/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/test-easy6.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 23:14:15,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 23:14:15,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 23:14:15,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 23:14:15,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 23:14:15,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 23:14:15,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 23:14:15,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 23:14:15,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 23:14:15,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 23:14:15,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 23:14:15,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 23:14:15,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 23:14:15,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 23:14:15,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 23:14:15,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 23:14:15,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 23:14:15,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 23:14:15,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 23:14:15,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 23:14:15,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 23:14:15,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 23:14:15,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 23:14:15,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 23:14:15,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 23:14:15,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 23:14:15,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 23:14:15,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 23:14:15,939 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 23:14:15,965 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 23:14:15,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 23:14:15,965 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 23:14:15,966 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 23:14:15,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 23:14:15,966 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 23:14:15,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 23:14:15,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 23:14:15,967 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 23:14:15,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 23:14:15,967 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 23:14:15,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 23:14:15,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 23:14:15,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 23:14:15,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 23:14:15,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 23:14:15,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 23:14:15,968 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 23:14:15,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 23:14:15,968 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 23:14:15,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 23:14:15,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 23:14:15,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 23:14:15,968 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 23:14:15,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 23:14:15,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:14:15,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 23:14:15,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 23:14:15,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 23:14:15,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 23:14:15,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 23:14:15,970 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 23:14:15,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 23:14:15,970 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 23:14:16,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 23:14:16,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 23:14:16,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 23:14:16,181 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 23:14:16,182 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 23:14:16,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy6.wvr.c [2022-02-10 23:14:16,236 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/578404297/117c3d0edb4f448c814a5043efe5096f/FLAG16281dff4 [2022-02-10 23:14:16,553 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 23:14:16,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c [2022-02-10 23:14:16,560 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/578404297/117c3d0edb4f448c814a5043efe5096f/FLAG16281dff4 [2022-02-10 23:14:16,977 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/578404297/117c3d0edb4f448c814a5043efe5096f [2022-02-10 23:14:16,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 23:14:16,980 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 23:14:16,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 23:14:16,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 23:14:16,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 23:14:16,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:14:16" (1/1) ... [2022-02-10 23:14:16,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32d55a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:14:16, skipping insertion in model container [2022-02-10 23:14:16,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:14:16" (1/1) ... [2022-02-10 23:14:16,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 23:14:17,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 23:14:17,193 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/test-easy6.wvr.c[3046,3059] [2022-02-10 23:14:17,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:14:17,202 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 23:14:17,232 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/test-easy6.wvr.c[3046,3059] [2022-02-10 23:14:17,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:14:17,241 INFO L208 MainTranslator]: Completed translation [2022-02-10 23:14:17,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:14:17 WrapperNode [2022-02-10 23:14:17,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 23:14:17,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 23:14:17,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 23:14:17,243 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 23:14:17,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:14:17" (1/1) ... [2022-02-10 23:14:17,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:14:17" (1/1) ... [2022-02-10 23:14:17,279 INFO L137 Inliner]: procedures = 21, calls = 59, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 123 [2022-02-10 23:14:17,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 23:14:17,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 23:14:17,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 23:14:17,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 23:14:17,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:14:17" (1/1) ... [2022-02-10 23:14:17,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:14:17" (1/1) ... [2022-02-10 23:14:17,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:14:17" (1/1) ... [2022-02-10 23:14:17,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:14:17" (1/1) ... [2022-02-10 23:14:17,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:14:17" (1/1) ... [2022-02-10 23:14:17,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:14:17" (1/1) ... [2022-02-10 23:14:17,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:14:17" (1/1) ... [2022-02-10 23:14:17,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 23:14:17,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 23:14:17,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 23:14:17,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 23:14:17,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:14:17" (1/1) ... [2022-02-10 23:14:17,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:14:17,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:14:17,338 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 23:14:17,355 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 23:14:17,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 23:14:17,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 23:14:17,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 23:14:17,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 23:14:17,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 23:14:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 23:14:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 23:14:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 23:14:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 23:14:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 23:14:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 23:14:17,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 23:14:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 23:14:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 23:14:17,373 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 23:14:17,445 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 23:14:17,446 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 23:14:17,652 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 23:14:17,679 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 23:14:17,679 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-10 23:14:17,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:14:17 BoogieIcfgContainer [2022-02-10 23:14:17,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 23:14:17,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 23:14:17,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 23:14:17,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 23:14:17,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 11:14:16" (1/3) ... [2022-02-10 23:14:17,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6901fc8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:14:17, skipping insertion in model container [2022-02-10 23:14:17,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:14:17" (2/3) ... [2022-02-10 23:14:17,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6901fc8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:14:17, skipping insertion in model container [2022-02-10 23:14:17,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:14:17" (3/3) ... [2022-02-10 23:14:17,692 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy6.wvr.c [2022-02-10 23:14:17,697 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 23:14:17,697 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 23:14:17,697 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 23:14:17,697 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 23:14:17,733 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,734 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,735 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,735 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,736 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,736 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,737 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,737 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,738 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,738 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,739 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,739 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,739 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,739 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,740 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,740 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,741 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,741 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,741 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,741 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,741 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,742 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,742 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,742 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,745 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,745 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,745 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,745 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,745 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,746 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,746 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,747 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:14:17,750 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 23:14:17,778 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:14:17,782 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 23:14:17,783 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-10 23:14:17,790 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 83 transitions, 182 flow [2022-02-10 23:14:17,853 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 721 states, 720 states have (on average 2.4069444444444446) internal successors, (1733), 720 states have internal predecessors, (1733), 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 23:14:17,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 721 states, 720 states have (on average 2.4069444444444446) internal successors, (1733), 720 states have internal predecessors, (1733), 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 23:14:17,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-10 23:14:17,868 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:14:17,870 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:14:17,871 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 23:14:17,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:14:17,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1299034247, now seen corresponding path program 1 times [2022-02-10 23:14:17,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:14:17,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473894561] [2022-02-10 23:14:17,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:14:17,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:14:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:14:18,305 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 23:14:18,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:14:18,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473894561] [2022-02-10 23:14:18,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473894561] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:14:18,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:14:18,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-10 23:14:18,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304172554] [2022-02-10 23:14:18,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:14:18,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 23:14:18,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:14:18,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 23:14:18,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-02-10 23:14:18,338 INFO L87 Difference]: Start difference. First operand has 721 states, 720 states have (on average 2.4069444444444446) internal successors, (1733), 720 states have internal predecessors, (1733), 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 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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 23:14:18,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:14:18,602 INFO L93 Difference]: Finished difference Result 1011 states and 2340 transitions. [2022-02-10 23:14:18,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 23:14:18,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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 70 [2022-02-10 23:14:18,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:14:18,645 INFO L225 Difference]: With dead ends: 1011 [2022-02-10 23:14:18,645 INFO L226 Difference]: Without dead ends: 749 [2022-02-10 23:14:18,646 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-02-10 23:14:18,649 INFO L934 BasicCegarLoop]: 96 mSDtfsCounter, 183 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 23:14:18,649 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 600 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 23:14:18,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2022-02-10 23:14:18,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 563. [2022-02-10 23:14:18,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 562 states have (on average 2.3718861209964412) internal successors, (1333), 562 states have internal predecessors, (1333), 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 23:14:18,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 1333 transitions. [2022-02-10 23:14:18,707 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 1333 transitions. Word has length 70 [2022-02-10 23:14:18,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:14:18,708 INFO L470 AbstractCegarLoop]: Abstraction has 563 states and 1333 transitions. [2022-02-10 23:14:18,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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 23:14:18,708 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 1333 transitions. [2022-02-10 23:14:18,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-10 23:14:18,710 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:14:18,711 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:14:18,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 23:14:18,718 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 23:14:18,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:14:18,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1127165809, now seen corresponding path program 2 times [2022-02-10 23:14:18,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:14:18,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644373499] [2022-02-10 23:14:18,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:14:18,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:14:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:14:18,817 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 23:14:18,817 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:14:18,817 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644373499] [2022-02-10 23:14:18,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644373499] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:14:18,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:14:18,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 23:14:18,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986730991] [2022-02-10 23:14:18,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:14:18,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 23:14:18,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:14:18,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 23:14:18,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-10 23:14:18,820 INFO L87 Difference]: Start difference. First operand 563 states and 1333 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 23:14:18,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:14:18,942 INFO L93 Difference]: Finished difference Result 963 states and 2291 transitions. [2022-02-10 23:14:18,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 23:14:18,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 70 [2022-02-10 23:14:18,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:14:18,948 INFO L225 Difference]: With dead ends: 963 [2022-02-10 23:14:18,949 INFO L226 Difference]: Without dead ends: 813 [2022-02-10 23:14:18,952 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-02-10 23:14:18,953 INFO L934 BasicCegarLoop]: 91 mSDtfsCounter, 163 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 23:14:18,954 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 388 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 23:14:18,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2022-02-10 23:14:19,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 493. [2022-02-10 23:14:19,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 492 states have (on average 2.363821138211382) internal successors, (1163), 492 states have internal predecessors, (1163), 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 23:14:19,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 1163 transitions. [2022-02-10 23:14:19,030 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 1163 transitions. Word has length 70 [2022-02-10 23:14:19,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:14:19,031 INFO L470 AbstractCegarLoop]: Abstraction has 493 states and 1163 transitions. [2022-02-10 23:14:19,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 23:14:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 1163 transitions. [2022-02-10 23:14:19,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-10 23:14:19,035 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:14:19,035 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:14:19,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 23:14:19,036 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 23:14:19,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:14:19,037 INFO L85 PathProgramCache]: Analyzing trace with hash -358007385, now seen corresponding path program 3 times [2022-02-10 23:14:19,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:14:19,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320944761] [2022-02-10 23:14:19,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:14:19,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:14:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:14:19,183 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 23:14:19,183 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:14:19,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320944761] [2022-02-10 23:14:19,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320944761] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:14:19,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:14:19,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 23:14:19,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417516402] [2022-02-10 23:14:19,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:14:19,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 23:14:19,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:14:19,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 23:14:19,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-10 23:14:19,185 INFO L87 Difference]: Start difference. First operand 493 states and 1163 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 23:14:19,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:14:19,288 INFO L93 Difference]: Finished difference Result 981 states and 2268 transitions. [2022-02-10 23:14:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 23:14:19,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 70 [2022-02-10 23:14:19,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:14:19,292 INFO L225 Difference]: With dead ends: 981 [2022-02-10 23:14:19,292 INFO L226 Difference]: Without dead ends: 901 [2022-02-10 23:14:19,292 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-02-10 23:14:19,293 INFO L934 BasicCegarLoop]: 84 mSDtfsCounter, 262 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:14:19,293 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 362 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:14:19,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2022-02-10 23:14:19,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 473. [2022-02-10 23:14:19,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 472 states have (on average 2.347457627118644) internal successors, (1108), 472 states have internal predecessors, (1108), 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 23:14:19,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 1108 transitions. [2022-02-10 23:14:19,307 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 1108 transitions. Word has length 70 [2022-02-10 23:14:19,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:14:19,307 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 1108 transitions. [2022-02-10 23:14:19,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 23:14:19,307 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 1108 transitions. [2022-02-10 23:14:19,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-10 23:14:19,309 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:14:19,309 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:14:19,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 23:14:19,309 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 23:14:19,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:14:19,310 INFO L85 PathProgramCache]: Analyzing trace with hash -8965451, now seen corresponding path program 4 times [2022-02-10 23:14:19,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:14:19,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028452680] [2022-02-10 23:14:19,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:14:19,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:14:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:14:19,402 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 23:14:19,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:14:19,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028452680] [2022-02-10 23:14:19,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028452680] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:14:19,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:14:19,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 23:14:19,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953257453] [2022-02-10 23:14:19,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:14:19,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 23:14:19,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:14:19,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 23:14:19,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-10 23:14:19,404 INFO L87 Difference]: Start difference. First operand 473 states and 1108 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 23:14:19,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:14:19,494 INFO L93 Difference]: Finished difference Result 901 states and 2060 transitions. [2022-02-10 23:14:19,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 23:14:19,494 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 70 [2022-02-10 23:14:19,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:14:19,497 INFO L225 Difference]: With dead ends: 901 [2022-02-10 23:14:19,498 INFO L226 Difference]: Without dead ends: 841 [2022-02-10 23:14:19,498 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-02-10 23:14:19,499 INFO L934 BasicCegarLoop]: 81 mSDtfsCounter, 269 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:14:19,499 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 382 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:14:19,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2022-02-10 23:14:19,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 485. [2022-02-10 23:14:19,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 484 states have (on average 2.3326446280991737) internal successors, (1129), 484 states have internal predecessors, (1129), 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 23:14:19,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 1129 transitions. [2022-02-10 23:14:19,513 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 1129 transitions. Word has length 70 [2022-02-10 23:14:19,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:14:19,513 INFO L470 AbstractCegarLoop]: Abstraction has 485 states and 1129 transitions. [2022-02-10 23:14:19,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 23:14:19,513 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 1129 transitions. [2022-02-10 23:14:19,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-10 23:14:19,515 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:14:19,515 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:14:19,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 23:14:19,515 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 23:14:19,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:14:19,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1379107601, now seen corresponding path program 5 times [2022-02-10 23:14:19,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:14:19,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201857314] [2022-02-10 23:14:19,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:14:19,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:14:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:14:19,552 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 23:14:19,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:14:19,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201857314] [2022-02-10 23:14:19,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201857314] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:14:19,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:14:19,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:14:19,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356378866] [2022-02-10 23:14:19,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:14:19,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:14:19,554 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:14:19,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:14:19,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:14:19,554 INFO L87 Difference]: Start difference. First operand 485 states and 1129 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 23:14:19,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:14:19,568 INFO L93 Difference]: Finished difference Result 481 states and 1106 transitions. [2022-02-10 23:14:19,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:14:19,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2022-02-10 23:14:19,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:14:19,570 INFO L225 Difference]: With dead ends: 481 [2022-02-10 23:14:19,570 INFO L226 Difference]: Without dead ends: 455 [2022-02-10 23:14:19,570 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:14:19,571 INFO L934 BasicCegarLoop]: 79 mSDtfsCounter, 7 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:14:19,571 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 136 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:14:19,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-02-10 23:14:19,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2022-02-10 23:14:19,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 454 states have (on average 2.314977973568282) internal successors, (1051), 454 states have internal predecessors, (1051), 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 23:14:19,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 1051 transitions. [2022-02-10 23:14:19,580 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 1051 transitions. Word has length 70 [2022-02-10 23:14:19,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:14:19,580 INFO L470 AbstractCegarLoop]: Abstraction has 455 states and 1051 transitions. [2022-02-10 23:14:19,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 23:14:19,580 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 1051 transitions. [2022-02-10 23:14:19,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-10 23:14:19,581 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:14:19,582 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:14:19,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 23:14:19,582 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 23:14:19,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:14:19,582 INFO L85 PathProgramCache]: Analyzing trace with hash 448355151, now seen corresponding path program 6 times [2022-02-10 23:14:19,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:14:19,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9366105] [2022-02-10 23:14:19,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:14:19,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:14:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:14:19,611 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 23:14:19,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:14:19,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9366105] [2022-02-10 23:14:19,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9366105] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:14:19,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:14:19,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:14:19,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372544431] [2022-02-10 23:14:19,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:14:19,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:14:19,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:14:19,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:14:19,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:14:19,613 INFO L87 Difference]: Start difference. First operand 455 states and 1051 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 23:14:19,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:14:19,625 INFO L93 Difference]: Finished difference Result 443 states and 1018 transitions. [2022-02-10 23:14:19,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:14:19,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2022-02-10 23:14:19,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:14:19,627 INFO L225 Difference]: With dead ends: 443 [2022-02-10 23:14:19,627 INFO L226 Difference]: Without dead ends: 443 [2022-02-10 23:14:19,627 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:14:19,628 INFO L934 BasicCegarLoop]: 66 mSDtfsCounter, 4 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:14:19,628 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 123 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:14:19,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-02-10 23:14:19,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2022-02-10 23:14:19,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 442 states have (on average 2.3031674208144794) internal successors, (1018), 442 states have internal predecessors, (1018), 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 23:14:19,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 1018 transitions. [2022-02-10 23:14:19,637 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 1018 transitions. Word has length 70 [2022-02-10 23:14:19,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:14:19,637 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 1018 transitions. [2022-02-10 23:14:19,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 23:14:19,637 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 1018 transitions. [2022-02-10 23:14:19,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-10 23:14:19,638 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:14:19,638 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:14:19,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 23:14:19,639 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 23:14:19,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:14:19,639 INFO L85 PathProgramCache]: Analyzing trace with hash -238163007, now seen corresponding path program 7 times [2022-02-10 23:14:19,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:14:19,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411684855] [2022-02-10 23:14:19,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:14:19,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:14:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:14:19,694 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 23:14:19,694 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:14:19,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411684855] [2022-02-10 23:14:19,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411684855] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:14:19,694 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:14:19,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 23:14:19,694 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211727298] [2022-02-10 23:14:19,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:14:19,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 23:14:19,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:14:19,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 23:14:19,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-10 23:14:19,695 INFO L87 Difference]: Start difference. First operand 443 states and 1018 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 23:14:19,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:14:19,752 INFO L93 Difference]: Finished difference Result 365 states and 808 transitions. [2022-02-10 23:14:19,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 23:14:19,753 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 70 [2022-02-10 23:14:19,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:14:19,754 INFO L225 Difference]: With dead ends: 365 [2022-02-10 23:14:19,754 INFO L226 Difference]: Without dead ends: 365 [2022-02-10 23:14:19,754 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-02-10 23:14:19,755 INFO L934 BasicCegarLoop]: 76 mSDtfsCounter, 131 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:14:19,755 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 288 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:14:19,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-02-10 23:14:19,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2022-02-10 23:14:19,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 2.21978021978022) internal successors, (808), 364 states have internal predecessors, (808), 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 23:14:19,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 808 transitions. [2022-02-10 23:14:19,761 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 808 transitions. Word has length 70 [2022-02-10 23:14:19,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:14:19,762 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 808 transitions. [2022-02-10 23:14:19,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 23:14:19,762 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 808 transitions. [2022-02-10 23:14:19,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-10 23:14:19,763 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:14:19,763 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:14:19,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 23:14:19,763 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 23:14:19,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:14:19,763 INFO L85 PathProgramCache]: Analyzing trace with hash -629587037, now seen corresponding path program 8 times [2022-02-10 23:14:19,763 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:14:19,763 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631753721] [2022-02-10 23:14:19,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:14:19,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:14:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:14:19,866 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 23:14:19,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:14:19,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631753721] [2022-02-10 23:14:19,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631753721] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:14:19,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:14:19,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-10 23:14:19,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663190245] [2022-02-10 23:14:19,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:14:19,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 23:14:19,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:14:19,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 23:14:19,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-02-10 23:14:19,868 INFO L87 Difference]: Start difference. First operand 365 states and 808 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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 23:14:19,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:14:19,936 INFO L93 Difference]: Finished difference Result 362 states and 805 transitions. [2022-02-10 23:14:19,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 23:14:19,936 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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 70 [2022-02-10 23:14:19,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:14:19,936 INFO L225 Difference]: With dead ends: 362 [2022-02-10 23:14:19,936 INFO L226 Difference]: Without dead ends: 0 [2022-02-10 23:14:19,937 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-02-10 23:14:19,937 INFO L934 BasicCegarLoop]: 70 mSDtfsCounter, 100 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:14:19,937 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 427 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:14:19,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-10 23:14:19,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-10 23:14:19,938 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 23:14:19,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-10 23:14:19,938 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2022-02-10 23:14:19,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:14:19,938 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-10 23:14:19,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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 23:14:19,938 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-10 23:14:19,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-10 23:14:19,940 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-10 23:14:19,940 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-10 23:14:19,941 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-10 23:14:19,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 23:14:19,943 INFO L733 BasicCegarLoop]: Path program histogram: [8] [2022-02-10 23:14:19,944 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 23:14:19,944 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 23:14:19,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 11:14:19 BasicIcfg [2022-02-10 23:14:19,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 23:14:19,946 INFO L158 Benchmark]: Toolchain (without parser) took 2965.98ms. Allocated memory was 190.8MB in the beginning and 294.6MB in the end (delta: 103.8MB). Free memory was 139.8MB in the beginning and 127.3MB in the end (delta: 12.5MB). Peak memory consumption was 115.9MB. Max. memory is 8.0GB. [2022-02-10 23:14:19,946 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 190.8MB. Free memory is still 156.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 23:14:19,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.19ms. Allocated memory is still 190.8MB. Free memory was 139.5MB in the beginning and 165.8MB in the end (delta: -26.4MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. [2022-02-10 23:14:19,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.34ms. Allocated memory is still 190.8MB. Free memory was 165.3MB in the beginning and 163.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 23:14:19,946 INFO L158 Benchmark]: Boogie Preprocessor took 27.20ms. Allocated memory is still 190.8MB. Free memory was 163.7MB in the beginning and 162.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 23:14:19,947 INFO L158 Benchmark]: RCFGBuilder took 373.35ms. Allocated memory is still 190.8MB. Free memory was 162.2MB in the beginning and 148.0MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-10 23:14:19,947 INFO L158 Benchmark]: TraceAbstraction took 2263.73ms. Allocated memory was 190.8MB in the beginning and 294.6MB in the end (delta: 103.8MB). Free memory was 147.5MB in the beginning and 127.3MB in the end (delta: 20.2MB). Peak memory consumption was 123.5MB. Max. memory is 8.0GB. [2022-02-10 23:14:19,948 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 190.8MB. Free memory is still 156.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 257.19ms. Allocated memory is still 190.8MB. Free memory was 139.5MB in the beginning and 165.8MB in the end (delta: -26.4MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.34ms. Allocated memory is still 190.8MB. Free memory was 165.3MB in the beginning and 163.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.20ms. Allocated memory is still 190.8MB. Free memory was 163.7MB in the beginning and 162.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 373.35ms. Allocated memory is still 190.8MB. Free memory was 162.2MB in the beginning and 148.0MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2263.73ms. Allocated memory was 190.8MB in the beginning and 294.6MB in the end (delta: 103.8MB). Free memory was 147.5MB in the beginning and 127.3MB in the end (delta: 20.2MB). Peak memory consumption was 123.5MB. 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: 116]: 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, 109 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1119 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1119 mSDsluCounter, 2706 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2322 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 644 IncrementalHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 643 mSDtfsCounter, 644 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=721occurred in iteration=0, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 1290 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 560 NumberOfCodeBlocks, 560 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 552 ConstructedInterpolants, 0 QuantifiedInterpolants, 1696 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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 23:14:19,978 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 Received shutdown request...