/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:08:35,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:08:35,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:08:35,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 22:08:35,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 22:08:35,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 22:08:35,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 22:08:35,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 22:08:35,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 22:08:35,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 22:08:35,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 22:08:35,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 22:08:35,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 22:08:35,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 22:08:35,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 22:08:35,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 22:08:35,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 22:08:35,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 22:08:35,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 22:08:35,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 22:08:35,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 22:08:35,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 22:08:35,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 22:08:35,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 22:08:35,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-10 22:08:35,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-10 22:08:35,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-10 22:08:35,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-10 22:08:35,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-10 22:08:35,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-10 22:08:35,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 22:08:35,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 22:08:35,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 22:08:35,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 22:08:35,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 22:08:35,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 22:08:35,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 22:08:35,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 22:08:35,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:08:35,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:08:35,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:08:35,646 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-10 22:08:35,668 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:08:35,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:08:35,668 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:08:35,668 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:08:35,669 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:08:35,669 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:08:35,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:08:35,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:08:35,670 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:08:35,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:08:35,670 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:08:35,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:08:35,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:08:35,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:08:35,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:08:35,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:08:35,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:08:35,671 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:08:35,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:08:35,672 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:08:35,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:08:35,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:08:35,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:08:35,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:08:35,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:08:35,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:08:35,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:08:35,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:08:35,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:08:35,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:08:35,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:08:35,673 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:08:35,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:08:35,673 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:08:35,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:08:35,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:08:35,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:08:35,903 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:08:35,904 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:08:35,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c [2022-02-10 22:08:35,953 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f386dd20a/0be1b72d5a2a461e9d6a062a6b91cf6e/FLAG6d73e3724 [2022-02-10 22:08:36,349 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:08:36,350 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c [2022-02-10 22:08:36,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f386dd20a/0be1b72d5a2a461e9d6a062a6b91cf6e/FLAG6d73e3724 [2022-02-10 22:08:36,379 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f386dd20a/0be1b72d5a2a461e9d6a062a6b91cf6e [2022-02-10 22:08:36,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:08:36,385 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:08:36,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:08:36,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:08:36,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:08:36,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:08:36" (1/1) ... [2022-02-10 22:08:36,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40ac8bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:08:36, skipping insertion in model container [2022-02-10 22:08:36,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:08:36" (1/1) ... [2022-02-10 22:08:36,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:08:36,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:08:36,613 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c[1849,1862] [2022-02-10 22:08:36,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:08:36,622 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:08:36,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c[1849,1862] [2022-02-10 22:08:36,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:08:36,650 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:08:36,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:08:36 WrapperNode [2022-02-10 22:08:36,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:08:36,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:08:36,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:08:36,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:08:36,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:08:36" (1/1) ... [2022-02-10 22:08:36,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:08:36" (1/1) ... [2022-02-10 22:08:36,681 INFO L137 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-02-10 22:08:36,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:08:36,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:08:36,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:08:36,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:08:36,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:08:36" (1/1) ... [2022-02-10 22:08:36,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:08:36" (1/1) ... [2022-02-10 22:08:36,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:08:36" (1/1) ... [2022-02-10 22:08:36,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:08:36" (1/1) ... [2022-02-10 22:08:36,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:08:36" (1/1) ... [2022-02-10 22:08:36,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:08:36" (1/1) ... [2022-02-10 22:08:36,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:08:36" (1/1) ... [2022-02-10 22:08:36,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:08:36,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:08:36,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:08:36,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:08:36,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:08:36" (1/1) ... [2022-02-10 22:08:36,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:08:36,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:08:36,731 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 22:08:36,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 22:08:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:08:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 