/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 17:24:09,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 17:24:09,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 17:24:09,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 17:24:09,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 17:24:09,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 17:24:09,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 17:24:09,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 17:24:09,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 17:24:09,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 17:24:09,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 17:24:09,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 17:24:09,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 17:24:09,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 17:24:09,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 17:24:09,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 17:24:09,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-21 17:24:09,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 17:24:09,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 17:24:09,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 17:24:09,080 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 [2021-05-21 17:24:09,107 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 17:24:09,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 17:24:09,108 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 17:24:09,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 17:24:09,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 17:24:09,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 17:24:09,110 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 17:24:09,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 17:24:09,111 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 17:24:09,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 17:24:09,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 17:24:09,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 17:24:09,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 17:24:09,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 17:24:09,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 17:24:09,112 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 17:24:09,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 17:24:09,112 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 17:24:09,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 17:24:09,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 17:24:09,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 17:24:09,112 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 17:24:09,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 17:24:09,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 17:24:09,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 17:24:09,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 17:24:09,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 17:24:09,113 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 17:24:09,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 17:24:09,113 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 17:24:09,113 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 17:24:09,113 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 17:24:09,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 17:24:09,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 17:24:09,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 17:24:09,381 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 17:24:09,382 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 17:24:09,382 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2021-05-21 17:24:09,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dfb7131c/24dec33dcba44305bfaff2cf1b10dabd/FLAG7c9673e08 [2021-05-21 17:24:09,830 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 17:24:09,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2021-05-21 17:24:09,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dfb7131c/24dec33dcba44305bfaff2cf1b10dabd/FLAG7c9673e08 [2021-05-21 17:24:10,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dfb7131c/24dec33dcba44305bfaff2cf1b10dabd [2021-05-21 17:24:10,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 17:24:10,168 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 17:24:10,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 17:24:10,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 17:24:10,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 17:24:10,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:24:10" (1/1) ... [2021-05-21 17:24:10,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4928461b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:24:10, skipping insertion in model container [2021-05-21 17:24:10,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:24:10" (1/1) ... [2021-05-21 17:24:10,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 17:24:10,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 17:24:10,304 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i[950,963] [2021-05-21 17:24:10,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:24:10,449 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 17:24:10,461 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i[950,963] [2021-05-21 17:24:10,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:24:10,524 INFO L208 MainTranslator]: Completed translation [2021-05-21 17:24:10,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:24:10 WrapperNode [2021-05-21 17:24:10,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 17:24:10,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 17:24:10,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 17:24:10,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 17:24:10,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:24:10" (1/1) ... [2021-05-21 17:24:10,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:24:10" (1/1) ... [2021-05-21 17:24:10,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 17:24:10,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 17:24:10,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 17:24:10,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 17:24:10,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:24:10" (1/1) ... [2021-05-21 17:24:10,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:24:10" (1/1) ... [2021-05-21 17:24:10,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:24:10" (1/1) ... [2021-05-21 17:24:10,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:24:10" (1/1) ... [2021-05-21 17:24:10,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:24:10" (1/1) ... [2021-05-21 17:24:10,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:24:10" (1/1) ... [2021-05-21 17:24:10,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:24:10" (1/1) ... [2021-05-21 17:24:10,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 17:24:10,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 17:24:10,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 17:24:10,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 17:24:10,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:24:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 17:24:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 17:24:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 17:24:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 17:24:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 17:24:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 17:24:10,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 17:24:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 17:24:10,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 17:24:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-05-21 17:24:10,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-05-21 17:24:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-05-21 17:24:10,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-05-21 17:24:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 17:24:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 17:24:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 17:24:10,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 17:24:10,640 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 17:24:10,939 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 17:24:10,939 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 17:24:10,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:24:10 BoogieIcfgContainer [2021-05-21 17:24:10,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 17:24:10,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 17:24:10,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 17:24:10,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 17:24:10,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 05:24:10" (1/3) ... [2021-05-21 17:24:10,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bc66fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:24:10, skipping insertion in model container [2021-05-21 17:24:10,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:24:10" (2/3) ... [2021-05-21 17:24:10,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bc66fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:24:10, skipping insertion in model container [2021-05-21 17:24:10,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:24:10" (3/3) ... [2021-05-21 17:24:10,946 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2021-05-21 17:24:10,950 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 17:24:10,950 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 17:24:10,950 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 17:24:10,951 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 17:24:10,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,979 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,979 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,979 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,979 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,981 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,982 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,982 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,982 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,984 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,984 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,985 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,985 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,986 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,986 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,986 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,986 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,986 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,986 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,986 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,987 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,987 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,987 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,987 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,988 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,990 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,990 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,990 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,990 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,993 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,994 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,994 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,994 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,995 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,995 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,995 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,996 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,997 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,998 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,998 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,998 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:24:10,999 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 17:24:11,015 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-05-21 17:24:11,035 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 17:24:11,036 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 17:24:11,036 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 17:24:11,036 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 17:24:11,036 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 17:24:11,036 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 17:24:11,036 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 17:24:11,036 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 17:24:11,047 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 108 places, 97 transitions, 214 flow [2021-05-21 17:24:15,892 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 51814 states, 51812 states have (on average 4.368717671581873) internal successors, (226352), 51813 states have internal predecessors, (226352), 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) [2021-05-21 17:24:16,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 51814 states, 51812 states have (on average 4.368717671581873) internal successors, (226352), 51813 states have internal predecessors, (226352), 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) [2021-05-21 17:24:16,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-21 17:24:16,138 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:24:16,139 INFO L521 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] [2021-05-21 17:24:16,139 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:24:16,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:24:16,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1675625032, now seen corresponding path program 1 times [2021-05-21 17:24:16,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:24:16,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892101477] [2021-05-21 17:24:16,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:24:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:24:16,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:24:16,576 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:24:16,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892101477] [2021-05-21 17:24:16,577 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892101477] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:24:16,577 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:24:16,577 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:24:16,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4738142] [2021-05-21 17:24:16,582 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:24:16,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:24:16,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:24:16,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:24:16,670 INFO L87 Difference]: Start difference. First operand has 51814 states, 51812 states have (on average 4.368717671581873) internal successors, (226352), 51813 states have internal predecessors, (226352), 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 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2021-05-21 17:24:17,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:24:17,804 INFO L93 Difference]: Finished difference Result 115618 states and 491448 transitions. [2021-05-21 17:24:17,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 17:24:17,806 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2021-05-21 17:24:17,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:24:18,269 INFO L225 Difference]: With dead ends: 115618 [2021-05-21 17:24:18,269 INFO L226 Difference]: Without dead ends: 36814 [2021-05-21 17:24:18,270 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 228.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:24:18,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36814 states. [2021-05-21 17:24:19,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36814 to 30478. [2021-05-21 17:24:19,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30478 states, 30477 states have (on average 4.128884076516718) internal successors, (125836), 30477 states have internal predecessors, (125836), 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) [2021-05-21 17:24:19,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30478 states to 30478 states and 125836 transitions. [2021-05-21 17:24:19,648 INFO L78 Accepts]: Start accepts. Automaton has 30478 states and 125836 transitions. Word has length 55 [2021-05-21 17:24:19,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:24:19,649 INFO L482 AbstractCegarLoop]: Abstraction has 30478 states and 125836 transitions. [2021-05-21 17:24:19,649 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2021-05-21 17:24:19,649 INFO L276 IsEmpty]: Start isEmpty. Operand 30478 states and 125836 transitions. [2021-05-21 17:24:19,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-21 17:24:19,867 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:24:19,867 INFO L521 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] [2021-05-21 17:24:19,867 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 17:24:19,867 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:24:19,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:24:19,868 INFO L82 PathProgramCache]: Analyzing trace with hash -728552423, now seen corresponding path program 1 times [2021-05-21 17:24:19,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:24:19,868 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064130560] [2021-05-21 17:24:19,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:24:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:24:20,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:24:20,023 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:24:20,023 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064130560] [2021-05-21 17:24:20,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064130560] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:24:20,023 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:24:20,023 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:24:20,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103985144] [2021-05-21 17:24:20,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:24:20,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:24:20,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:24:20,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:24:20,026 INFO L87 Difference]: Start difference. First operand 30478 states and 125836 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-05-21 17:24:20,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:24:20,658 INFO L93 Difference]: Finished difference Result 45766 states and 187560 transitions. [2021-05-21 17:24:20,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 17:24:20,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2021-05-21 17:24:20,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:24:20,775 INFO L225 Difference]: With dead ends: 45766 [2021-05-21 17:24:20,776 INFO L226 Difference]: Without dead ends: 36694 [2021-05-21 17:24:20,776 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 137.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:24:21,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36694 states. [2021-05-21 17:24:21,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36694 to 29230. [2021-05-21 17:24:21,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29230 states, 29229 states have (on average 4.115022751377057) internal successors, (120278), 29229 states have internal predecessors, (120278), 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) [2021-05-21 17:24:22,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29230 states to 29230 states and 120278 transitions. [2021-05-21 17:24:22,052 INFO L78 Accepts]: Start accepts. Automaton has 29230 states and 120278 transitions. Word has length 57 [2021-05-21 17:24:22,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:24:22,053 INFO L482 AbstractCegarLoop]: Abstraction has 29230 states and 120278 transitions. [2021-05-21 17:24:22,053 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-05-21 17:24:22,053 INFO L276 IsEmpty]: Start isEmpty. Operand 29230 states and 120278 transitions. [2021-05-21 17:24:22,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-21 17:24:22,117 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:24:22,117 INFO L521 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] [2021-05-21 17:24:22,117 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 17:24:22,117 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:24:22,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:24:22,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1714446202, now seen corresponding path program 1 times [2021-05-21 17:24:22,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:24:22,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668107925] [2021-05-21 17:24:22,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:24:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:24:22,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:24:22,224 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:24:22,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668107925] [2021-05-21 17:24:22,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668107925] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:24:22,224 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:24:22,224 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 17:24:22,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026390343] [2021-05-21 17:24:22,225 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 17:24:22,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:24:22,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 17:24:22,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-05-21 17:24:22,226 INFO L87 Difference]: Start difference. First operand 29230 states and 120278 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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) [2021-05-21 17:24:22,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:24:22,773 INFO L93 Difference]: Finished difference Result 50986 states and 207167 transitions. [2021-05-21 17:24:22,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 17:24:22,773 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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 59 [2021-05-21 17:24:22,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:24:22,917 INFO L225 Difference]: With dead ends: 50986 [2021-05-21 17:24:22,917 INFO L226 Difference]: Without dead ends: 29028 [2021-05-21 17:24:22,918 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 104.2ms TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:24:23,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29028 states. [2021-05-21 17:24:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29028 to 24052. [2021-05-21 17:24:23,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24052 states, 24051 states have (on average 4.042576192258118) internal successors, (97228), 24051 states have internal predecessors, (97228), 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) [2021-05-21 17:24:23,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24052 states to 24052 states and 97228 transitions. [2021-05-21 17:24:23,649 INFO L78 Accepts]: Start accepts. Automaton has 24052 states and 97228 transitions. Word has length 59 [2021-05-21 17:24:23,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:24:23,650 INFO L482 AbstractCegarLoop]: Abstraction has 24052 states and 97228 transitions. [2021-05-21 17:24:23,650 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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) [2021-05-21 17:24:23,650 INFO L276 IsEmpty]: Start isEmpty. Operand 24052 states and 97228 transitions. [2021-05-21 17:24:23,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-05-21 17:24:23,693 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:24:23,693 INFO L521 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] [2021-05-21 17:24:23,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 17:24:23,693 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:24:23,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:24:23,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1714578911, now seen corresponding path program 1 times [2021-05-21 17:24:23,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:24:23,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482413640] [2021-05-21 17:24:23,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:24:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:24:23,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:24:23,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:24:23,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482413640] [2021-05-21 17:24:23,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482413640] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:24:23,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:24:23,754 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:24:23,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046464120] [2021-05-21 17:24:23,756 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:24:23,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:24:23,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:24:23,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:24:23,757 INFO L87 Difference]: Start difference. First operand 24052 states and 97228 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:24:23,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:24:23,953 INFO L93 Difference]: Finished difference Result 25332 states and 102012 transitions. [2021-05-21 17:24:23,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:24:23,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-05-21 17:24:23,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:24:24,033 INFO L225 Difference]: With dead ends: 25332 [2021-05-21 17:24:24,033 INFO L226 Difference]: Without dead ends: 23092 [2021-05-21 17:24:24,034 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 69.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:24:24,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23092 states. [2021-05-21 17:24:24,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23092 to 22068. [2021-05-21 17:24:24,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22068 states, 22067 states have (on average 4.027552453890425) internal successors, (88876), 22067 states have internal predecessors, (88876), 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) [2021-05-21 17:24:24,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22068 states to 22068 states and 88876 transitions. [2021-05-21 17:24:24,688 INFO L78 Accepts]: Start accepts. Automaton has 22068 states and 88876 transitions. Word has length 61 [2021-05-21 17:24:24,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:24:24,688 INFO L482 AbstractCegarLoop]: Abstraction has 22068 states and 88876 transitions. [2021-05-21 17:24:24,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:24:24,688 INFO L276 IsEmpty]: Start isEmpty. Operand 22068 states and 88876 transitions. [2021-05-21 17:24:24,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-05-21 17:24:24,723 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:24:24,723 INFO L521 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] [2021-05-21 17:24:24,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 17:24:24,723 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:24:24,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:24:24,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1579705773, now seen corresponding path program 1 times [2021-05-21 17:24:24,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:24:24,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617301238] [2021-05-21 17:24:24,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:24:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:24:24,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:24:24,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:24:24,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617301238] [2021-05-21 17:24:24,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617301238] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:24:24,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:24:24,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 17:24:24,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947506105] [2021-05-21 17:24:24,797 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 17:24:24,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:24:24,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 17:24:24,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-05-21 17:24:24,797 INFO L87 Difference]: Start difference. First operand 22068 states and 88876 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:24:25,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:24:25,354 INFO L93 Difference]: Finished difference Result 46036 states and 181948 transitions. [2021-05-21 17:24:25,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-21 17:24:25,354 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-05-21 17:24:25,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:24:25,433 INFO L225 Difference]: With dead ends: 46036 [2021-05-21 17:24:25,433 INFO L226 Difference]: Without dead ends: 21276 [2021-05-21 17:24:25,433 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 125.0ms TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:24:25,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21276 states. [2021-05-21 17:24:25,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21276 to 16412. [2021-05-21 17:24:25,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16412 states, 16411 states have (on average 3.888245688867223) internal successors, (63810), 16411 states have internal predecessors, (63810), 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) [2021-05-21 17:24:25,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16412 states to 16412 states and 63810 transitions. [2021-05-21 17:24:25,811 INFO L78 Accepts]: Start accepts. Automaton has 16412 states and 63810 transitions. Word has length 62 [2021-05-21 17:24:25,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:24:25,811 INFO L482 AbstractCegarLoop]: Abstraction has 16412 states and 63810 transitions. [2021-05-21 17:24:25,811 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:24:25,811 INFO L276 IsEmpty]: Start isEmpty. Operand 16412 states and 63810 transitions. [2021-05-21 17:24:25,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-05-21 17:24:25,835 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:24:25,835 INFO L521 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] [2021-05-21 17:24:25,835 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 17:24:25,835 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:24:25,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:24:25,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1358272108, now seen corresponding path program 1 times [2021-05-21 17:24:25,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:24:25,836 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302363465] [2021-05-21 17:24:25,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:24:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:24:25,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:24:25,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:24:25,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302363465] [2021-05-21 17:24:25,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302363465] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:24:25,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:24:25,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:24:25,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433818995] [2021-05-21 17:24:25,905 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:24:25,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:24:25,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:24:25,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:24:25,905 INFO L87 Difference]: Start difference. First operand 16412 states and 63810 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:24:26,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:24:26,252 INFO L93 Difference]: Finished difference Result 25564 states and 98786 transitions. [2021-05-21 17:24:26,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 17:24:26,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-05-21 17:24:26,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:24:26,305 INFO L225 Difference]: With dead ends: 25564 [2021-05-21 17:24:26,305 INFO L226 Difference]: Without dead ends: 19804 [2021-05-21 17:24:26,305 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 129.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:24:26,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19804 states. [2021-05-21 17:24:26,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19804 to 15084. [2021-05-21 17:24:26,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15084 states, 15083 states have (on average 3.872571769541868) internal successors, (58410), 15083 states have internal predecessors, (58410), 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) [2021-05-21 17:24:26,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15084 states to 15084 states and 58410 transitions. [2021-05-21 17:24:26,667 INFO L78 Accepts]: Start accepts. Automaton has 15084 states and 58410 transitions. Word has length 62 [2021-05-21 17:24:26,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:24:26,667 INFO L482 AbstractCegarLoop]: Abstraction has 15084 states and 58410 transitions. [2021-05-21 17:24:26,667 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:24:26,667 INFO L276 IsEmpty]: Start isEmpty. Operand 15084 states and 58410 transitions. [2021-05-21 17:24:26,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-05-21 17:24:26,691 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:24:26,691 INFO L521 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] [2021-05-21 17:24:26,691 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 17:24:26,691 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:24:26,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:24:26,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1753261216, now seen corresponding path program 1 times [2021-05-21 17:24:26,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:24:26,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485642718] [2021-05-21 17:24:26,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:24:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:24:26,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:24:26,746 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:24:26,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485642718] [2021-05-21 17:24:26,747 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485642718] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:24:26,747 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:24:26,747 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:24:26,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126992207] [2021-05-21 17:24:26,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:24:26,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:24:26,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:24:26,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:24:26,747 INFO L87 Difference]: Start difference. First operand 15084 states and 58410 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-05-21 17:24:26,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:24:26,990 INFO L93 Difference]: Finished difference Result 20124 states and 76962 transitions. [2021-05-21 17:24:26,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-21 17:24:26,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 63 [2021-05-21 17:24:26,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:24:27,014 INFO L225 Difference]: With dead ends: 20124 [2021-05-21 17:24:27,014 INFO L226 Difference]: Without dead ends: 9479 [2021-05-21 17:24:27,014 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 63.2ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:24:27,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9479 states. [2021-05-21 17:24:27,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9479 to 9479. [2021-05-21 17:24:27,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9479 states, 9478 states have (on average 3.8269677147077443) internal successors, (36272), 9478 states have internal predecessors, (36272), 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) [2021-05-21 17:24:27,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9479 states to 9479 states and 36272 transitions. [2021-05-21 17:24:27,210 INFO L78 Accepts]: Start accepts. Automaton has 9479 states and 36272 transitions. Word has length 63 [2021-05-21 17:24:27,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:24:27,210 INFO L482 AbstractCegarLoop]: Abstraction has 9479 states and 36272 transitions. [2021-05-21 17:24:27,210 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-05-21 17:24:27,210 INFO L276 IsEmpty]: Start isEmpty. Operand 9479 states and 36272 transitions. [2021-05-21 17:24:27,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-05-21 17:24:27,223 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:24:27,223 INFO L521 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] [2021-05-21 17:24:27,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 17:24:27,223 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:24:27,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:24:27,223 INFO L82 PathProgramCache]: Analyzing trace with hash 261023848, now seen corresponding path program 2 times [2021-05-21 17:24:27,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:24:27,224 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870793245] [2021-05-21 17:24:27,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:24:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:24:27,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:24:27,276 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:24:27,276 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870793245] [2021-05-21 17:24:27,276 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870793245] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:24:27,277 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:24:27,277 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:24:27,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360394199] [2021-05-21 17:24:27,277 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:24:27,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:24:27,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:24:27,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:24:27,277 INFO L87 Difference]: Start difference. First operand 9479 states and 36272 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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) [2021-05-21 17:24:27,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:24:27,410 INFO L93 Difference]: Finished difference Result 12330 states and 46729 transitions. [2021-05-21 17:24:27,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:24:27,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 63 [2021-05-21 17:24:27,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:24:27,431 INFO L225 Difference]: With dead ends: 12330 [2021-05-21 17:24:27,431 INFO L226 Difference]: Without dead ends: 9130 [2021-05-21 17:24:27,432 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 64.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:24:27,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9130 states. [2021-05-21 17:24:27,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9130 to 9130. [2021-05-21 17:24:27,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 9129 states have (on average 3.8041406506736775) internal successors, (34728), 9129 states have internal predecessors, (34728), 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) [2021-05-21 17:24:27,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 34728 transitions. [2021-05-21 17:24:27,622 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 34728 transitions. Word has length 63 [2021-05-21 17:24:27,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:24:27,622 INFO L482 AbstractCegarLoop]: Abstraction has 9130 states and 34728 transitions. [2021-05-21 17:24:27,622 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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) [2021-05-21 17:24:27,622 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 34728 transitions. [2021-05-21 17:24:27,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-05-21 17:24:27,634 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:24:27,635 INFO L521 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] [2021-05-21 17:24:27,635 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 17:24:27,635 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:24:27,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:24:27,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1335715918, now seen corresponding path program 1 times [2021-05-21 17:24:27,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:24:27,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408663866] [2021-05-21 17:24:27,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:24:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:24:27,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:24:27,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:24:27,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408663866] [2021-05-21 17:24:27,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408663866] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:24:27,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:24:27,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:24:27,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454104456] [2021-05-21 17:24:27,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:24:27,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:24:27,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:24:27,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:24:27,694 INFO L87 Difference]: Start difference. First operand 9130 states and 34728 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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) [2021-05-21 17:24:27,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:24:27,886 INFO L93 Difference]: Finished difference Result 10600 states and 39578 transitions. [2021-05-21 17:24:27,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:24:27,886 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 64 [2021-05-21 17:24:27,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:24:27,902 INFO L225 Difference]: With dead ends: 10600 [2021-05-21 17:24:27,902 INFO L226 Difference]: Without dead ends: 7660 [2021-05-21 17:24:27,903 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 71.7ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-05-21 17:24:27,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7660 states. [2021-05-21 17:24:28,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7660 to 7660. [2021-05-21 17:24:28,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7660 states, 7659 states have (on average 3.7181094137615878) internal successors, (28477), 7659 states have internal predecessors, (28477), 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) [2021-05-21 17:24:28,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7660 states to 7660 states and 28477 transitions. [2021-05-21 17:24:28,034 INFO L78 Accepts]: Start accepts. Automaton has 7660 states and 28477 transitions. Word has length 64 [2021-05-21 17:24:28,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:24:28,035 INFO L482 AbstractCegarLoop]: Abstraction has 7660 states and 28477 transitions. [2021-05-21 17:24:28,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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) [2021-05-21 17:24:28,035 INFO L276 IsEmpty]: Start isEmpty. Operand 7660 states and 28477 transitions. [2021-05-21 17:24:28,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-05-21 17:24:28,044 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:24:28,044 INFO L521 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] [2021-05-21 17:24:28,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-21 17:24:28,044 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:24:28,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:24:28,045 INFO L82 PathProgramCache]: Analyzing trace with hash 530155275, now seen corresponding path program 1 times [2021-05-21 17:24:28,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:24:28,045 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402943926] [2021-05-21 17:24:28,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:24:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:24:28,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:24:28,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:24:28,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402943926] [2021-05-21 17:24:28,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402943926] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:24:28,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:24:28,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 17:24:28,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6855774] [2021-05-21 17:24:28,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 17:24:28,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:24:28,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 17:24:28,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-21 17:24:28,100 INFO L87 Difference]: Start difference. First operand 7660 states and 28477 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2021-05-21 17:24:28,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:24:28,261 INFO L93 Difference]: Finished difference Result 7003 states and 25387 transitions. [2021-05-21 17:24:28,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 17:24:28,261 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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 65 [2021-05-21 17:24:28,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:24:28,270 INFO L225 Difference]: With dead ends: 7003 [2021-05-21 17:24:28,270 INFO L226 Difference]: Without dead ends: 4591 [2021-05-21 17:24:28,270 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 97.4ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:24:28,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4591 states. [2021-05-21 17:24:28,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4591 to 4591. [2021-05-21 17:24:28,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4591 states, 4590 states have (on average 3.555773420479303) internal successors, (16321), 4590 states have internal predecessors, (16321), 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) [2021-05-21 17:24:28,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 16321 transitions. [2021-05-21 17:24:28,337 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 16321 transitions. Word has length 65 [2021-05-21 17:24:28,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:24:28,338 INFO L482 AbstractCegarLoop]: Abstraction has 4591 states and 16321 transitions. [2021-05-21 17:24:28,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2021-05-21 17:24:28,338 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 16321 transitions. [2021-05-21 17:24:28,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-05-21 17:24:28,343 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:24:28,343 INFO L521 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] [2021-05-21 17:24:28,343 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-21 17:24:28,343 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:24:28,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:24:28,344 INFO L82 PathProgramCache]: Analyzing trace with hash -59477818, now seen corresponding path program 1 times [2021-05-21 17:24:28,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:24:28,344 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187815708] [2021-05-21 17:24:28,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:24:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:24:28,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:24:28,428 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:24:28,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187815708] [2021-05-21 17:24:28,428 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187815708] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:24:28,428 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:24:28,429 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 17:24:28,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314002143] [2021-05-21 17:24:28,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 17:24:28,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:24:28,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 17:24:28,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-05-21 17:24:28,429 INFO L87 Difference]: Start difference. First operand 4591 states and 16321 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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) [2021-05-21 17:24:28,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:24:28,522 INFO L93 Difference]: Finished difference Result 5944 states and 20931 transitions. [2021-05-21 17:24:28,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:24:28,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2021-05-21 17:24:28,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:24:28,531 INFO L225 Difference]: With dead ends: 5944 [2021-05-21 17:24:28,532 INFO L226 Difference]: Without dead ends: 4869 [2021-05-21 17:24:28,532 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 96.8ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-05-21 17:24:28,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4869 states. [2021-05-21 17:24:28,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4869 to 4383. [2021-05-21 17:24:28,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4383 states, 4382 states have (on average 3.543815609310817) internal successors, (15529), 4382 states have internal predecessors, (15529), 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) [2021-05-21 17:24:28,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4383 states to 4383 states and 15529 transitions. [2021-05-21 17:24:28,600 INFO L78 Accepts]: Start accepts. Automaton has 4383 states and 15529 transitions. Word has length 67 [2021-05-21 17:24:28,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:24:28,600 INFO L482 AbstractCegarLoop]: Abstraction has 4383 states and 15529 transitions. [2021-05-21 17:24:28,600 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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) [2021-05-21 17:24:28,600 INFO L276 IsEmpty]: Start isEmpty. Operand 4383 states and 15529 transitions. [2021-05-21 17:24:28,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-05-21 17:24:28,605 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:24:28,605 INFO L521 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] [2021-05-21 17:24:28,605 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-21 17:24:28,605 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:24:28,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:24:28,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1749123924, now seen corresponding path program 2 times [2021-05-21 17:24:28,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:24:28,606 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120014935] [2021-05-21 17:24:28,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:24:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:24:28,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:24:28,668 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:24:28,668 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120014935] [2021-05-21 17:24:28,668 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120014935] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:24:28,668 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:24:28,668 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-21 17:24:28,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669012997] [2021-05-21 17:24:28,669 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-21 17:24:28,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:24:28,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-21 17:24:28,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-05-21 17:24:28,669 INFO L87 Difference]: Start difference. First operand 4383 states and 15529 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 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) [2021-05-21 17:24:28,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:24:28,757 INFO L93 Difference]: Finished difference Result 3087 states and 10696 transitions. [2021-05-21 17:24:28,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:24:28,757 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 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 67 [2021-05-21 17:24:28,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:24:28,757 INFO L225 Difference]: With dead ends: 3087 [2021-05-21 17:24:28,758 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 17:24:28,758 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 72.2ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:24:28,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 17:24:28,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 17:24:28,758 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) [2021-05-21 17:24:28,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 17:24:28,758 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2021-05-21 17:24:28,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:24:28,758 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 17:24:28,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 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) [2021-05-21 17:24:28,758 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 17:24:28,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 17:24:28,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-05-21 17:24:28,760 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 17:24:28,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 05:24:28 BasicIcfg [2021-05-21 17:24:28,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 17:24:28,762 INFO L168 Benchmark]: Toolchain (without parser) took 18595.05 ms. Allocated memory was 367.0 MB in the beginning and 10.2 GB in the end (delta: 9.8 GB). Free memory was 329.3 MB in the beginning and 8.5 GB in the end (delta: -8.1 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. [2021-05-21 17:24:28,762 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 367.0 MB. Free memory is still 347.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 17:24:28,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.52 ms. Allocated memory is still 367.0 MB. Free memory was 329.0 MB in the beginning and 328.7 MB in the end (delta: 356.6 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.0 GB. [2021-05-21 17:24:28,763 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.33 ms. Allocated memory is still 367.0 MB. Free memory was 328.7 MB in the beginning and 326.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:24:28,763 INFO L168 Benchmark]: Boogie Preprocessor took 15.03 ms. Allocated memory is still 367.0 MB. Free memory was 326.6 MB in the beginning and 325.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:24:28,763 INFO L168 Benchmark]: RCFGBuilder took 372.85 ms. Allocated memory is still 367.0 MB. Free memory was 325.5 MB in the beginning and 298.3 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-05-21 17:24:28,763 INFO L168 Benchmark]: TraceAbstraction took 17820.07 ms. Allocated memory was 367.0 MB in the beginning and 10.2 GB in the end (delta: 9.8 GB). Free memory was 297.2 MB in the beginning and 8.5 GB in the end (delta: -8.2 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. [2021-05-21 17:24:28,764 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 367.0 MB. Free memory is still 347.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 356.52 ms. Allocated memory is still 367.0 MB. Free memory was 329.0 MB in the beginning and 328.7 MB in the end (delta: 356.6 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.33 ms. Allocated memory is still 367.0 MB. Free memory was 328.7 MB in the beginning and 326.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.03 ms. Allocated memory is still 367.0 MB. Free memory was 326.6 MB in the beginning and 325.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 372.85 ms. Allocated memory is still 367.0 MB. Free memory was 325.5 MB in the beginning and 298.3 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 17820.07 ms. Allocated memory was 367.0 MB in the beginning and 10.2 GB in the end (delta: 9.8 GB). Free memory was 297.2 MB in the beginning and 8.5 GB in the end (delta: -8.2 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 9 procedures, 126 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17725.2ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 696.4ms, AutomataDifference: 5437.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4855.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1609 SDtfs, 2769 SDslu, 5755 SDs, 0 SdLazy, 557 SolverSat, 135 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 419.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1259.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51814occurred in iteration=0, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5401.0ms AutomataMinimizationTime, 12 MinimizatonAttempts, 29870 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.1ms SsaConstructionTime, 160.9ms SatisfiabilityAnalysisTime, 976.1ms InterpolantComputationTime, 745 NumberOfCodeBlocks, 745 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 733 ConstructedInterpolants, 0 QuantifiedInterpolants, 3263 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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! Received shutdown request...