/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:12:34,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:12:34,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:12:34,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:12:34,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:12:34,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:12:34,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:12:34,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:12:34,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:12:34,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:12:34,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:12:34,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:12:34,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:12:34,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:12:34,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:12:34,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:12:34,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:12:34,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:12:34,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:12:34,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:12:34,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:12:34,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:12:34,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:12:34,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:12:34,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 15:12:34,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:12:34,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:12:34,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:12:34,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:12:34,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:12:34,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:12:34,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:12:34,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:12:34,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:12:34,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:12:34,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:12:34,517 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-11 15:12:34,558 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:12:34,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:12:34,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:12:34,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:12:34,563 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:12:34,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:12:34,563 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:12:34,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:12:34,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:12:34,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:12:34,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:12:34,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:12:34,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:12:34,565 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:12:34,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:12:34,566 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:12:34,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:12:34,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:12:34,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:12:34,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:12:34,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:12:34,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:12:34,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:12:34,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:12:34,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:12:34,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:12:34,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:12:34,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:12:34,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:12:34,569 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:12:34,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:12:34,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:12:34,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:12:34,885 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:12:34,885 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:12:34,886 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2020-10-11 15:12:34,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e391c89/064ea775fdb846078370e9c80a373161/FLAG0a5170f2d [2020-10-11 15:12:35,549 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:12:35,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2020-10-11 15:12:35,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e391c89/064ea775fdb846078370e9c80a373161/FLAG0a5170f2d [2020-10-11 15:12:35,804 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e391c89/064ea775fdb846078370e9c80a373161 [2020-10-11 15:12:35,814 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:12:35,816 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:12:35,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:12:35,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:12:35,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:12:35,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:12:35" (1/1) ... [2020-10-11 15:12:35,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea0434e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:35, skipping insertion in model container [2020-10-11 15:12:35,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:12:35" (1/1) ... [2020-10-11 15:12:35,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:12:35,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:12:36,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:12:36,337 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:12:36,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:12:36,481 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:12:36,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:36 WrapperNode [2020-10-11 15:12:36,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:12:36,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:12:36,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:12:36,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:12:36,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:36" (1/1) ... [2020-10-11 15:12:36,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:36" (1/1) ... [2020-10-11 15:12:36,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:12:36,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:12:36,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:12:36,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:12:36,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:36" (1/1) ... [2020-10-11 15:12:36,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:36" (1/1) ... [2020-10-11 15:12:36,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:36" (1/1) ... [2020-10-11 15:12:36,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:36" (1/1) ... [2020-10-11 15:12:36,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:36" (1/1) ... [2020-10-11 15:12:36,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:36" (1/1) ... [2020-10-11 15:12:36,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:36" (1/1) ... [2020-10-11 15:12:36,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:12:36,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:12:36,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:12:36,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:12:36,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:36" (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 [2020-10-11 15:12:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:12:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:12:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:12:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:12:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:12:36,645 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:12:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:12:36,645 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:12:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:12:36,645 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:12:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-11 15:12:36,650 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-11 15:12:36,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:12:36,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:12:36,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:12:36,653 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:12:37,055 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:12:37,055 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:12:37,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:12:37 BoogieIcfgContainer [2020-10-11 15:12:37,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:12:37,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:12:37,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:12:37,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:12:37,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:12:35" (1/3) ... [2020-10-11 15:12:37,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c23f198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:12:37, skipping insertion in model container [2020-10-11 15:12:37,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:12:36" (2/3) ... [2020-10-11 15:12:37,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c23f198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:12:37, skipping insertion in model container [2020-10-11 15:12:37,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:12:37" (3/3) ... [2020-10-11 15:12:37,066 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.opt.i [2020-10-11 15:12:37,078 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:12:37,079 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:12:37,087 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:12:37,088 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:12:37,119 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,119 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,119 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,120 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,121 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,121 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,121 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,121 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,123 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,123 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,125 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,125 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,125 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,125 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,126 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,126 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,130 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,131 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,131 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,131 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,139 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,139 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,139 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,140 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,142 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,143 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,143 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,145 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,146 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,146 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,146 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:12:37,164 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 15:12:37,186 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:12:37,186 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:12:37,186 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:12:37,186 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:12:37,187 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:12:37,187 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:12:37,187 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:12:37,187 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:12:37,202 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:12:37,204 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-10-11 15:12:37,207 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 86 transitions, 192 flow [2020-10-11 15:12:37,209 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-10-11 15:12:37,262 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-10-11 15:12:37,262 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:12:37,270 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-10-11 15:12:37,274 INFO L117 LiptonReduction]: Number of co-enabled transitions 2016 [2020-10-11 15:12:38,860 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-11 15:12:38,928 INFO L132 LiptonReduction]: Checked pairs total: 4737 [2020-10-11 15:12:38,928 INFO L134 LiptonReduction]: Total number of compositions: 68 [2020-10-11 15:12:38,935 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-10-11 15:12:39,027 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-10-11 15:12:39,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-10-11 15:12:39,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 15:12:39,040 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:39,041 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:39,041 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:39,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:39,048 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-10-11 15:12:39,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:39,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433502032] [2020-10-11 15:12:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:39,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433502032] [2020-10-11 15:12:39,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:39,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:12:39,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844078890] [2020-10-11 15:12:39,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-11 15:12:39,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:39,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-11 15:12:39,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 15:12:39,268 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-10-11 15:12:39,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:39,337 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-10-11 15:12:39,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-11 15:12:39,339 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-11 15:12:39,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:39,400 INFO L225 Difference]: With dead ends: 1450 [2020-10-11 15:12:39,401 INFO L226 Difference]: Without dead ends: 1194 [2020-10-11 15:12:39,402 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 15:12:39,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-10-11 15:12:39,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-10-11 15:12:39,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-10-11 15:12:39,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-10-11 15:12:39,563 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-10-11 15:12:39,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:39,564 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-10-11 15:12:39,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-11 15:12:39,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-10-11 15:12:39,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 15:12:39,567 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:39,567 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:39,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:12:39,568 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:39,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:39,569 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-10-11 15:12:39,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:39,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965300695] [2020-10-11 15:12:39,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:39,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:39,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965300695] [2020-10-11 15:12:39,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:39,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:12:39,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043502781] [2020-10-11 15:12:39,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:12:39,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:39,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:12:39,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:12:39,716 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-10-11 15:12:39,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:39,759 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-10-11 15:12:39,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:12:39,760 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-11 15:12:39,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:39,770 INFO L225 Difference]: With dead ends: 1322 [2020-10-11 15:12:39,771 INFO L226 Difference]: Without dead ends: 1066 [2020-10-11 15:12:39,772 INFO L673 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 [2020-10-11 15:12:39,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-11 15:12:39,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-11 15:12:39,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-11 15:12:39,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-10-11 15:12:39,814 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-10-11 15:12:39,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:39,814 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-10-11 15:12:39,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:12:39,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-10-11 15:12:39,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:12:39,818 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:39,818 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:39,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:12:39,818 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:39,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:39,819 INFO L82 PathProgramCache]: Analyzing trace with hash -426404145, now seen corresponding path program 1 times [2020-10-11 15:12:39,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:39,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465316123] [2020-10-11 15:12:39,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:39,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:39,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465316123] [2020-10-11 15:12:39,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:39,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:12:39,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618614319] [2020-10-11 15:12:39,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:12:39,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:39,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:12:39,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:12:39,898 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-10-11 15:12:39,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:39,933 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-10-11 15:12:39,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:12:39,933 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 15:12:39,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:39,942 INFO L225 Difference]: With dead ends: 1162 [2020-10-11 15:12:39,943 INFO L226 Difference]: Without dead ends: 970 [2020-10-11 15:12:39,943 INFO L673 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 [2020-10-11 15:12:39,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-11 15:12:39,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-10-11 15:12:39,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-10-11 15:12:39,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-10-11 15:12:39,981 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-10-11 15:12:39,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:39,981 INFO L481 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-10-11 15:12:39,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:12:39,981 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-10-11 15:12:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-11 15:12:39,984 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:39,984 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:39,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:12:39,984 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:39,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:39,985 INFO L82 PathProgramCache]: Analyzing trace with hash 847962781, now seen corresponding path program 1 times [2020-10-11 15:12:39,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:39,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056471655] [2020-10-11 15:12:39,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:40,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:40,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056471655] [2020-10-11 15:12:40,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:40,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:12:40,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451539867] [2020-10-11 15:12:40,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:12:40,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:40,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:12:40,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:12:40,045 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 4 states. [2020-10-11 15:12:40,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:40,072 INFO L93 Difference]: Finished difference Result 1042 states and 3558 transitions. [2020-10-11 15:12:40,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:12:40,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-11 15:12:40,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:40,081 INFO L225 Difference]: With dead ends: 1042 [2020-10-11 15:12:40,081 INFO L226 Difference]: Without dead ends: 898 [2020-10-11 15:12:40,081 INFO L673 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 [2020-10-11 15:12:40,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-10-11 15:12:40,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2020-10-11 15:12:40,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-11 15:12:40,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 3114 transitions. [2020-10-11 15:12:40,115 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 3114 transitions. Word has length 13 [2020-10-11 15:12:40,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:40,115 INFO L481 AbstractCegarLoop]: Abstraction has 898 states and 3114 transitions. [2020-10-11 15:12:40,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:12:40,115 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 3114 transitions. [2020-10-11 15:12:40,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:12:40,117 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:40,117 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:40,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:12:40,118 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:40,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:40,118 INFO L82 PathProgramCache]: Analyzing trace with hash 517017440, now seen corresponding path program 1 times [2020-10-11 15:12:40,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:40,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804241268] [2020-10-11 15:12:40,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:40,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:40,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804241268] [2020-10-11 15:12:40,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:40,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:12:40,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418649475] [2020-10-11 15:12:40,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:12:40,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:40,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:12:40,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:12:40,179 INFO L87 Difference]: Start difference. First operand 898 states and 3114 transitions. Second operand 5 states. [2020-10-11 15:12:40,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:40,229 INFO L93 Difference]: Finished difference Result 1186 states and 3999 transitions. [2020-10-11 15:12:40,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:12:40,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-11 15:12:40,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:40,235 INFO L225 Difference]: With dead ends: 1186 [2020-10-11 15:12:40,235 INFO L226 Difference]: Without dead ends: 574 [2020-10-11 15:12:40,236 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-11 15:12:40,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-10-11 15:12:40,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2020-10-11 15:12:40,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2020-10-11 15:12:40,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 1836 transitions. [2020-10-11 15:12:40,260 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 1836 transitions. Word has length 14 [2020-10-11 15:12:40,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:40,261 INFO L481 AbstractCegarLoop]: Abstraction has 574 states and 1836 transitions. [2020-10-11 15:12:40,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:12:40,261 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 1836 transitions. [2020-10-11 15:12:40,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 15:12:40,263 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:40,263 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:40,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:12:40,264 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:40,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:40,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1594134132, now seen corresponding path program 1 times [2020-10-11 15:12:40,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:40,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715638692] [2020-10-11 15:12:40,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:40,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:40,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715638692] [2020-10-11 15:12:40,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:40,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:12:40,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642992285] [2020-10-11 15:12:40,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:12:40,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:40,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:12:40,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:12:40,384 INFO L87 Difference]: Start difference. First operand 574 states and 1836 transitions. Second operand 5 states. [2020-10-11 15:12:40,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:40,442 INFO L93 Difference]: Finished difference Result 694 states and 2162 transitions. [2020-10-11 15:12:40,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:12:40,443 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-11 15:12:40,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:40,448 INFO L225 Difference]: With dead ends: 694 [2020-10-11 15:12:40,449 INFO L226 Difference]: Without dead ends: 382 [2020-10-11 15:12:40,449 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-11 15:12:40,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-10-11 15:12:40,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2020-10-11 15:12:40,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-10-11 15:12:40,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 1116 transitions. [2020-10-11 15:12:40,465 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 1116 transitions. Word has length 15 [2020-10-11 15:12:40,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:40,465 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 1116 transitions. [2020-10-11 15:12:40,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:12:40,466 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 1116 transitions. [2020-10-11 15:12:40,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:12:40,468 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:40,468 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:40,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:12:40,469 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:40,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:40,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1339206906, now seen corresponding path program 1 times [2020-10-11 15:12:40,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:40,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756513731] [2020-10-11 15:12:40,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:40,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756513731] [2020-10-11 15:12:40,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:40,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:12:40,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547009689] [2020-10-11 15:12:40,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:12:40,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:40,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:12:40,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:12:40,547 INFO L87 Difference]: Start difference. First operand 382 states and 1116 transitions. Second operand 5 states. [2020-10-11 15:12:40,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:40,596 INFO L93 Difference]: Finished difference Result 466 states and 1344 transitions. [2020-10-11 15:12:40,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:12:40,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-11 15:12:40,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:40,598 INFO L225 Difference]: With dead ends: 466 [2020-10-11 15:12:40,598 INFO L226 Difference]: Without dead ends: 154 [2020-10-11 15:12:40,599 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-11 15:12:40,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-11 15:12:40,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-11 15:12:40,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-11 15:12:40,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 410 transitions. [2020-10-11 15:12:40,604 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 410 transitions. Word has length 17 [2020-10-11 15:12:40,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:40,605 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 410 transitions. [2020-10-11 15:12:40,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:12:40,605 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 410 transitions. [2020-10-11 15:12:40,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 15:12:40,606 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:12:40,606 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:12:40,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:12:40,606 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:12:40,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:12:40,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1157328918, now seen corresponding path program 1 times [2020-10-11 15:12:40,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:12:40,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396280130] [2020-10-11 15:12:40,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:12:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:12:40,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:12:40,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396280130] [2020-10-11 15:12:40,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:12:40,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:12:40,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77107659] [2020-10-11 15:12:40,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:12:40,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:12:40,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:12:40,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:12:40,686 INFO L87 Difference]: Start difference. First operand 154 states and 410 transitions. Second operand 5 states. [2020-10-11 15:12:40,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:12:40,717 INFO L93 Difference]: Finished difference Result 130 states and 334 transitions. [2020-10-11 15:12:40,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:12:40,718 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-11 15:12:40,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:12:40,718 INFO L225 Difference]: With dead ends: 130 [2020-10-11 15:12:40,719 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:12:40,719 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-11 15:12:40,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:12:40,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:12:40,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:12:40,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:12:40,720 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-11 15:12:40,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:12:40,720 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:12:40,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:12:40,721 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:12:40,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:12:40,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:12:40,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:12:40 BasicIcfg [2020-10-11 15:12:40,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:12:40,726 INFO L168 Benchmark]: Toolchain (without parser) took 4910.44 ms. Allocated memory was 250.6 MB in the beginning and 422.1 MB in the end (delta: 171.4 MB). Free memory was 205.3 MB in the beginning and 327.1 MB in the end (delta: -121.8 MB). Peak memory consumption was 49.6 MB. Max. memory is 14.2 GB. [2020-10-11 15:12:40,727 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:12:40,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.90 ms. Allocated memory was 250.6 MB in the beginning and 313.0 MB in the end (delta: 62.4 MB). Free memory was 205.3 MB in the beginning and 265.9 MB in the end (delta: -60.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.2 GB. [2020-10-11 15:12:40,729 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.81 ms. Allocated memory is still 313.0 MB. Free memory was 265.9 MB in the beginning and 263.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:12:40,729 INFO L168 Benchmark]: Boogie Preprocessor took 29.26 ms. Allocated memory is still 313.0 MB. Free memory is still 263.3 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:12:40,730 INFO L168 Benchmark]: RCFGBuilder took 495.06 ms. Allocated memory is still 313.0 MB. Free memory was 263.3 MB in the beginning and 236.5 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-11 15:12:40,731 INFO L168 Benchmark]: TraceAbstraction took 3665.49 ms. Allocated memory was 313.0 MB in the beginning and 422.1 MB in the end (delta: 109.1 MB). Free memory was 236.5 MB in the beginning and 327.1 MB in the end (delta: -90.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 14.2 GB. [2020-10-11 15:12:40,735 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 664.90 ms. Allocated memory was 250.6 MB in the beginning and 313.0 MB in the end (delta: 62.4 MB). Free memory was 205.3 MB in the beginning and 265.9 MB in the end (delta: -60.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 49.81 ms. Allocated memory is still 313.0 MB. Free memory was 265.9 MB in the beginning and 263.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 29.26 ms. Allocated memory is still 313.0 MB. Free memory is still 263.3 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 495.06 ms. Allocated memory is still 313.0 MB. Free memory was 263.3 MB in the beginning and 236.5 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3665.49 ms. Allocated memory was 313.0 MB in the beginning and 422.1 MB in the end (delta: 109.1 MB). Free memory was 236.5 MB in the beginning and 327.1 MB in the end (delta: -90.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1437 VarBasedMoverChecksPositive, 59 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 188 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 97 PlacesBefore, 41 PlacesAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 68 TotalNumberOfCompositions, 4737 MoverChecksTotal - 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 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 234 SDtfs, 267 SDslu, 327 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred 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: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 3999 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...