/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp2x3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 18:22:24,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 18:22:24,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 18:22:24,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 18:22:24,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 18:22:24,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 18:22:24,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 18:22:24,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 18:22:24,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 18:22:24,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 18:22:24,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 18:22:24,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 18:22:24,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 18:22:24,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 18:22:24,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 18:22:24,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 18:22:24,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 18:22:24,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 18:22:24,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 18:22:24,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 18:22:24,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 18:22:24,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 18:22:24,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 18:22:24,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 18:22:24,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 18:22:24,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 18:22:24,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 18:22:24,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 18:22:24,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 18:22:24,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 18:22:24,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 18:22:24,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 18:22:24,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 18:22:24,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 18:22:24,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 18:22:24,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 18:22:24,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 18:22:24,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 18:22:24,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 18:22:24,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 18:22:24,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 18:22:24,340 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 18:22:24,367 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 18:22:24,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 18:22:24,369 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 18:22:24,369 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 18:22:24,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 18:22:24,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 18:22:24,369 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 18:22:24,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 18:22:24,370 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 18:22:24,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 18:22:24,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 18:22:24,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 18:22:24,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 18:22:24,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 18:22:24,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 18:22:24,371 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 18:22:24,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 18:22:24,371 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 18:22:24,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 18:22:24,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 18:22:24,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 18:22:24,372 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 18:22:24,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 18:22:24,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:22:24,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 18:22:24,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 18:22:24,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 18:22:24,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 18:22:24,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 18:22:24,374 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 18:22:24,374 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 18:22:24,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 18:22:24,374 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 18:22:24,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 18:22:24,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 18:22:24,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 18:22:24,594 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 18:22:24,595 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 18:22:24,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x3.wvr.c [2022-03-15 18:22:24,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d03b7f89/d3618c8e7be04295ba46805b5b486899/FLAGe78cf1ec6 [2022-03-15 18:22:24,992 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 18:22:24,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x3.wvr.c [2022-03-15 18:22:24,997 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d03b7f89/d3618c8e7be04295ba46805b5b486899/FLAGe78cf1ec6 [2022-03-15 18:22:25,007 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d03b7f89/d3618c8e7be04295ba46805b5b486899 [2022-03-15 18:22:25,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 18:22:25,010 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 18:22:25,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 18:22:25,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 18:22:25,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 18:22:25,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:22:25" (1/1) ... [2022-03-15 18:22:25,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d55aefd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:22:25, skipping insertion in model container [2022-03-15 18:22:25,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:22:25" (1/1) ... [2022-03-15 18:22:25,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 18:22:25,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 18:22:25,189 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-exp2x3.wvr.c[2237,2250] [2022-03-15 18:22:25,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:22:25,198 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 18:22:25,214 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-exp2x3.wvr.c[2237,2250] [2022-03-15 18:22:25,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:22:25,224 INFO L208 MainTranslator]: Completed translation [2022-03-15 18:22:25,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:22:25 WrapperNode [2022-03-15 18:22:25,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 18:22:25,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 18:22:25,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 18:22:25,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 18:22:25,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:22:25" (1/1) ... [2022-03-15 18:22:25,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:22:25" (1/1) ... [2022-03-15 18:22:25,256 INFO L137 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-03-15 18:22:25,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 18:22:25,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 18:22:25,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 18:22:25,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 18:22:25,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:22:25" (1/1) ... [2022-03-15 18:22:25,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:22:25" (1/1) ... [2022-03-15 18:22:25,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:22:25" (1/1) ... [2022-03-15 18:22:25,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:22:25" (1/1) ... [2022-03-15 18:22:25,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:22:25" (1/1) ... [2022-03-15 18:22:25,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:22:25" (1/1) ... [2022-03-15 18:22:25,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:22:25" (1/1) ... [2022-03-15 18:22:25,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 18:22:25,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 18:22:25,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 18:22:25,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 18:22:25,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:22:25" (1/1) ... [2022-03-15 18:22:25,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:22:25,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:22:25,321 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) [2022-03-15 18:22:25,327 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 [2022-03-15 18:22:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 18:22:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 18:22:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 18:22:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 18:22:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 18:22:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 18:22:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 18:22:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 18:22:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 18:22:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 18:22:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 18:22:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 18:22:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 18:22:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 18:22:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 18:22:25,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 18:22:25,354 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 18:22:25,474 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 18:22:25,477 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 18:22:25,781 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 18:22:25,787 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 18:22:25,787 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-15 18:22:25,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:22:25 BoogieIcfgContainer [2022-03-15 18:22:25,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 18:22:25,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 18:22:25,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 18:22:25,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 18:22:25,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 06:22:25" (1/3) ... [2022-03-15 18:22:25,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c20fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:22:25, skipping insertion in model container [2022-03-15 18:22:25,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:22:25" (2/3) ... [2022-03-15 18:22:25,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c20fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:22:25, skipping insertion in model container [2022-03-15 18:22:25,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:22:25" (3/3) ... [2022-03-15 18:22:25,794 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp2x3.wvr.c [2022-03-15 18:22:25,797 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 18:22:25,797 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 18:22:25,798 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 18:22:25,798 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 18:22:25,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,830 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,830 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,831 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,831 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,831 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,831 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,832 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,832 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,832 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,832 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,835 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,836 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,839 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,839 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:22:25,851 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-15 18:22:25,884 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 18:22:25,889 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 18:22:25,889 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 18:22:25,900 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 18:22:25,908 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 125 transitions, 282 flow [2022-03-15 18:22:25,910 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 125 transitions, 282 flow [2022-03-15 18:22:25,912 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 125 transitions, 282 flow [2022-03-15 18:22:25,983 INFO L129 PetriNetUnfolder]: 10/121 cut-off events. [2022-03-15 18:22:25,983 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-03-15 18:22:25,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 121 events. 10/121 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2022-03-15 18:22:25,992 INFO L116 LiptonReduction]: Number of co-enabled transitions 1224 [2022-03-15 18:22:28,708 INFO L131 LiptonReduction]: Checked pairs total: 1600 [2022-03-15 18:22:28,708 INFO L133 LiptonReduction]: Total number of compositions: 109 [2022-03-15 18:22:28,714 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 30 transitions, 92 flow [2022-03-15 18:22:28,743 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 92 states, 91 states have (on average 3.7362637362637363) internal successors, (340), 91 states have internal predecessors, (340), 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) [2022-03-15 18:22:28,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 91 states have (on average 3.7362637362637363) internal successors, (340), 91 states have internal predecessors, (340), 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) [2022-03-15 18:22:28,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-15 18:22:28,750 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:22:28,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:22:28,751 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:22:28,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:22:28,754 INFO L85 PathProgramCache]: Analyzing trace with hash 933422876, now seen corresponding path program 1 times [2022-03-15 18:22:28,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:22:28,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326829668] [2022-03-15 18:22:28,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:22:28,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:22:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:22:28,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:22:28,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:22:28,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326829668] [2022-03-15 18:22:28,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326829668] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:22:28,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:22:28,993 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 18:22:28,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1102614403] [2022-03-15 18:22:28,994 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:22:28,999 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:22:29,022 INFO L252 McrAutomatonBuilder]: Finished intersection with 92 states and 208 transitions. [2022-03-15 18:22:29,023 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:22:30,811 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:22:30,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 18:22:30,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:22:30,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 18:22:30,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:22:30,830 INFO L87 Difference]: Start difference. First operand has 92 states, 91 states have (on average 3.7362637362637363) internal successors, (340), 91 states have internal predecessors, (340), 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) Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-03-15 18:22:30,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:22:30,929 INFO L93 Difference]: Finished difference Result 181 states and 677 transitions. [2022-03-15 18:22:30,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:22:30,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) Word has length 21 [2022-03-15 18:22:30,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:22:30,940 INFO L225 Difference]: With dead ends: 181 [2022-03-15 18:22:30,940 INFO L226 Difference]: Without dead ends: 172 [2022-03-15 18:22:30,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 9 SyntacticMatches, 61 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:22:30,943 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:22:30,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:22:30,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-03-15 18:22:30,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2022-03-15 18:22:30,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 3.7953216374269005) internal successors, (649), 171 states have internal predecessors, (649), 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) [2022-03-15 18:22:30,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 649 transitions. [2022-03-15 18:22:30,993 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 649 transitions. Word has length 21 [2022-03-15 18:22:30,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:22:30,994 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 649 transitions. [2022-03-15 18:22:30,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-03-15 18:22:30,994 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 649 transitions. [2022-03-15 18:22:30,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-15 18:22:30,995 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:22:30,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:22:30,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 18:22:30,996 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:22:30,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:22:30,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1486202557, now seen corresponding path program 1 times [2022-03-15 18:22:30,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:22:30,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946863374] [2022-03-15 18:22:30,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:22:30,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:22:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:22:31,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:22:31,087 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:22:31,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946863374] [2022-03-15 18:22:31,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946863374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:22:31,088 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:22:31,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 18:22:31,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [500720877] [2022-03-15 18:22:31,088 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:22:31,090 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:22:31,110 INFO L252 McrAutomatonBuilder]: Finished intersection with 122 states and 294 transitions. [2022-03-15 18:22:31,110 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:22:32,684 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 14 new interpolants: [850#(or (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))), 847#(< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)), 851#(or (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))), 853#(or (< (mod (* 2 ~x1~0) 4294967296) (mod ~n~0 4294967296)) (not (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)))), 849#(or (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296))), 855#(<= (mod ~n~0 4294967296) (mod ~x1~0 4294967296)), 859#(or (<= (mod ~n~0 4294967296) (mod ~x1~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))), 848#(< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)), 852#(or (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))), 856#(or (<= (mod ~n~0 4294967296) (mod ~x1~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296))), 854#(or (< (mod (* 2 ~x1~0) 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (not (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)))), 857#(or (<= (mod ~n~0 4294967296) (mod ~x1~0 4294967296)) (< (mod (* 2 ~x1~0) 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))), 858#(or (< (mod (* 2 ~x1~0) 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296)) (not (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)))), 860#(or (<= (mod ~n~0 4294967296) (mod ~x1~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296)))] [2022-03-15 18:22:32,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 18:22:32,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:22:32,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 18:22:32,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-03-15 18:22:32,686 INFO L87 Difference]: Start difference. First operand 172 states and 649 transitions. Second operand has 18 states, 18 states have (on average 7.277777777777778) internal successors, (131), 17 states have internal predecessors, (131), 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) [2022-03-15 18:22:33,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:22:33,412 INFO L93 Difference]: Finished difference Result 386 states and 1465 transitions. [2022-03-15 18:22:33,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 18:22:33,412 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.277777777777778) internal successors, (131), 17 states have internal predecessors, (131), 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) Word has length 22 [2022-03-15 18:22:33,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:22:33,415 INFO L225 Difference]: With dead ends: 386 [2022-03-15 18:22:33,415 INFO L226 Difference]: Without dead ends: 380 [2022-03-15 18:22:33,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 79 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2022-03-15 18:22:33,417 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 208 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 18:22:33,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 0 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 18:22:33,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-03-15 18:22:33,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 314. [2022-03-15 18:22:33,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 4.0095846645367414) internal successors, (1255), 313 states have internal predecessors, (1255), 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) [2022-03-15 18:22:33,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 1255 transitions. [2022-03-15 18:22:33,450 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 1255 transitions. Word has length 22 [2022-03-15 18:22:33,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:22:33,451 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 1255 transitions. [2022-03-15 18:22:33,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.277777777777778) internal successors, (131), 17 states have internal predecessors, (131), 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) [2022-03-15 18:22:33,451 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 1255 transitions. [2022-03-15 18:22:33,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-15 18:22:33,454 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:22:33,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:22:33,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 18:22:33,455 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:22:33,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:22:33,455 INFO L85 PathProgramCache]: Analyzing trace with hash 230676278, now seen corresponding path program 1 times [2022-03-15 18:22:33,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:22:33,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29057090] [2022-03-15 18:22:33,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:22:33,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:22:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:22:33,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:22:33,562 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:22:33,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29057090] [2022-03-15 18:22:33,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29057090] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:22:33,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049280711] [2022-03-15 18:22:33,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:22:33,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:22:33,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:22:33,565 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:22:33,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 18:22:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:22:33,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-15 18:22:33,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:22:33,900 INFO L884 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2022-03-15 18:25:14,912 WARN L228 SmtUtils]: Spent 2.48m on a formula simplification. DAG size of input: 14617 DAG size of output: 7130 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-03-15 18:27:14,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:27:14,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:27:14,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:27:14,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049280711] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:27:14,643 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:27:14,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-03-15 18:27:14,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1646315373] [2022-03-15 18:27:14,643 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:27:14,645 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:27:14,665 INFO L252 McrAutomatonBuilder]: Finished intersection with 122 states and 294 transitions. [2022-03-15 18:27:14,666 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:27:16,515 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [2019#(< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)), 2020#(or (not (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296))) (< (mod (* 2 ~x4~0) 4294967296) (mod ~n~0 4294967296))), 2022#(or (<= (mod ~n~0 4294967296) (mod ~x4~0 4294967296)) (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x4~0) 4294967296) (mod ~n~0 4294967296))), 2021#(or (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)))] [2022-03-15 18:27:16,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 18:27:16,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:27:16,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 18:27:16,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-15 18:27:16,516 INFO L87 Difference]: Start difference. First operand 314 states and 1255 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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) [2022-03-15 18:27:16,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:27:16,870 INFO L93 Difference]: Finished difference Result 610 states and 2367 transitions. [2022-03-15 18:27:16,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 18:27:16,870 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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) Word has length 22 [2022-03-15 18:27:16,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:27:16,874 INFO L225 Difference]: With dead ends: 610 [2022-03-15 18:27:16,874 INFO L226 Difference]: Without dead ends: 610 [2022-03-15 18:27:16,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 122 SyntacticMatches, 14 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 18:27:16,875 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 49 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 18:27:16,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 0 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 18:27:16,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-03-15 18:27:16,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 462. [2022-03-15 18:27:16,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 461 states have (on average 4.140997830802603) internal successors, (1909), 461 states have internal predecessors, (1909), 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) [2022-03-15 18:27:16,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 1909 transitions. [2022-03-15 18:27:16,908 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 1909 transitions. Word has length 22 [2022-03-15 18:27:16,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:27:16,909 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 1909 transitions. [2022-03-15 18:27:16,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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) [2022-03-15 18:27:16,909 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 1909 transitions. [2022-03-15 18:27:16,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-15 18:27:16,910 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:27:16,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:27:16,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-15 18:27:17,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:27:17,124 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:27:17,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:27:17,124 INFO L85 PathProgramCache]: Analyzing trace with hash 722541836, now seen corresponding path program 1 times [2022-03-15 18:27:17,125 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:27:17,125 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400018964] [2022-03-15 18:27:17,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:27:17,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:27:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:27:17,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:27:17,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:27:17,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400018964] [2022-03-15 18:27:17,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400018964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:27:17,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:27:17,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 18:27:17,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [906931826] [2022-03-15 18:27:17,233 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:27:17,236 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:27:17,265 INFO L252 McrAutomatonBuilder]: Finished intersection with 128 states and 314 transitions. [2022-03-15 18:27:17,265 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:27:18,185 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [3568#(or (<= (mod ~n~0 4294967296) (mod ~x3~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296))), 3567#(< (mod ~x4~0 4294967296) (mod ~n~0 4294967296))] [2022-03-15 18:27:18,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 18:27:18,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:27:18,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 18:27:18,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-15 18:27:18,186 INFO L87 Difference]: Start difference. First operand 462 states and 1909 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 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) [2022-03-15 18:27:18,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:27:18,342 INFO L93 Difference]: Finished difference Result 598 states and 2339 transitions. [2022-03-15 18:27:18,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 18:27:18,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 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) Word has length 22 [2022-03-15 18:27:18,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:27:18,346 INFO L225 Difference]: With dead ends: 598 [2022-03-15 18:27:18,346 INFO L226 Difference]: Without dead ends: 586 [2022-03-15 18:27:18,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 97 SyntacticMatches, 7 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-15 18:27:18,347 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 52 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:27:18,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 0 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:27:18,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-03-15 18:27:18,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 462. [2022-03-15 18:27:18,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 461 states have (on average 4.086767895878525) internal successors, (1884), 461 states have internal predecessors, (1884), 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) [2022-03-15 18:27:18,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 1884 transitions. [2022-03-15 18:27:18,365 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 1884 transitions. Word has length 22 [2022-03-15 18:27:18,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:27:18,366 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 1884 transitions. [2022-03-15 18:27:18,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 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) [2022-03-15 18:27:18,366 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 1884 transitions. [2022-03-15 18:27:18,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-03-15 18:27:18,367 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:27:18,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:27:18,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 18:27:18,368 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:27:18,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:27:18,368 INFO L85 PathProgramCache]: Analyzing trace with hash 438481308, now seen corresponding path program 1 times [2022-03-15 18:27:18,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:27:18,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684093876] [2022-03-15 18:27:18,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:27:18,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:27:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:27:18,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:27:18,566 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:27:18,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684093876] [2022-03-15 18:27:18,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684093876] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:27:18,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576873403] [2022-03-15 18:27:18,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:27:18,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:27:18,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:27:18,576 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) [2022-03-15 18:27:18,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 18:27:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:27:18,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-15 18:27:18,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:27:50,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:27:50,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:30:07,583 WARN L228 SmtUtils]: Spent 2.08m on a formula simplification. DAG size of input: 15446 DAG size of output: 15186 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2022-03-15 18:36:59,830 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 18:36:59,831 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 [2022-03-15 18:37:00,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-15 18:37:01,031 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 [2022-03-15 18:37:01,040 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 [2022-03-15 18:37:01,041 WARN L325 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-15 18:37:01,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 18:37:01,041 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:272) 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.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.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) 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) [2022-03-15 18:37:01,045 INFO L158 Benchmark]: Toolchain (without parser) took 876034.15ms. Allocated memory was 160.4MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 108.7MB in the beginning and 673.7MB in the end (delta: -565.0MB). Peak memory consumption was 869.6MB. Max. memory is 8.0GB. [2022-03-15 18:37:01,045 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 160.4MB. Free memory was 125.6MB in the beginning and 125.4MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 18:37:01,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.41ms. Allocated memory is still 160.4MB. Free memory was 108.4MB in the beginning and 135.3MB in the end (delta: -26.8MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-03-15 18:37:01,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.81ms. Allocated memory is still 160.4MB. Free memory was 135.3MB in the beginning and 133.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 18:37:01,046 INFO L158 Benchmark]: Boogie Preprocessor took 20.40ms. Allocated memory is still 160.4MB. Free memory was 133.6MB in the beginning and 132.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 18:37:01,046 INFO L158 Benchmark]: RCFGBuilder took 498.74ms. Allocated memory is still 160.4MB. Free memory was 132.1MB in the beginning and 119.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-15 18:37:01,046 INFO L158 Benchmark]: TraceAbstraction took 875254.31ms. Allocated memory was 160.4MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 118.5MB in the beginning and 673.7MB in the end (delta: -555.2MB). Peak memory consumption was 880.5MB. Max. memory is 8.0GB. [2022-03-15 18:37:01,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 160.4MB. Free memory was 125.6MB in the beginning and 125.4MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 211.41ms. Allocated memory is still 160.4MB. Free memory was 108.4MB in the beginning and 135.3MB in the end (delta: -26.8MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.81ms. Allocated memory is still 160.4MB. Free memory was 135.3MB in the beginning and 133.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.40ms. Allocated memory is still 160.4MB. Free memory was 133.6MB in the beginning and 132.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 498.74ms. Allocated memory is still 160.4MB. Free memory was 132.1MB in the beginning and 119.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 875254.31ms. Allocated memory was 160.4MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 118.5MB in the beginning and 673.7MB in the end (delta: -555.2MB). Peak memory consumption was 880.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 128 PlacesBefore, 39 PlacesAfterwards, 125 TransitionsBefore, 30 TransitionsAfterwards, 1224 CoEnabledTransitionPairs, 7 FixpointIterations, 64 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 8 ConcurrentYvCompositions, 6 ChoiceCompositions, 109 TotalNumberOfCompositions, 1600 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1600, positive: 1600, positive conditional: 0, positive unconditional: 1600, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 659, positive: 659, positive conditional: 0, positive unconditional: 659, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1600, positive: 941, positive conditional: 0, positive unconditional: 941, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 659, unknown conditional: 0, unknown unconditional: 659] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - 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:272) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown