/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:52:33,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:52:33,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:52:33,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:52:33,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:52:33,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:52:33,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:52:33,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:52:33,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:52:33,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:52:33,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:52:33,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:52:33,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:52:33,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:52:33,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:52:33,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:52:33,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:52:33,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:52:33,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:52:33,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:52:33,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:52:33,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:52:33,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:52:33,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:52:33,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:52:33,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:52:33,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:52:33,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:52:33,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:52:33,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:52:33,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:52:33,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:52:33,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:52:33,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:52:33,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:52:33,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:52:33,659 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-05 22:52:33,681 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:52:33,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:52:33,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:52:33,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:52:33,683 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:52:33,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:52:33,683 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:52:33,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:52:33,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:52:33,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:52:33,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:52:33,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:52:33,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:52:33,685 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:52:33,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:52:33,685 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:52:33,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:52:33,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:52:33,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:52:33,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:52:33,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:52:33,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:52:33,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:52:33,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:52:33,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:52:33,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:52:33,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:52:33,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:52:33,688 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:52:33,688 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:52:33,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:52:34,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:52:34,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:52:34,010 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:52:34,010 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:52:34,011 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2020-10-05 22:52:34,084 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f657008a/8344bb6d1510446d8b899cad279d2a11/FLAG2f79d3289 [2020-10-05 22:52:34,609 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:52:34,610 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2020-10-05 22:52:34,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f657008a/8344bb6d1510446d8b899cad279d2a11/FLAG2f79d3289 [2020-10-05 22:52:34,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f657008a/8344bb6d1510446d8b899cad279d2a11 [2020-10-05 22:52:34,910 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:52:34,912 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:52:34,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:52:34,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:52:34,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:52:34,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:52:34" (1/1) ... [2020-10-05 22:52:34,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f611574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:52:34, skipping insertion in model container [2020-10-05 22:52:34,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:52:34" (1/1) ... [2020-10-05 22:52:34,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:52:34,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:52:35,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:52:35,486 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:52:35,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:52:35,674 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:52:35,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:52:35 WrapperNode [2020-10-05 22:52:35,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:52:35,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:52:35,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:52:35,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:52:35,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:52:35" (1/1) ... [2020-10-05 22:52:35,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:52:35" (1/1) ... [2020-10-05 22:52:35,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:52:35,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:52:35,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:52:35,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:52:35,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:52:35" (1/1) ... [2020-10-05 22:52:35,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:52:35" (1/1) ... [2020-10-05 22:52:35,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:52:35" (1/1) ... [2020-10-05 22:52:35,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:52:35" (1/1) ... [2020-10-05 22:52:35,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:52:35" (1/1) ... [2020-10-05 22:52:35,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:52:35" (1/1) ... [2020-10-05 22:52:35,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:52:35" (1/1) ... [2020-10-05 22:52:35,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:52:35,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:52:35,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:52:35,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:52:35,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:52:35" (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 [2020-10-05 22:52:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:52:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 22:52:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:52:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:52:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 22:52:35,864 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 22:52:35,864 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 22:52:35,864 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 22:52:35,864 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 22:52:35,864 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 22:52:35,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 22:52:35,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:52:35,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:52:35,866 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:52:36,225 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:52:36,225 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:52:36,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:52:36 BoogieIcfgContainer [2020-10-05 22:52:36,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:52:36,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:52:36,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:52:36,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:52:36,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:52:34" (1/3) ... [2020-10-05 22:52:36,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5723156b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:52:36, skipping insertion in model container [2020-10-05 22:52:36,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:52:35" (2/3) ... [2020-10-05 22:52:36,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5723156b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:52:36, skipping insertion in model container [2020-10-05 22:52:36,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:52:36" (3/3) ... [2020-10-05 22:52:36,237 INFO L109 eAbstractionObserver]: Analyzing ICFG safe032_tso.oepc.i [2020-10-05 22:52:36,248 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:52:36,248 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:52:36,259 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:52:36,260 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:52:36,287 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,288 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,288 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,288 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,289 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,289 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,290 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,290 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,290 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,290 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,292 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,292 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,292 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,292 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,293 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,293 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,297 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,298 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,304 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,305 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:52:36,324 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 22:52:36,341 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:52:36,342 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:52:36,342 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:52:36,342 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:52:36,342 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:52:36,342 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:52:36,342 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:52:36,343 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:52:36,357 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-05 22:52:36,358 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-05 22:52:36,404 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-05 22:52:36,404 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:52:36,413 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:52:36,417 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-05 22:52:36,456 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-05 22:52:36,456 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:52:36,457 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:52:36,458 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-05 22:52:36,461 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:52:37,786 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2365 [2020-10-05 22:52:37,786 INFO L214 etLargeBlockEncoding]: Total number of compositions: 53 [2020-10-05 22:52:37,790 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-05 22:52:37,817 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-05 22:52:37,819 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-05 22:52:37,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:52:37,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:52:37,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:52:37,828 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:52:37,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:52:37,833 INFO L82 PathProgramCache]: Analyzing trace with hash -589225259, now seen corresponding path program 1 times [2020-10-05 22:52:37,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:52:37,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522315016] [2020-10-05 22:52:37,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:52:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:52:38,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:52:38,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522315016] [2020-10-05 22:52:38,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:52:38,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:52:38,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992711421] [2020-10-05 22:52:38,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-05 22:52:38,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:52:38,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-05 22:52:38,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 22:52:38,031 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-05 22:52:38,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:52:38,062 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-05 22:52:38,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-05 22:52:38,064 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-05 22:52:38,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:52:38,080 INFO L225 Difference]: With dead ends: 362 [2020-10-05 22:52:38,080 INFO L226 Difference]: Without dead ends: 298 [2020-10-05 22:52:38,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 22:52:38,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-05 22:52:38,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-05 22:52:38,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-05 22:52:38,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-05 22:52:38,160 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-05 22:52:38,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:52:38,161 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-05 22:52:38,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-05 22:52:38,162 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-05 22:52:38,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:52:38,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:52:38,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:52:38,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:52:38,164 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:52:38,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:52:38,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1086118353, now seen corresponding path program 1 times [2020-10-05 22:52:38,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:52:38,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130767890] [2020-10-05 22:52:38,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:52:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:52:38,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:52:38,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130767890] [2020-10-05 22:52:38,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:52:38,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:52:38,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123171728] [2020-10-05 22:52:38,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:52:38,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:52:38,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:52:38,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:52:38,281 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-05 22:52:38,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:52:38,309 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-05 22:52:38,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:52:38,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-05 22:52:38,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:52:38,315 INFO L225 Difference]: With dead ends: 217 [2020-10-05 22:52:38,315 INFO L226 Difference]: Without dead ends: 217 [2020-10-05 22:52:38,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:52:38,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-05 22:52:38,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-05 22:52:38,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-05 22:52:38,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-05 22:52:38,351 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-05 22:52:38,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:52:38,351 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-05 22:52:38,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:52:38,352 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-05 22:52:38,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:52:38,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:52:38,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:52:38,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:52:38,354 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:52:38,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:52:38,354 INFO L82 PathProgramCache]: Analyzing trace with hash -954674037, now seen corresponding path program 1 times [2020-10-05 22:52:38,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:52:38,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700444408] [2020-10-05 22:52:38,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:52:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:52:38,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:52:38,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700444408] [2020-10-05 22:52:38,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:52:38,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:52:38,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092281233] [2020-10-05 22:52:38,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:52:38,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:52:38,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:52:38,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:52:38,417 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-05 22:52:38,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:52:38,440 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-05 22:52:38,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:52:38,441 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:52:38,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:52:38,442 INFO L225 Difference]: With dead ends: 136 [2020-10-05 22:52:38,443 INFO L226 Difference]: Without dead ends: 136 [2020-10-05 22:52:38,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:52:38,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-05 22:52:38,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-05 22:52:38,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-05 22:52:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-05 22:52:38,451 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-05 22:52:38,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:52:38,451 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-05 22:52:38,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:52:38,451 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-05 22:52:38,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:52:38,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:52:38,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:52:38,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:52:38,453 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:52:38,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:52:38,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1044268816, now seen corresponding path program 1 times [2020-10-05 22:52:38,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:52:38,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347690476] [2020-10-05 22:52:38,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:52:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:52:38,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:52:38,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347690476] [2020-10-05 22:52:38,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:52:38,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:52:38,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153619444] [2020-10-05 22:52:38,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:52:38,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:52:38,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:52:38,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:52:38,519 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-05 22:52:38,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:52:38,546 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-05 22:52:38,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:52:38,547 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-05 22:52:38,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:52:38,548 INFO L225 Difference]: With dead ends: 109 [2020-10-05 22:52:38,548 INFO L226 Difference]: Without dead ends: 109 [2020-10-05 22:52:38,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:52:38,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-05 22:52:38,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-05 22:52:38,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-05 22:52:38,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-05 22:52:38,554 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-05 22:52:38,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:52:38,554 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-05 22:52:38,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:52:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-05 22:52:38,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 22:52:38,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:52:38,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:52:38,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:52:38,557 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:52:38,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:52:38,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1052552835, now seen corresponding path program 1 times [2020-10-05 22:52:38,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:52:38,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623501373] [2020-10-05 22:52:38,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:52:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:52:38,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:52:38,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623501373] [2020-10-05 22:52:38,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:52:38,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:52:38,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991969022] [2020-10-05 22:52:38,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:52:38,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:52:38,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:52:38,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:52:38,637 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-10-05 22:52:38,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:52:38,676 INFO L93 Difference]: Finished difference Result 174 states and 369 transitions. [2020-10-05 22:52:38,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:52:38,677 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-05 22:52:38,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:52:38,678 INFO L225 Difference]: With dead ends: 174 [2020-10-05 22:52:38,678 INFO L226 Difference]: Without dead ends: 136 [2020-10-05 22:52:38,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:52:38,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-05 22:52:38,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 109. [2020-10-05 22:52:38,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-05 22:52:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 239 transitions. [2020-10-05 22:52:38,685 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 239 transitions. Word has length 18 [2020-10-05 22:52:38,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:52:38,685 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 239 transitions. [2020-10-05 22:52:38,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:52:38,685 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 239 transitions. [2020-10-05 22:52:38,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 22:52:38,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:52:38,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:52:38,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:52:38,687 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:52:38,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:52:38,687 INFO L82 PathProgramCache]: Analyzing trace with hash 645557555, now seen corresponding path program 2 times [2020-10-05 22:52:38,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:52:38,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412263978] [2020-10-05 22:52:38,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:52:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:52:38,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:52:38,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412263978] [2020-10-05 22:52:38,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:52:38,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:52:38,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566108814] [2020-10-05 22:52:38,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:52:38,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:52:38,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:52:38,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:52:38,744 INFO L87 Difference]: Start difference. First operand 109 states and 239 transitions. Second operand 5 states. [2020-10-05 22:52:38,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:52:38,791 INFO L93 Difference]: Finished difference Result 176 states and 358 transitions. [2020-10-05 22:52:38,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 22:52:38,792 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-05 22:52:38,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:52:38,793 INFO L225 Difference]: With dead ends: 176 [2020-10-05 22:52:38,793 INFO L226 Difference]: Without dead ends: 124 [2020-10-05 22:52:38,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-05 22:52:38,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-05 22:52:38,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 109. [2020-10-05 22:52:38,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-05 22:52:38,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 232 transitions. [2020-10-05 22:52:38,799 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 232 transitions. Word has length 18 [2020-10-05 22:52:38,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:52:38,799 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 232 transitions. [2020-10-05 22:52:38,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:52:38,799 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 232 transitions. [2020-10-05 22:52:38,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 22:52:38,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:52:38,801 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:52:38,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:52:38,801 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:52:38,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:52:38,801 INFO L82 PathProgramCache]: Analyzing trace with hash -457536705, now seen corresponding path program 3 times [2020-10-05 22:52:38,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:52:38,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642664870] [2020-10-05 22:52:38,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:52:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:52:38,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:52:38,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642664870] [2020-10-05 22:52:38,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:52:38,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:52:38,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466940094] [2020-10-05 22:52:38,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:52:38,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:52:38,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:52:38,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:52:38,857 INFO L87 Difference]: Start difference. First operand 109 states and 232 transitions. Second operand 5 states. [2020-10-05 22:52:38,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:52:38,939 INFO L93 Difference]: Finished difference Result 175 states and 348 transitions. [2020-10-05 22:52:38,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-05 22:52:38,939 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-05 22:52:38,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:52:38,940 INFO L225 Difference]: With dead ends: 175 [2020-10-05 22:52:38,940 INFO L226 Difference]: Without dead ends: 55 [2020-10-05 22:52:38,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-05 22:52:38,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-05 22:52:38,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-05 22:52:38,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-05 22:52:38,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-05 22:52:38,944 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-05 22:52:38,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:52:38,944 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-05 22:52:38,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:52:38,944 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-05 22:52:38,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 22:52:38,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:52:38,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:52:38,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:52:38,945 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:52:38,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:52:38,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1271535879, now seen corresponding path program 4 times [2020-10-05 22:52:38,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:52:38,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720656460] [2020-10-05 22:52:38,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:52:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:52:38,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:52:38,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720656460] [2020-10-05 22:52:38,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:52:38,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:52:38,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428956440] [2020-10-05 22:52:38,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:52:38,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:52:38,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:52:38,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:52:38,996 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 4 states. [2020-10-05 22:52:39,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:52:39,010 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-10-05 22:52:39,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:52:39,011 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-05 22:52:39,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:52:39,011 INFO L225 Difference]: With dead ends: 54 [2020-10-05 22:52:39,011 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:52:39,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:52:39,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:52:39,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:52:39,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:52:39,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:52:39,013 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-05 22:52:39,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:52:39,013 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:52:39,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:52:39,013 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:52:39,013 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:52:39,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 22:52:39,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:52:39 BasicIcfg [2020-10-05 22:52:39,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:52:39,020 INFO L168 Benchmark]: Toolchain (without parser) took 4108.15 ms. Allocated memory was 139.5 MB in the beginning and 251.1 MB in the end (delta: 111.7 MB). Free memory was 101.8 MB in the beginning and 202.3 MB in the end (delta: -100.5 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-10-05 22:52:39,021 INFO L168 Benchmark]: CDTParser took 1.39 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-05 22:52:39,022 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.92 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.6 MB in the beginning and 160.3 MB in the end (delta: -58.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-10-05 22:52:39,023 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.97 ms. Allocated memory is still 202.9 MB. Free memory was 160.3 MB in the beginning and 158.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-05 22:52:39,024 INFO L168 Benchmark]: Boogie Preprocessor took 47.99 ms. Allocated memory is still 202.9 MB. Free memory was 158.2 MB in the beginning and 156.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-05 22:52:39,025 INFO L168 Benchmark]: RCFGBuilder took 427.04 ms. Allocated memory is still 202.9 MB. Free memory was 156.9 MB in the beginning and 133.9 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-05 22:52:39,025 INFO L168 Benchmark]: TraceAbstraction took 2788.11 ms. Allocated memory was 202.9 MB in the beginning and 251.1 MB in the end (delta: 48.2 MB). Free memory was 133.9 MB in the beginning and 202.3 MB in the end (delta: -68.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-05 22:52:39,029 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 762.92 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.6 MB in the beginning and 160.3 MB in the end (delta: -58.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 75.97 ms. Allocated memory is still 202.9 MB. Free memory was 160.3 MB in the beginning and 158.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.99 ms. Allocated memory is still 202.9 MB. Free memory was 158.2 MB in the beginning and 156.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 427.04 ms. Allocated memory is still 202.9 MB. Free memory was 156.9 MB in the beginning and 133.9 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2788.11 ms. Allocated memory was 202.9 MB in the beginning and 251.1 MB in the end (delta: 48.2 MB). Free memory was 133.9 MB in the beginning and 202.3 MB in the end (delta: -68.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 77 ProgramPointsBefore, 32 ProgramPointsAfterwards, 69 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 648 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2365 CheckedPairsTotal, 53 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 162 SDtfs, 105 SDslu, 267 SDs, 0 SdLazy, 91 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 42 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 3814 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...