/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/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:35:20,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:35:20,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:35:20,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:35:20,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:35:20,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:35:20,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:35:20,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:35:20,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:35:20,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:35:20,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:35:20,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:35:20,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:35:20,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:35:20,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:35:20,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:35:20,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:35:20,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:35:20,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:35:20,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:35:20,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:35:20,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:35:20,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:35:20,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:35:20,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:35:20,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:35:20,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:35:20,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:35:20,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:35:20,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:35:20,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:35:20,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:35:20,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:35:20,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:35:20,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:35:20,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:35:20,440 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 [2020-10-15 18:35:20,463 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:35:20,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:35:20,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:35:20,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:35:20,466 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:35:20,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:35:20,466 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:35:20,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:35:20,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:35:20,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:35:20,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:35:20,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:35:20,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:35:20,467 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:35:20,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:35:20,468 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:35:20,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:35:20,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:35:20,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:35:20,470 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:35:20,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:35:20,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:35:20,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:35:20,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:35:20,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:35:20,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:35:20,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:35:20,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:35:20,472 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:35:20,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:35:20,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:35:20,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:35:20,814 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:35:20,815 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:35:20,816 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:35:20,816 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2020-10-15 18:35:20,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86c5e0dd5/69d6bc9d1a87409eba4de4f98fc81443/FLAGe40b09ea1 [2020-10-15 18:35:21,481 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:35:21,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2020-10-15 18:35:21,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86c5e0dd5/69d6bc9d1a87409eba4de4f98fc81443/FLAGe40b09ea1 [2020-10-15 18:35:21,701 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86c5e0dd5/69d6bc9d1a87409eba4de4f98fc81443 [2020-10-15 18:35:21,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:35:21,714 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:35:21,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:35:21,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:35:21,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:35:21,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:35:21" (1/1) ... [2020-10-15 18:35:21,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d62d0d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:21, skipping insertion in model container [2020-10-15 18:35:21,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:35:21" (1/1) ... [2020-10-15 18:35:21,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:35:21,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:35:22,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:35:22,338 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:35:22,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:35:22,468 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:35:22,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:22 WrapperNode [2020-10-15 18:35:22,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:35:22,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:35:22,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:35:22,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:35:22,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:22" (1/1) ... [2020-10-15 18:35:22,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:22" (1/1) ... [2020-10-15 18:35:22,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:35:22,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:35:22,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:35:22,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:35:22,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:22" (1/1) ... [2020-10-15 18:35:22,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:22" (1/1) ... [2020-10-15 18:35:22,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:22" (1/1) ... [2020-10-15 18:35:22,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:22" (1/1) ... [2020-10-15 18:35:22,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:22" (1/1) ... [2020-10-15 18:35:22,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:22" (1/1) ... [2020-10-15 18:35:22,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:22" (1/1) ... [2020-10-15 18:35:22,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:35:22,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:35:22,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:35:22,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:35:22,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:22" (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 [2020-10-15 18:35:22,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:35:22,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:35:22,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:35:22,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:35:22,612 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:35:22,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:35:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:35:22,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:35:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:35:22,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:35:22,613 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-15 18:35:22,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-15 18:35:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:35:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:35:22,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:35:22,616 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:35:22,973 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:35:22,973 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:35:22,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:35:22 BoogieIcfgContainer [2020-10-15 18:35:22,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:35:22,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:35:22,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:35:22,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:35:22,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:35:21" (1/3) ... [2020-10-15 18:35:22,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa32269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:35:22, skipping insertion in model container [2020-10-15 18:35:22,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:22" (2/3) ... [2020-10-15 18:35:22,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa32269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:35:22, skipping insertion in model container [2020-10-15 18:35:22,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:35:22" (3/3) ... [2020-10-15 18:35:22,985 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2020-10-15 18:35:22,998 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:35:22,998 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:35:23,005 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:35:23,007 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:35:23,043 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,044 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,044 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,046 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,046 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,046 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,046 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,048 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,048 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,048 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,048 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,049 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,049 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,049 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,050 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,050 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,050 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,050 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,051 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,055 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,055 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,055 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,055 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,061 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,061 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,061 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,062 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,064 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,064 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,065 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,067 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,067 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:35:23,084 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 18:35:23,106 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:35:23,106 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:35:23,107 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:35:23,107 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:35:23,107 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:35:23,107 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:35:23,107 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:35:23,107 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:35:23,120 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:35:23,122 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-15 18:35:23,124 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-15 18:35:23,126 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-10-15 18:35:23,174 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-15 18:35:23,174 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:35:23,180 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-15 18:35:23,184 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-15 18:35:24,862 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-15 18:35:25,111 INFO L132 LiptonReduction]: Checked pairs total: 3343 [2020-10-15 18:35:25,111 INFO L134 LiptonReduction]: Total number of compositions: 67 [2020-10-15 18:35:25,118 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-10-15 18:35:25,165 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-15 18:35:25,168 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-15 18:35:25,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:35:25,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:25,179 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:25,179 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:25,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:25,185 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-10-15 18:35:25,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:25,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897817832] [2020-10-15 18:35:25,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:25,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:25,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897817832] [2020-10-15 18:35:25,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:25,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:35:25,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926431691] [2020-10-15 18:35:25,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:35:25,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:25,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:35:25,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:25,462 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-15 18:35:25,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:25,525 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-15 18:35:25,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:35:25,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 18:35:25,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:25,551 INFO L225 Difference]: With dead ends: 670 [2020-10-15 18:35:25,552 INFO L226 Difference]: Without dead ends: 526 [2020-10-15 18:35:25,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:25,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-15 18:35:25,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-15 18:35:25,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-15 18:35:25,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-15 18:35:25,649 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-15 18:35:25,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:25,651 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-15 18:35:25,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:35:25,651 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-15 18:35:25,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:35:25,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:25,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:25,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:35:25,654 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:25,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:25,655 INFO L82 PathProgramCache]: Analyzing trace with hash -2027599793, now seen corresponding path program 1 times [2020-10-15 18:35:25,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:25,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109260824] [2020-10-15 18:35:25,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:25,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:25,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109260824] [2020-10-15 18:35:25,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:25,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:35:25,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037507761] [2020-10-15 18:35:25,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:25,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:25,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:25,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:25,729 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-15 18:35:25,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:25,761 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-10-15 18:35:25,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:35:25,761 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 18:35:25,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:25,766 INFO L225 Difference]: With dead ends: 682 [2020-10-15 18:35:25,766 INFO L226 Difference]: Without dead ends: 394 [2020-10-15 18:35:25,767 INFO L677 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 [2020-10-15 18:35:25,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-15 18:35:25,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-15 18:35:25,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-15 18:35:25,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-10-15 18:35:25,793 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-10-15 18:35:25,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:25,794 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-10-15 18:35:25,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:25,794 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-10-15 18:35:25,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:35:25,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:25,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:25,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:35:25,799 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:25,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:25,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1004375926, now seen corresponding path program 1 times [2020-10-15 18:35:25,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:25,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116904709] [2020-10-15 18:35:25,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:25,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:25,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116904709] [2020-10-15 18:35:25,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:25,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:35:25,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690799838] [2020-10-15 18:35:25,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:35:25,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:25,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:35:25,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:25,878 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-10-15 18:35:25,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:25,890 INFO L93 Difference]: Finished difference Result 386 states and 1190 transitions. [2020-10-15 18:35:25,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:35:25,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-15 18:35:25,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:25,895 INFO L225 Difference]: With dead ends: 386 [2020-10-15 18:35:25,895 INFO L226 Difference]: Without dead ends: 386 [2020-10-15 18:35:25,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:25,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-10-15 18:35:25,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2020-10-15 18:35:25,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-15 18:35:25,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1190 transitions. [2020-10-15 18:35:25,913 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1190 transitions. Word has length 12 [2020-10-15 18:35:25,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:25,913 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 1190 transitions. [2020-10-15 18:35:25,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:35:25,913 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1190 transitions. [2020-10-15 18:35:25,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:35:25,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:25,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:25,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:35:25,916 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:25,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:25,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1071238165, now seen corresponding path program 1 times [2020-10-15 18:35:25,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:25,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786116460] [2020-10-15 18:35:25,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:25,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:25,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786116460] [2020-10-15 18:35:25,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:25,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:35:25,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884451467] [2020-10-15 18:35:25,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:35:25,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:25,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:35:25,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:25,964 INFO L87 Difference]: Start difference. First operand 386 states and 1190 transitions. Second operand 3 states. [2020-10-15 18:35:25,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:25,979 INFO L93 Difference]: Finished difference Result 466 states and 1378 transitions. [2020-10-15 18:35:25,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:35:25,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-15 18:35:25,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:25,983 INFO L225 Difference]: With dead ends: 466 [2020-10-15 18:35:25,983 INFO L226 Difference]: Without dead ends: 402 [2020-10-15 18:35:25,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:25,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-10-15 18:35:25,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 370. [2020-10-15 18:35:25,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-15 18:35:26,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1098 transitions. [2020-10-15 18:35:26,002 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1098 transitions. Word has length 13 [2020-10-15 18:35:26,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:26,002 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1098 transitions. [2020-10-15 18:35:26,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:35:26,002 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1098 transitions. [2020-10-15 18:35:26,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:35:26,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:26,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:26,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:35:26,009 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:26,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:26,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1070883463, now seen corresponding path program 1 times [2020-10-15 18:35:26,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:26,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469382448] [2020-10-15 18:35:26,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:26,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469382448] [2020-10-15 18:35:26,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:26,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:35:26,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333126909] [2020-10-15 18:35:26,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:35:26,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:26,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:35:26,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:26,086 INFO L87 Difference]: Start difference. First operand 370 states and 1098 transitions. Second operand 3 states. [2020-10-15 18:35:26,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:26,094 INFO L93 Difference]: Finished difference Result 358 states and 1054 transitions. [2020-10-15 18:35:26,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:35:26,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-15 18:35:26,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:26,097 INFO L225 Difference]: With dead ends: 358 [2020-10-15 18:35:26,097 INFO L226 Difference]: Without dead ends: 358 [2020-10-15 18:35:26,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:35:26,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-15 18:35:26,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-10-15 18:35:26,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-15 18:35:26,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1054 transitions. [2020-10-15 18:35:26,110 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1054 transitions. Word has length 13 [2020-10-15 18:35:26,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:26,110 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 1054 transitions. [2020-10-15 18:35:26,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:35:26,110 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1054 transitions. [2020-10-15 18:35:26,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:35:26,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:26,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:26,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:35:26,113 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:26,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:26,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1189218785, now seen corresponding path program 1 times [2020-10-15 18:35:26,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:26,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833607319] [2020-10-15 18:35:26,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:26,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:26,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833607319] [2020-10-15 18:35:26,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:26,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:35:26,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546969100] [2020-10-15 18:35:26,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:26,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:26,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:26,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:26,153 INFO L87 Difference]: Start difference. First operand 358 states and 1054 transitions. Second operand 4 states. [2020-10-15 18:35:26,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:26,175 INFO L93 Difference]: Finished difference Result 514 states and 1482 transitions. [2020-10-15 18:35:26,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:35:26,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 18:35:26,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:26,178 INFO L225 Difference]: With dead ends: 514 [2020-10-15 18:35:26,178 INFO L226 Difference]: Without dead ends: 274 [2020-10-15 18:35:26,179 INFO L677 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 [2020-10-15 18:35:26,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-15 18:35:26,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-10-15 18:35:26,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-15 18:35:26,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 775 transitions. [2020-10-15 18:35:26,188 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 775 transitions. Word has length 14 [2020-10-15 18:35:26,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:26,188 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 775 transitions. [2020-10-15 18:35:26,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:26,189 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 775 transitions. [2020-10-15 18:35:26,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:35:26,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:26,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:26,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:35:26,190 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:26,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:26,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 2 times [2020-10-15 18:35:26,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:26,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433002326] [2020-10-15 18:35:26,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:26,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:26,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433002326] [2020-10-15 18:35:26,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:26,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:35:26,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445029771] [2020-10-15 18:35:26,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:26,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:26,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:26,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:26,263 INFO L87 Difference]: Start difference. First operand 274 states and 775 transitions. Second operand 4 states. [2020-10-15 18:35:26,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:26,302 INFO L93 Difference]: Finished difference Result 345 states and 911 transitions. [2020-10-15 18:35:26,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:35:26,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 18:35:26,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:26,304 INFO L225 Difference]: With dead ends: 345 [2020-10-15 18:35:26,304 INFO L226 Difference]: Without dead ends: 252 [2020-10-15 18:35:26,305 INFO L677 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 [2020-10-15 18:35:26,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-15 18:35:26,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-10-15 18:35:26,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-15 18:35:26,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 675 transitions. [2020-10-15 18:35:26,312 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 675 transitions. Word has length 14 [2020-10-15 18:35:26,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:26,313 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 675 transitions. [2020-10-15 18:35:26,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:26,313 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 675 transitions. [2020-10-15 18:35:26,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:35:26,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:26,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:26,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:35:26,315 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:26,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:26,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1647463604, now seen corresponding path program 1 times [2020-10-15 18:35:26,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:26,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422843136] [2020-10-15 18:35:26,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:26,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:26,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422843136] [2020-10-15 18:35:26,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:26,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:35:26,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448346453] [2020-10-15 18:35:26,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:35:26,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:26,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:35:26,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:35:26,386 INFO L87 Difference]: Start difference. First operand 252 states and 675 transitions. Second operand 5 states. [2020-10-15 18:35:26,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:26,455 INFO L93 Difference]: Finished difference Result 278 states and 685 transitions. [2020-10-15 18:35:26,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:35:26,456 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 18:35:26,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:26,458 INFO L225 Difference]: With dead ends: 278 [2020-10-15 18:35:26,458 INFO L226 Difference]: Without dead ends: 203 [2020-10-15 18:35:26,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:35:26,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-15 18:35:26,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-10-15 18:35:26,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-15 18:35:26,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 492 transitions. [2020-10-15 18:35:26,473 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 492 transitions. Word has length 15 [2020-10-15 18:35:26,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:26,474 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 492 transitions. [2020-10-15 18:35:26,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:35:26,474 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 492 transitions. [2020-10-15 18:35:26,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 18:35:26,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:26,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:26,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:35:26,475 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:26,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:26,476 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-10-15 18:35:26,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:26,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660085146] [2020-10-15 18:35:26,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:26,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:26,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660085146] [2020-10-15 18:35:26,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:26,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:35:26,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182512002] [2020-10-15 18:35:26,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:35:26,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:26,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:35:26,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:35:26,597 INFO L87 Difference]: Start difference. First operand 203 states and 492 transitions. Second operand 6 states. [2020-10-15 18:35:26,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:26,665 INFO L93 Difference]: Finished difference Result 200 states and 461 transitions. [2020-10-15 18:35:26,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:35:26,666 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-15 18:35:26,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:26,667 INFO L225 Difference]: With dead ends: 200 [2020-10-15 18:35:26,667 INFO L226 Difference]: Without dead ends: 162 [2020-10-15 18:35:26,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:35:26,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-15 18:35:26,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-15 18:35:26,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-15 18:35:26,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 375 transitions. [2020-10-15 18:35:26,675 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 375 transitions. Word has length 16 [2020-10-15 18:35:26,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:26,676 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 375 transitions. [2020-10-15 18:35:26,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:35:26,676 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 375 transitions. [2020-10-15 18:35:26,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 18:35:26,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:26,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:26,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 18:35:26,678 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:26,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:26,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1305224855, now seen corresponding path program 1 times [2020-10-15 18:35:26,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:26,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618382832] [2020-10-15 18:35:26,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:26,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:26,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618382832] [2020-10-15 18:35:26,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:26,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:35:26,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077792513] [2020-10-15 18:35:26,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:26,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:26,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:26,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:26,723 INFO L87 Difference]: Start difference. First operand 162 states and 375 transitions. Second operand 4 states. [2020-10-15 18:35:26,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:26,740 INFO L93 Difference]: Finished difference Result 194 states and 439 transitions. [2020-10-15 18:35:26,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:35:26,740 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-15 18:35:26,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:26,741 INFO L225 Difference]: With dead ends: 194 [2020-10-15 18:35:26,742 INFO L226 Difference]: Without dead ends: 127 [2020-10-15 18:35:26,742 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:35:26,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-15 18:35:26,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-10-15 18:35:26,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-15 18:35:26,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-10-15 18:35:26,746 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-10-15 18:35:26,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:26,747 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-10-15 18:35:26,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:26,748 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-10-15 18:35:26,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 18:35:26,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:26,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:26,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 18:35:26,749 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:26,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:26,749 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 2 times [2020-10-15 18:35:26,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:26,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330376289] [2020-10-15 18:35:26,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:26,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:26,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330376289] [2020-10-15 18:35:26,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:26,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:35:26,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653581432] [2020-10-15 18:35:26,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:35:26,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:26,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:35:26,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:35:26,834 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-10-15 18:35:26,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:26,913 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-10-15 18:35:26,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 18:35:26,913 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-15 18:35:26,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:26,914 INFO L225 Difference]: With dead ends: 120 [2020-10-15 18:35:26,914 INFO L226 Difference]: Without dead ends: 71 [2020-10-15 18:35:26,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:35:26,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-15 18:35:26,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-15 18:35:26,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-15 18:35:26,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-10-15 18:35:26,917 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-10-15 18:35:26,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:26,918 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-10-15 18:35:26,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:35:26,918 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-10-15 18:35:26,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-15 18:35:26,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:35:26,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:35:26,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 18:35:26,919 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:35:26,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:35:26,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-10-15 18:35:26,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:35:26,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317664296] [2020-10-15 18:35:26,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:35:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:35:26,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:35:26,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317664296] [2020-10-15 18:35:26,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:35:26,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:35:26,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646193030] [2020-10-15 18:35:26,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:35:26,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:35:26,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:35:26,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:35:26,955 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-10-15 18:35:26,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:35:26,969 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-10-15 18:35:26,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:35:26,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-15 18:35:26,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:35:26,970 INFO L225 Difference]: With dead ends: 70 [2020-10-15 18:35:26,970 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:35:26,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:35:26,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:35:26,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:35:26,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:35:26,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:35:26,971 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-15 18:35:26,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:35:26,972 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:35:26,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:35:26,972 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:35:26,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:35:26,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 18:35:26,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:35:26 BasicIcfg [2020-10-15 18:35:26,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:35:26,978 INFO L168 Benchmark]: Toolchain (without parser) took 5263.91 ms. Allocated memory was 252.7 MB in the beginning and 428.9 MB in the end (delta: 176.2 MB). Free memory was 208.7 MB in the beginning and 321.1 MB in the end (delta: -112.4 MB). Peak memory consumption was 63.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:26,978 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 252.7 MB. Free memory was 230.8 MB in the beginning and 229.9 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. [2020-10-15 18:35:26,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.77 ms. Allocated memory was 252.7 MB in the beginning and 316.7 MB in the end (delta: 64.0 MB). Free memory was 207.8 MB in the beginning and 271.3 MB in the end (delta: -63.5 MB). Peak memory consumption was 32.1 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:26,980 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.61 ms. Allocated memory is still 316.7 MB. Free memory was 271.3 MB in the beginning and 268.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:26,981 INFO L168 Benchmark]: Boogie Preprocessor took 26.15 ms. Allocated memory is still 316.7 MB. Free memory was 268.8 MB in the beginning and 267.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:26,981 INFO L168 Benchmark]: RCFGBuilder took 427.58 ms. Allocated memory is still 316.7 MB. Free memory was 267.1 MB in the beginning and 242.6 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:26,982 INFO L168 Benchmark]: TraceAbstraction took 3998.67 ms. Allocated memory was 316.7 MB in the beginning and 428.9 MB in the end (delta: 112.2 MB). Free memory was 242.6 MB in the beginning and 321.1 MB in the end (delta: -78.5 MB). Peak memory consumption was 33.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:35:26,986 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 252.7 MB. Free memory was 230.8 MB in the beginning and 229.9 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 753.77 ms. Allocated memory was 252.7 MB in the beginning and 316.7 MB in the end (delta: 64.0 MB). Free memory was 207.8 MB in the beginning and 271.3 MB in the end (delta: -63.5 MB). Peak memory consumption was 32.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 51.61 ms. Allocated memory is still 316.7 MB. Free memory was 271.3 MB in the beginning and 268.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.15 ms. Allocated memory is still 316.7 MB. Free memory was 268.8 MB in the beginning and 267.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 427.58 ms. Allocated memory is still 316.7 MB. Free memory was 267.1 MB in the beginning and 242.6 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3998.67 ms. Allocated memory was 316.7 MB in the beginning and 428.9 MB in the end (delta: 112.2 MB). Free memory was 242.6 MB in the beginning and 321.1 MB in the end (delta: -78.5 MB). Peak memory consumption was 33.7 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1203 VarBasedMoverChecksPositive, 62 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 104 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 92 PlacesBefore, 38 PlacesAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 3343 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, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 258 SDtfs, 237 SDslu, 349 SDs, 0 SdLazy, 196 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 12 MinimizatonAttempts, 34 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 6430 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...