/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 16:49:06,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 16:49:06,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 16:49:06,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-03 16:49:06,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-03 16:49:06,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-03 16:49:06,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-03 16:49:06,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-03 16:49:06,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-03 16:49:06,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-03 16:49:06,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-03 16:49:06,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-03 16:49:06,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-03 16:49:06,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-03 16:49:06,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-03 16:49:06,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-03 16:49:06,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-03 16:49:06,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-03 16:49:06,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-03 16:49:06,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-03 16:49:06,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-03 16:49:06,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-03 16:49:06,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-03 16:49:06,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-03 16:49:06,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-03 16:49:06,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-03 16:49:06,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-03 16:49:06,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-03 16:49:06,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-03 16:49:06,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-03 16:49:06,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-03 16:49:06,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-03 16:49:06,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-03 16:49:06,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 16:49:06,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 16:49:06,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 16:49:06,593 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-FA-NoLbe.epf [2022-03-03 16:49:06,624 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 16:49:06,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 16:49:06,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 16:49:06,625 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 16:49:06,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 16:49:06,626 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 16:49:06,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 16:49:06,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 16:49:06,626 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 16:49:06,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 16:49:06,627 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 16:49:06,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 16:49:06,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 16:49:06,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 16:49:06,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 16:49:06,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 16:49:06,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 16:49:06,630 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 16:49:06,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 16:49:06,630 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 16:49:06,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 16:49:06,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 16:49:06,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 16:49:06,631 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 16:49:06,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 16:49:06,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:49:06,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 16:49:06,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 16:49:06,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 16:49:06,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 16:49:06,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 16:49:06,633 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 16:49:06,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 16:49:06,634 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 16:49:06,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 16:49:06,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 16:49:06,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 16:49:06,847 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 16:49:06,849 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 16:49:06,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2022-03-03 16:49:06,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f578527e/cbc16417317c44b0bc6c72e4948bc86e/FLAG13c80878f [2022-03-03 16:49:07,301 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 16:49:07,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2022-03-03 16:49:07,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f578527e/cbc16417317c44b0bc6c72e4948bc86e/FLAG13c80878f [2022-03-03 16:49:07,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f578527e/cbc16417317c44b0bc6c72e4948bc86e [2022-03-03 16:49:07,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 16:49:07,333 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 16:49:07,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 16:49:07,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 16:49:07,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 16:49:07,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:49:07" (1/1) ... [2022-03-03 16:49:07,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3104a358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:49:07, skipping insertion in model container [2022-03-03 16:49:07,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:49:07" (1/1) ... [2022-03-03 16:49:07,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 16:49:07,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 16:49:07,525 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-exp3x3.wvr.c[2625,2638] [2022-03-03 16:49:07,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:49:07,533 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 16:49:07,553 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-exp3x3.wvr.c[2625,2638] [2022-03-03 16:49:07,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:49:07,564 INFO L208 MainTranslator]: Completed translation [2022-03-03 16:49:07,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:49:07 WrapperNode [2022-03-03 16:49:07,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 16:49:07,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 16:49:07,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 16:49:07,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 16:49:07,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:49:07" (1/1) ... [2022-03-03 16:49:07,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:49:07" (1/1) ... [2022-03-03 16:49:07,595 INFO L137 Inliner]: procedures = 22, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 125 [2022-03-03 16:49:07,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 16:49:07,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 16:49:07,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 16:49:07,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 16:49:07,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:49:07" (1/1) ... [2022-03-03 16:49:07,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:49:07" (1/1) ... [2022-03-03 16:49:07,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:49:07" (1/1) ... [2022-03-03 16:49:07,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:49:07" (1/1) ... [2022-03-03 16:49:07,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:49:07" (1/1) ... [2022-03-03 16:49:07,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:49:07" (1/1) ... [2022-03-03 16:49:07,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:49:07" (1/1) ... [2022-03-03 16:49:07,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 16:49:07,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 16:49:07,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 16:49:07,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 16:49:07,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:49:07" (1/1) ... [2022-03-03 16:49:07,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:49:07,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:49:07,662 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) [2022-03-03 16:49:07,664 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 [2022-03-03 16:49:07,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 16:49:07,694 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-03 16:49:07,694 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-03 16:49:07,694 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-03 16:49:07,695 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-03 16:49:07,695 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-03 16:49:07,695 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-03 16:49:07,695 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-03 16:49:07,697 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-03 16:49:07,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 16:49:07,697 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-03-03 16:49:07,697 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-03-03 16:49:07,697 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-03-03 16:49:07,697 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-03-03 16:49:07,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 16:49:07,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 16:49:07,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 16:49:07,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 16:49:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-03 16:49:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 16:49:07,699 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 16:49:07,807 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 16:49:07,808 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 16:49:08,036 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 16:49:08,044 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 16:49:08,044 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-03-03 16:49:08,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:49:08 BoogieIcfgContainer [2022-03-03 16:49:08,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 16:49:08,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 16:49:08,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 16:49:08,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 16:49:08,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:49:07" (1/3) ... [2022-03-03 16:49:08,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd60045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:49:08, skipping insertion in model container [2022-03-03 16:49:08,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:49:07" (2/3) ... [2022-03-03 16:49:08,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd60045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:49:08, skipping insertion in model container [2022-03-03 16:49:08,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:49:08" (3/3) ... [2022-03-03 16:49:08,052 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp3x3.wvr.c [2022-03-03 16:49:08,055 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 16:49:08,055 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 16:49:08,055 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 16:49:08,055 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 16:49:08,093 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,093 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,094 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,094 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,095 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,095 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,095 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,095 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,096 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,096 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,096 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,096 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,097 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,097 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,098 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,098 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,099 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,099 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,099 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,099 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,100 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,100 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,101 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,101 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,103 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,104 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,105 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,105 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,106 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,106 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,107 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,107 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,108 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,108 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,108 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,109 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:49:08,115 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-03-03 16:49:08,150 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 16:49:08,159 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=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=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 16:49:08,159 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-03-03 16:49:08,170 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 174 places, 169 transitions, 386 flow [2022-03-03 16:49:13,115 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 97705 states, 97704 states have (on average 7.496888561369033) internal successors, (732476), 97704 states have internal predecessors, (732476), 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) [2022-03-03 16:49:13,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 97705 states, 97704 states have (on average 7.496888561369033) internal successors, (732476), 97704 states have internal predecessors, (732476), 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) [2022-03-03 16:49:14,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-03 16:49:14,291 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:49:14,295 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:49:14,297 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 16:49:14,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:49:14,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1305752384, now seen corresponding path program 1 times [2022-03-03 16:49:14,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:49:14,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462184894] [2022-03-03 16:49:14,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:49:14,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:49:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:49:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:49:14,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:49:14,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462184894] [2022-03-03 16:49:14,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462184894] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:49:14,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:49:14,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 16:49:14,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020820848] [2022-03-03 16:49:14,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:49:14,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-03 16:49:14,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:49:14,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-03 16:49:14,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 16:49:14,962 INFO L87 Difference]: Start difference. First operand has 97705 states, 97704 states have (on average 7.496888561369033) internal successors, (732476), 97704 states have internal predecessors, (732476), 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 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 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) [2022-03-03 16:49:17,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:49:17,055 INFO L93 Difference]: Finished difference Result 97705 states and 624075 transitions. [2022-03-03 16:49:17,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 16:49:17,059 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 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 124 [2022-03-03 16:49:17,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:49:18,466 INFO L225 Difference]: With dead ends: 97705 [2022-03-03 16:49:18,466 INFO L226 Difference]: Without dead ends: 97703 [2022-03-03 16:49:18,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 16:49:18,471 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:49:18,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:49:18,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97703 states. [2022-03-03 16:49:23,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97703 to 97703. [2022-03-03 16:49:23,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97703 states, 97702 states have (on average 6.387515096927391) internal successors, (624073), 97702 states have internal predecessors, (624073), 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) [2022-03-03 16:49:25,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97703 states to 97703 states and 624073 transitions. [2022-03-03 16:49:25,403 INFO L78 Accepts]: Start accepts. Automaton has 97703 states and 624073 transitions. Word has length 124 [2022-03-03 16:49:25,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:49:25,404 INFO L470 AbstractCegarLoop]: Abstraction has 97703 states and 624073 transitions. [2022-03-03 16:49:25,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 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) [2022-03-03 16:49:25,405 INFO L276 IsEmpty]: Start isEmpty. Operand 97703 states and 624073 transitions. [2022-03-03 16:49:25,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-03 16:49:25,945 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:49:25,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:49:25,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 16:49:25,946 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 16:49:25,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:49:25,947 INFO L85 PathProgramCache]: Analyzing trace with hash 8260414, now seen corresponding path program 1 times [2022-03-03 16:49:25,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:49:25,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269201423] [2022-03-03 16:49:25,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:49:25,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:49:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:49:26,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:49:26,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:49:26,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269201423] [2022-03-03 16:49:26,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269201423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:49:26,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:49:26,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 16:49:26,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360290186] [2022-03-03 16:49:26,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:49:26,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 16:49:26,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:49:26,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 16:49:26,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:49:26,843 INFO L87 Difference]: Start difference. First operand 97703 states and 624073 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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) [2022-03-03 16:49:30,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:49:30,753 INFO L93 Difference]: Finished difference Result 195354 states and 1248094 transitions. [2022-03-03 16:49:30,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 16:49:30,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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 124 [2022-03-03 16:49:30,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:49:32,876 INFO L225 Difference]: With dead ends: 195354 [2022-03-03 16:49:32,876 INFO L226 Difference]: Without dead ends: 191343 [2022-03-03 16:49:32,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:49:32,878 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 161 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:49:32,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 510 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:49:33,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191343 states. [2022-03-03 16:49:41,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191343 to 122358. [2022-03-03 16:49:41,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122358 states, 122357 states have (on average 6.363297563686589) internal successors, (778594), 122357 states have internal predecessors, (778594), 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) [2022-03-03 16:49:42,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122358 states to 122358 states and 778594 transitions. [2022-03-03 16:49:42,758 INFO L78 Accepts]: Start accepts. Automaton has 122358 states and 778594 transitions. Word has length 124 [2022-03-03 16:49:42,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:49:42,759 INFO L470 AbstractCegarLoop]: Abstraction has 122358 states and 778594 transitions. [2022-03-03 16:49:42,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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) [2022-03-03 16:49:42,760 INFO L276 IsEmpty]: Start isEmpty. Operand 122358 states and 778594 transitions. [2022-03-03 16:49:43,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-03 16:49:43,677 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:49:43,677 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:49:43,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 16:49:43,677 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 16:49:43,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:49:43,678 INFO L85 PathProgramCache]: Analyzing trace with hash -988465056, now seen corresponding path program 1 times [2022-03-03 16:49:43,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:49:43,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934029352] [2022-03-03 16:49:43,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:49:43,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:49:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:49:44,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:49:44,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:49:44,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934029352] [2022-03-03 16:49:44,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934029352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:49:44,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:49:44,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:49:44,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30354816] [2022-03-03 16:49:44,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:49:44,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:49:44,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:49:44,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:49:44,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:49:44,135 INFO L87 Difference]: Start difference. First operand 122358 states and 778594 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2022-03-03 16:49:47,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:49:47,894 INFO L93 Difference]: Finished difference Result 191343 states and 1204582 transitions. [2022-03-03 16:49:47,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:49:47,894 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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 126 [2022-03-03 16:49:47,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:49:52,344 INFO L225 Difference]: With dead ends: 191343 [2022-03-03 16:49:52,359 INFO L226 Difference]: Without dead ends: 187218 [2022-03-03 16:49:52,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:49:52,368 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 213 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:49:52,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 382 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:49:53,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187218 states. [2022-03-03 16:50:01,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187218 to 141552. [2022-03-03 16:50:01,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141552 states, 141551 states have (on average 6.3017004471886455) internal successors, (892012), 141551 states have internal predecessors, (892012), 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) [2022-03-03 16:50:03,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141552 states to 141552 states and 892012 transitions. [2022-03-03 16:50:03,714 INFO L78 Accepts]: Start accepts. Automaton has 141552 states and 892012 transitions. Word has length 126 [2022-03-03 16:50:03,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:50:03,719 INFO L470 AbstractCegarLoop]: Abstraction has 141552 states and 892012 transitions. [2022-03-03 16:50:03,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2022-03-03 16:50:03,719 INFO L276 IsEmpty]: Start isEmpty. Operand 141552 states and 892012 transitions. [2022-03-03 16:50:04,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-03 16:50:04,389 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:50:04,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:50:04,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 16:50:04,389 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 16:50:04,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:50:04,390 INFO L85 PathProgramCache]: Analyzing trace with hash 673227334, now seen corresponding path program 1 times [2022-03-03 16:50:04,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:50:04,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325372538] [2022-03-03 16:50:04,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:50:04,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:50:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:50:04,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:50:04,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:50:04,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325372538] [2022-03-03 16:50:04,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325372538] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:50:04,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878351781] [2022-03-03 16:50:04,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:50:04,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:50:04,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:50:04,684 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) [2022-03-03 16:50:04,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-03 16:50:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:50:04,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-03 16:50:04,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:50:06,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:50:06,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:50:06,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:50:06,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878351781] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:50:06,422 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:50:06,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-03-03 16:50:06,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41127713] [2022-03-03 16:50:06,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:50:06,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:50:06,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:50:06,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:50:06,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:50:06,424 INFO L87 Difference]: Start difference. First operand 141552 states and 892012 transitions. Second operand has 14 states, 14 states have (on average 17.0) internal successors, (238), 14 states have internal predecessors, (238), 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) [2022-03-03 16:50:13,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:50:13,857 INFO L93 Difference]: Finished difference Result 345512 states and 2189951 transitions. [2022-03-03 16:50:13,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:50:13,862 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.0) internal successors, (238), 14 states have internal predecessors, (238), 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 126 [2022-03-03 16:50:13,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:50:22,523 INFO L225 Difference]: With dead ends: 345512 [2022-03-03 16:50:22,524 INFO L226 Difference]: Without dead ends: 345512 [2022-03-03 16:50:22,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 244 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:50:22,525 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 1384 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 16:50:22,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1384 Valid, 988 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 16:50:23,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345512 states. [2022-03-03 16:50:37,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345512 to 177331. [2022-03-03 16:50:38,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177331 states, 177330 states have (on average 6.343748942649298) internal successors, (1124937), 177330 states have internal predecessors, (1124937), 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) [2022-03-03 16:50:41,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177331 states to 177331 states and 1124937 transitions. [2022-03-03 16:50:41,276 INFO L78 Accepts]: Start accepts. Automaton has 177331 states and 1124937 transitions. Word has length 126 [2022-03-03 16:50:41,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:50:41,277 INFO L470 AbstractCegarLoop]: Abstraction has 177331 states and 1124937 transitions. [2022-03-03 16:50:41,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.0) internal successors, (238), 14 states have internal predecessors, (238), 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) [2022-03-03 16:50:41,278 INFO L276 IsEmpty]: Start isEmpty. Operand 177331 states and 1124937 transitions. [2022-03-03 16:50:43,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-03 16:50:43,136 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:50:43,136 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:50:43,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-03 16:50:43,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:50:43,337 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-03 16:50:43,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:50:43,338 INFO L85 PathProgramCache]: Analyzing trace with hash 846870858, now seen corresponding path program 2 times [2022-03-03 16:50:43,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:50:43,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142152927] [2022-03-03 16:50:43,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:50:43,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:50:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:50:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:50:43,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:50:43,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142152927] [2022-03-03 16:50:43,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142152927] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:50:43,853 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:50:43,853 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 16:50:43,853 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602264240] [2022-03-03 16:50:43,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:50:43,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 16:50:43,854 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:50:43,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 16:50:43,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:50:43,854 INFO L87 Difference]: Start difference. First operand 177331 states and 1124937 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 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) [2022-03-03 16:50:49,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:50:49,094 INFO L93 Difference]: Finished difference Result 222994 states and 1414296 transitions. [2022-03-03 16:50:49,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 16:50:49,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 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 126 [2022-03-03 16:50:49,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:50:53,058 INFO L225 Difference]: With dead ends: 222994 [2022-03-03 16:50:53,060 INFO L226 Difference]: Without dead ends: 222994 [2022-03-03 16:50:53,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:50:53,061 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 226 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:50:53,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 499 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:50:54,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222994 states.