/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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 02:31:34,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 02:31:34,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 02:31:34,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 02:31:34,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 02:31:34,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 02:31:34,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 02:31:34,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 02:31:34,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 02:31:34,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 02:31:34,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 02:31:34,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 02:31:34,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 02:31:34,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 02:31:34,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 02:31:34,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 02:31:34,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 02:31:34,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 02:31:34,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 02:31:34,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 02:31:34,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 02:31:34,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 02:31:34,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 02:31:34,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 02:31:34,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-18 02:31:34,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-18 02:31:34,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-18 02:31:34,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-18 02:31:34,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-18 02:31:34,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-18 02:31:34,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 02:31:34,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 02:31:34,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 02:31:34,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 02:31:34,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 02:31:34,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 02:31:34,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 02:31:34,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 02:31:34,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 02:31:34,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 02:31:34,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 02:31:34,286 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-18 02:31:34,342 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 02:31:34,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 02:31:34,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 02:31:34,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 02:31:34,344 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 02:31:34,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 02:31:34,344 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 02:31:34,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 02:31:34,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 02:31:34,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 02:31:34,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 02:31:34,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 02:31:34,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 02:31:34,346 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 02:31:34,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 02:31:34,346 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 02:31:34,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 02:31:34,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 02:31:34,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 02:31:34,347 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 02:31:34,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 02:31:34,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 02:31:34,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 02:31:34,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 02:31:34,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 02:31:34,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 02:31:34,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 02:31:34,349 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 02:31:34,349 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 02:31:34,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 02:31:34,349 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 02:31:34,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 02:31:34,819 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 02:31:34,823 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 02:31:34,825 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 02:31:34,825 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 02:31:34,827 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i [2020-09-18 02:31:34,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cc12ac03/ba9e6f125a5344b3b8a3644480a31694/FLAG5a294958d [2020-09-18 02:31:35,625 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 02:31:35,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i [2020-09-18 02:31:35,648 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cc12ac03/ba9e6f125a5344b3b8a3644480a31694/FLAG5a294958d [2020-09-18 02:31:35,807 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cc12ac03/ba9e6f125a5344b3b8a3644480a31694 [2020-09-18 02:31:35,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 02:31:35,828 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 02:31:35,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 02:31:35,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 02:31:35,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 02:31:35,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 02:31:35" (1/1) ... [2020-09-18 02:31:35,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea91c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:31:35, skipping insertion in model container [2020-09-18 02:31:35,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 02:31:35" (1/1) ... [2020-09-18 02:31:35,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 02:31:35,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 02:31:36,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 02:31:36,391 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 02:31:36,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 02:31:36,534 INFO L208 MainTranslator]: Completed translation [2020-09-18 02:31:36,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:31:36 WrapperNode [2020-09-18 02:31:36,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 02:31:36,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 02:31:36,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 02:31:36,536 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 02:31:36,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:31:36" (1/1) ... [2020-09-18 02:31:36,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:31:36" (1/1) ... [2020-09-18 02:31:36,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 02:31:36,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 02:31:36,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 02:31:36,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 02:31:36,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:31:36" (1/1) ... [2020-09-18 02:31:36,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:31:36" (1/1) ... [2020-09-18 02:31:36,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:31:36" (1/1) ... [2020-09-18 02:31:36,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:31:36" (1/1) ... [2020-09-18 02:31:36,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:31:36" (1/1) ... [2020-09-18 02:31:36,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:31:36" (1/1) ... [2020-09-18 02:31:36,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:31:36" (1/1) ... [2020-09-18 02:31:36,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 02:31:36,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 02:31:36,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 02:31:36,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 02:31:36,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:31:36" (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 [2020-09-18 02:31:36,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 02:31:36,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 02:31:36,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 02:31:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 02:31:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 02:31:36,723 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 02:31:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 02:31:36,725 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 02:31:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-18 02:31:36,726 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-18 02:31:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 02:31:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 02:31:36,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 02:31:36,729 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 02:31:37,201 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 02:31:37,202 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 02:31:37,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 02:31:37 BoogieIcfgContainer [2020-09-18 02:31:37,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 02:31:37,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 02:31:37,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 02:31:37,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 02:31:37,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 02:31:35" (1/3) ... [2020-09-18 02:31:37,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba26f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 02:31:37, skipping insertion in model container [2020-09-18 02:31:37,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:31:36" (2/3) ... [2020-09-18 02:31:37,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba26f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 02:31:37, skipping insertion in model container [2020-09-18 02:31:37,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 02:31:37" (3/3) ... [2020-09-18 02:31:37,218 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_pso.oepc.i [2020-09-18 02:31:37,231 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 02:31:37,231 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 02:31:37,249 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 02:31:37,252 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 02:31:37,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,283 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,283 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,285 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,285 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,286 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,287 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,293 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,293 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,300 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,300 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,301 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,301 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,303 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,304 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,304 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,304 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:31:37,327 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-18 02:31:37,353 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 02:31:37,353 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 02:31:37,354 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 02:31:37,354 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 02:31:37,354 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 02:31:37,354 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 02:31:37,354 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 02:31:37,355 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 02:31:37,374 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-18 02:31:37,377 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-18 02:31:37,432 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-18 02:31:37,433 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 02:31:37,439 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-18 02:31:37,443 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-18 02:31:37,467 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-18 02:31:37,467 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 02:31:37,468 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-18 02:31:37,471 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-18 02:31:37,473 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 02:31:38,949 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-18 02:31:39,070 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-09-18 02:31:39,071 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-18 02:31:39,077 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-18 02:31:39,132 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-18 02:31:39,135 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-18 02:31:39,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-18 02:31:39,150 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:31:39,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:31:39,152 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:31:39,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:31:39,160 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-09-18 02:31:39,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:31:39,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142228415] [2020-09-18 02:31:39,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:31:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:31:39,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:31:39,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142228415] [2020-09-18 02:31:39,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:31:39,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 02:31:39,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [622920123] [2020-09-18 02:31:39,415 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:31:39,418 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:31:39,441 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-18 02:31:39,441 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:31:39,443 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:31:39,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-18 02:31:39,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:31:39,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-18 02:31:39,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-18 02:31:39,463 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-18 02:31:39,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:31:39,490 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-18 02:31:39,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-18 02:31:39,492 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-18 02:31:39,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:31:39,513 INFO L225 Difference]: With dead ends: 362 [2020-09-18 02:31:39,514 INFO L226 Difference]: Without dead ends: 298 [2020-09-18 02:31:39,515 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 [2020-09-18 02:31:39,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-18 02:31:39,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-18 02:31:39,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-18 02:31:39,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-18 02:31:39,610 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-18 02:31:39,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:31:39,612 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-18 02:31:39,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-18 02:31:39,612 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-18 02:31:39,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-18 02:31:39,617 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:31:39,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:31:39,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 02:31:39,617 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:31:39,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:31:39,618 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-09-18 02:31:39,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:31:39,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650520852] [2020-09-18 02:31:39,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:31:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:31:39,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:31:39,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650520852] [2020-09-18 02:31:39,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:31:39,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 02:31:39,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [274604435] [2020-09-18 02:31:39,794 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:31:39,795 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:31:39,797 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-18 02:31:39,798 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:31:39,798 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:31:39,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 02:31:39,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:31:39,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 02:31:39,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 02:31:39,801 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-09-18 02:31:39,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:31:39,847 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-09-18 02:31:39,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 02:31:39,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-18 02:31:39,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:31:39,852 INFO L225 Difference]: With dead ends: 330 [2020-09-18 02:31:39,852 INFO L226 Difference]: Without dead ends: 266 [2020-09-18 02:31:39,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:31:39,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-18 02:31:39,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-09-18 02:31:39,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-18 02:31:39,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-09-18 02:31:39,880 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-09-18 02:31:39,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:31:39,881 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-09-18 02:31:39,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 02:31:39,881 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-09-18 02:31:39,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-18 02:31:39,883 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:31:39,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:31:39,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 02:31:39,884 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:31:39,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:31:39,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times [2020-09-18 02:31:39,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:31:39,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547974847] [2020-09-18 02:31:39,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:31:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:31:40,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:31:40,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547974847] [2020-09-18 02:31:40,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:31:40,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 02:31:40,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1870780777] [2020-09-18 02:31:40,035 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:31:40,036 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:31:40,038 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-09-18 02:31:40,038 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:31:40,046 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:31:40,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 02:31:40,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:31:40,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 02:31:40,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:31:40,047 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-09-18 02:31:40,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:31:40,131 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-09-18 02:31:40,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-18 02:31:40,131 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-09-18 02:31:40,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:31:40,134 INFO L225 Difference]: With dead ends: 290 [2020-09-18 02:31:40,134 INFO L226 Difference]: Without dead ends: 242 [2020-09-18 02:31:40,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-18 02:31:40,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-09-18 02:31:40,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-09-18 02:31:40,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-09-18 02:31:40,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-09-18 02:31:40,153 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-09-18 02:31:40,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:31:40,153 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-09-18 02:31:40,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 02:31:40,153 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-09-18 02:31:40,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 02:31:40,155 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:31:40,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:31:40,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 02:31:40,156 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:31:40,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:31:40,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 1 times [2020-09-18 02:31:40,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:31:40,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444657879] [2020-09-18 02:31:40,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:31:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:31:40,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:31:40,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444657879] [2020-09-18 02:31:40,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:31:40,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 02:31:40,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1932933395] [2020-09-18 02:31:40,229 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:31:40,230 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:31:40,232 INFO L274 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-09-18 02:31:40,233 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:31:40,298 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:31:40,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 02:31:40,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:31:40,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 02:31:40,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 02:31:40,299 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 4 states. [2020-09-18 02:31:40,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:31:40,324 INFO L93 Difference]: Finished difference Result 260 states and 694 transitions. [2020-09-18 02:31:40,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 02:31:40,325 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-18 02:31:40,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:31:40,327 INFO L225 Difference]: With dead ends: 260 [2020-09-18 02:31:40,327 INFO L226 Difference]: Without dead ends: 224 [2020-09-18 02:31:40,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:31:40,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-09-18 02:31:40,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-09-18 02:31:40,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-18 02:31:40,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 610 transitions. [2020-09-18 02:31:40,341 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 610 transitions. Word has length 11 [2020-09-18 02:31:40,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:31:40,341 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 610 transitions. [2020-09-18 02:31:40,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 02:31:40,342 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 610 transitions. [2020-09-18 02:31:40,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-18 02:31:40,344 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:31:40,344 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:31:40,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 02:31:40,344 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:31:40,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:31:40,345 INFO L82 PathProgramCache]: Analyzing trace with hash 368404844, now seen corresponding path program 1 times [2020-09-18 02:31:40,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:31:40,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14825479] [2020-09-18 02:31:40,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:31:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:31:40,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:31:40,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14825479] [2020-09-18 02:31:40,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:31:40,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 02:31:40,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1125989356] [2020-09-18 02:31:40,464 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:31:40,469 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:31:40,498 INFO L274 McrAutomatonBuilder]: Finished intersection with 32 states and 58 transitions. [2020-09-18 02:31:40,498 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:31:40,674 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:31:40,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 02:31:40,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:31:40,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 02:31:40,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:31:40,675 INFO L87 Difference]: Start difference. First operand 224 states and 610 transitions. Second operand 5 states. [2020-09-18 02:31:40,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:31:40,730 INFO L93 Difference]: Finished difference Result 293 states and 773 transitions. [2020-09-18 02:31:40,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 02:31:40,731 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-18 02:31:40,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:31:40,732 INFO L225 Difference]: With dead ends: 293 [2020-09-18 02:31:40,732 INFO L226 Difference]: Without dead ends: 146 [2020-09-18 02:31:40,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-18 02:31:40,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-18 02:31:40,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-09-18 02:31:40,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-18 02:31:40,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-09-18 02:31:40,739 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 12 [2020-09-18 02:31:40,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:31:40,740 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-09-18 02:31:40,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 02:31:40,740 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-09-18 02:31:40,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 02:31:40,741 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:31:40,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:31:40,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-18 02:31:40,742 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:31:40,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:31:40,743 INFO L82 PathProgramCache]: Analyzing trace with hash 257080554, now seen corresponding path program 1 times [2020-09-18 02:31:40,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:31:40,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200015033] [2020-09-18 02:31:40,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:31:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:31:40,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:31:40,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200015033] [2020-09-18 02:31:40,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:31:40,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 02:31:40,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1852425239] [2020-09-18 02:31:40,840 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:31:40,842 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:31:40,846 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 56 transitions. [2020-09-18 02:31:40,846 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:31:40,982 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:31:40,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 02:31:40,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:31:40,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 02:31:40,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:31:40,984 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-09-18 02:31:41,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:31:41,039 INFO L93 Difference]: Finished difference Result 176 states and 423 transitions. [2020-09-18 02:31:41,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 02:31:41,040 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-18 02:31:41,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:31:41,041 INFO L225 Difference]: With dead ends: 176 [2020-09-18 02:31:41,041 INFO L226 Difference]: Without dead ends: 98 [2020-09-18 02:31:41,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-18 02:31:41,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-18 02:31:41,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-09-18 02:31:41,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-18 02:31:41,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 218 transitions. [2020-09-18 02:31:41,046 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 218 transitions. Word has length 13 [2020-09-18 02:31:41,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:31:41,046 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 218 transitions. [2020-09-18 02:31:41,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 02:31:41,047 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 218 transitions. [2020-09-18 02:31:41,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-18 02:31:41,048 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:31:41,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:31:41,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-18 02:31:41,048 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:31:41,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:31:41,049 INFO L82 PathProgramCache]: Analyzing trace with hash -647415272, now seen corresponding path program 1 times [2020-09-18 02:31:41,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:31:41,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277904142] [2020-09-18 02:31:41,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:31:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:31:41,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:31:41,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277904142] [2020-09-18 02:31:41,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:31:41,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 02:31:41,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [995921739] [2020-09-18 02:31:41,116 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:31:41,118 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:31:41,122 INFO L274 McrAutomatonBuilder]: Finished intersection with 32 states and 48 transitions. [2020-09-18 02:31:41,122 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:31:41,170 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:31:41,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 02:31:41,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:31:41,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 02:31:41,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:31:41,172 INFO L87 Difference]: Start difference. First operand 98 states and 218 transitions. Second operand 5 states. [2020-09-18 02:31:41,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:31:41,216 INFO L93 Difference]: Finished difference Result 86 states and 186 transitions. [2020-09-18 02:31:41,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 02:31:41,216 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-18 02:31:41,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:31:41,217 INFO L225 Difference]: With dead ends: 86 [2020-09-18 02:31:41,217 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 02:31:41,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-18 02:31:41,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 02:31:41,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 02:31:41,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 02:31:41,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 02:31:41,219 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-09-18 02:31:41,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:31:41,219 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 02:31:41,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 02:31:41,220 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 02:31:41,220 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 02:31:41,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-18 02:31:41,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 02:31:41 BasicIcfg [2020-09-18 02:31:41,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 02:31:41,228 INFO L168 Benchmark]: Toolchain (without parser) took 5403.80 ms. Allocated memory was 142.6 MB in the beginning and 244.3 MB in the end (delta: 101.7 MB). Free memory was 105.0 MB in the beginning and 122.0 MB in the end (delta: -17.0 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. [2020-09-18 02:31:41,229 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 124.2 MB in the beginning and 124.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-18 02:31:41,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.56 ms. Allocated memory was 142.6 MB in the beginning and 205.5 MB in the end (delta: 62.9 MB). Free memory was 104.4 MB in the beginning and 163.1 MB in the end (delta: -58.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-09-18 02:31:41,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.16 ms. Allocated memory is still 205.5 MB. Free memory was 163.1 MB in the beginning and 161.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-18 02:31:41,232 INFO L168 Benchmark]: Boogie Preprocessor took 34.22 ms. Allocated memory is still 205.5 MB. Free memory was 161.2 MB in the beginning and 159.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-18 02:31:41,233 INFO L168 Benchmark]: RCFGBuilder took 573.07 ms. Allocated memory is still 205.5 MB. Free memory was 159.3 MB in the beginning and 137.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-09-18 02:31:41,233 INFO L168 Benchmark]: TraceAbstraction took 4016.64 ms. Allocated memory was 205.5 MB in the beginning and 244.3 MB in the end (delta: 38.8 MB). Free memory was 136.8 MB in the beginning and 122.0 MB in the end (delta: 14.9 MB). Peak memory consumption was 53.7 MB. Max. memory is 7.1 GB. [2020-09-18 02:31:41,238 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 124.2 MB in the beginning and 124.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 705.56 ms. Allocated memory was 142.6 MB in the beginning and 205.5 MB in the end (delta: 62.9 MB). Free memory was 104.4 MB in the beginning and 163.1 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 64.16 ms. Allocated memory is still 205.5 MB. Free memory was 163.1 MB in the beginning and 161.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.22 ms. Allocated memory is still 205.5 MB. Free memory was 161.2 MB in the beginning and 159.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 573.07 ms. Allocated memory is still 205.5 MB. Free memory was 159.3 MB in the beginning and 137.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4016.64 ms. Allocated memory was 205.5 MB in the beginning and 244.3 MB in the end (delta: 38.8 MB). Free memory was 136.8 MB in the beginning and 122.0 MB in the end (delta: 14.9 MB). Peak memory consumption was 53.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 668 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 151 SDtfs, 152 SDslu, 225 SDs, 0 SdLazy, 66 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...