/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 08:08:31,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 08:08:31,929 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 08:08:31,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 08:08:31,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 08:08:31,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 08:08:31,948 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 08:08:31,948 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 08:08:31,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 08:08:31,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 08:08:31,949 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 08:08:31,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 08:08:31,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 08:08:31,950 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 08:08:31,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 08:08:31,950 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 08:08:31,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 08:08:31,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 08:08:31,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 08:08:31,951 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 08:08:31,951 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 08:08:31,952 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 08:08:31,952 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 08:08:31,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 08:08:31,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 08:08:31,952 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 08:08:31,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 08:08:31,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:08:31,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 08:08:31,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 08:08:31,953 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 08:08:31,953 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 08:08:31,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 08:08:31,954 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 08:08:31,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 08:08:31,954 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 08:08:32,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 08:08:32,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 08:08:32,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 08:08:32,220 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 08:08:32,220 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 08:08:32,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2023-08-26 08:08:33,335 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 08:08:33,546 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 08:08:33,547 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2023-08-26 08:08:33,558 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67b863142/12b44ec7cdb5438cb984f63367c778d2/FLAGed423e776 [2023-08-26 08:08:33,566 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67b863142/12b44ec7cdb5438cb984f63367c778d2 [2023-08-26 08:08:33,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 08:08:33,568 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 08:08:33,569 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 08:08:33,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 08:08:33,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 08:08:33,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:08:33" (1/1) ... [2023-08-26 08:08:33,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4668739b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:08:33, skipping insertion in model container [2023-08-26 08:08:33,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:08:33" (1/1) ... [2023-08-26 08:08:33,627 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 08:08:33,938 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 08:08:33,940 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 08:08:33,941 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 08:08:33,944 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 08:08:33,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:08:34,003 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 08:08:34,024 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 08:08:34,026 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 08:08:34,039 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 08:08:34,039 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 08:08:34,039 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 08:08:34,042 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 08:08:34,063 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:08:34,119 INFO L206 MainTranslator]: Completed translation [2023-08-26 08:08:34,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:08:34 WrapperNode [2023-08-26 08:08:34,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 08:08:34,123 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 08:08:34,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 08:08:34,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 08:08:34,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:08:34" (1/1) ... [2023-08-26 08:08:34,157 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:08:34" (1/1) ... [2023-08-26 08:08:34,186 INFO L138 Inliner]: procedures = 278, calls = 52, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 366 [2023-08-26 08:08:34,186 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 08:08:34,187 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 08:08:34,187 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 08:08:34,187 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 08:08:34,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:08:34" (1/1) ... [2023-08-26 08:08:34,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:08:34" (1/1) ... [2023-08-26 08:08:34,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:08:34" (1/1) ... [2023-08-26 08:08:34,198 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:08:34" (1/1) ... [2023-08-26 08:08:34,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:08:34" (1/1) ... [2023-08-26 08:08:34,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:08:34" (1/1) ... [2023-08-26 08:08:34,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:08:34" (1/1) ... [2023-08-26 08:08:34,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:08:34" (1/1) ... [2023-08-26 08:08:34,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 08:08:34,227 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 08:08:34,227 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 08:08:34,227 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 08:08:34,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:08:34" (1/1) ... [2023-08-26 08:08:34,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:08:34,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:08:34,263 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) [2023-08-26 08:08:34,265 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 [2023-08-26 08:08:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 08:08:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-26 08:08:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 08:08:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 08:08:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 08:08:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 08:08:34,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 08:08:34,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 08:08:34,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 08:08:34,295 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 08:08:34,295 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 08:08:34,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 08:08:34,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 08:08:34,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 08:08:34,297 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 08:08:34,461 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 08:08:34,464 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 08:08:34,903 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 08:08:34,909 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 08:08:34,909 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-08-26 08:08:34,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:08:34 BoogieIcfgContainer [2023-08-26 08:08:34,910 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 08:08:34,912 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 08:08:34,912 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 08:08:34,914 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 08:08:34,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:08:33" (1/3) ... [2023-08-26 08:08:34,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a3c768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:08:34, skipping insertion in model container [2023-08-26 08:08:34,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:08:34" (2/3) ... [2023-08-26 08:08:34,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a3c768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:08:34, skipping insertion in model container [2023-08-26 08:08:34,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:08:34" (3/3) ... [2023-08-26 08:08:34,916 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2023-08-26 08:08:34,927 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 08:08:34,927 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2023-08-26 08:08:34,927 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 08:08:34,982 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 08:08:35,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 397 transitions, 802 flow [2023-08-26 08:08:35,153 INFO L124 PetriNetUnfolderBase]: 29/421 cut-off events. [2023-08-26 08:08:35,153 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 08:08:35,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 421 events. 29/421 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 924 event pairs, 0 based on Foata normal form. 0/365 useless extension candidates. Maximal degree in co-relation 248. Up to 4 conditions per place. [2023-08-26 08:08:35,160 INFO L82 GeneralOperation]: Start removeDead. Operand has 373 places, 397 transitions, 802 flow [2023-08-26 08:08:35,169 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 373 places, 397 transitions, 802 flow [2023-08-26 08:08:35,172 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 08:08:35,182 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 397 transitions, 802 flow [2023-08-26 08:08:35,188 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 397 transitions, 802 flow [2023-08-26 08:08:35,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 397 transitions, 802 flow [2023-08-26 08:08:35,232 INFO L124 PetriNetUnfolderBase]: 29/421 cut-off events. [2023-08-26 08:08:35,232 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 08:08:35,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 421 events. 29/421 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 924 event pairs, 0 based on Foata normal form. 0/365 useless extension candidates. Maximal degree in co-relation 248. Up to 4 conditions per place. [2023-08-26 08:08:35,241 INFO L119 LiptonReduction]: Number of co-enabled transitions 8220 [2023-08-26 08:09:17,952 WARN L234 SmtUtils]: Spent 8.43s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:09:24,140 WARN L234 SmtUtils]: Spent 6.19s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:09:32,757 WARN L234 SmtUtils]: Spent 8.61s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:09:38,949 WARN L234 SmtUtils]: Spent 6.19s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:10:15,011 WARN L234 SmtUtils]: Spent 26.16s on a formula simplification that was a NOOP. DAG size: 197 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:10:43,987 WARN L234 SmtUtils]: Spent 28.97s on a formula simplification that was a NOOP. DAG size: 193 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:11:13,409 WARN L234 SmtUtils]: Spent 29.42s on a formula simplification that was a NOOP. DAG size: 197 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:11:29,896 WARN L234 SmtUtils]: Spent 16.49s on a formula simplification that was a NOOP. DAG size: 193 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:14:25,743 WARN L234 SmtUtils]: Spent 2.87m on a formula simplification. DAG size of input: 271 DAG size of output: 262 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:16:12,762 WARN L234 SmtUtils]: Spent 1.78m on a formula simplification that was a NOOP. DAG size: 252 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:19:46,431 WARN L234 SmtUtils]: Spent 3.56m on a formula simplification. DAG size of input: 271 DAG size of output: 262 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:20:45,437 WARN L234 SmtUtils]: Spent 59.00s on a formula simplification that was a NOOP. DAG size: 252 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:20:54,217 WARN L234 SmtUtils]: Spent 8.77s on a formula simplification. DAG size of input: 153 DAG size of output: 149 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:21:07,674 WARN L234 SmtUtils]: Spent 10.37s on a formula simplification. DAG size of input: 162 DAG size of output: 158 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:21:11,624 INFO L134 LiptonReduction]: Checked pairs total: 28691 [2023-08-26 08:21:11,624 INFO L136 LiptonReduction]: Total number of compositions: 387 [2023-08-26 08:21:11,637 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 08:21:11,657 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;@5ad64bed, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 08:21:11,658 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-08-26 08:21:11,659 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 08:21:11,660 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-08-26 08:21:11,660 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 08:21:11,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:21:11,660 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-26 08:21:11,661 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 08:21:11,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:21:11,664 INFO L85 PathProgramCache]: Analyzing trace with hash 46272, now seen corresponding path program 1 times [2023-08-26 08:21:11,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:21:11,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655927840] [2023-08-26 08:21:11,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:21:11,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:21:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:21:11,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:21:11,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:21:11,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655927840] [2023-08-26 08:21:11,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655927840] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:21:11,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:21:11,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 08:21:11,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256438130] [2023-08-26 08:21:11,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:21:11,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 08:21:11,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:21:11,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 08:21:11,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 08:21:11,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 784 [2023-08-26 08:21:11,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 104 transitions, 216 flow. Second operand has 2 states, 2 states have (on average 374.0) internal successors, (748), 2 states have internal predecessors, (748), 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) [2023-08-26 08:21:11,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:21:11,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 784 [2023-08-26 08:21:11,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:21:13,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:13,613 INFO L124 PetriNetUnfolderBase]: 116/486 cut-off events. [2023-08-26 08:21:13,614 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-08-26 08:21:13,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 486 events. 116/486 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2278 event pairs, 95 based on Foata normal form. 30/439 useless extension candidates. Maximal degree in co-relation 692. Up to 239 conditions per place. [2023-08-26 08:21:13,616 INFO L140 encePairwiseOnDemand]: 759/784 looper letters, 34 selfloop transitions, 0 changer transitions 0/79 dead transitions. [2023-08-26 08:21:13,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 79 transitions, 234 flow [2023-08-26 08:21:13,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 08:21:13,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 08:21:13,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 805 transitions. [2023-08-26 08:21:13,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5133928571428571 [2023-08-26 08:21:13,635 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 805 transitions. [2023-08-26 08:21:13,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 805 transitions. [2023-08-26 08:21:13,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:21:13,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 805 transitions. [2023-08-26 08:21:13,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 402.5) internal successors, (805), 2 states have internal predecessors, (805), 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) [2023-08-26 08:21:13,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 784.0) internal successors, (2352), 3 states have internal predecessors, (2352), 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) [2023-08-26 08:21:13,651 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 784.0) internal successors, (2352), 3 states have internal predecessors, (2352), 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) [2023-08-26 08:21:13,652 INFO L175 Difference]: Start difference. First operand has 90 places, 104 transitions, 216 flow. Second operand 2 states and 805 transitions. [2023-08-26 08:21:13,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 79 transitions, 234 flow [2023-08-26 08:21:13,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 79 transitions, 234 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:21:13,657 INFO L231 Difference]: Finished difference. Result has 77 places, 79 transitions, 166 flow [2023-08-26 08:21:13,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=166, PETRI_PLACES=77, PETRI_TRANSITIONS=79} [2023-08-26 08:21:13,662 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -13 predicate places. [2023-08-26 08:21:13,663 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 79 transitions, 166 flow [2023-08-26 08:21:13,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 374.0) internal successors, (748), 2 states have internal predecessors, (748), 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) [2023-08-26 08:21:13,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:21:13,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:21:13,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 08:21:13,664 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 08:21:13,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:21:13,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1243774484, now seen corresponding path program 1 times [2023-08-26 08:21:13,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:21:13,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907772268] [2023-08-26 08:21:13,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:21:13,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:21:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:21:13,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:21:13,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:21:13,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907772268] [2023-08-26 08:21:13,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907772268] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:21:13,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:21:13,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:21:13,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563814646] [2023-08-26 08:21:13,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:21:13,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:21:13,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:21:13,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:21:13,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:21:13,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 784 [2023-08-26 08:21:13,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 79 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 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) [2023-08-26 08:21:13,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:21:13,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 784 [2023-08-26 08:21:13,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:21:15,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:17,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:17,232 INFO L124 PetriNetUnfolderBase]: 117/489 cut-off events. [2023-08-26 08:21:17,234 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-08-26 08:21:17,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 489 events. 117/489 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2274 event pairs, 95 based on Foata normal form. 0/411 useless extension candidates. Maximal degree in co-relation 735. Up to 239 conditions per place. [2023-08-26 08:21:17,238 INFO L140 encePairwiseOnDemand]: 781/784 looper letters, 35 selfloop transitions, 2 changer transitions 0/82 dead transitions. [2023-08-26 08:21:17,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 82 transitions, 246 flow [2023-08-26 08:21:17,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:21:17,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:21:17,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1124 transitions. [2023-08-26 08:21:17,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.477891156462585 [2023-08-26 08:21:17,245 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1124 transitions. [2023-08-26 08:21:17,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1124 transitions. [2023-08-26 08:21:17,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:21:17,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1124 transitions. [2023-08-26 08:21:17,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.6666666666667) internal successors, (1124), 3 states have internal predecessors, (1124), 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) [2023-08-26 08:21:17,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 784.0) internal successors, (3136), 4 states have internal predecessors, (3136), 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) [2023-08-26 08:21:17,251 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 784.0) internal successors, (3136), 4 states have internal predecessors, (3136), 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) [2023-08-26 08:21:17,251 INFO L175 Difference]: Start difference. First operand has 77 places, 79 transitions, 166 flow. Second operand 3 states and 1124 transitions. [2023-08-26 08:21:17,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 82 transitions, 246 flow [2023-08-26 08:21:17,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 82 transitions, 246 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:21:17,254 INFO L231 Difference]: Finished difference. Result has 80 places, 80 transitions, 178 flow [2023-08-26 08:21:17,254 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=80, PETRI_TRANSITIONS=80} [2023-08-26 08:21:17,255 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -10 predicate places. [2023-08-26 08:21:17,255 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 80 transitions, 178 flow [2023-08-26 08:21:17,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 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) [2023-08-26 08:21:17,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:21:17,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:21:17,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 08:21:17,257 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 08:21:17,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:21:17,257 INFO L85 PathProgramCache]: Analyzing trace with hash 505666415, now seen corresponding path program 1 times [2023-08-26 08:21:17,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:21:17,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462627321] [2023-08-26 08:21:17,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:21:17,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:21:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:21:17,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:21:17,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:21:17,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462627321] [2023-08-26 08:21:17,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462627321] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:21:17,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:21:17,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:21:17,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604713132] [2023-08-26 08:21:17,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:21:17,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:21:17,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:21:17,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:21:17,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:21:17,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 784 [2023-08-26 08:21:17,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 80 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 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) [2023-08-26 08:21:17,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:21:17,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 784 [2023-08-26 08:21:17,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:21:19,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:20,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:20,854 INFO L124 PetriNetUnfolderBase]: 117/491 cut-off events. [2023-08-26 08:21:20,855 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-08-26 08:21:20,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 750 conditions, 491 events. 117/491 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2275 event pairs, 95 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 744. Up to 242 conditions per place. [2023-08-26 08:21:20,856 INFO L140 encePairwiseOnDemand]: 781/784 looper letters, 34 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2023-08-26 08:21:20,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 81 transitions, 252 flow [2023-08-26 08:21:20,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:21:20,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:21:20,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1131 transitions. [2023-08-26 08:21:20,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48086734693877553 [2023-08-26 08:21:20,859 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1131 transitions. [2023-08-26 08:21:20,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1131 transitions. [2023-08-26 08:21:20,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:21:20,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1131 transitions. [2023-08-26 08:21:20,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 377.0) internal successors, (1131), 3 states have internal predecessors, (1131), 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) [2023-08-26 08:21:20,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 784.0) internal successors, (3136), 4 states have internal predecessors, (3136), 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) [2023-08-26 08:21:20,865 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 784.0) internal successors, (3136), 4 states have internal predecessors, (3136), 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) [2023-08-26 08:21:20,865 INFO L175 Difference]: Start difference. First operand has 80 places, 80 transitions, 178 flow. Second operand 3 states and 1131 transitions. [2023-08-26 08:21:20,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 81 transitions, 252 flow [2023-08-26 08:21:20,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 81 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:21:20,867 INFO L231 Difference]: Finished difference. Result has 82 places, 81 transitions, 190 flow [2023-08-26 08:21:20,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=82, PETRI_TRANSITIONS=81} [2023-08-26 08:21:20,867 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -8 predicate places. [2023-08-26 08:21:20,868 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 81 transitions, 190 flow [2023-08-26 08:21:20,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 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) [2023-08-26 08:21:20,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:21:20,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:21:20,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 08:21:20,869 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 08:21:20,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:21:20,869 INFO L85 PathProgramCache]: Analyzing trace with hash -263331632, now seen corresponding path program 1 times [2023-08-26 08:21:20,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:21:20,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620397474] [2023-08-26 08:21:20,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:21:20,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:21:20,912 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 08:21:20,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [773630141] [2023-08-26 08:21:20,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:21:20,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:21:20,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:21:20,915 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) [2023-08-26 08:21:20,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 08:21:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:21:21,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 1226 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-26 08:21:21,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:21:21,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 08:21:21,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 08:21:21,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:21:21,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620397474] [2023-08-26 08:21:21,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 08:21:21,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773630141] [2023-08-26 08:21:21,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773630141] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:21:21,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:21:21,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:21:21,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960747875] [2023-08-26 08:21:21,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:21:21,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:21:21,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:21:21,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:21:21,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:21:21,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 784 [2023-08-26 08:21:21,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 367.3333333333333) internal successors, (1102), 3 states have internal predecessors, (1102), 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) [2023-08-26 08:21:21,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:21:21,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 784 [2023-08-26 08:21:21,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:21:22,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:24,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:24,783 INFO L124 PetriNetUnfolderBase]: 111/426 cut-off events. [2023-08-26 08:21:24,783 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-26 08:21:24,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 426 events. 111/426 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2102 event pairs, 0 based on Foata normal form. 0/316 useless extension candidates. Maximal degree in co-relation 705. Up to 219 conditions per place. [2023-08-26 08:21:24,785 INFO L140 encePairwiseOnDemand]: 781/784 looper letters, 56 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2023-08-26 08:21:24,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 103 transitions, 350 flow [2023-08-26 08:21:24,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:21:24,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:21:24,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1152 transitions. [2023-08-26 08:21:24,791 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4897959183673469 [2023-08-26 08:21:24,791 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1152 transitions. [2023-08-26 08:21:24,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1152 transitions. [2023-08-26 08:21:24,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:21:24,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1152 transitions. [2023-08-26 08:21:24,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 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) [2023-08-26 08:21:24,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 784.0) internal successors, (3136), 4 states have internal predecessors, (3136), 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) [2023-08-26 08:21:24,809 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 784.0) internal successors, (3136), 4 states have internal predecessors, (3136), 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) [2023-08-26 08:21:24,809 INFO L175 Difference]: Start difference. First operand has 82 places, 81 transitions, 190 flow. Second operand 3 states and 1152 transitions. [2023-08-26 08:21:24,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 103 transitions, 350 flow [2023-08-26 08:21:24,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 103 transitions, 346 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-26 08:21:24,812 INFO L231 Difference]: Finished difference. Result has 84 places, 81 transitions, 194 flow [2023-08-26 08:21:24,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=84, PETRI_TRANSITIONS=81} [2023-08-26 08:21:24,814 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -6 predicate places. [2023-08-26 08:21:24,814 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 81 transitions, 194 flow [2023-08-26 08:21:24,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 367.3333333333333) internal successors, (1102), 3 states have internal predecessors, (1102), 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) [2023-08-26 08:21:24,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:21:24,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:21:24,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-26 08:21:25,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:21:25,021 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 08:21:25,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:21:25,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1781060912, now seen corresponding path program 1 times [2023-08-26 08:21:25,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:21:25,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819038866] [2023-08-26 08:21:25,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:21:25,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:21:25,071 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 08:21:25,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1999324614] [2023-08-26 08:21:25,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:21:25,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:21:25,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:21:25,081 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) [2023-08-26 08:21:25,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 08:21:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:21:25,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 1264 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 08:21:25,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:21:25,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:21:25,448 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 08:21:25,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:21:25,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:21:25,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819038866] [2023-08-26 08:21:25,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 08:21:25,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999324614] [2023-08-26 08:21:25,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999324614] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 08:21:25,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 08:21:25,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-08-26 08:21:25,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347645423] [2023-08-26 08:21:25,476 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 08:21:25,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:21:25,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:21:25,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:21:25,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:21:25,479 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 784 [2023-08-26 08:21:25,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 81 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 367.0) internal successors, (2202), 6 states have internal predecessors, (2202), 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) [2023-08-26 08:21:25,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:21:25,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 784 [2023-08-26 08:21:25,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:21:27,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:29,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:31,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:33,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:35,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:37,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:38,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:39,266 INFO L124 PetriNetUnfolderBase]: 116/499 cut-off events. [2023-08-26 08:21:39,266 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2023-08-26 08:21:39,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 837 conditions, 499 events. 116/499 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2410 event pairs, 95 based on Foata normal form. 6/439 useless extension candidates. Maximal degree in co-relation 829. Up to 241 conditions per place. [2023-08-26 08:21:39,268 INFO L140 encePairwiseOnDemand]: 781/784 looper letters, 34 selfloop transitions, 5 changer transitions 0/84 dead transitions. [2023-08-26 08:21:39,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 84 transitions, 284 flow [2023-08-26 08:21:39,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:21:39,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:21:39,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2231 transitions. [2023-08-26 08:21:39,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47427721088435376 [2023-08-26 08:21:39,272 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2231 transitions. [2023-08-26 08:21:39,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2231 transitions. [2023-08-26 08:21:39,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:21:39,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2231 transitions. [2023-08-26 08:21:39,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 371.8333333333333) internal successors, (2231), 6 states have internal predecessors, (2231), 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) [2023-08-26 08:21:39,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 784.0) internal successors, (5488), 7 states have internal predecessors, (5488), 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) [2023-08-26 08:21:39,283 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 784.0) internal successors, (5488), 7 states have internal predecessors, (5488), 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) [2023-08-26 08:21:39,283 INFO L175 Difference]: Start difference. First operand has 84 places, 81 transitions, 194 flow. Second operand 6 states and 2231 transitions. [2023-08-26 08:21:39,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 84 transitions, 284 flow [2023-08-26 08:21:39,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 84 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:21:39,285 INFO L231 Difference]: Finished difference. Result has 90 places, 84 transitions, 232 flow [2023-08-26 08:21:39,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=232, PETRI_PLACES=90, PETRI_TRANSITIONS=84} [2023-08-26 08:21:39,285 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2023-08-26 08:21:39,285 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 84 transitions, 232 flow [2023-08-26 08:21:39,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 367.0) internal successors, (2202), 6 states have internal predecessors, (2202), 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) [2023-08-26 08:21:39,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:21:39,287 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:21:39,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-26 08:21:39,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:21:39,494 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 08:21:39,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:21:39,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1129530897, now seen corresponding path program 2 times [2023-08-26 08:21:39,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:21:39,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716120596] [2023-08-26 08:21:39,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:21:39,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:21:39,669 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 08:21:39,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980057640] [2023-08-26 08:21:39,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 08:21:39,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:21:39,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:21:39,686 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) [2023-08-26 08:21:39,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-26 08:21:40,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 08:21:40,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 08:21:40,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-26 08:21:40,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:21:40,199 INFO L351 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 15 treesize of output 11 [2023-08-26 08:21:40,210 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-08-26 08:21:40,234 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 08:21:40,234 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-08-26 08:21:40,261 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 08:21:40,261 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-08-26 08:21:40,282 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-26 08:21:40,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 08:21:40,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:21:40,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716120596] [2023-08-26 08:21:40,282 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 08:21:40,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980057640] [2023-08-26 08:21:40,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980057640] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:21:40,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:21:40,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:21:40,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15510271] [2023-08-26 08:21:40,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:21:40,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:21:40,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:21:40,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:21:40,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:21:40,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 784 [2023-08-26 08:21:40,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 84 transitions, 232 flow. Second operand has 6 states, 6 states have (on average 224.33333333333334) internal successors, (1346), 6 states have internal predecessors, (1346), 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) [2023-08-26 08:21:40,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:21:40,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 784 [2023-08-26 08:21:40,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:21:41,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:42,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:44,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:45,211 INFO L124 PetriNetUnfolderBase]: 943/1977 cut-off events. [2023-08-26 08:21:45,211 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2023-08-26 08:21:45,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4134 conditions, 1977 events. 943/1977 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8776 event pairs, 539 based on Foata normal form. 0/1621 useless extension candidates. Maximal degree in co-relation 4123. Up to 1215 conditions per place. [2023-08-26 08:21:45,218 INFO L140 encePairwiseOnDemand]: 777/784 looper letters, 147 selfloop transitions, 6 changer transitions 0/156 dead transitions. [2023-08-26 08:21:45,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 156 transitions, 694 flow [2023-08-26 08:21:45,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:21:45,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:21:45,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1481 transitions. [2023-08-26 08:21:45,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3148384353741497 [2023-08-26 08:21:45,221 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1481 transitions. [2023-08-26 08:21:45,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1481 transitions. [2023-08-26 08:21:45,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:21:45,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1481 transitions. [2023-08-26 08:21:45,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 246.83333333333334) internal successors, (1481), 6 states have internal predecessors, (1481), 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) [2023-08-26 08:21:45,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 784.0) internal successors, (5488), 7 states have internal predecessors, (5488), 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) [2023-08-26 08:21:45,228 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 784.0) internal successors, (5488), 7 states have internal predecessors, (5488), 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) [2023-08-26 08:21:45,228 INFO L175 Difference]: Start difference. First operand has 90 places, 84 transitions, 232 flow. Second operand 6 states and 1481 transitions. [2023-08-26 08:21:45,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 156 transitions, 694 flow [2023-08-26 08:21:45,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 156 transitions, 680 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-26 08:21:45,231 INFO L231 Difference]: Finished difference. Result has 94 places, 85 transitions, 239 flow [2023-08-26 08:21:45,231 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=239, PETRI_PLACES=94, PETRI_TRANSITIONS=85} [2023-08-26 08:21:45,231 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2023-08-26 08:21:45,231 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 85 transitions, 239 flow [2023-08-26 08:21:45,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 224.33333333333334) internal successors, (1346), 6 states have internal predecessors, (1346), 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) [2023-08-26 08:21:45,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:21:45,232 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:21:45,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-26 08:21:45,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:21:45,438 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 08:21:45,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:21:45,438 INFO L85 PathProgramCache]: Analyzing trace with hash -230450565, now seen corresponding path program 1 times [2023-08-26 08:21:45,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:21:45,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57521797] [2023-08-26 08:21:45,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:21:45,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:21:45,570 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 08:21:45,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1075600484] [2023-08-26 08:21:45,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:21:45,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:21:45,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:21:45,571 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) [2023-08-26 08:21:45,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-26 08:21:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:21:46,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 4080 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-26 08:21:46,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:21:46,776 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 08:21:46,776 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 08:21:46,828 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 08:21:46,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:21:46,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57521797] [2023-08-26 08:21:46,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 08:21:46,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075600484] [2023-08-26 08:21:46,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075600484] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 08:21:46,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 08:21:46,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-08-26 08:21:46,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910542107] [2023-08-26 08:21:46,829 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 08:21:46,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-26 08:21:46,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:21:46,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-26 08:21:46,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-08-26 08:21:46,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 784 [2023-08-26 08:21:46,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 85 transitions, 239 flow. Second operand has 12 states, 12 states have (on average 366.5833333333333) internal successors, (4399), 12 states have internal predecessors, (4399), 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) [2023-08-26 08:21:46,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:21:46,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 784 [2023-08-26 08:21:46,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:21:48,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:50,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:51,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:53,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:55,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:56,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:21:58,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:00,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:02,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:04,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:06,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:07,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:09,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:11,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:13,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:13,664 INFO L124 PetriNetUnfolderBase]: 173/733 cut-off events. [2023-08-26 08:22:13,665 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2023-08-26 08:22:13,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1284 conditions, 733 events. 173/733 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3484 event pairs, 140 based on Foata normal form. 12/652 useless extension candidates. Maximal degree in co-relation 1271. Up to 358 conditions per place. [2023-08-26 08:22:13,667 INFO L140 encePairwiseOnDemand]: 781/784 looper letters, 36 selfloop transitions, 11 changer transitions 0/91 dead transitions. [2023-08-26 08:22:13,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 91 transitions, 369 flow [2023-08-26 08:22:13,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 08:22:13,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 08:22:13,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4430 transitions. [2023-08-26 08:22:13,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47087585034013607 [2023-08-26 08:22:13,674 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4430 transitions. [2023-08-26 08:22:13,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4430 transitions. [2023-08-26 08:22:13,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:22:13,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4430 transitions. [2023-08-26 08:22:13,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 369.1666666666667) internal successors, (4430), 12 states have internal predecessors, (4430), 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) [2023-08-26 08:22:13,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 784.0) internal successors, (10192), 13 states have internal predecessors, (10192), 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) [2023-08-26 08:22:13,700 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 784.0) internal successors, (10192), 13 states have internal predecessors, (10192), 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) [2023-08-26 08:22:13,700 INFO L175 Difference]: Start difference. First operand has 94 places, 85 transitions, 239 flow. Second operand 12 states and 4430 transitions. [2023-08-26 08:22:13,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 91 transitions, 369 flow [2023-08-26 08:22:13,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 91 transitions, 360 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 08:22:13,703 INFO L231 Difference]: Finished difference. Result has 107 places, 91 transitions, 326 flow [2023-08-26 08:22:13,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=326, PETRI_PLACES=107, PETRI_TRANSITIONS=91} [2023-08-26 08:22:13,704 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 17 predicate places. [2023-08-26 08:22:13,704 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 91 transitions, 326 flow [2023-08-26 08:22:13,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 366.5833333333333) internal successors, (4399), 12 states have internal predecessors, (4399), 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) [2023-08-26 08:22:13,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:22:13,705 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:22:13,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-26 08:22:13,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:22:13,918 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 08:22:13,918 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:22:13,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1397654043, now seen corresponding path program 2 times [2023-08-26 08:22:13,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:22:13,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348718821] [2023-08-26 08:22:13,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:22:13,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:22:14,215 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 08:22:14,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2061604056] [2023-08-26 08:22:14,216 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 08:22:14,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:22:14,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:22:14,217 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) [2023-08-26 08:22:14,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-26 08:22:15,466 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 08:22:15,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 08:22:15,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 26 conjunts are in the unsatisfiable core [2023-08-26 08:22:15,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:22:15,528 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-26 08:22:15,545 INFO L351 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 19 treesize of output 18 [2023-08-26 08:22:15,577 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 08:22:15,578 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-26 08:22:15,603 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 08:22:15,603 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-26 08:22:15,624 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-08-26 08:22:15,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 08:22:15,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:22:15,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348718821] [2023-08-26 08:22:15,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 08:22:15,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061604056] [2023-08-26 08:22:15,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061604056] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:22:15,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:22:15,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 08:22:15,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491998919] [2023-08-26 08:22:15,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:22:15,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 08:22:15,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:22:15,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 08:22:15,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-08-26 08:22:15,626 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 784 [2023-08-26 08:22:15,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 91 transitions, 326 flow. Second operand has 8 states, 8 states have (on average 230.875) internal successors, (1847), 8 states have internal predecessors, (1847), 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) [2023-08-26 08:22:15,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:22:15,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 784 [2023-08-26 08:22:15,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:22:17,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:19,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:21,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:21,891 INFO L124 PetriNetUnfolderBase]: 1176/2525 cut-off events. [2023-08-26 08:22:21,891 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2023-08-26 08:22:21,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5364 conditions, 2525 events. 1176/2525 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12975 event pairs, 227 based on Foata normal form. 0/2221 useless extension candidates. Maximal degree in co-relation 5345. Up to 1177 conditions per place. [2023-08-26 08:22:21,901 INFO L140 encePairwiseOnDemand]: 766/784 looper letters, 338 selfloop transitions, 45 changer transitions 2/389 dead transitions. [2023-08-26 08:22:21,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 389 transitions, 1745 flow [2023-08-26 08:22:21,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 08:22:21,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 08:22:21,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2196 transitions. [2023-08-26 08:22:21,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35012755102040816 [2023-08-26 08:22:21,905 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2196 transitions. [2023-08-26 08:22:21,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2196 transitions. [2023-08-26 08:22:21,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:22:21,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2196 transitions. [2023-08-26 08:22:21,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 274.5) internal successors, (2196), 8 states have internal predecessors, (2196), 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) [2023-08-26 08:22:21,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 784.0) internal successors, (7056), 9 states have internal predecessors, (7056), 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) [2023-08-26 08:22:21,914 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 784.0) internal successors, (7056), 9 states have internal predecessors, (7056), 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) [2023-08-26 08:22:21,914 INFO L175 Difference]: Start difference. First operand has 107 places, 91 transitions, 326 flow. Second operand 8 states and 2196 transitions. [2023-08-26 08:22:21,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 389 transitions, 1745 flow [2023-08-26 08:22:21,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 389 transitions, 1697 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-26 08:22:21,920 INFO L231 Difference]: Finished difference. Result has 114 places, 141 transitions, 621 flow [2023-08-26 08:22:21,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=621, PETRI_PLACES=114, PETRI_TRANSITIONS=141} [2023-08-26 08:22:21,923 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 24 predicate places. [2023-08-26 08:22:21,923 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 141 transitions, 621 flow [2023-08-26 08:22:21,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 230.875) internal successors, (1847), 8 states have internal predecessors, (1847), 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) [2023-08-26 08:22:21,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:22:21,923 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:22:21,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-26 08:22:22,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:22:22,132 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 08:22:22,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:22:22,132 INFO L85 PathProgramCache]: Analyzing trace with hash 289745605, now seen corresponding path program 1 times [2023-08-26 08:22:22,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:22:22,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686664210] [2023-08-26 08:22:22,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:22:22,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:22:22,480 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 08:22:22,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2009287126] [2023-08-26 08:22:22,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:22:22,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:22:22,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:22:22,482 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:22:22,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-26 08:22:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:22:25,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 9793 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-26 08:22:25,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:22:25,408 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:22:25,409 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 08:22:25,576 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:22:25,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:22:25,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686664210] [2023-08-26 08:22:25,577 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 08:22:25,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009287126] [2023-08-26 08:22:25,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009287126] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 08:22:25,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 08:22:25,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-08-26 08:22:25,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837507034] [2023-08-26 08:22:25,577 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 08:22:25,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-26 08:22:25,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:22:25,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-26 08:22:25,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-08-26 08:22:25,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 784 [2023-08-26 08:22:25,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 141 transitions, 621 flow. Second operand has 24 states, 24 states have (on average 366.375) internal successors, (8793), 24 states have internal predecessors, (8793), 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) [2023-08-26 08:22:25,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:22:25,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 784 [2023-08-26 08:22:25,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:22:26,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:27,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:29,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:32,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:34,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:36,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:37,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:39,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:40,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:43,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:45,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:46,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:48,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:50,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:52,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:53,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:55,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:22:56,806 INFO L124 PetriNetUnfolderBase]: 244/1206 cut-off events. [2023-08-26 08:22:56,806 INFO L125 PetriNetUnfolderBase]: For 1505/1511 co-relation queries the response was YES. [2023-08-26 08:22:56,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2404 conditions, 1206 events. 244/1206 cut-off events. For 1505/1511 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6704 event pairs, 108 based on Foata normal form. 24/1144 useless extension candidates. Maximal degree in co-relation 2380. Up to 484 conditions per place. [2023-08-26 08:22:56,810 INFO L140 encePairwiseOnDemand]: 781/784 looper letters, 51 selfloop transitions, 23 changer transitions 0/153 dead transitions. [2023-08-26 08:22:56,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 153 transitions, 841 flow [2023-08-26 08:22:56,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-26 08:22:56,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-26 08:22:56,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 8827 transitions. [2023-08-26 08:22:56,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46912202380952384 [2023-08-26 08:22:56,822 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 8827 transitions. [2023-08-26 08:22:56,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 8827 transitions. [2023-08-26 08:22:56,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:22:56,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 8827 transitions. [2023-08-26 08:22:56,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 367.7916666666667) internal successors, (8827), 24 states have internal predecessors, (8827), 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) [2023-08-26 08:22:56,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 784.0) internal successors, (19600), 25 states have internal predecessors, (19600), 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) [2023-08-26 08:22:56,848 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 784.0) internal successors, (19600), 25 states have internal predecessors, (19600), 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) [2023-08-26 08:22:56,848 INFO L175 Difference]: Start difference. First operand has 114 places, 141 transitions, 621 flow. Second operand 24 states and 8827 transitions. [2023-08-26 08:22:56,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 153 transitions, 841 flow [2023-08-26 08:22:56,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 153 transitions, 840 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:22:56,853 INFO L231 Difference]: Finished difference. Result has 147 places, 153 transitions, 812 flow [2023-08-26 08:22:56,853 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=812, PETRI_PLACES=147, PETRI_TRANSITIONS=153} [2023-08-26 08:22:56,854 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 57 predicate places. [2023-08-26 08:22:56,854 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 153 transitions, 812 flow [2023-08-26 08:22:56,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 366.375) internal successors, (8793), 24 states have internal predecessors, (8793), 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) [2023-08-26 08:22:56,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:22:56,855 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:22:56,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-26 08:22:57,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:22:57,069 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 08:22:57,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:22:57,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1470932091, now seen corresponding path program 2 times [2023-08-26 08:22:57,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:22:57,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595782914] [2023-08-26 08:22:57,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:22:57,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:22:57,768 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 08:22:57,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [487422026] [2023-08-26 08:22:57,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 08:22:57,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:22:57,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:22:57,770 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:22:57,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-26 08:23:00,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 08:23:00,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 08:23:00,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-26 08:23:00,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:23:00,797 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-26 08:23:00,803 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-26 08:23:00,816 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 08:23:00,816 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-08-26 08:23:00,834 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 08:23:00,834 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-08-26 08:23:00,852 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-08-26 08:23:00,852 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 08:23:00,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:23:00,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595782914] [2023-08-26 08:23:00,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 08:23:00,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487422026] [2023-08-26 08:23:00,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487422026] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:23:00,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:23:00,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:23:00,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120881972] [2023-08-26 08:23:00,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:23:00,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:23:00,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:23:00,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:23:00,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:23:00,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 784 [2023-08-26 08:23:00,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 153 transitions, 812 flow. Second operand has 6 states, 6 states have (on average 233.66666666666666) internal successors, (1402), 6 states have internal predecessors, (1402), 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) [2023-08-26 08:23:00,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:23:00,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 784 [2023-08-26 08:23:00,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:23:02,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:23:04,100 INFO L124 PetriNetUnfolderBase]: 1226/2658 cut-off events. [2023-08-26 08:23:04,100 INFO L125 PetriNetUnfolderBase]: For 2414/2414 co-relation queries the response was YES. [2023-08-26 08:23:04,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7270 conditions, 2658 events. 1226/2658 cut-off events. For 2414/2414 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 12751 event pairs, 316 based on Foata normal form. 0/2498 useless extension candidates. Maximal degree in co-relation 7234. Up to 1289 conditions per place. [2023-08-26 08:23:04,111 INFO L140 encePairwiseOnDemand]: 766/784 looper letters, 179 selfloop transitions, 31 changer transitions 0/213 dead transitions. [2023-08-26 08:23:04,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 213 transitions, 1496 flow [2023-08-26 08:23:04,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:23:04,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:23:04,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1501 transitions. [2023-08-26 08:23:04,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31909013605442177 [2023-08-26 08:23:04,114 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1501 transitions. [2023-08-26 08:23:04,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1501 transitions. [2023-08-26 08:23:04,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:23:04,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1501 transitions. [2023-08-26 08:23:04,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 250.16666666666666) internal successors, (1501), 6 states have internal predecessors, (1501), 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) [2023-08-26 08:23:04,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 784.0) internal successors, (5488), 7 states have internal predecessors, (5488), 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) [2023-08-26 08:23:04,120 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 784.0) internal successors, (5488), 7 states have internal predecessors, (5488), 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) [2023-08-26 08:23:04,120 INFO L175 Difference]: Start difference. First operand has 147 places, 153 transitions, 812 flow. Second operand 6 states and 1501 transitions. [2023-08-26 08:23:04,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 213 transitions, 1496 flow [2023-08-26 08:23:04,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 213 transitions, 1400 flow, removed 37 selfloop flow, removed 11 redundant places. [2023-08-26 08:23:04,128 INFO L231 Difference]: Finished difference. Result has 139 places, 151 transitions, 798 flow [2023-08-26 08:23:04,128 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=798, PETRI_PLACES=139, PETRI_TRANSITIONS=151} [2023-08-26 08:23:04,128 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 49 predicate places. [2023-08-26 08:23:04,128 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 151 transitions, 798 flow [2023-08-26 08:23:04,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.66666666666666) internal successors, (1402), 6 states have internal predecessors, (1402), 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) [2023-08-26 08:23:04,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:23:04,129 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:23:04,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-26 08:23:04,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:23:04,343 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr6ASSERT_VIOLATIONASSERT === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 08:23:04,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:23:04,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1470931724, now seen corresponding path program 1 times [2023-08-26 08:23:04,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:23:04,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847464722] [2023-08-26 08:23:04,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:23:04,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:23:05,015 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 08:23:05,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789238567] [2023-08-26 08:23:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:23:05,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:23:05,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:23:05,033 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:23:05,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-26 08:23:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:23:11,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 21122 conjuncts, 24 conjunts are in the unsatisfiable core [2023-08-26 08:23:11,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:23:11,310 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 1 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:23:11,311 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 08:23:11,680 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 1 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:23:11,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:23:11,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847464722] [2023-08-26 08:23:11,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 08:23:11,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789238567] [2023-08-26 08:23:11,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789238567] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 08:23:11,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 08:23:11,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 32 [2023-08-26 08:23:11,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121928585] [2023-08-26 08:23:11,680 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 08:23:11,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-26 08:23:11,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:23:11,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-26 08:23:11,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2023-08-26 08:23:11,686 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 784 [2023-08-26 08:23:11,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 151 transitions, 798 flow. Second operand has 32 states, 32 states have (on average 366.34375) internal successors, (11723), 32 states have internal predecessors, (11723), 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) [2023-08-26 08:23:11,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:23:11,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 784 [2023-08-26 08:23:11,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:23:12,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:23:14,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] Received shutdown request... [2023-08-26 08:23:16,213 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 08:23:16,213 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 08:23:17,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-26 08:23:17,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 08:23:17,322 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr6ASSERT_VIOLATIONASSERT (30 of 31 remaining) [2023-08-26 08:23:17,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 08:23:17,323 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-08-26 08:23:17,324 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr4ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2023-08-26 08:23:17,324 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2023-08-26 08:23:17,324 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2023-08-26 08:23:17,324 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr5ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2023-08-26 08:23:17,324 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2023-08-26 08:23:17,324 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2023-08-26 08:23:17,324 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2023-08-26 08:23:17,324 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2023-08-26 08:23:17,324 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr5ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2023-08-26 08:23:17,324 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr7ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr6ASSERT_VIOLATIONASSERT (14 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2023-08-26 08:23:17,325 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr7ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2023-08-26 08:23:17,326 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2023-08-26 08:23:17,326 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1] [2023-08-26 08:23:17,327 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT (1/2) [2023-08-26 08:23:17,329 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 08:23:17,329 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 08:23:17,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 08:23:17 BasicIcfg [2023-08-26 08:23:17,344 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 08:23:17,344 INFO L158 Benchmark]: Toolchain (without parser) took 883776.17ms. Allocated memory was 362.8MB in the beginning and 650.1MB in the end (delta: 287.3MB). Free memory was 337.2MB in the beginning and 247.0MB in the end (delta: 90.1MB). Peak memory consumption was 376.4MB. Max. memory is 16.0GB. [2023-08-26 08:23:17,344 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 362.8MB. Free memory is still 339.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 08:23:17,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 553.21ms. Allocated memory is still 362.8MB. Free memory was 337.2MB in the beginning and 304.7MB in the end (delta: 32.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-26 08:23:17,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.51ms. Allocated memory is still 362.8MB. Free memory was 304.7MB in the beginning and 300.0MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-08-26 08:23:17,345 INFO L158 Benchmark]: Boogie Preprocessor took 39.62ms. Allocated memory is still 362.8MB. Free memory was 300.0MB in the beginning and 295.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 08:23:17,345 INFO L158 Benchmark]: RCFGBuilder took 683.84ms. Allocated memory is still 362.8MB. Free memory was 295.8MB in the beginning and 305.0MB in the end (delta: -9.2MB). Peak memory consumption was 13.4MB. Max. memory is 16.0GB. [2023-08-26 08:23:17,345 INFO L158 Benchmark]: TraceAbstraction took 882432.11ms. Allocated memory was 362.8MB in the beginning and 650.1MB in the end (delta: 287.3MB). Free memory was 305.0MB in the beginning and 247.0MB in the end (delta: 57.9MB). Peak memory consumption was 342.0MB. Max. memory is 16.0GB. [2023-08-26 08:23:17,346 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 362.8MB. Free memory is still 339.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 553.21ms. Allocated memory is still 362.8MB. Free memory was 337.2MB in the beginning and 304.7MB in the end (delta: 32.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 63.51ms. Allocated memory is still 362.8MB. Free memory was 304.7MB in the beginning and 300.0MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.62ms. Allocated memory is still 362.8MB. Free memory was 300.0MB in the beginning and 295.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 683.84ms. Allocated memory is still 362.8MB. Free memory was 295.8MB in the beginning and 305.0MB in the end (delta: -9.2MB). Peak memory consumption was 13.4MB. Max. memory is 16.0GB. * TraceAbstraction took 882432.11ms. Allocated memory was 362.8MB in the beginning and 650.1MB in the end (delta: 287.3MB). Free memory was 305.0MB in the beginning and 247.0MB in the end (delta: 57.9MB). Peak memory consumption was 342.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 756.4s, 373 PlacesBefore, 90 PlacesAfterwards, 397 TransitionsBefore, 104 TransitionsAfterwards, 8220 CoEnabledTransitionPairs, 8 FixpointIterations, 252 TrivialSequentialCompositions, 93 ConcurrentSequentialCompositions, 14 TrivialYvCompositions, 18 ConcurrentYvCompositions, 10 ChoiceCompositions, 387 TotalNumberOfCompositions, 28691 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7545, independent: 6592, independent conditional: 0, independent unconditional: 6592, dependent: 953, dependent conditional: 0, dependent unconditional: 953, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3834, independent: 3748, independent conditional: 0, independent unconditional: 3748, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7545, independent: 2844, independent conditional: 0, independent unconditional: 2844, dependent: 867, dependent conditional: 0, dependent unconditional: 867, unknown: 3834, unknown conditional: 0, unknown unconditional: 3834] , Statistics on independence cache: Total cache size (in pairs): 281, Positive cache size: 221, Positive conditional cache size: 0, Positive unconditional cache size: 221, Negative cache size: 60, Negative conditional cache size: 0, Negative unconditional cache size: 60, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 998]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1053]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1039]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1031]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1053]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1053]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1019]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1024]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1050]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1039]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1029]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1054]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1073]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1020]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1053]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1071]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1053]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1019]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1071]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1032]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1033]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1020]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1030]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 491 locations, 32 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 882.3s, OverallIterations: 11, TraceHistogramMax: 22, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 104.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 756.6s, HoareTripleCheckerStatistics: 17 mSolverCounterUnknown, 380 SdHoareTripleChecker+Valid, 103.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 380 mSDsluCounter, 145 SdHoareTripleChecker+Invalid, 102.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 173 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1776 IncrementalHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 173 mSolverCounterUnsat, 111 mSDtfsCounter, 1776 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 302 GetRequests, 203 SyntacticMatches, 16 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=812occurred in iteration=9, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.3s SsaConstructionTime, 4.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 224 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 795 SizeOfPredicates, 3 NumberOfNonLiveVariables, 38284 ConjunctsInSsa, 107 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 335/973 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown