/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 00:18:25,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 00:18:25,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 00:18:25,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 00:18:25,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 00:18:25,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 00:18:25,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 00:18:25,647 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 [2021-06-05 00:18:25,684 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 00:18:25,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 00:18:25,684 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 00:18:25,684 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 00:18:25,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 00:18:25,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 00:18:25,686 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 00:18:25,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 00:18:25,686 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 00:18:25,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 00:18:25,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 00:18:25,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 00:18:25,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 00:18:25,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 00:18:25,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 00:18:25,687 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 00:18:25,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 00:18:25,687 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 00:18:25,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 00:18:25,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 00:18:25,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 00:18:25,688 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 00:18:25,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 00:18:25,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:18:25,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 00:18:25,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 00:18:25,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 00:18:25,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 00:18:25,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 00:18:25,691 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 00:18:25,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 00:18:25,691 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 00:18:25,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 00:18:26,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 00:18:26,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 00:18:26,003 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 00:18:26,006 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 00:18:26,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i [2021-06-05 00:18:26,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a3e3f8f2/64567b93697e49ddab7b14d0e62db1c4/FLAG7f9282be5 [2021-06-05 00:18:26,819 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 00:18:26,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i [2021-06-05 00:18:26,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a3e3f8f2/64567b93697e49ddab7b14d0e62db1c4/FLAG7f9282be5 [2021-06-05 00:18:26,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a3e3f8f2/64567b93697e49ddab7b14d0e62db1c4 [2021-06-05 00:18:26,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 00:18:26,937 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 00:18:26,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 00:18:26,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 00:18:26,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 00:18:26,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:18:26" (1/1) ... [2021-06-05 00:18:26,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ec009ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:26, skipping insertion in model container [2021-06-05 00:18:26,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:18:26" (1/1) ... [2021-06-05 00:18:26,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 00:18:27,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 00:18:27,202 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/safe032_tso.opt.i[949,962] [2021-06-05 00:18:27,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:18:27,371 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 00:18:27,382 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/safe032_tso.opt.i[949,962] [2021-06-05 00:18:27,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:18:27,474 INFO L208 MainTranslator]: Completed translation [2021-06-05 00:18:27,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:27 WrapperNode [2021-06-05 00:18:27,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 00:18:27,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 00:18:27,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 00:18:27,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 00:18:27,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:27" (1/1) ... [2021-06-05 00:18:27,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:27" (1/1) ... [2021-06-05 00:18:27,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 00:18:27,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 00:18:27,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 00:18:27,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 00:18:27,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:27" (1/1) ... [2021-06-05 00:18:27,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:27" (1/1) ... [2021-06-05 00:18:27,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:27" (1/1) ... [2021-06-05 00:18:27,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:27" (1/1) ... [2021-06-05 00:18:27,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:27" (1/1) ... [2021-06-05 00:18:27,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:27" (1/1) ... [2021-06-05 00:18:27,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:27" (1/1) ... [2021-06-05 00:18:27,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 00:18:27,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 00:18:27,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 00:18:27,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 00:18:27,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:27" (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 [2021-06-05 00:18:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 00:18:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 00:18:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 00:18:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 00:18:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 00:18:27,624 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 00:18:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 00:18:27,624 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 00:18:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 00:18:27,624 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 00:18:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 00:18:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 00:18:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 00:18:27,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 00:18:27,626 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 00:18:28,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 00:18:28,000 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 00:18:28,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:18:28 BoogieIcfgContainer [2021-06-05 00:18:28,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 00:18:28,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 00:18:28,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 00:18:28,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 00:18:28,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:18:26" (1/3) ... [2021-06-05 00:18:28,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe71ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:18:28, skipping insertion in model container [2021-06-05 00:18:28,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:18:27" (2/3) ... [2021-06-05 00:18:28,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe71ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:18:28, skipping insertion in model container [2021-06-05 00:18:28,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:18:28" (3/3) ... [2021-06-05 00:18:28,008 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.opt.i [2021-06-05 00:18:28,013 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 00:18:28,013 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 00:18:28,013 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 00:18:28,014 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 00:18:28,039 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,039 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,040 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,040 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,040 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,040 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,042 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,042 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,043 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,043 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,044 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,044 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,049 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,049 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,049 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,050 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,050 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,050 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,050 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,051 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,053 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,054 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,059 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,059 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,061 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,061 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:18:28,065 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 00:18:28,084 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 00:18:28,110 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 00:18:28,110 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 00:18:28,110 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 00:18:28,110 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 00:18:28,110 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 00:18:28,111 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 00:18:28,111 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 00:18:28,111 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 00:18:28,125 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 83 transitions, 181 flow [2021-06-05 00:18:28,606 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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) [2021-06-05 00:18:28,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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) [2021-06-05 00:18:28,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 00:18:28,695 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:18:28,696 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:18:28,696 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:18:28,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:18:28,702 INFO L82 PathProgramCache]: Analyzing trace with hash 2015733592, now seen corresponding path program 1 times [2021-06-05 00:18:28,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:18:28,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131443717] [2021-06-05 00:18:28,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:18:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:18:29,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:18:29,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:18:29,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131443717] [2021-06-05 00:18:29,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131443717] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:18:29,095 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:18:29,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:18:29,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926095933] [2021-06-05 00:18:29,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:18:29,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:18:29,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:18:29,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:18:29,134 INFO L87 Difference]: Start difference. First operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-06-05 00:18:29,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:18:29,552 INFO L93 Difference]: Finished difference Result 12918 states and 44685 transitions. [2021-06-05 00:18:29,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:18:29,554 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2021-06-05 00:18:29,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:18:29,587 INFO L225 Difference]: With dead ends: 12918 [2021-06-05 00:18:29,587 INFO L226 Difference]: Without dead ends: 3473 [2021-06-05 00:18:29,589 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 248.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:18:29,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3473 states. [2021-06-05 00:18:29,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3473 to 3281. [2021-06-05 00:18:29,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3281 states, 3280 states have (on average 3.165243902439024) internal successors, (10382), 3280 states have internal predecessors, (10382), 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) [2021-06-05 00:18:29,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3281 states to 3281 states and 10382 transitions. [2021-06-05 00:18:29,813 INFO L78 Accepts]: Start accepts. Automaton has 3281 states and 10382 transitions. Word has length 48 [2021-06-05 00:18:29,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:18:29,817 INFO L482 AbstractCegarLoop]: Abstraction has 3281 states and 10382 transitions. [2021-06-05 00:18:29,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-06-05 00:18:29,818 INFO L276 IsEmpty]: Start isEmpty. Operand 3281 states and 10382 transitions. [2021-06-05 00:18:29,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 00:18:29,830 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:18:29,830 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:18:29,831 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 00:18:29,831 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:18:29,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:18:29,833 INFO L82 PathProgramCache]: Analyzing trace with hash -621688178, now seen corresponding path program 1 times [2021-06-05 00:18:29,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:18:29,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694660009] [2021-06-05 00:18:29,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:18:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:18:29,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:18:29,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:18:29,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694660009] [2021-06-05 00:18:29,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694660009] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:18:29,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:18:29,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:18:29,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863543481] [2021-06-05 00:18:29,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:18:29,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:18:29,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:18:29,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:18:29,978 INFO L87 Difference]: Start difference. First operand 3281 states and 10382 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-06-05 00:18:30,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:18:30,286 INFO L93 Difference]: Finished difference Result 4817 states and 15152 transitions. [2021-06-05 00:18:30,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:18:30,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-06-05 00:18:30,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:18:30,310 INFO L225 Difference]: With dead ends: 4817 [2021-06-05 00:18:30,310 INFO L226 Difference]: Without dead ends: 3073 [2021-06-05 00:18:30,311 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 174.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:18:30,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3073 states. [2021-06-05 00:18:30,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3073 to 2789. [2021-06-05 00:18:30,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2789 states, 2788 states have (on average 3.1251793400286942) internal successors, (8713), 2788 states have internal predecessors, (8713), 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) [2021-06-05 00:18:30,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 8713 transitions. [2021-06-05 00:18:30,426 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 8713 transitions. Word has length 53 [2021-06-05 00:18:30,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:18:30,429 INFO L482 AbstractCegarLoop]: Abstraction has 2789 states and 8713 transitions. [2021-06-05 00:18:30,429 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-06-05 00:18:30,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 8713 transitions. [2021-06-05 00:18:30,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 00:18:30,439 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:18:30,439 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:18:30,440 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 00:18:30,440 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:18:30,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:18:30,447 INFO L82 PathProgramCache]: Analyzing trace with hash 495337300, now seen corresponding path program 1 times [2021-06-05 00:18:30,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:18:30,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193381710] [2021-06-05 00:18:30,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:18:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:18:30,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:18:30,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:18:30,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193381710] [2021-06-05 00:18:30,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193381710] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:18:30,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:18:30,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:18:30,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300395283] [2021-06-05 00:18:30,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:18:30,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:18:30,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:18:30,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:18:30,613 INFO L87 Difference]: Start difference. First operand 2789 states and 8713 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-06-05 00:18:30,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:18:30,829 INFO L93 Difference]: Finished difference Result 3480 states and 10901 transitions. [2021-06-05 00:18:30,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:18:30,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-06-05 00:18:30,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:18:30,846 INFO L225 Difference]: With dead ends: 3480 [2021-06-05 00:18:30,846 INFO L226 Difference]: Without dead ends: 2856 [2021-06-05 00:18:30,847 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 175.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:18:30,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2021-06-05 00:18:30,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2485. [2021-06-05 00:18:30,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 2484 states have (on average 3.0841384863123995) internal successors, (7661), 2484 states have internal predecessors, (7661), 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) [2021-06-05 00:18:30,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 7661 transitions. [2021-06-05 00:18:30,928 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 7661 transitions. Word has length 53 [2021-06-05 00:18:30,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:18:30,930 INFO L482 AbstractCegarLoop]: Abstraction has 2485 states and 7661 transitions. [2021-06-05 00:18:30,930 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-06-05 00:18:30,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 7661 transitions. [2021-06-05 00:18:30,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 00:18:30,936 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:18:30,936 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:18:30,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 00:18:30,936 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:18:30,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:18:30,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1115610283, now seen corresponding path program 1 times [2021-06-05 00:18:30,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:18:30,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536592655] [2021-06-05 00:18:30,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:18:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:18:31,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:18:31,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:18:31,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536592655] [2021-06-05 00:18:31,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536592655] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:18:31,071 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:18:31,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:18:31,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614777317] [2021-06-05 00:18:31,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:18:31,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:18:31,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:18:31,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:18:31,076 INFO L87 Difference]: Start difference. First operand 2485 states and 7661 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:31,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:18:31,200 INFO L93 Difference]: Finished difference Result 2982 states and 9073 transitions. [2021-06-05 00:18:31,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:18:31,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-06-05 00:18:31,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:18:31,212 INFO L225 Difference]: With dead ends: 2982 [2021-06-05 00:18:31,213 INFO L226 Difference]: Without dead ends: 2246 [2021-06-05 00:18:31,213 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 99.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:18:31,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2021-06-05 00:18:31,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2246. [2021-06-05 00:18:31,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2246 states, 2245 states have (on average 3.02271714922049) internal successors, (6786), 2245 states have internal predecessors, (6786), 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) [2021-06-05 00:18:31,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 6786 transitions. [2021-06-05 00:18:31,272 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 6786 transitions. Word has length 55 [2021-06-05 00:18:31,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:18:31,274 INFO L482 AbstractCegarLoop]: Abstraction has 2246 states and 6786 transitions. [2021-06-05 00:18:31,274 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:18:31,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 6786 transitions. [2021-06-05 00:18:31,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 00:18:31,280 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:18:31,280 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:18:31,281 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 00:18:31,284 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:18:31,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:18:31,284 INFO L82 PathProgramCache]: Analyzing trace with hash 19651416, now seen corresponding path program 1 times [2021-06-05 00:18:31,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:18:31,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235018876] [2021-06-05 00:18:31,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:18:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:18:31,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:18:31,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:18:31,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235018876] [2021-06-05 00:18:31,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235018876] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:18:31,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:18:31,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:18:31,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484714330] [2021-06-05 00:18:31,398 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:18:31,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:18:31,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:18:31,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:18:31,399 INFO L87 Difference]: Start difference. First operand 2246 states and 6786 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2021-06-05 00:18:31,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:18:31,545 INFO L93 Difference]: Finished difference Result 2177 states and 6401 transitions. [2021-06-05 00:18:31,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:18:31,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2021-06-05 00:18:31,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:18:31,553 INFO L225 Difference]: With dead ends: 2177 [2021-06-05 00:18:31,553 INFO L226 Difference]: Without dead ends: 1601 [2021-06-05 00:18:31,554 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 122.4ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:18:31,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2021-06-05 00:18:31,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2021-06-05 00:18:31,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1600 states have (on average 2.88125) internal successors, (4610), 1600 states have internal predecessors, (4610), 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) [2021-06-05 00:18:31,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 4610 transitions. [2021-06-05 00:18:31,598 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 4610 transitions. Word has length 56 [2021-06-05 00:18:31,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:18:31,598 INFO L482 AbstractCegarLoop]: Abstraction has 1601 states and 4610 transitions. [2021-06-05 00:18:31,598 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2021-06-05 00:18:31,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 4610 transitions. [2021-06-05 00:18:31,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 00:18:31,602 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:18:31,602 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:18:31,602 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 00:18:31,602 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:18:31,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:18:31,603 INFO L82 PathProgramCache]: Analyzing trace with hash -379824599, now seen corresponding path program 1 times [2021-06-05 00:18:31,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:18:31,603 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844981920] [2021-06-05 00:18:31,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:18:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:18:31,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:18:31,757 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:18:31,757 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844981920] [2021-06-05 00:18:31,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844981920] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:18:31,758 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:18:31,758 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:18:31,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939877205] [2021-06-05 00:18:31,759 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:18:31,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:18:31,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:18:31,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:18:31,761 INFO L87 Difference]: Start difference. First operand 1601 states and 4610 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2021-06-05 00:18:31,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:18:31,854 INFO L93 Difference]: Finished difference Result 1169 states and 3287 transitions. [2021-06-05 00:18:31,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 00:18:31,854 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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 58 [2021-06-05 00:18:31,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:18:31,855 INFO L225 Difference]: With dead ends: 1169 [2021-06-05 00:18:31,855 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 00:18:31,856 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 97.5ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:18:31,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 00:18:31,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 00:18:31,856 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) [2021-06-05 00:18:31,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 00:18:31,856 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-06-05 00:18:31,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:18:31,856 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 00:18:31,857 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2021-06-05 00:18:31,857 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 00:18:31,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 00:18:31,857 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 00:18:31,858 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 00:18:31,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:18:31 BasicIcfg [2021-06-05 00:18:31,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 00:18:31,860 INFO L168 Benchmark]: Toolchain (without parser) took 4923.38 ms. Allocated memory was 354.4 MB in the beginning and 824.2 MB in the end (delta: 469.8 MB). Free memory was 317.3 MB in the beginning and 701.3 MB in the end (delta: -384.0 MB). Peak memory consumption was 87.4 MB. Max. memory is 16.0 GB. [2021-06-05 00:18:31,861 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 354.4 MB. Free memory was 335.4 MB in the beginning and 335.3 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:18:31,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.00 ms. Allocated memory is still 354.4 MB. Free memory was 317.0 MB in the beginning and 311.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2021-06-05 00:18:31,861 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.47 ms. Allocated memory is still 354.4 MB. Free memory was 311.0 MB in the beginning and 309.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:18:31,862 INFO L168 Benchmark]: Boogie Preprocessor took 19.62 ms. Allocated memory is still 354.4 MB. Free memory was 309.0 MB in the beginning and 307.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:18:31,862 INFO L168 Benchmark]: RCFGBuilder took 446.71 ms. Allocated memory is still 354.4 MB. Free memory was 307.9 MB in the beginning and 282.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:18:31,862 INFO L168 Benchmark]: TraceAbstraction took 3856.75 ms. Allocated memory was 354.4 MB in the beginning and 824.2 MB in the end (delta: 469.8 MB). Free memory was 282.8 MB in the beginning and 701.3 MB in the end (delta: -418.5 MB). Peak memory consumption was 53.4 MB. Max. memory is 16.0 GB. [2021-06-05 00:18:31,875 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 354.4 MB. Free memory was 335.4 MB in the beginning and 335.3 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 536.00 ms. Allocated memory is still 354.4 MB. Free memory was 317.0 MB in the beginning and 311.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 58.47 ms. Allocated memory is still 354.4 MB. Free memory was 311.0 MB in the beginning and 309.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.62 ms. Allocated memory is still 354.4 MB. Free memory was 309.0 MB in the beginning and 307.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 446.71 ms. Allocated memory is still 354.4 MB. Free memory was 307.9 MB in the beginning and 282.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3856.75 ms. Allocated memory was 354.4 MB in the beginning and 824.2 MB in the end (delta: 469.8 MB). Free memory was 282.8 MB in the beginning and 701.3 MB in the end (delta: -418.5 MB). Peak memory consumption was 53.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3749.6ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 126.1ms, AutomataDifference: 1455.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 495.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 623 SDtfs, 1220 SDslu, 2182 SDs, 0 SdLazy, 291 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 279.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 918.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9331occurred in iteration=0, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 512.9ms AutomataMinimizationTime, 6 MinimizatonAttempts, 847 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.3ms SsaConstructionTime, 179.4ms SatisfiabilityAnalysisTime, 778.2ms InterpolantComputationTime, 323 NumberOfCodeBlocks, 323 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 317 ConstructedInterpolants, 0 QuantifiedInterpolants, 1573 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...