/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 17:24:50,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 17:24:50,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 17:24:50,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-12 17:24:50,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 17:24:50,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 17:24:50,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 17:24:50,803 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 [2021-06-12 17:24:50,839 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 17:24:50,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 17:24:50,840 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 17:24:50,840 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 17:24:50,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 17:24:50,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 17:24:50,843 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 17:24:50,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 17:24:50,843 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 17:24:50,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 17:24:50,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 17:24:50,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 17:24:50,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 17:24:50,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 17:24:50,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 17:24:50,845 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 17:24:50,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 17:24:50,845 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 17:24:50,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 17:24:50,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 17:24:50,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 17:24:50,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 17:24:50,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 17:24:50,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 17:24:50,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 17:24:50,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 17:24:50,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 17:24:50,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 17:24:50,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 17:24:50,847 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 17:24:50,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 17:24:50,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 17:24:51,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 17:24:51,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 17:24:51,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 17:24:51,210 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 17:24:51,212 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 17:24:51,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2021-06-12 17:24:51,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86383c45f/4e1b19c7d7a4470b910bba47480fb169/FLAGe6fc556b1 [2021-06-12 17:24:51,875 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 17:24:51,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2021-06-12 17:24:51,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86383c45f/4e1b19c7d7a4470b910bba47480fb169/FLAGe6fc556b1 [2021-06-12 17:24:52,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86383c45f/4e1b19c7d7a4470b910bba47480fb169 [2021-06-12 17:24:52,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 17:24:52,290 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 17:24:52,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 17:24:52,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 17:24:52,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 17:24:52,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:24:52" (1/1) ... [2021-06-12 17:24:52,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f90dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:24:52, skipping insertion in model container [2021-06-12 17:24:52,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:24:52" (1/1) ... [2021-06-12 17:24:52,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 17:24:52,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 17:24:52,472 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/thin002_tso.oepc.i[950,963] [2021-06-12 17:24:52,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:24:52,682 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 17:24:52,691 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/thin002_tso.oepc.i[950,963] [2021-06-12 17:24:52,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:24:52,810 INFO L208 MainTranslator]: Completed translation [2021-06-12 17:24:52,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:24:52 WrapperNode [2021-06-12 17:24:52,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 17:24:52,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 17:24:52,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 17:24:52,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 17:24:52,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:24:52" (1/1) ... [2021-06-12 17:24:52,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:24:52" (1/1) ... [2021-06-12 17:24:52,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 17:24:52,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 17:24:52,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 17:24:52,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 17:24:52,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:24:52" (1/1) ... [2021-06-12 17:24:52,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:24:52" (1/1) ... [2021-06-12 17:24:52,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:24:52" (1/1) ... [2021-06-12 17:24:52,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:24:52" (1/1) ... [2021-06-12 17:24:52,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:24:52" (1/1) ... [2021-06-12 17:24:52,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:24:52" (1/1) ... [2021-06-12 17:24:52,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:24:52" (1/1) ... [2021-06-12 17:24:52,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 17:24:52,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 17:24:52,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 17:24:52,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 17:24:52,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:24:52" (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 [2021-06-12 17:24:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 17:24:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-12 17:24:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 17:24:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 17:24:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-12 17:24:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-12 17:24:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-12 17:24:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-12 17:24:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-12 17:24:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-12 17:24:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-12 17:24:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-12 17:24:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 17:24:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-12 17:24:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 17:24:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 17:24:53,000 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 17:24:53,414 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 17:24:53,422 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-12 17:24:53,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:24:53 BoogieIcfgContainer [2021-06-12 17:24:53,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 17:24:53,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 17:24:53,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 17:24:53,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 17:24:53,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 05:24:52" (1/3) ... [2021-06-12 17:24:53,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fbb7d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:24:53, skipping insertion in model container [2021-06-12 17:24:53,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:24:52" (2/3) ... [2021-06-12 17:24:53,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fbb7d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:24:53, skipping insertion in model container [2021-06-12 17:24:53,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:24:53" (3/3) ... [2021-06-12 17:24:53,447 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2021-06-12 17:24:53,457 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 17:24:53,458 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 17:24:53,458 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-12 17:24:53,459 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 17:24:53,515 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,516 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,516 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,517 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,517 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,518 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,518 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,519 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,519 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,520 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,520 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,520 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,520 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,520 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,520 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,520 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,521 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,522 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,522 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,522 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,522 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,522 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,522 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,522 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,523 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,523 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,523 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,523 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,523 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,537 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,537 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,537 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,538 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,539 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,540 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,543 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,543 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:24:53,546 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-12 17:24:53,566 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-12 17:24:53,594 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 17:24:53,594 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 17:24:53,594 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 17:24:53,594 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 17:24:53,594 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 17:24:53,594 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 17:24:53,594 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 17:24:53,594 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 17:24:53,608 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 103 transitions, 226 flow [2021-06-12 17:25:04,623 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 70046 states, 70044 states have (on average 4.422177488435841) internal successors, (309747), 70045 states have internal predecessors, (309747), 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) [2021-06-12 17:25:04,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 70046 states, 70044 states have (on average 4.422177488435841) internal successors, (309747), 70045 states have internal predecessors, (309747), 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) [2021-06-12 17:25:04,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-12 17:25:04,986 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:04,987 INFO L472 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] [2021-06-12 17:25:04,988 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:04,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:04,993 INFO L82 PathProgramCache]: Analyzing trace with hash -190192830, now seen corresponding path program 1 times [2021-06-12 17:25:05,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:05,002 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115264394] [2021-06-12 17:25:05,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:05,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:05,442 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:05,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115264394] [2021-06-12 17:25:05,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115264394] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:05,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:05,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:25:05,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825518725] [2021-06-12 17:25:05,447 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:25:05,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:05,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:25:05,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:25:05,614 INFO L87 Difference]: Start difference. First operand has 70046 states, 70044 states have (on average 4.422177488435841) internal successors, (309747), 70045 states have internal predecessors, (309747), 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 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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) [2021-06-12 17:25:07,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:07,087 INFO L93 Difference]: Finished difference Result 105773 states and 460615 transitions. [2021-06-12 17:25:07,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:25:07,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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 [2021-06-12 17:25:07,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:07,702 INFO L225 Difference]: With dead ends: 105773 [2021-06-12 17:25:07,703 INFO L226 Difference]: Without dead ends: 36336 [2021-06-12 17:25:07,704 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 140.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:25:08,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36336 states. [2021-06-12 17:25:09,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36336 to 36336. [2021-06-12 17:25:09,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36336 states, 36335 states have (on average 4.282454933259943) internal successors, (155603), 36335 states have internal predecessors, (155603), 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) [2021-06-12 17:25:10,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36336 states to 36336 states and 155603 transitions. [2021-06-12 17:25:10,066 INFO L78 Accepts]: Start accepts. Automaton has 36336 states and 155603 transitions. Word has length 59 [2021-06-12 17:25:10,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:10,067 INFO L482 AbstractCegarLoop]: Abstraction has 36336 states and 155603 transitions. [2021-06-12 17:25:10,068 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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) [2021-06-12 17:25:10,068 INFO L276 IsEmpty]: Start isEmpty. Operand 36336 states and 155603 transitions. [2021-06-12 17:25:10,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 17:25:10,125 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:10,125 INFO L472 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] [2021-06-12 17:25:10,125 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 17:25:10,126 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:10,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:10,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1956318659, now seen corresponding path program 1 times [2021-06-12 17:25:10,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:10,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461387367] [2021-06-12 17:25:10,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:10,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:10,449 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:10,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461387367] [2021-06-12 17:25:10,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461387367] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:10,449 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:10,449 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:25:10,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906389486] [2021-06-12 17:25:10,452 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:25:10,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:10,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:25:10,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:25:10,454 INFO L87 Difference]: Start difference. First operand 36336 states and 155603 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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) [2021-06-12 17:25:11,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:11,128 INFO L93 Difference]: Finished difference Result 41696 states and 177036 transitions. [2021-06-12 17:25:11,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:25:11,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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 [2021-06-12 17:25:11,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:11,295 INFO L225 Difference]: With dead ends: 41696 [2021-06-12 17:25:11,295 INFO L226 Difference]: Without dead ends: 32316 [2021-06-12 17:25:11,297 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 113.7ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-12 17:25:11,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32316 states. [2021-06-12 17:25:12,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32316 to 32316. [2021-06-12 17:25:12,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32316 states, 32315 states have (on average 4.247779668884419) internal successors, (137267), 32315 states have internal predecessors, (137267), 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) [2021-06-12 17:25:12,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32316 states to 32316 states and 137267 transitions. [2021-06-12 17:25:12,877 INFO L78 Accepts]: Start accepts. Automaton has 32316 states and 137267 transitions. Word has length 61 [2021-06-12 17:25:12,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:12,877 INFO L482 AbstractCegarLoop]: Abstraction has 32316 states and 137267 transitions. [2021-06-12 17:25:12,878 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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) [2021-06-12 17:25:12,882 INFO L276 IsEmpty]: Start isEmpty. Operand 32316 states and 137267 transitions. [2021-06-12 17:25:12,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 17:25:12,943 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:12,943 INFO L472 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] [2021-06-12 17:25:12,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 17:25:12,944 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:12,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:12,951 INFO L82 PathProgramCache]: Analyzing trace with hash 197320963, now seen corresponding path program 1 times [2021-06-12 17:25:12,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:12,952 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962236476] [2021-06-12 17:25:12,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:13,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:13,120 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:13,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962236476] [2021-06-12 17:25:13,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962236476] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:13,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:13,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:25:13,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942066271] [2021-06-12 17:25:13,122 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:25:13,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:13,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:25:13,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:25:13,124 INFO L87 Difference]: Start difference. First operand 32316 states and 137267 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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) [2021-06-12 17:25:13,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:13,721 INFO L93 Difference]: Finished difference Result 36236 states and 152758 transitions. [2021-06-12 17:25:13,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:25:13,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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 [2021-06-12 17:25:13,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:13,991 INFO L225 Difference]: With dead ends: 36236 [2021-06-12 17:25:13,991 INFO L226 Difference]: Without dead ends: 29376 [2021-06-12 17:25:13,992 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 106.4ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-12 17:25:14,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29376 states. [2021-06-12 17:25:15,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29376 to 29376. [2021-06-12 17:25:15,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29376 states, 29375 states have (on average 4.221106382978723) internal successors, (123995), 29375 states have internal predecessors, (123995), 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) [2021-06-12 17:25:15,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29376 states to 29376 states and 123995 transitions. [2021-06-12 17:25:15,149 INFO L78 Accepts]: Start accepts. Automaton has 29376 states and 123995 transitions. Word has length 61 [2021-06-12 17:25:15,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:15,149 INFO L482 AbstractCegarLoop]: Abstraction has 29376 states and 123995 transitions. [2021-06-12 17:25:15,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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) [2021-06-12 17:25:15,149 INFO L276 IsEmpty]: Start isEmpty. Operand 29376 states and 123995 transitions. [2021-06-12 17:25:15,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-12 17:25:15,187 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:15,187 INFO L472 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] [2021-06-12 17:25:15,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 17:25:15,187 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:15,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:15,188 INFO L82 PathProgramCache]: Analyzing trace with hash -945645086, now seen corresponding path program 1 times [2021-06-12 17:25:15,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:15,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262365979] [2021-06-12 17:25:15,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:15,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:15,277 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:15,278 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262365979] [2021-06-12 17:25:15,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262365979] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:15,278 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:15,278 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:25:15,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113915029] [2021-06-12 17:25:15,278 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:25:15,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:15,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:25:15,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:25:15,279 INFO L87 Difference]: Start difference. First operand 29376 states and 123995 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) [2021-06-12 17:25:15,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:15,781 INFO L93 Difference]: Finished difference Result 32176 states and 134900 transitions. [2021-06-12 17:25:15,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:25:15,785 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 [2021-06-12 17:25:15,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:15,886 INFO L225 Difference]: With dead ends: 32176 [2021-06-12 17:25:15,886 INFO L226 Difference]: Without dead ends: 27276 [2021-06-12 17:25:15,886 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 99.4ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-12 17:25:16,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27276 states. [2021-06-12 17:25:16,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27276 to 27276. [2021-06-12 17:25:16,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27276 states, 27275 states have (on average 4.2029330889092575) internal successors, (114635), 27275 states have internal predecessors, (114635), 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) [2021-06-12 17:25:16,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27276 states to 27276 states and 114635 transitions. [2021-06-12 17:25:16,905 INFO L78 Accepts]: Start accepts. Automaton has 27276 states and 114635 transitions. Word has length 63 [2021-06-12 17:25:16,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:16,908 INFO L482 AbstractCegarLoop]: Abstraction has 27276 states and 114635 transitions. [2021-06-12 17:25:16,908 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) [2021-06-12 17:25:16,908 INFO L276 IsEmpty]: Start isEmpty. Operand 27276 states and 114635 transitions. [2021-06-12 17:25:16,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-12 17:25:16,960 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:16,960 INFO L472 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] [2021-06-12 17:25:16,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 17:25:16,961 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:16,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:16,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1040751587, now seen corresponding path program 1 times [2021-06-12 17:25:16,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:16,961 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294965522] [2021-06-12 17:25:16,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:17,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:17,100 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:17,100 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294965522] [2021-06-12 17:25:17,100 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294965522] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:17,100 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:17,101 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:25:17,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696628759] [2021-06-12 17:25:17,101 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:25:17,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:17,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:25:17,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:25:17,102 INFO L87 Difference]: Start difference. First operand 27276 states and 114635 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) [2021-06-12 17:25:17,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:17,413 INFO L93 Difference]: Finished difference Result 37566 states and 157307 transitions. [2021-06-12 17:25:17,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:25:17,414 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 [2021-06-12 17:25:17,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:17,681 INFO L225 Difference]: With dead ends: 37566 [2021-06-12 17:25:17,682 INFO L226 Difference]: Without dead ends: 18351 [2021-06-12 17:25:17,682 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 141.5ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:25:17,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18351 states. [2021-06-12 17:25:18,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18351 to 18351. [2021-06-12 17:25:18,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18351 states, 18350 states have (on average 4.132425068119891) internal successors, (75830), 18350 states have internal predecessors, (75830), 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) [2021-06-12 17:25:18,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18351 states to 18351 states and 75830 transitions. [2021-06-12 17:25:18,276 INFO L78 Accepts]: Start accepts. Automaton has 18351 states and 75830 transitions. Word has length 65 [2021-06-12 17:25:18,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:18,276 INFO L482 AbstractCegarLoop]: Abstraction has 18351 states and 75830 transitions. [2021-06-12 17:25:18,276 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) [2021-06-12 17:25:18,276 INFO L276 IsEmpty]: Start isEmpty. Operand 18351 states and 75830 transitions. [2021-06-12 17:25:18,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-12 17:25:18,305 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:18,305 INFO L472 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] [2021-06-12 17:25:18,305 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 17:25:18,305 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:18,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:18,305 INFO L82 PathProgramCache]: Analyzing trace with hash -606557909, now seen corresponding path program 1 times [2021-06-12 17:25:18,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:18,306 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205108430] [2021-06-12 17:25:18,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:18,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:18,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:18,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205108430] [2021-06-12 17:25:18,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205108430] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:18,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:18,458 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:25:18,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533301047] [2021-06-12 17:25:18,458 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:25:18,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:18,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:25:18,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:25:18,459 INFO L87 Difference]: Start difference. First operand 18351 states and 75830 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2021-06-12 17:25:18,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:18,920 INFO L93 Difference]: Finished difference Result 32701 states and 134385 transitions. [2021-06-12 17:25:18,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:25:18,920 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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 66 [2021-06-12 17:25:18,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:18,990 INFO L225 Difference]: With dead ends: 32701 [2021-06-12 17:25:18,990 INFO L226 Difference]: Without dead ends: 23901 [2021-06-12 17:25:18,990 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 253.8ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:25:19,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23901 states. [2021-06-12 17:25:19,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23901 to 19951. [2021-06-12 17:25:19,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19951 states, 19950 states have (on average 4.131829573934837) internal successors, (82430), 19950 states have internal predecessors, (82430), 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) [2021-06-12 17:25:19,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19951 states to 19951 states and 82430 transitions. [2021-06-12 17:25:19,825 INFO L78 Accepts]: Start accepts. Automaton has 19951 states and 82430 transitions. Word has length 66 [2021-06-12 17:25:19,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:19,829 INFO L482 AbstractCegarLoop]: Abstraction has 19951 states and 82430 transitions. [2021-06-12 17:25:19,829 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2021-06-12 17:25:19,829 INFO L276 IsEmpty]: Start isEmpty. Operand 19951 states and 82430 transitions. [2021-06-12 17:25:20,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-12 17:25:20,080 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:20,080 INFO L472 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] [2021-06-12 17:25:20,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 17:25:20,080 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:20,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:20,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1792918567, now seen corresponding path program 2 times [2021-06-12 17:25:20,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:20,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785730989] [2021-06-12 17:25:20,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:20,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:20,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:20,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785730989] [2021-06-12 17:25:20,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785730989] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:20,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:20,222 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:25:20,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348792769] [2021-06-12 17:25:20,223 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:25:20,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:20,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:25:20,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:25:20,224 INFO L87 Difference]: Start difference. First operand 19951 states and 82430 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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) [2021-06-12 17:25:20,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:20,488 INFO L93 Difference]: Finished difference Result 26671 states and 109066 transitions. [2021-06-12 17:25:20,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-12 17:25:20,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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 66 [2021-06-12 17:25:20,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:20,521 INFO L225 Difference]: With dead ends: 26671 [2021-06-12 17:25:20,521 INFO L226 Difference]: Without dead ends: 12261 [2021-06-12 17:25:20,521 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 110.5ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:25:20,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12261 states. [2021-06-12 17:25:20,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12261 to 12261. [2021-06-12 17:25:20,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12261 states, 12260 states have (on average 4.001223491027733) internal successors, (49055), 12260 states have internal predecessors, (49055), 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) [2021-06-12 17:25:20,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12261 states to 12261 states and 49055 transitions. [2021-06-12 17:25:20,944 INFO L78 Accepts]: Start accepts. Automaton has 12261 states and 49055 transitions. Word has length 66 [2021-06-12 17:25:20,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:20,944 INFO L482 AbstractCegarLoop]: Abstraction has 12261 states and 49055 transitions. [2021-06-12 17:25:20,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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) [2021-06-12 17:25:20,945 INFO L276 IsEmpty]: Start isEmpty. Operand 12261 states and 49055 transitions. [2021-06-12 17:25:20,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-12 17:25:20,964 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:20,964 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:20,964 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-12 17:25:20,964 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:20,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:20,964 INFO L82 PathProgramCache]: Analyzing trace with hash 821825292, now seen corresponding path program 1 times [2021-06-12 17:25:20,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:20,965 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673245100] [2021-06-12 17:25:20,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:21,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:21,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:21,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673245100] [2021-06-12 17:25:21,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673245100] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:21,073 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:21,073 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:25:21,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334531234] [2021-06-12 17:25:21,076 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:25:21,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:21,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:25:21,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:25:21,077 INFO L87 Difference]: Start difference. First operand 12261 states and 49055 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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) [2021-06-12 17:25:21,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:21,270 INFO L93 Difference]: Finished difference Result 17221 states and 68815 transitions. [2021-06-12 17:25:21,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-12 17:25:21,271 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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 69 [2021-06-12 17:25:21,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:21,291 INFO L225 Difference]: With dead ends: 17221 [2021-06-12 17:25:21,292 INFO L226 Difference]: Without dead ends: 6971 [2021-06-12 17:25:21,292 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 107.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:25:21,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6971 states. [2021-06-12 17:25:21,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6971 to 6971. [2021-06-12 17:25:21,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6971 states, 6970 states have (on average 3.9176470588235293) internal successors, (27306), 6970 states have internal predecessors, (27306), 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) [2021-06-12 17:25:21,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6971 states to 6971 states and 27306 transitions. [2021-06-12 17:25:21,422 INFO L78 Accepts]: Start accepts. Automaton has 6971 states and 27306 transitions. Word has length 69 [2021-06-12 17:25:21,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:21,422 INFO L482 AbstractCegarLoop]: Abstraction has 6971 states and 27306 transitions. [2021-06-12 17:25:21,422 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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) [2021-06-12 17:25:21,422 INFO L276 IsEmpty]: Start isEmpty. Operand 6971 states and 27306 transitions. [2021-06-12 17:25:21,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-12 17:25:21,559 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:21,560 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:21,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-12 17:25:21,560 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:21,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:21,560 INFO L82 PathProgramCache]: Analyzing trace with hash 461811338, now seen corresponding path program 1 times [2021-06-12 17:25:21,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:21,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218116840] [2021-06-12 17:25:21,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:21,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:21,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:21,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218116840] [2021-06-12 17:25:21,685 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218116840] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:21,685 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:21,686 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:25:21,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799748403] [2021-06-12 17:25:21,686 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:25:21,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:21,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:25:21,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:25:21,687 INFO L87 Difference]: Start difference. First operand 6971 states and 27306 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:21,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:21,834 INFO L93 Difference]: Finished difference Result 6331 states and 24714 transitions. [2021-06-12 17:25:21,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:25:21,835 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-06-12 17:25:21,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:21,835 INFO L225 Difference]: With dead ends: 6331 [2021-06-12 17:25:21,835 INFO L226 Difference]: Without dead ends: 0 [2021-06-12 17:25:21,835 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 115.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-12 17:25:21,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-12 17:25:21,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-12 17:25:21,836 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) [2021-06-12 17:25:21,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-12 17:25:21,836 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-06-12 17:25:21,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:21,836 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-12 17:25:21,836 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:21,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-12 17:25:21,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 17:25:21,837 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-12 17:25:21,839 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-12 17:25:21,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.06 05:25:21 BasicIcfg [2021-06-12 17:25:21,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-12 17:25:21,842 INFO L168 Benchmark]: Toolchain (without parser) took 29551.98 ms. Allocated memory was 198.2 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 161.2 MB in the beginning and 4.9 GB in the end (delta: -4.7 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. [2021-06-12 17:25:21,842 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 198.2 MB. Free memory is still 179.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 17:25:21,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 514.76 ms. Allocated memory is still 198.2 MB. Free memory was 161.0 MB in the beginning and 159.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-12 17:25:21,845 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.15 ms. Allocated memory is still 198.2 MB. Free memory was 159.6 MB in the beginning and 157.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:25:21,845 INFO L168 Benchmark]: Boogie Preprocessor took 33.72 ms. Allocated memory is still 198.2 MB. Free memory was 157.5 MB in the beginning and 156.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-12 17:25:21,846 INFO L168 Benchmark]: RCFGBuilder took 523.03 ms. Allocated memory is still 198.2 MB. Free memory was 156.5 MB in the beginning and 129.8 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-06-12 17:25:21,846 INFO L168 Benchmark]: TraceAbstraction took 28411.31 ms. Allocated memory was 198.2 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 129.2 MB in the beginning and 4.9 GB in the end (delta: -4.8 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. [2021-06-12 17:25:21,851 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 198.2 MB. Free memory is still 179.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 514.76 ms. Allocated memory is still 198.2 MB. Free memory was 161.0 MB in the beginning and 159.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.15 ms. Allocated memory is still 198.2 MB. Free memory was 159.6 MB in the beginning and 157.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.72 ms. Allocated memory is still 198.2 MB. Free memory was 157.5 MB in the beginning and 156.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 523.03 ms. Allocated memory is still 198.2 MB. Free memory was 156.5 MB in the beginning and 129.8 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 28411.31 ms. Allocated memory was 198.2 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 129.2 MB in the beginning and 4.9 GB in the end (delta: -4.8 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 134 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28245.8ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 1005.9ms, AutomataDifference: 6352.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11028.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1245 SDtfs, 2189 SDslu, 4006 SDs, 0 SdLazy, 279 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 286.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1190.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=70046occurred in iteration=0, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8085.4ms AutomataMinimizationTime, 9 MinimizatonAttempts, 3950 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 44.7ms SsaConstructionTime, 399.3ms SatisfiabilityAnalysisTime, 1106.0ms InterpolantComputationTime, 580 NumberOfCodeBlocks, 580 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 571 ConstructedInterpolants, 0 QuantifiedInterpolants, 2757 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...