/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 10:46:10,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 10:46:10,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 10:46:10,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 10:46:10,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 10:46:10,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 10:46:10,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 10:46:10,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 10:46:10,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 10:46:10,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 10:46:10,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 10:46:10,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 10:46:10,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 10:46:10,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 10:46:10,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 10:46:10,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 10:46:10,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 10:46:10,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 10:46:10,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 10:46:10,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 10:46:10,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 10:46:10,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 10:46:10,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 10:46:10,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 10:46:10,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 10:46:10,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 10:46:10,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 10:46:10,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 10:46:10,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 10:46:10,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 10:46:10,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 10:46:10,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 10:46:10,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 10:46:10,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 10:46:10,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 10:46:10,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 10:46:10,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 10:46:10,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 10:46:10,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 10:46:10,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 10:46:10,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 10:46:10,653 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-Separate.epf [2022-01-18 10:46:10,678 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 10:46:10,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 10:46:10,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 10:46:10,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 10:46:10,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 10:46:10,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 10:46:10,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 10:46:10,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 10:46:10,680 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 10:46:10,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 10:46:10,680 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 10:46:10,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 10:46:10,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 10:46:10,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 10:46:10,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 10:46:10,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 10:46:10,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 10:46:10,681 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 10:46:10,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 10:46:10,681 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 10:46:10,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 10:46:10,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 10:46:10,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 10:46:10,681 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 10:46:10,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 10:46:10,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 10:46:10,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 10:46:10,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 10:46:10,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 10:46:10,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 10:46:10,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 10:46:10,683 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 10:46:10,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 10:46:10,684 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 10:46:10,684 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 10:46:10,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 10:46:10,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 10:46:10,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 10:46:10,839 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 10:46:10,840 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 10:46:10,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2022-01-18 10:46:10,887 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6389b58f5/03f0567577e34ce79444abb5cd8c0dcc/FLAGce1c25870 [2022-01-18 10:46:11,196 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 10:46:11,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2022-01-18 10:46:11,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6389b58f5/03f0567577e34ce79444abb5cd8c0dcc/FLAGce1c25870 [2022-01-18 10:46:11,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6389b58f5/03f0567577e34ce79444abb5cd8c0dcc [2022-01-18 10:46:11,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 10:46:11,642 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 10:46:11,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 10:46:11,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 10:46:11,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 10:46:11,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:46:11" (1/1) ... [2022-01-18 10:46:11,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e84c86d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:11, skipping insertion in model container [2022-01-18 10:46:11,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:46:11" (1/1) ... [2022-01-18 10:46:11,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 10:46:11,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 10:46:11,814 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-exp2x4.wvr.c[2309,2322] [2022-01-18 10:46:11,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 10:46:11,820 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 10:46:11,832 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-exp2x4.wvr.c[2309,2322] [2022-01-18 10:46:11,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 10:46:11,841 INFO L208 MainTranslator]: Completed translation [2022-01-18 10:46:11,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:11 WrapperNode [2022-01-18 10:46:11,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 10:46:11,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 10:46:11,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 10:46:11,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 10:46:11,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:11" (1/1) ... [2022-01-18 10:46:11,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:11" (1/1) ... [2022-01-18 10:46:11,862 INFO L137 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-01-18 10:46:11,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 10:46:11,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 10:46:11,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 10:46:11,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 10:46:11,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:11" (1/1) ... [2022-01-18 10:46:11,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:11" (1/1) ... [2022-01-18 10:46:11,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:11" (1/1) ... [2022-01-18 10:46:11,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:11" (1/1) ... [2022-01-18 10:46:11,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:11" (1/1) ... [2022-01-18 10:46:11,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:11" (1/1) ... [2022-01-18 10:46:11,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:11" (1/1) ... [2022-01-18 10:46:11,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 10:46:11,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 10:46:11,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 10:46:11,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 10:46:11,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:11" (1/1) ... [2022-01-18 10:46:11,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 10:46:11,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:46:11,927 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) [2022-01-18 10:46:11,939 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 [2022-01-18 10:46:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 10:46:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 10:46:11,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 10:46:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 10:46:11,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 10:46:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 10:46:11,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 10:46:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 10:46:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 10:46:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 10:46:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 10:46:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 10:46:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 10:46:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 10:46:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 10:46:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 10:46:11,958 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 10:46:12,034 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 10:46:12,035 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 10:46:12,291 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 10:46:12,296 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 10:46:12,296 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-18 10:46:12,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:46:12 BoogieIcfgContainer [2022-01-18 10:46:12,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 10:46:12,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 10:46:12,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 10:46:12,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 10:46:12,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 10:46:11" (1/3) ... [2022-01-18 10:46:12,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f66f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:46:12, skipping insertion in model container [2022-01-18 10:46:12,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:11" (2/3) ... [2022-01-18 10:46:12,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f66f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:46:12, skipping insertion in model container [2022-01-18 10:46:12,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:46:12" (3/3) ... [2022-01-18 10:46:12,303 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp2x4.wvr.c [2022-01-18 10:46:12,306 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 10:46:12,306 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 10:46:12,306 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 10:46:12,306 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 10:46:12,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,348 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,348 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,348 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,348 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,349 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,349 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,350 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,350 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,351 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,351 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,351 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,351 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,355 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,355 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,356 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,356 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,363 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,363 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:12,367 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 10:46:12,401 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 10:46:12,406 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, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 10:46:12,406 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 10:46:12,414 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 132 places, 129 transitions, 290 flow [2022-01-18 10:46:12,671 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7558 states, 7557 states have (on average 5.038904327113934) internal successors, (38079), 7557 states have internal predecessors, (38079), 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) [2022-01-18 10:46:12,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 7558 states, 7557 states have (on average 5.038904327113934) internal successors, (38079), 7557 states have internal predecessors, (38079), 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) [2022-01-18 10:46:12,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-18 10:46:12,758 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:12,759 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] [2022-01-18 10:46:12,759 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)] === [2022-01-18 10:46:12,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:12,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1010931886, now seen corresponding path program 1 times [2022-01-18 10:46:12,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:12,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156305869] [2022-01-18 10:46:12,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:12,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:12,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:12,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:12,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156305869] [2022-01-18 10:46:12,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156305869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:46:12,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:46:12,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 10:46:12,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446500212] [2022-01-18 10:46:12,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:46:12,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 10:46:12,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:12,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 10:46:12,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 10:46:13,009 INFO L87 Difference]: Start difference. First operand has 7558 states, 7557 states have (on average 5.038904327113934) internal successors, (38079), 7557 states have internal predecessors, (38079), 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 46.0) internal successors, (92), 2 states have internal predecessors, (92), 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) [2022-01-18 10:46:13,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:13,151 INFO L93 Difference]: Finished difference Result 7558 states and 33532 transitions. [2022-01-18 10:46:13,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 10:46:13,153 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 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 92 [2022-01-18 10:46:13,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:13,218 INFO L225 Difference]: With dead ends: 7558 [2022-01-18 10:46:13,218 INFO L226 Difference]: Without dead ends: 7556 [2022-01-18 10:46:13,219 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 [2022-01-18 10:46:13,222 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:13,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:46:13,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7556 states. [2022-01-18 10:46:13,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7556 to 7556. [2022-01-18 10:46:13,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7556 states, 7555 states have (on average 4.43812045003309) internal successors, (33530), 7555 states have internal predecessors, (33530), 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) [2022-01-18 10:46:13,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7556 states to 7556 states and 33530 transitions. [2022-01-18 10:46:13,730 INFO L78 Accepts]: Start accepts. Automaton has 7556 states and 33530 transitions. Word has length 92 [2022-01-18 10:46:13,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:13,730 INFO L470 AbstractCegarLoop]: Abstraction has 7556 states and 33530 transitions. [2022-01-18 10:46:13,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 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) [2022-01-18 10:46:13,731 INFO L276 IsEmpty]: Start isEmpty. Operand 7556 states and 33530 transitions. [2022-01-18 10:46:13,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-18 10:46:13,752 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:13,752 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] [2022-01-18 10:46:13,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 10:46:13,753 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)] === [2022-01-18 10:46:13,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:13,755 INFO L85 PathProgramCache]: Analyzing trace with hash 249249086, now seen corresponding path program 1 times [2022-01-18 10:46:13,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:13,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794321859] [2022-01-18 10:46:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:13,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:14,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:14,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794321859] [2022-01-18 10:46:14,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794321859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:46:14,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:46:14,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 10:46:14,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866263056] [2022-01-18 10:46:14,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:46:14,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 10:46:14,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:14,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 10:46:14,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 10:46:14,106 INFO L87 Difference]: Start difference. First operand 7556 states and 33530 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-01-18 10:46:14,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:14,483 INFO L93 Difference]: Finished difference Result 11457 states and 50676 transitions. [2022-01-18 10:46:14,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 10:46:14,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 92 [2022-01-18 10:46:14,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:14,562 INFO L225 Difference]: With dead ends: 11457 [2022-01-18 10:46:14,562 INFO L226 Difference]: Without dead ends: 11010 [2022-01-18 10:46:14,563 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 [2022-01-18 10:46:14,564 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 111 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:14,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 382 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 10:46:14,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-01-18 10:46:14,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8895. [2022-01-18 10:46:14,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8895 states, 8894 states have (on average 4.411963121205307) internal successors, (39240), 8894 states have internal predecessors, (39240), 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) [2022-01-18 10:46:14,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8895 states to 8895 states and 39240 transitions. [2022-01-18 10:46:14,948 INFO L78 Accepts]: Start accepts. Automaton has 8895 states and 39240 transitions. Word has length 92 [2022-01-18 10:46:14,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:14,951 INFO L470 AbstractCegarLoop]: Abstraction has 8895 states and 39240 transitions. [2022-01-18 10:46:14,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-01-18 10:46:14,952 INFO L276 IsEmpty]: Start isEmpty. Operand 8895 states and 39240 transitions. [2022-01-18 10:46:14,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-18 10:46:14,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:14,976 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] [2022-01-18 10:46:14,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 10:46:14,977 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)] === [2022-01-18 10:46:14,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:14,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1729481647, now seen corresponding path program 1 times [2022-01-18 10:46:14,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:14,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167098820] [2022-01-18 10:46:14,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:14,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:15,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:15,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:15,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167098820] [2022-01-18 10:46:15,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167098820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:46:15,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:46:15,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:46:15,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975456451] [2022-01-18 10:46:15,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:46:15,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:46:15,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:15,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:46:15,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:46:15,178 