNet]: 239 programPoint places, 67 predicate places. [2022-12-05 19:06:53,733 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 323 transitions, 1374 flow [2022-12-05 19:06:53,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 202.69230769230768) internal successors, (2635), 13 states have internal predecessors, (2635), 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 19:06:53,734 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:06:53,734 INFO L213 CegarLoopForPetriNet]: trace histogram [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] [2022-12-05 19:06:53,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-05 19:06:53,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-05 19:06:53,940 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-05 19:06:53,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:06:53,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1299153866, now seen corresponding path program 1 times [2022-12-05 19:06:53,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:06:53,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855346449] [2022-12-05 19:06:53,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:06:53,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:06:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:06:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 19:06:54,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:06:54,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855346449] [2022-12-05 19:06:54,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855346449] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:06:54,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984907537] [2022-12-05 19:06:54,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:06:54,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:06:54,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:06:54,491 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 19:06:54,537 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 19:06:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:06:54,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-05 19:06:54,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:06:55,181 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-05 19:06:55,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:06:55,451 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-05 19:06:55,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984907537] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 19:06:55,451 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-05 19:06:55,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 31 [2022-12-05 19:06:55,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764929549] [2022-12-05 19:06:55,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-05 19:06:55,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-05 19:06:55,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:06:55,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-05 19:06:55,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=841, Unknown=0, NotChecked=0, Total=930 [2022-12-05 19:06:55,455 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 297 [2022-12-05 19:06:55,459 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 323 transitions, 1374 flow. Second operand has 31 states, 31 states have (on average 189.90322580645162) internal successors, (5887), 31 states have internal predecessors, (5887), 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 19:06:55,459 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:06:55,459 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 297 [2022-12-05 19:06:55,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:07:00,249 INFO L130 PetriNetUnfolder]: 6739/14746 cut-off events. [2022-12-05 19:07:00,249 INFO L131 PetriNetUnfolder]: For 48017/48032 co-relation queries the response was YES. [2022-12-05 19:07:00,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44783 conditions, 14746 events. 6739/14746 cut-off events. For 48017/48032 co-relation queries the response was YES. Maximal size of possible extension queue 495. Compared 130092 event pairs, 563 based on Foata normal form. 132/13140 useless extension candidates. Maximal degree in co-relation 44737. Up to 2586 conditions per place. [2022-12-05 19:07:00,380 INFO L137 encePairwiseOnDemand]: 273/297 looper letters, 278 selfloop transitions, 54 changer transitions 213/689 dead transitions. [2022-12-05 19:07:00,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 689 transitions, 4664 flow [2022-12-05 19:07:00,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-05 19:07:00,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-05 19:07:00,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 7495 transitions. [2022-12-05 19:07:00,387 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6640971114655325 [2022-12-05 19:07:00,387 INFO L175 Difference]: Start difference. First operand has 306 places, 323 transitions, 1374 flow. Second operand 38 states and 7495 transitions. [2022-12-05 19:07:00,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 689 transitions, 4664 flow [2022-12-05 19:07:00,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 689 transitions, 4330 flow, removed 137 selfloop flow, removed 19 redundant places. [2022-12-05 19:07:00,524 INFO L231 Difference]: Finished difference. Result has 341 places, 305 transitions, 1417 flow [2022-12-05 19:07:00,525 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=1219, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=1417, PETRI_PLACES=341, PETRI_TRANSITIONS=305} [2022-12-05 19:07:00,525 INFO L294 CegarLoopForPetriNet]: 239 programPoint places, 102 predicate places. [2022-12-05 19:07:00,525 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 305 transitions, 1417 flow [2022-12-05 19:07:00,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 189.90322580645162) internal successors, (5887), 31 states have internal predecessors, (5887), 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 19:07:00,527 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:07:00,527 INFO L213 CegarLoopForPetriNet]: trace histogram [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] [2022-12-05 19:07:00,547 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 19:07:00,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:07:00,733 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-05 19:07:00,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:07:00,733 INFO L85 PathProgramCache]: Analyzing trace with hash 565056454, now seen corresponding path program 1 times [2022-12-05 19:07:00,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:07:00,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361493799] [2022-12-05 19:07:00,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:07:00,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:07:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:07:02,661 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-05 19:07:02,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:07:02,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361493799] [2022-12-05 19:07:02,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361493799] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:07:02,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411459903] [2022-12-05 19:07:02,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:07:02,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:07:02,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:07:02,663 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 19:07:02,699 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 19:07:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:07:02,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 111 conjunts are in the unsatisfiable core [2022-12-05 19:07:02,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:07:03,003 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 19:07:03,811 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 19:07:03,811 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 19:07:03,836 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 19:07:03,837 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 11 treesize of output 11 [2022-12-05 19:07:04,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-12-05 19:07:04,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-05 19:07:05,164 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:07:05,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 19:07:05,935 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 19:07:05,936 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 60 treesize of output 49 [2022-12-05 19:07:05,939 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 20 treesize of output 13 [2022-12-05 19:07:05,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-05 19:07:05,956 INFO L321 Elim1Store]: treesize reduction 10, result has 28.6 percent of original size [2022-12-05 19:07:05,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 15 [2022-12-05 19:07:07,204 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:07:07,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411459903] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 19:07:07,205 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-05 19:07:07,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 32, 29] total 68 [2022-12-05 19:07:07,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874122832] [2022-12-05 19:07:07,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-05 19:07:07,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-12-05 19:07:07,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:07:07,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-12-05 19:07:07,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=4231, Unknown=4, NotChecked=0, Total=4556 [2022-12-05 19:07:07,217 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 297 [2022-12-05 19:07:07,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 305 transitions, 1417 flow. Second operand has 68 states, 68 states have (on average 139.01470588235293) internal successors, (9453), 68 states have internal predecessors, (9453), 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 19:07:07,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:07:07,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 297 [2022-12-05 19:07:07,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:08:30,176 INFO L130 PetriNetUnfolder]: 162914/287433 cut-off events. [2022-12-05 19:08:30,177 INFO L131 PetriNetUnfolder]: For 1401959/1402647 co-relation queries the response was YES. [2022-12-05 19:08:35,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950674 conditions, 287433 events. 162914/287433 cut-off events. For 1401959/1402647 co-relation queries the response was YES. Maximal size of possible extension queue 6641. Compared 3139534 event pairs, 12138 based on Foata normal form. 431/262967 useless extension candidates. Maximal degree in co-relation 950615. Up to 32942 conditions per place. [2022-12-05 19:08:37,082 INFO L137 encePairwiseOnDemand]: 251/297 looper letters, 1707 selfloop transitions, 624 changer transitions 163/2595 dead transitions. [2022-12-05 19:08:37,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 2595 transitions, 18909 flow [2022-12-05 19:08:37,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-12-05 19:08:37,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2022-12-05 19:08:37,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 19530 transitions. [2022-12-05 19:08:37,121 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.509748649283533 [2022-12-05 19:08:37,121 INFO L175 Difference]: Start difference. First operand has 341 places, 305 transitions, 1417 flow. Second operand 129 states and 19530 transitions. [2022-12-05 19:08:37,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 2595 transitions, 18909 flow [2022-12-05 19:09:13,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 2595 transitions, 16852 flow, removed 848 selfloop flow, removed 33 redundant places. [2022-12-05 19:09:14,004 INFO L231 Difference]: Finished difference. Result has 492 places, 1021 transitions, 8690 flow [2022-12-05 19:09:14,005 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=1256, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=129, PETRI_FLOW=8690, PETRI_PLACES=492, PETRI_TRANSITIONS=1021} [2022-12-05 19:09:14,007 INFO L294 CegarLoopForPetriNet]: 239 programPoint places, 253 predicate places. [2022-12-05 19:09:14,007 INFO L495 AbstractCegarLoop]: Abstraction has has 492 places, 1021 transitions, 8690 flow [2022-12-05 19:09:14,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 139.01470588235293) internal successors, (9453), 68 states have internal predecessors, (9453), 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 19:09:14,019 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:09:14,023 INFO L213 CegarLoopForPetriNet]: trace histogram [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] [2022-12-05 19:09:14,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-05 19:09:14,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:09:14,233 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-05 19:09:14,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:09:14,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1722386766, now seen corresponding path program 2 times [2022-12-05 19:09:14,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:09:14,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461228017] [2022-12-05 19:09:14,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:09:14,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:09:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:09:16,864 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:09:16,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:09:16,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461228017] [2022-12-05 19:09:16,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461228017] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 19:09:16,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647367275] [2022-12-05 19:09:16,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 19:09:16,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 19:09:16,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:09:16,879 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 19:09:16,927 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 19:09:17,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-05 19:09:17,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 19:09:17,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 103 conjunts are in the unsatisfiable core [2022-12-05 19:09:17,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 19:09:17,682 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 19:09:18,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-05 19:09:18,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-05 19:09:18,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-05 19:09:18,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-05 19:09:18,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-05 19:09:19,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-05 19:09:19,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 19:09:19,454 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:09:19,454 INFO L328 TraceCheckSpWp]: Computing backward predicates...