22:08:36,761 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 22:08:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 22:08:36,761 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 22:08:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:08:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:08:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:08:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:08:36,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:08:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:08:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:08:36,764 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 22:08:36,823 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:08:36,824 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:08:36,941 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:08:36,947 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:08:36,948 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-10 22:08:36,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:08:36 BoogieIcfgContainer [2022-02-10 22:08:36,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:08:36,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:08:36,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:08:36,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:08:36,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:08:36" (1/3) ... [2022-02-10 22:08:36,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7458a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:08:36, skipping insertion in model container [2022-02-10 22:08:36,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:08:36" (2/3) ... [2022-02-10 22:08:36,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7458a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:08:36, skipping insertion in model container [2022-02-10 22:08:36,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:08:36" (3/3) ... [2022-02-10 22:08:36,957 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp1x3.wvr.c [2022-02-10 22:08:36,962 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:08:36,963 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:08:36,963 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:08:36,963 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:08:36,995 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:08:36,996 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:08:36,996 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:08:36,996 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:08:36,998 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:08:36,998 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:08:36,999 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:08:36,999 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:08:37,002 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:08:37,002 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:08:37,005 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:08:37,005 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:08:37,010 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 22:08:37,067 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:08:37,073 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 [2022-02-10 22:08:37,073 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-10 22:08:37,105 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 82 places, 81 transitions, 178 flow [2022-02-10 22:08:37,200 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 189 states, 188 states have (on average 2.4468085106382977) internal successors, (460), 188 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:37,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 189 states, 188 states have (on average 2.4468085106382977) internal successors, (460), 188 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:37,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-10 22:08:37,225 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:08:37,226 INFO L515 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] [2022-02-10 22:08:37,227 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:08:37,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:08:37,237 INFO L85 PathProgramCache]: Analyzing trace with hash -2057720554, now seen corresponding path program 1 times [2022-02-10 22:08:37,244 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:08:37,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346541575] [2022-02-10 22:08:37,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:08:37,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:08:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:08:37,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:08:37,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:08:37,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346541575] [2022-02-10 22:08:37,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346541575] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:08:37,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:08:37,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:08:37,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715344086] [2022-02-10 22:08:37,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:08:37,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:08:37,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:08:37,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:08:37,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:08:37,524 INFO L87 Difference]: Start difference. First operand has 189 states, 188 states have (on average 2.4468085106382977) internal successors, (460), 188 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:37,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:08:37,570 INFO L93 Difference]: Finished difference Result 189 states and 409 transitions. [2022-02-10 22:08:37,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:08:37,579 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-02-10 22:08:37,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:08:37,591 INFO L225 Difference]: With dead ends: 189 [2022-02-10 22:08:37,592 INFO L226 Difference]: Without dead ends: 187 [2022-02-10 22:08:37,595 INFO L933 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 [2022-02-10 22:08:37,601 INFO L934 BasicCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:08:37,603 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:08:37,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-02-10 22:08:37,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2022-02-10 22:08:37,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 186 states have (on average 2.1881720430107525) internal successors, (407), 186 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:37,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 407 transitions. [2022-02-10 22:08:37,667 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 407 transitions. Word has length 60 [2022-02-10 22:08:37,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:08:37,668 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 407 transitions. [2022-02-10 22:08:37,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:37,669 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 407 transitions. [2022-02-10 22:08:37,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-10 22:08:37,672 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:08:37,672 INFO L515 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] [2022-02-10 22:08:37,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:08:37,673 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:08:37,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:08:37,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1717286922, now seen corresponding path program 1 times [2022-02-10 22:08:37,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:08:37,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110055685] [2022-02-10 22:08:37,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:08:37,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:08:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:08:37,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:08:37,933 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:08:37,933 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110055685] [2022-02-10 22:08:37,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110055685] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:08:37,933 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:08:37,933 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:08:37,934 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662178048] [2022-02-10 22:08:37,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:08:37,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:08:37,935 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:08:37,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:08:37,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:08:37,936 INFO L87 Difference]: Start difference. First operand 187 states and 407 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:38,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:08:38,070 INFO L93 Difference]: Finished difference Result 338 states and 778 transitions. [2022-02-10 22:08:38,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:08:38,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-02-10 22:08:38,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:08:38,074 INFO L225 Difference]: With dead ends: 338 [2022-02-10 22:08:38,075 INFO L226 Difference]: Without dead ends: 287 [2022-02-10 22:08:38,075 INFO L933 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 [2022-02-10 22:08:38,076 INFO L934 BasicCegarLoop]: 50 mSDtfsCounter, 71 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:08:38,077 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 196 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:08:38,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-02-10 22:08:38,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 242. [2022-02-10 22:08:38,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 241 states have (on average 2.232365145228216) internal successors, (538), 241 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:38,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 538 transitions. [2022-02-10 22:08:38,091 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 538 transitions. Word has length 60 [2022-02-10 22:08:38,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:08:38,092 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 538 transitions. [2022-02-10 22:08:38,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:38,092 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 538 transitions. [2022-02-10 22:08:38,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-02-10 22:08:38,094 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:08:38,094 INFO L515 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] [2022-02-10 22:08:38,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:08:38,095 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:08:38,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:08:38,096 INFO L85 PathProgramCache]: Analyzing trace with hash -470730828, now seen corresponding path program 1 times [2022-02-10 22:08:38,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:08:38,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940891854] [2022-02-10 22:08:38,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:08:38,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:08:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:08:38,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:08:38,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:08:38,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940891854] [2022-02-10 22:08:38,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940891854] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:08:38,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:08:38,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:08:38,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882015707] [2022-02-10 22:08:38,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:08:38,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:08:38,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:08:38,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:08:38,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:08:38,261 INFO L87 Difference]: Start difference. First operand 242 states and 538 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:38,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:08:38,374 INFO L93 Difference]: Finished difference Result 391 states and 890 transitions. [2022-02-10 22:08:38,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:08:38,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-02-10 22:08:38,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:08:38,378 INFO L225 Difference]: With dead ends: 391 [2022-02-10 22:08:38,378 INFO L226 Difference]: Without dead ends: 391 [2022-02-10 22:08:38,378 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:08:38,380 INFO L934 BasicCegarLoop]: 65 mSDtfsCounter, 138 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:08:38,380 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 208 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:08:38,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-02-10 22:08:38,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 250. [2022-02-10 22:08:38,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 2.2650602409638556) internal successors, (564), 249 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:38,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 564 transitions. [2022-02-10 22:08:38,394 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 564 transitions. Word has length 62 [2022-02-10 22:08:38,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:08:38,394 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 564 transitions. [2022-02-10 22:08:38,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:38,395 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 564 transitions. [2022-02-10 22:08:38,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-02-10 22:08:38,397 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:08:38,397 INFO L515 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] [2022-02-10 22:08:38,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 22:08:38,398 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:08:38,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:08:38,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1089155896, now seen corresponding path program 2 times [2022-02-10 22:08:38,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:08:38,399 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563831066] [2022-02-10 22:08:38,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:08:38,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:08:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:08:38,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:08:38,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:08:38,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563831066] [2022-02-10 22:08:38,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563831066] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:08:38,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:08:38,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:08:38,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513136075] [2022-02-10 22:08:38,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:08:38,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:08:38,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:08:38,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:08:38,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:08:38,507 INFO L87 Difference]: Start difference. First operand 250 states and 564 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:38,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:08:38,647 INFO L93 Difference]: Finished difference Result 292 states and 656 transitions. [2022-02-10 22:08:38,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:08:38,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-02-10 22:08:38,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:08:38,649 INFO L225 Difference]: With dead ends: 292 [2022-02-10 22:08:38,649 INFO L226 Difference]: Without dead ends: 259 [2022-02-10 22:08:38,650 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:08:38,652 INFO L934 BasicCegarLoop]: 59 mSDtfsCounter, 86 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:08:38,652 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 229 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:08:38,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-02-10 22:08:38,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 213. [2022-02-10 22:08:38,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 2.2358490566037736) internal successors, (474), 212 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:38,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 474 transitions. [2022-02-10 22:08:38,663 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 474 transitions. Word has length 62 [2022-02-10 22:08:38,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:08:38,664 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 474 transitions. [2022-02-10 22:08:38,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:38,664 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 474 transitions. [2022-02-10 22:08:38,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-02-10 22:08:38,666 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:08:38,666 INFO L515 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] [2022-02-10 22:08:38,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 22:08:38,666 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:08:38,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:08:38,667 INFO L85 PathProgramCache]: Analyzing trace with hash -5947276, now seen corresponding path program 1 times [2022-02-10 22:08:38,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:08:38,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999894214] [2022-02-10 22:08:38,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:08:38,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:08:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:08:38,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:08:38,912 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:08:38,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999894214] [2022-02-10 22:08:38,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999894214] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:08:38,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245907882] [2022-02-10 22:08:38,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:08:38,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:08:38,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:08:38,919 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) [2022-02-10 22:08:38,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 22:08:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:08:38,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-10 22:08:39,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:08:40,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:08:40,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:08:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:08:40,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245907882] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:08:40,865 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:08:40,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2022-02-10 22:08:40,866 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604490356] [2022-02-10 22:08:40,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:08:40,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-10 22:08:40,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:08:40,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-10 22:08:40,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-02-10 22:08:40,867 INFO L87 Difference]: Start difference. First operand 213 states and 474 transitions. Second operand has 13 states, 13 states have (on average 8.153846153846153) internal successors, (106), 13 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:41,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:08:41,143 INFO L93 Difference]: Finished difference Result 419 states and 1001 transitions. [2022-02-10 22:08:41,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 22:08:41,144 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.153846153846153) internal successors, (106), 13 states have internal predecessors, (106), 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 62 [2022-02-10 22:08:41,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:08:41,144 INFO L225 Difference]: With dead ends: 419 [2022-02-10 22:08:41,144 INFO L226 Difference]: Without dead ends: 0 [2022-02-10 22:08:41,145 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:08:41,146 INFO L934 BasicCegarLoop]: 64 mSDtfsCounter, 148 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:08:41,146 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 343 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 29 Unchecked, 0.1s Time] [2022-02-10 22:08:41,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-10 22:08:41,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-10 22:08:41,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:41,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-10 22:08:41,147 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2022-02-10 22:08:41,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:08:41,147 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-10 22:08:41,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.153846153846153) internal successors, (106), 13 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:08:41,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-10 22:08:41,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-10 22:08:41,151 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-10 22:08:41,151 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-10 22:08:41,152 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-10 22:08:41,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-10 22:08:41,368 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 [2022-02-10 22:08:41,372 INFO L733 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-02-10 22:08:41,374 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 22:08:41,374 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 22:08:41,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 10:08:41 BasicIcfg [2022-02-10 22:08:41,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 22:08:41,377 INFO L158 Benchmark]: Toolchain (without parser) took 4991.93ms. Allocated memory was 175.1MB in the beginning and 288.4MB in the end (delta: 113.2MB). Free memory was 118.5MB in the beginning and 155.8MB in the end (delta: -37.2MB). Peak memory consumption was 76.7MB. Max. memory is 8.0GB. [2022-02-10 22:08:41,378 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 175.1MB. Free memory is still 134.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 22:08:41,378 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.86ms. Allocated memory was 175.1MB in the beginning and 229.6MB in the end (delta: 54.5MB). Free memory was 118.3MB in the beginning and 200.0MB in the end (delta: -81.6MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. [2022-02-10 22:08:41,378 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.86ms. Allocated memory is still 229.6MB. Free memory was 200.0MB in the beginning and 198.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 22:08:41,378 INFO L158 Benchmark]: Boogie Preprocessor took 19.13ms. Allocated memory is still 229.6MB. Free memory was 198.5MB in the beginning and 197.4MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 22:08:41,379 INFO L158 Benchmark]: RCFGBuilder took 247.34ms. Allocated memory is still 229.6MB. Free memory was 197.2MB in the beginning and 185.9MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-10 22:08:41,379 INFO L158 Benchmark]: TraceAbstraction took 4425.44ms. Allocated memory was 229.6MB in the beginning and 288.4MB in the end (delta: 58.7MB). Free memory was 185.3MB in the beginning and 155.8MB in the end (delta: 29.5MB). Peak memory consumption was 87.9MB. Max. memory is 8.0GB. [2022-02-10 22:08:41,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 175.1MB. Free memory is still 134.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 263.86ms. Allocated memory was 175.1MB in the beginning and 229.6MB in the end (delta: 54.5MB). Free memory was 118.3MB in the beginning and 200.0MB in the end (delta: -81.6MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.86ms. Allocated memory is still 229.6MB. Free memory was 200.0MB in the beginning and 198.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.13ms. Allocated memory is still 229.6MB. Free memory was 198.5MB in the beginning and 197.4MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 247.34ms. Allocated memory is still 229.6MB. Free memory was 197.2MB in the beginning and 185.9MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 4425.44ms. Allocated memory was 229.6MB in the beginning and 288.4MB in the end (delta: 58.7MB). Free memory was 185.3MB in the beginning and 155.8MB in the end (delta: 29.5MB). Peak memory consumption was 87.9MB. Max. memory is 8.0GB. * 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 - PositiveResult [Line: 70]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 88 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 443 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 443 mSDsluCounter, 1038 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 29 IncrementalHoareTripleChecker+Unchecked, 788 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 324 IncrementalHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 300 mSDtfsCounter, 324 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 127 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=3, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 232 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 368 NumberOfCodeBlocks, 368 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 423 ConstructedInterpolants, 11 QuantifiedInterpolants, 3164 SizeOfPredicates, 8 NumberOfNonLiveVariables, 143 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 2/5 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-10 22:08:41,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...