INFO L87 Difference]: Start difference. First operand 8895 states and 39240 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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) [2022-01-18 10:46:15,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:15,491 INFO L93 Difference]: Finished difference Result 11010 states and 47997 transitions. [2022-01-18 10:46:15,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:46:15,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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 95 [2022-01-18 10:46:15,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:15,531 INFO L225 Difference]: With dead ends: 11010 [2022-01-18 10:46:15,531 INFO L226 Difference]: Without dead ends: 10557 [2022-01-18 10:46:15,531 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 [2022-01-18 10:46:15,532 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 91 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:15,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 350 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 10:46:15,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2022-01-18 10:46:15,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 8991. [2022-01-18 10:46:15,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8991 states, 8990 states have (on average 4.385205784204672) internal successors, (39423), 8990 states have internal predecessors, (39423), 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) [2022-01-18 10:46:15,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8991 states to 8991 states and 39423 transitions. [2022-01-18 10:46:15,829 INFO L78 Accepts]: Start accepts. Automaton has 8991 states and 39423 transitions. Word has length 95 [2022-01-18 10:46:15,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:15,829 INFO L470 AbstractCegarLoop]: Abstraction has 8991 states and 39423 transitions. [2022-01-18 10:46:15,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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) [2022-01-18 10:46:15,830 INFO L276 IsEmpty]: Start isEmpty. Operand 8991 states and 39423 transitions. [2022-01-18 10:46:15,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-18 10:46:15,860 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:15,860 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] [2022-01-18 10:46:15,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 10:46:15,861 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)] === [2022-01-18 10:46:15,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:15,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1518612705, now seen corresponding path program 1 times [2022-01-18 10:46:15,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:15,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856121254] [2022-01-18 10:46:15,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:15,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:16,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:16,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:16,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856121254] [2022-01-18 10:46:16,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856121254] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:46:16,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:46:16,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:46:16,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175439629] [2022-01-18 10:46:16,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:46:16,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:46:16,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:16,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:46:16,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:46:16,076 INFO L87 Difference]: Start difference. First operand 8991 states and 39423 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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) [2022-01-18 10:46:16,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:16,288 INFO L93 Difference]: Finished difference Result 10557 states and 45447 transitions. [2022-01-18 10:46:16,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:46:16,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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 95 [2022-01-18 10:46:16,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:16,401 INFO L225 Difference]: With dead ends: 10557 [2022-01-18 10:46:16,402 INFO L226 Difference]: Without dead ends: 10044 [2022-01-18 10:46:16,402 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 [2022-01-18 10:46:16,403 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 128 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:16,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 253 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 10:46:16,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10044 states. [2022-01-18 10:46:16,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10044 to 8799. [2022-01-18 10:46:16,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8799 states, 8798 states have (on average 4.391566265060241) internal successors, (38637), 8798 states have internal predecessors, (38637), 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) [2022-01-18 10:46:16,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8799 states to 8799 states and 38637 transitions. [2022-01-18 10:46:16,750 INFO L78 Accepts]: Start accepts. Automaton has 8799 states and 38637 transitions. Word has length 95 [2022-01-18 10:46:16,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:16,750 INFO L470 AbstractCegarLoop]: Abstraction has 8799 states and 38637 transitions. [2022-01-18 10:46:16,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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) [2022-01-18 10:46:16,751 INFO L276 IsEmpty]: Start isEmpty. Operand 8799 states and 38637 transitions. [2022-01-18 10:46:16,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-18 10:46:16,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:16,777 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] [2022-01-18 10:46:16,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 10:46:16,777 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)] === [2022-01-18 10:46:16,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:16,778 INFO L85 PathProgramCache]: Analyzing trace with hash -444560868, now seen corresponding path program 1 times [2022-01-18 10:46:16,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:16,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834988] [2022-01-18 10:46:16,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:16,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:16,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:16,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:16,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834988] [2022-01-18 10:46:16,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834988] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:46:16,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648571030] [2022-01-18 10:46:16,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:16,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:46:16,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:46:16,964 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) [2022-01-18 10:46:17,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 10:46:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:17,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-18 10:46:17,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 10:46:17,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:17,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 10:46:17,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:17,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648571030] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 10:46:17,768 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 10:46:17,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-01-18 10:46:17,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168082708] [2022-01-18 10:46:17,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 10:46:17,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 10:46:17,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:17,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 10:46:17,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-01-18 10:46:17,770 INFO L87 Difference]: Start difference. First operand 8799 states and 38637 transitions. Second operand has 14 states, 14 states have (on average 11.5) internal successors, (161), 14 states have internal predecessors, (161), 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) [2022-01-18 10:46:18,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:18,493 INFO L93 Difference]: Finished difference Result 20034 states and 87978 transitions. [2022-01-18 10:46:18,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 10:46:18,494 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.5) internal successors, (161), 14 states have internal predecessors, (161), 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 95 [2022-01-18 10:46:18,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:18,568 INFO L225 Difference]: With dead ends: 20034 [2022-01-18 10:46:18,569 INFO L226 Difference]: Without dead ends: 20034 [2022-01-18 10:46:18,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-01-18 10:46:18,571 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 719 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:18,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [719 Valid, 857 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:46:18,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20034 states. [2022-01-18 10:46:18,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20034 to 10800. [2022-01-18 10:46:19,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10800 states, 10799 states have (on average 4.415131030650986) internal successors, (47679), 10799 states have internal predecessors, (47679), 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) [2022-01-18 10:46:19,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10800 states to 10800 states and 47679 transitions. [2022-01-18 10:46:19,043 INFO L78 Accepts]: Start accepts. Automaton has 10800 states and 47679 transitions. Word has length 95 [2022-01-18 10:46:19,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:19,043 INFO L470 AbstractCegarLoop]: Abstraction has 10800 states and 47679 transitions. [2022-01-18 10:46:19,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.5) internal successors, (161), 14 states have internal predecessors, (161), 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) [2022-01-18 10:46:19,044 INFO L276 IsEmpty]: Start isEmpty. Operand 10800 states and 47679 transitions. [2022-01-18 10:46:19,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-18 10:46:19,070 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:19,070 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] [2022-01-18 10:46:19,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-18 10:46:19,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:46:19,271 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 10:46:19,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:19,271 INFO L85 PathProgramCache]: Analyzing trace with hash 823248679, now seen corresponding path program 2 times [2022-01-18 10:46:19,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:19,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308305170] [2022-01-18 10:46:19,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:19,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:19,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:19,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:19,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308305170] [2022-01-18 10:46:19,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308305170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:46:19,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:46:19,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 10:46:19,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293068614] [2022-01-18 10:46:19,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:46:19,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 10:46:19,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:19,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 10:46:19,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-18 10:46:19,515 INFO L87 Difference]: Start difference. First operand 10800 states and 47679 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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) [2022-01-18 10:46:19,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:19,764 INFO L93 Difference]: Finished difference Result 12675 states and 55959 transitions. [2022-01-18 10:46:19,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 10:46:19,765 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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 95 [2022-01-18 10:46:19,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:19,807 INFO L225 Difference]: With dead ends: 12675 [2022-01-18 10:46:19,808 INFO L226 Difference]: Without dead ends: 12675 [2022-01-18 10:46:19,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 10:46:19,810 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 134 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:19,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 452 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 10:46:19,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12675 states. [2022-01-18 10:46:20,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12675 to 11790. [2022-01-18 10:46:20,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11790 states, 11789 states have (on average 4.433709390109424) internal successors, (52269), 11789 states have internal predecessors, (52269), 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) [2022-01-18 10:46:20,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11790 states to 11790 states and 52269 transitions. [2022-01-18 10:46:20,152 INFO L78 Accepts]: Start accepts. Automaton has 11790 states and 52269 transitions. Word has length 95 [2022-01-18 10:46:20,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:20,152 INFO L470 AbstractCegarLoop]: Abstraction has 11790 states and 52269 transitions. [2022-01-18 10:46:20,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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) [2022-01-18 10:46:20,152 INFO L276 IsEmpty]: Start isEmpty. Operand 11790 states and 52269 transitions. [2022-01-18 10:46:20,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-18 10:46:20,181 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:20,181 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] [2022-01-18 10:46:20,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 10:46:20,181 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 10:46:20,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:20,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1562291266, now seen corresponding path program 1 times [2022-01-18 10:46:20,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:20,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562468872] [2022-01-18 10:46:20,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:20,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:20,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:20,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:20,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562468872] [2022-01-18 10:46:20,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562468872] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:46:20,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131095162] [2022-01-18 10:46:20,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:20,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:46:20,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:46:20,352 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) [2022-01-18 10:46:20,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 10:46:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:20,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-18 10:46:20,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 10:46:20,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:20,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 10:46:20,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:20,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131095162] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 10:46:20,894 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 10:46:20,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-01-18 10:46:20,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346210560] [2022-01-18 10:46:20,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 10:46:20,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 10:46:20,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:20,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 10:46:20,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-01-18 10:46:20,895 INFO L87 Difference]: Start difference. First operand 11790 states and 52269 transitions. Second operand has 14 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 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) [2022-01-18 10:46:21,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:21,691 INFO L93 Difference]: Finished difference Result 27525 states and 120940 transitions. [2022-01-18 10:46:21,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 10:46:21,691 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 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 95 [2022-01-18 10:46:21,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:21,787 INFO L225 Difference]: With dead ends: 27525 [2022-01-18 10:46:21,788 INFO L226 Difference]: Without dead ends: 27525 [2022-01-18 10:46:21,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-01-18 10:46:21,788 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 701 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:21,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [701 Valid, 1011 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:46:21,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27525 states. [2022-01-18 10:46:22,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27525 to 13623. [2022-01-18 10:46:22,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13623 states, 13622 states have (on average 4.490750256937307) internal successors, (61173), 13622 states have internal predecessors, (61173), 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) [2022-01-18 10:46:22,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13623 states to 13623 states and 61173 transitions. [2022-01-18 10:46:22,275 INFO L78 Accepts]: Start accepts. Automaton has 13623 states and 61173 transitions. Word has length 95 [2022-01-18 10:46:22,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:22,276 INFO L470 AbstractCegarLoop]: Abstraction has 13623 states and 61173 transitions. [2022-01-18 10:46:22,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 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) [2022-01-18 10:46:22,276 INFO L276 IsEmpty]: Start isEmpty. Operand 13623 states and 61173 transitions. [2022-01-18 10:46:22,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-18 10:46:22,310 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:22,310 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] [2022-01-18 10:46:22,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 10:46:22,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-01-18 10:46:22,512 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 10:46:22,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:22,512 INFO L85 PathProgramCache]: Analyzing trace with hash -277204909, now seen corresponding path program 2 times [2022-01-18 10:46:22,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:22,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037692069] [2022-01-18 10:46:22,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:22,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:22,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:22,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:22,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037692069] [2022-01-18 10:46:22,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037692069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:46:22,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:46:22,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 10:46:22,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748772546] [2022-01-18 10:46:22,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:46:22,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 10:46:22,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:22,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 10:46:22,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-18 10:46:22,675 INFO L87 Difference]: Start difference. First operand 13623 states and 61173 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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) [2022-01-18 10:46:22,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:22,934 INFO L93 Difference]: Finished difference Result 15807 states and 70956 transitions. [2022-01-18 10:46:22,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 10:46:22,934 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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 95 [2022-01-18 10:46:22,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:22,994 INFO L225 Difference]: With dead ends: 15807 [2022-01-18 10:46:22,994 INFO L226 Difference]: Without dead ends: 15807 [2022-01-18 10:46:22,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 10:46:22,994 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 190 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:22,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 384 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 10:46:23,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15807 states. [2022-01-18 10:46:23,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15807 to 15219. [2022-01-18 10:46:23,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15219 states, 15218 states have (on average 4.499211460113024) internal successors, (68469), 15218 states have internal predecessors, (68469), 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) [2022-01-18 10:46:23,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15219 states to 15219 states and 68469 transitions. [2022-01-18 10:46:23,417 INFO L78 Accepts]: Start accepts. Automaton has 15219 states and 68469 transitions. Word has length 95 [2022-01-18 10:46:23,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:23,418 INFO L470 AbstractCegarLoop]: Abstraction has 15219 states and 68469 transitions. [2022-01-18 10:46:23,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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) [2022-01-18 10:46:23,418 INFO L276 IsEmpty]: Start isEmpty. Operand 15219 states and 68469 transitions. [2022-01-18 10:46:23,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 10:46:23,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:23,455 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] [2022-01-18 10:46:23,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 10:46:23,455 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 10:46:23,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:23,456 INFO L85 PathProgramCache]: Analyzing trace with hash -180229615, now seen corresponding path program 1 times [2022-01-18 10:46:23,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:23,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375677667] [2022-01-18 10:46:23,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:23,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:24,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:24,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:24,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375677667] [2022-01-18 10:46:24,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375677667] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:46:24,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468698340] [2022-01-18 10:46:24,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:24,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:46:24,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:46:24,248 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 10:46:24,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 10:46:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:24,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 23 conjunts are in the unsatisfiable core [2022-01-18 10:46:24,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-01-18 11:00:49,366 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 [2022-01-18 11:00:49,367 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 11:00:50,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-18 11:00:50,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2022-01-18 11:00:51,227 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-18 11:00:51,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 11:00:51,227 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 99 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2022-01-18 11:00:51,228 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-18 11:00:51,228 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-18 11:00:51,228 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-18 11:00:51,228 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-18 11:00:51,230 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2022-01-18 11:00:51,232 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 11:00:51,232 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 11:00:51,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:00:51 BasicIcfg [2022-01-18 11:00:51,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 11:00:51,233 INFO L158 Benchmark]: Toolchain (without parser) took 879591.10ms. Allocated memory was 348.1MB in the beginning and 5.9GB in the end (delta: 5.5GB). Free memory was 293.7MB in the beginning and 5.1GB in the end (delta: -4.8GB). Peak memory consumption was 4.2GB. Max. memory is 16.0GB. [2022-01-18 11:00:51,234 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 348.1MB. Free memory was 310.0MB in the beginning and 309.9MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 11:00:51,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.40ms. Allocated memory was 348.1MB in the beginning and 434.1MB in the end (delta: 86.0MB). Free memory was 293.5MB in the beginning and 407.5MB in the end (delta: -114.1MB). Peak memory consumption was 8.8MB. Max. memory is 16.0GB. [2022-01-18 11:00:51,234 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.10ms. Allocated memory is still 434.1MB. Free memory was 407.5MB in the beginning and 405.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:00:51,234 INFO L158 Benchmark]: Boogie Preprocessor took 29.36ms. Allocated memory is still 434.1MB. Free memory was 405.4MB in the beginning and 404.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:00:51,234 INFO L158 Benchmark]: RCFGBuilder took 405.30ms. Allocated memory is still 434.1MB. Free memory was 404.4MB in the beginning and 387.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2022-01-18 11:00:51,235 INFO L158 Benchmark]: TraceAbstraction took 878934.41ms. Allocated memory was 434.1MB in the beginning and 5.9GB in the end (delta: 5.5GB). Free memory was 386.6MB in the beginning and 5.1GB in the end (delta: -4.7GB). Peak memory consumption was 4.2GB. Max. memory is 16.0GB. [2022-01-18 11:00:51,235 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 348.1MB. Free memory was 310.0MB in the beginning and 309.9MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 198.40ms. Allocated memory was 348.1MB in the beginning and 434.1MB in the end (delta: 86.0MB). Free memory was 293.5MB in the beginning and 407.5MB in the end (delta: -114.1MB). Peak memory consumption was 8.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 20.10ms. Allocated memory is still 434.1MB. Free memory was 407.5MB in the beginning and 405.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.36ms. Allocated memory is still 434.1MB. Free memory was 405.4MB in the beginning and 404.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 405.30ms. Allocated memory is still 434.1MB. Free memory was 404.4MB in the beginning and 387.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 878934.41ms. Allocated memory was 434.1MB in the beginning and 5.9GB in the end (delta: 5.5GB). Free memory was 386.6MB in the beginning and 5.1GB in the end (delta: -4.7GB). Peak memory consumption was 4.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 99 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 99 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 99 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 99 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 99 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 148 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 878.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2074 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2074 mSDsluCounter, 3787 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3313 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1710 IncrementalHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 844 mSDtfsCounter, 1710 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 450 GetRequests, 376 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15219occurred in iteration=8, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 29535 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 944 NumberOfCodeBlocks, 944 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1122 ConstructedInterpolants, 0 QuantifiedInterpolants, 14054 SizeOfPredicates, 20 NumberOfNonLiveVariables, 506 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 4/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown