/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 17:02:52,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 17:02:52,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 17:02:52,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 17:02:52,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 17:02:52,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 17:02:52,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 17:02:52,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks.epf [2022-02-09 17:02:52,896 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 17:02:52,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 17:02:52,897 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 17:02:52,897 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 17:02:52,897 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 17:02:52,897 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 17:02:52,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 17:02:52,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 17:02:52,898 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 17:02:52,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 17:02:52,898 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 17:02:52,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 17:02:52,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 17:02:52,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 17:02:52,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 17:02:52,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 17:02:52,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 17:02:52,899 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 17:02:52,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 17:02:52,901 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 17:02:52,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 17:02:52,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 17:02:52,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 17:02:52,902 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 17:02:52,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 17:02:52,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 17:02:52,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 17:02:52,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 17:02:52,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 17:02:52,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 17:02:52,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 17:02:52,904 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 17:02:52,904 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 17:02:52,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 17:02:52,904 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-09 17:02:52,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 17:02:53,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 17:02:53,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 17:02:53,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 17:02:53,122 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 17:02:53,130 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 17:02:53,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c [2022-02-09 17:02:53,186 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2e5f9c57/de7928a511ec4653becfb36b4b32913f/FLAG6b2cff6a9 [2022-02-09 17:02:53,524 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 17:02:53,524 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c [2022-02-09 17:02:53,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2e5f9c57/de7928a511ec4653becfb36b4b32913f/FLAG6b2cff6a9 [2022-02-09 17:02:53,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2e5f9c57/de7928a511ec4653becfb36b4b32913f [2022-02-09 17:02:53,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 17:02:53,954 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 17:02:53,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 17:02:53,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 17:02:53,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 17:02:53,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 05:02:53" (1/1) ... [2022-02-09 17:02:53,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749dad2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:53, skipping insertion in model container [2022-02-09 17:02:53,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 05:02:53" (1/1) ... [2022-02-09 17:02:53,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 17:02:53,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 17:02:54,141 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c[1849,1862] [2022-02-09 17:02:54,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 17:02:54,149 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 17:02:54,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c[1849,1862] [2022-02-09 17:02:54,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 17:02:54,183 INFO L208 MainTranslator]: Completed translation [2022-02-09 17:02:54,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:54 WrapperNode [2022-02-09 17:02:54,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 17:02:54,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 17:02:54,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 17:02:54,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 17:02:54,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:54" (1/1) ... [2022-02-09 17:02:54,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:54" (1/1) ... [2022-02-09 17:02:54,212 INFO L137 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-02-09 17:02:54,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 17:02:54,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 17:02:54,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 17:02:54,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 17:02:54,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:54" (1/1) ... [2022-02-09 17:02:54,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:54" (1/1) ... [2022-02-09 17:02:54,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:54" (1/1) ... [2022-02-09 17:02:54,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:54" (1/1) ... [2022-02-09 17:02:54,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:54" (1/1) ... [2022-02-09 17:02:54,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:54" (1/1) ... [2022-02-09 17:02:54,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:54" (1/1) ... [2022-02-09 17:02:54,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 17:02:54,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 17:02:54,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 17:02:54,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 17:02:54,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:54" (1/1) ... [2022-02-09 17:02:54,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 17:02:54,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 17:02:54,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-09 17:02:54,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-09 17:02:54,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-09 17:02:54,304 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 17:02:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 17:02:54,304 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 17:02:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 17:02:54,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-09 17:02:54,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 17:02:54,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 17:02:54,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 17:02:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 17:02:54,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-09 17:02:54,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 17:02:54,306 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 17:02:54,352 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 17:02:54,353 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 17:02:54,451 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 17:02:54,455 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 17:02:54,455 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-09 17:02:54,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 05:02:54 BoogieIcfgContainer [2022-02-09 17:02:54,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 17:02:54,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 17:02:54,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 17:02:54,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 17:02:54,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 05:02:53" (1/3) ... [2022-02-09 17:02:54,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72668769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 05:02:54, skipping insertion in model container [2022-02-09 17:02:54,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 05:02:54" (2/3) ... [2022-02-09 17:02:54,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72668769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 05:02:54, skipping insertion in model container [2022-02-09 17:02:54,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 05:02:54" (3/3) ... [2022-02-09 17:02:54,462 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp1x3.wvr.c [2022-02-09 17:02:54,465 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 17:02:54,465 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 17:02:54,465 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 17:02:54,465 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 17:02:54,485 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:54,485 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:54,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:54,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:54,487 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:54,487 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:54,487 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:54,487 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:54,489 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:54,489 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:54,491 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:54,491 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 17:02:54,494 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-09 17:02:54,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 17:02:54,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 17:02:54,522 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 17:02:54,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-09 17:02:54,552 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 17:02:54,556 INFO L339 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=false, 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 17:02:54,557 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-09 17:02:54,581 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 82 places, 81 transitions, 178 flow [2022-02-09 17:02:54,612 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 189 states, 188 states have (on average 2.4468085106382977) internal successors, (460), 188 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 17:02:54,651 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 116 transitions and produced 117 states. [2022-02-09 17:02:54,653 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 17:02:54,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 17:02:54,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1865310748, now seen corresponding path program 1 times [2022-02-09 17:02:54,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 17:02:54,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776358844] [2022-02-09 17:02:54,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 17:02:54,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 17:02:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 17:02:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 17:02:54,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 17:02:54,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776358844] [2022-02-09 17:02:54,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776358844] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 17:02:54,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 17:02:54,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 17:02:54,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191084630] [2022-02-09 17:02:54,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 17:02:54,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 17:02:54,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 17:02:54,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 17:02:54,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 17:02:54,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:02:54,793 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 17:02:54,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 17:02:54,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:02:54,809 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 116 transitions and produced 117 states. [2022-02-09 17:02:54,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:02:54,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 17:02:54,810 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 17:02:54,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 17:02:54,811 INFO L85 PathProgramCache]: Analyzing trace with hash 2145271880, now seen corresponding path program 1 times [2022-02-09 17:02:54,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 17:02:54,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170542032] [2022-02-09 17:02:54,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 17:02:54,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 17:02:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 17:02:55,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 17:02:55,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 17:02:55,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170542032] [2022-02-09 17:02:55,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170542032] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 17:02:55,024 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 17:02:55,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-09 17:02:55,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562892854] [2022-02-09 17:02:55,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 17:02:55,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-09 17:02:55,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 17:02:55,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-09 17:02:55,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-09 17:02:55,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:02:55,030 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 17:02:55,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 17:02:55,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:02:55,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:02:55,236 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 148 transitions and produced 143 states. [2022-02-09 17:02:55,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:02:55,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 17:02:55,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 17:02:55,238 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 17:02:55,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 17:02:55,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1390745658, now seen corresponding path program 1 times [2022-02-09 17:02:55,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 17:02:55,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702104216] [2022-02-09 17:02:55,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 17:02:55,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 17:02:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 17:02:55,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 17:02:55,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 17:02:55,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702104216] [2022-02-09 17:02:55,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702104216] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 17:02:55,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 17:02:55,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 17:02:55,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155022635] [2022-02-09 17:02:55,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 17:02:55,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 17:02:55,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 17:02:55,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 17:02:55,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-09 17:02:55,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:02:55,385 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 17:02:55,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 17:02:55,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:02:55,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 17:02:55,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:02:55,539 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 185 transitions and produced 165 states. [2022-02-09 17:02:55,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:02:55,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 17:02:55,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 17:02:55,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-09 17:02:55,541 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 17:02:55,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 17:02:55,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1425337354, now seen corresponding path program 1 times [2022-02-09 17:02:55,542 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 17:02:55,542 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519096353] [2022-02-09 17:02:55,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 17:02:55,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 17:02:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 17:02:55,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 17:02:55,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 17:02:55,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519096353] [2022-02-09 17:02:55,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519096353] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 17:02:55,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061362990] [2022-02-09 17:02:55,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 17:02:55,680 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 17:02:55,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 17:02:55,682 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 17:02:55,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 17:02:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 17:02:55,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-09 17:02:55,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 17:02:56,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 17:02:56,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 17:02:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 17:02:56,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061362990] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 17:02:56,276 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 17:02:56,277 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-02-09 17:02:56,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306244908] [2022-02-09 17:02:56,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 17:02:56,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 17:02:56,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 17:02:56,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 17:02:56,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-02-09 17:02:56,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:02:56,278 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 17:02:56,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 17:02:56,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:02:56,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 17:02:56,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 17:02:56,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:02:56,474 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 191 transitions and produced 171 states. [2022-02-09 17:02:56,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:02:56,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 17:02:56,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 17:02:56,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-09 17:02:56,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-09 17:02:56,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-02-09 17:02:56,676 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 17:02:56,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 17:02:56,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1758090488, now seen corresponding path program 1 times [2022-02-09 17:02:56,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 17:02:56,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912586745] [2022-02-09 17:02:56,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 17:02:56,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 17:02:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 17:02:57,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 17:02:57,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 17:02:57,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912586745] [2022-02-09 17:02:57,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912586745] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 17:02:57,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004105257] [2022-02-09 17:02:57,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 17:02:57,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 17:02:57,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 17:02:57,009 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 17:02:57,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-09 17:02:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 17:02:57,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 17 conjunts are in the unsatisfiable core [2022-02-09 17:02:57,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 17:04:17,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 17:04:17,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 17:04:37,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 17:04:37,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004105257] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 17:04:37,632 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 17:04:37,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 25 [2022-02-09 17:04:37,633 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680788914] [2022-02-09 17:04:37,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 17:04:37,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-09 17:04:37,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 17:04:37,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-09 17:04:37,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=469, Unknown=2, NotChecked=0, Total=600 [2022-02-09 17:04:37,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:04:37,636 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 17:04:37,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.4) internal successors, (110), 25 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 17:04:37,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:04:37,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 17:04:37,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 17:04:37,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-09 17:04:37,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:04:45,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-09 17:04:47,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-09 17:04:48,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-09 17:05:07,389 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 326 transitions and produced 260 states. [2022-02-09 17:05:07,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 17:05:07,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 17:05:07,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 17:05:07,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-09 17:05:07,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-09 17:05:07,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-09 17:05:07,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 17:05:07,590 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 17:05:07,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 17:05:07,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1491465416, now seen corresponding path program 2 times [2022-02-09 17:05:07,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 17:05:07,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629599203] [2022-02-09 17:05:07,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 17:05:07,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 17:05:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 17:05:09,894 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 17:05:09,895 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 17:05:09,895 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629599203] [2022-02-09 17:05:09,895 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629599203] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 17:05:09,895 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675035200] [2022-02-09 17:05:09,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 17:05:09,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 17:05:09,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 17:05:09,897 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 17:05:09,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 17:05:24,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 17:05:24,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 17:05:24,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 24 conjunts are in the unsatisfiable core [2022-02-09 17:05:24,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 17:07:47,918 WARN L228 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 29 DAG size of output: 1 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-02-09 17:16:50,998 WARN L228 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 29 DAG size of output: 1 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-02-09 17:17:06,256 WARN L228 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2022-02-09 17:17:38,004 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-09 17:17:38,011 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-09 17:17:38,011 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-09 17:17:39,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-09 17:17:39,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-09 17:17:39,205 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-02-09 17:17:39,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2022-02-09 17:17:39,211 WARN L325 FreeRefinementEngine]: Global settings require throwing the following exception [2022-02-09 17:17:39,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-09 17:17:39,212 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:306) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.pop(UndoableWrapperScript.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.restore(UndoableWrapperScript.java:87) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:260) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:1067) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.pushInner(QuantifierPusher.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:177) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:635) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:496) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.pushInner(QuantifierPusher.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:177) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:635) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-02-09 17:17:39,214 INFO L158 Benchmark]: Toolchain (without parser) took 885259.52ms. Allocated memory was 158.3MB in the beginning and 190.8MB in the end (delta: 32.5MB). Free memory was 113.2MB in the beginning and 61.9MB in the end (delta: 51.3MB). Peak memory consumption was 93.6MB. Max. memory is 8.0GB. [2022-02-09 17:17:39,214 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 158.3MB. Free memory is still 129.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 17:17:39,215 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.18ms. Allocated memory is still 158.3MB. Free memory was 113.0MB in the beginning and 137.1MB in the end (delta: -24.1MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. [2022-02-09 17:17:39,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.74ms. Allocated memory is still 158.3MB. Free memory was 137.1MB in the beginning and 135.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-09 17:17:39,215 INFO L158 Benchmark]: Boogie Preprocessor took 24.49ms. Allocated memory is still 158.3MB. Free memory was 135.3MB in the beginning and 134.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 17:17:39,216 INFO L158 Benchmark]: RCFGBuilder took 218.97ms. Allocated memory is still 158.3MB. Free memory was 134.0MB in the beginning and 123.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-09 17:17:39,216 INFO L158 Benchmark]: TraceAbstraction took 884756.03ms. Allocated memory was 158.3MB in the beginning and 190.8MB in the end (delta: 32.5MB). Free memory was 122.4MB in the beginning and 61.9MB in the end (delta: 60.6MB). Peak memory consumption was 103.1MB. Max. memory is 8.0GB. [2022-02-09 17:17:39,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 158.3MB. Free memory is still 129.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 227.18ms. Allocated memory is still 158.3MB. Free memory was 113.0MB in the beginning and 137.1MB in the end (delta: -24.1MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.74ms. Allocated memory is still 158.3MB. Free memory was 137.1MB in the beginning and 135.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.49ms. Allocated memory is still 158.3MB. Free memory was 135.3MB in the beginning and 134.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 218.97ms. Allocated memory is still 158.3MB. Free memory was 134.0MB in the beginning and 123.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 884756.03ms. Allocated memory was 158.3MB in the beginning and 190.8MB in the end (delta: 32.5MB). Free memory was 122.4MB in the beginning and 61.9MB in the end (delta: 60.6MB). Peak memory consumption was 103.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Not enough levels on assertion stack de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Not enough levels on assertion stack: de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:306) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown