/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/safe030_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-16 00:49:32,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-16 00:49:32,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-16 00:49:32,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-16 00:49:32,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-16 00:49:32,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-16 00:49:32,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-16 00:49:32,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-16 00:49:32,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-16 00:49:32,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-16 00:49:32,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-16 00:49:32,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-16 00:49:32,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-16 00:49:32,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-16 00:49:32,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-16 00:49:32,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-16 00:49:32,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-16 00:49:32,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-16 00:49:32,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-16 00:49:32,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-16 00:49:32,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-16 00:49:32,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-16 00:49:32,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-16 00:49:32,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-16 00:49:32,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-16 00:49:32,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-16 00:49:32,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-16 00:49:32,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-16 00:49:32,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-16 00:49:32,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-16 00:49:32,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-16 00:49:32,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-16 00:49:32,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-16 00:49:32,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-16 00:49:32,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-16 00:49:32,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-16 00:49:32,549 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-16 00:49:32,575 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-16 00:49:32,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-16 00:49:32,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-16 00:49:32,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-16 00:49:32,577 INFO L138 SettingsManager]: * Use SBE=true [2020-09-16 00:49:32,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-16 00:49:32,578 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-16 00:49:32,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-16 00:49:32,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-16 00:49:32,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-16 00:49:32,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-16 00:49:32,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-16 00:49:32,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-16 00:49:32,579 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-16 00:49:32,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-16 00:49:32,579 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-16 00:49:32,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-16 00:49:32,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-16 00:49:32,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-16 00:49:32,580 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-16 00:49:32,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-16 00:49:32,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 00:49:32,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-16 00:49:32,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-16 00:49:32,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-16 00:49:32,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-16 00:49:32,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-16 00:49:32,582 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-16 00:49:32,582 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-16 00:49:32,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-16 00:49:32,582 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-16 00:49:33,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-16 00:49:33,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-16 00:49:33,121 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-16 00:49:33,125 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-16 00:49:33,126 INFO L275 PluginConnector]: CDTParser initialized [2020-09-16 00:49:33,128 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-09-16 00:49:33,202 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/273b8b610/10f0403d479e4005ab146e3642ab1faa/FLAG697111e65 [2020-09-16 00:49:33,827 INFO L306 CDTParser]: Found 1 translation units. [2020-09-16 00:49:33,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-09-16 00:49:33,863 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/273b8b610/10f0403d479e4005ab146e3642ab1faa/FLAG697111e65 [2020-09-16 00:49:34,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/273b8b610/10f0403d479e4005ab146e3642ab1faa [2020-09-16 00:49:34,085 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-16 00:49:34,091 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-16 00:49:34,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-16 00:49:34,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-16 00:49:34,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-16 00:49:34,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:49:34" (1/1) ... [2020-09-16 00:49:34,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4056ff15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:49:34, skipping insertion in model container [2020-09-16 00:49:34,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:49:34" (1/1) ... [2020-09-16 00:49:34,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-16 00:49:34,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-16 00:49:34,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 00:49:34,779 INFO L203 MainTranslator]: Completed pre-run [2020-09-16 00:49:34,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 00:49:34,911 INFO L208 MainTranslator]: Completed translation [2020-09-16 00:49:34,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:49:34 WrapperNode [2020-09-16 00:49:34,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-16 00:49:34,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-16 00:49:34,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-16 00:49:34,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-16 00:49:34,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:49:34" (1/1) ... [2020-09-16 00:49:34,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:49:34" (1/1) ... [2020-09-16 00:49:34,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-16 00:49:34,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-16 00:49:34,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-16 00:49:34,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-16 00:49:34,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:49:34" (1/1) ... [2020-09-16 00:49:34,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:49:34" (1/1) ... [2020-09-16 00:49:34,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:49:34" (1/1) ... [2020-09-16 00:49:34,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:49:34" (1/1) ... [2020-09-16 00:49:34,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:49:34" (1/1) ... [2020-09-16 00:49:34,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:49:34" (1/1) ... [2020-09-16 00:49:35,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:49:34" (1/1) ... [2020-09-16 00:49:35,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-16 00:49:35,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-16 00:49:35,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-16 00:49:35,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-16 00:49:35,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:49:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-16 00:49:35,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-16 00:49:35,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-16 00:49:35,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-16 00:49:35,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-16 00:49:35,088 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-16 00:49:35,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-16 00:49:35,089 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-16 00:49:35,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-16 00:49:35,089 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-16 00:49:35,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-16 00:49:35,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-16 00:49:35,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-16 00:49:35,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-16 00:49:35,093 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-16 00:49:35,478 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-16 00:49:35,479 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-16 00:49:35,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:49:35 BoogieIcfgContainer [2020-09-16 00:49:35,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-16 00:49:35,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-16 00:49:35,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-16 00:49:35,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-16 00:49:35,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 12:49:34" (1/3) ... [2020-09-16 00:49:35,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab1308c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:49:35, skipping insertion in model container [2020-09-16 00:49:35,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:49:34" (2/3) ... [2020-09-16 00:49:35,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab1308c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:49:35, skipping insertion in model container [2020-09-16 00:49:35,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:49:35" (3/3) ... [2020-09-16 00:49:35,496 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2020-09-16 00:49:35,509 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-16 00:49:35,509 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-16 00:49:35,520 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-16 00:49:35,522 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-16 00:49:35,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,554 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,554 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,554 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,555 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,555 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,556 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,556 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,557 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,558 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,558 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,558 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,559 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,559 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,564 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,564 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,564 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,565 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,575 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,575 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,580 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,581 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,581 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,581 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:49:35,607 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-16 00:49:35,633 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-16 00:49:35,634 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-16 00:49:35,634 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-16 00:49:35,634 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-16 00:49:35,634 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-16 00:49:35,634 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-16 00:49:35,635 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-16 00:49:35,635 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-16 00:49:35,652 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-09-16 00:49:35,654 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-16 00:49:35,704 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-16 00:49:35,705 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 00:49:35,711 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-16 00:49:35,715 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-16 00:49:35,738 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-16 00:49:35,738 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 00:49:35,739 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-16 00:49:35,741 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-16 00:49:35,743 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-16 00:49:36,993 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2202 [2020-09-16 00:49:36,994 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-09-16 00:49:36,999 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-16 00:49:37,035 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-16 00:49:37,038 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-16 00:49:37,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-16 00:49:37,048 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:49:37,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:49:37,050 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:49:37,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:49:37,058 INFO L82 PathProgramCache]: Analyzing trace with hash -346907981, now seen corresponding path program 1 times [2020-09-16 00:49:37,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:49:37,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889696894] [2020-09-16 00:49:37,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:49:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:49:37,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:49:37,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889696894] [2020-09-16 00:49:37,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:49:37,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 00:49:37,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1268871082] [2020-09-16 00:49:37,300 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:49:37,307 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:49:37,323 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-16 00:49:37,323 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:49:37,326 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:49:37,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-16 00:49:37,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:49:37,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-16 00:49:37,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-16 00:49:37,347 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-16 00:49:37,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:49:37,399 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-16 00:49:37,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-16 00:49:37,401 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-16 00:49:37,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:49:37,424 INFO L225 Difference]: With dead ends: 362 [2020-09-16 00:49:37,424 INFO L226 Difference]: Without dead ends: 298 [2020-09-16 00:49:37,426 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 [2020-09-16 00:49:37,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-16 00:49:37,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-16 00:49:37,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-16 00:49:37,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-16 00:49:37,521 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-16 00:49:37,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:49:37,523 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-16 00:49:37,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-16 00:49:37,523 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-16 00:49:37,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-16 00:49:37,524 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:49:37,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:49:37,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-16 00:49:37,525 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:49:37,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:49:37,526 INFO L82 PathProgramCache]: Analyzing trace with hash 2130750683, now seen corresponding path program 1 times [2020-09-16 00:49:37,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:49:37,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753883913] [2020-09-16 00:49:37,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:49:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:49:37,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:49:37,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753883913] [2020-09-16 00:49:37,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:49:37,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 00:49:37,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [506094920] [2020-09-16 00:49:37,632 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:49:37,633 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:49:37,635 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-16 00:49:37,635 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:49:37,636 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:49:37,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 00:49:37,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:49:37,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 00:49:37,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 00:49:37,639 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-09-16 00:49:37,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:49:37,660 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-09-16 00:49:37,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 00:49:37,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-16 00:49:37,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:49:37,663 INFO L225 Difference]: With dead ends: 217 [2020-09-16 00:49:37,664 INFO L226 Difference]: Without dead ends: 217 [2020-09-16 00:49:37,665 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 [2020-09-16 00:49:37,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-09-16 00:49:37,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-09-16 00:49:37,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-16 00:49:37,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-09-16 00:49:37,685 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-09-16 00:49:37,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:49:37,685 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-09-16 00:49:37,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 00:49:37,685 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-09-16 00:49:37,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-16 00:49:37,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:49:37,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:49:37,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-16 00:49:37,688 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:49:37,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:49:37,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1087116204, now seen corresponding path program 1 times [2020-09-16 00:49:37,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:49:37,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355064352] [2020-09-16 00:49:37,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:49:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:49:37,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:49:37,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355064352] [2020-09-16 00:49:37,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:49:37,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 00:49:37,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [40522130] [2020-09-16 00:49:37,807 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:49:37,808 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:49:37,810 INFO L274 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-09-16 00:49:37,810 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:49:37,811 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:49:37,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 00:49:37,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:49:37,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 00:49:37,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-16 00:49:37,812 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-09-16 00:49:37,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:49:37,843 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-09-16 00:49:37,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-16 00:49:37,844 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-16 00:49:37,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:49:37,846 INFO L225 Difference]: With dead ends: 136 [2020-09-16 00:49:37,846 INFO L226 Difference]: Without dead ends: 136 [2020-09-16 00:49:37,847 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 [2020-09-16 00:49:37,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-16 00:49:37,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-09-16 00:49:37,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-16 00:49:37,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-09-16 00:49:37,856 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-09-16 00:49:37,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:49:37,857 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-09-16 00:49:37,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 00:49:37,857 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-09-16 00:49:37,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-16 00:49:37,859 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:49:37,859 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:49:37,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-16 00:49:37,859 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:49:37,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:49:37,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1427017344, now seen corresponding path program 1 times [2020-09-16 00:49:37,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:49:37,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572963727] [2020-09-16 00:49:37,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:49:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:49:37,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:49:37,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572963727] [2020-09-16 00:49:37,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:49:37,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-16 00:49:37,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1754611702] [2020-09-16 00:49:37,967 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:49:37,969 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:49:37,973 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 50 transitions. [2020-09-16 00:49:37,973 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:49:38,083 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:49:38,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 00:49:38,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:49:38,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 00:49:38,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:49:38,084 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-09-16 00:49:38,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:49:38,122 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-09-16 00:49:38,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 00:49:38,122 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-16 00:49:38,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:49:38,124 INFO L225 Difference]: With dead ends: 109 [2020-09-16 00:49:38,124 INFO L226 Difference]: Without dead ends: 109 [2020-09-16 00:49:38,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:49:38,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-16 00:49:38,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-09-16 00:49:38,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-16 00:49:38,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-09-16 00:49:38,131 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-09-16 00:49:38,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:49:38,132 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-09-16 00:49:38,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 00:49:38,132 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-09-16 00:49:38,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-16 00:49:38,133 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:49:38,134 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:49:38,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-16 00:49:38,134 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:49:38,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:49:38,135 INFO L82 PathProgramCache]: Analyzing trace with hash 68730238, now seen corresponding path program 1 times [2020-09-16 00:49:38,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:49:38,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964280709] [2020-09-16 00:49:38,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:49:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:49:38,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:49:38,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964280709] [2020-09-16 00:49:38,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:49:38,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 00:49:38,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [567927624] [2020-09-16 00:49:38,226 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:49:38,228 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:49:38,239 INFO L274 McrAutomatonBuilder]: Finished intersection with 77 states and 141 transitions. [2020-09-16 00:49:38,239 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:49:38,255 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:49:38,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 00:49:38,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:49:38,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 00:49:38,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 00:49:38,257 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-09-16 00:49:38,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:49:38,278 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-09-16 00:49:38,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-16 00:49:38,278 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-09-16 00:49:38,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:49:38,279 INFO L225 Difference]: With dead ends: 135 [2020-09-16 00:49:38,280 INFO L226 Difference]: Without dead ends: 85 [2020-09-16 00:49:38,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:49:38,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-16 00:49:38,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-09-16 00:49:38,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-16 00:49:38,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-09-16 00:49:38,286 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-09-16 00:49:38,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:49:38,286 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-09-16 00:49:38,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 00:49:38,286 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-09-16 00:49:38,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-16 00:49:38,287 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:49:38,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:49:38,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-16 00:49:38,288 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:49:38,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:49:38,289 INFO L82 PathProgramCache]: Analyzing trace with hash 225033754, now seen corresponding path program 2 times [2020-09-16 00:49:38,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:49:38,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846662119] [2020-09-16 00:49:38,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:49:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:49:38,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:49:38,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846662119] [2020-09-16 00:49:38,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:49:38,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 00:49:38,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [898240256] [2020-09-16 00:49:38,364 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:49:38,367 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:49:38,378 INFO L274 McrAutomatonBuilder]: Finished intersection with 79 states and 141 transitions. [2020-09-16 00:49:38,379 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:49:38,398 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:49:38,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 00:49:38,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:49:38,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 00:49:38,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 00:49:38,400 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 4 states. [2020-09-16 00:49:38,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:49:38,422 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-09-16 00:49:38,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-16 00:49:38,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-09-16 00:49:38,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:49:38,423 INFO L225 Difference]: With dead ends: 99 [2020-09-16 00:49:38,423 INFO L226 Difference]: Without dead ends: 37 [2020-09-16 00:49:38,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:49:38,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-16 00:49:38,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-09-16 00:49:38,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-16 00:49:38,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-09-16 00:49:38,427 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-09-16 00:49:38,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:49:38,428 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-09-16 00:49:38,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 00:49:38,428 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-09-16 00:49:38,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-16 00:49:38,432 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:49:38,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:49:38,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-16 00:49:38,433 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:49:38,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:49:38,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1816005352, now seen corresponding path program 3 times [2020-09-16 00:49:38,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:49:38,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39165252] [2020-09-16 00:49:38,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:49:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:49:38,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:49:38,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39165252] [2020-09-16 00:49:38,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:49:38,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 00:49:38,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1791363743] [2020-09-16 00:49:38,557 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:49:38,559 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:49:38,572 INFO L274 McrAutomatonBuilder]: Finished intersection with 77 states and 138 transitions. [2020-09-16 00:49:38,572 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:49:38,583 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:49:38,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 00:49:38,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:49:38,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 00:49:38,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 00:49:38,588 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-09-16 00:49:38,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:49:38,606 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-09-16 00:49:38,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-16 00:49:38,607 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-09-16 00:49:38,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:49:38,607 INFO L225 Difference]: With dead ends: 36 [2020-09-16 00:49:38,607 INFO L226 Difference]: Without dead ends: 0 [2020-09-16 00:49:38,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:49:38,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-16 00:49:38,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-16 00:49:38,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-16 00:49:38,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-16 00:49:38,609 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-16 00:49:38,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:49:38,609 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-16 00:49:38,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 00:49:38,610 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-16 00:49:38,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-16 00:49:38,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-16 00:49:38,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 12:49:38 BasicIcfg [2020-09-16 00:49:38,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-16 00:49:38,626 INFO L168 Benchmark]: Toolchain (without parser) took 4537.00 ms. Allocated memory was 146.8 MB in the beginning and 248.5 MB in the end (delta: 101.7 MB). Free memory was 101.5 MB in the beginning and 92.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 110.4 MB. Max. memory is 7.1 GB. [2020-09-16 00:49:38,632 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-16 00:49:38,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 819.79 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 100.9 MB in the beginning and 161.7 MB in the end (delta: -60.9 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-09-16 00:49:38,634 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.56 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-16 00:49:38,641 INFO L168 Benchmark]: Boogie Preprocessor took 30.45 ms. Allocated memory is still 203.9 MB. Free memory was 159.1 MB in the beginning and 157.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-16 00:49:38,643 INFO L168 Benchmark]: RCFGBuilder took 479.81 ms. Allocated memory is still 203.9 MB. Free memory was 157.8 MB in the beginning and 136.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-09-16 00:49:38,645 INFO L168 Benchmark]: TraceAbstraction took 3134.11 ms. Allocated memory was 203.9 MB in the beginning and 248.5 MB in the end (delta: 44.6 MB). Free memory was 135.5 MB in the beginning and 92.8 MB in the end (delta: 42.6 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2020-09-16 00:49:38,651 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 819.79 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 100.9 MB in the beginning and 161.7 MB in the end (delta: -60.9 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.56 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.45 ms. Allocated memory is still 203.9 MB. Free memory was 159.1 MB in the beginning and 157.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 479.81 ms. Allocated memory is still 203.9 MB. Free memory was 157.8 MB in the beginning and 136.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3134.11 ms. Allocated memory was 203.9 MB in the beginning and 248.5 MB in the end (delta: 44.6 MB). Free memory was 135.5 MB in the beginning and 92.8 MB in the end (delta: 42.6 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 76 ProgramPointsBefore, 32 ProgramPointsAfterwards, 68 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 655 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2202 CheckedPairsTotal, 55 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 128 SDtfs, 66 SDslu, 157 SDs, 0 SdLazy, 49 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2420 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...