/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/safe015_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:05:02,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:05:02,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:05:02,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:05:02,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:05:02,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:05:02,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:05:02,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:05:02,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:05:02,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:05:02,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:05:02,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:05:02,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:05:02,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:05:02,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:05:02,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:05:02,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:05:02,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:05:02,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:05:02,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:05:02,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:05:02,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:05:02,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:05:02,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:05:02,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 15:05:02,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 15:05:02,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 15:05:02,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 15:05:02,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 15:05:02,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 15:05:02,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:05:02,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:05:02,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:05:02,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:05:02,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:05:02,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:05:02,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:05:02,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:05:02,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:05:02,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:05:02,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:05:02,547 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 15:05:02,568 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:05:02,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:05:02,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:05:02,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:05:02,573 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:05:02,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:05:02,573 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:05:02,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:05:02,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:05:02,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:05:02,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:05:02,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:05:02,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:05:02,575 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:05:02,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:05:02,575 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:05:02,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:05:02,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:05:02,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:05:02,576 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:05:02,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:05:02,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:05:02,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:05:02,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:05:02,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:05:02,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:05:02,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:05:02,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:05:02,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:05:02,580 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:05:02,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:05:02,898 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:05:02,902 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:05:02,903 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:05:02,903 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:05:02,904 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2020-10-11 15:05:02,954 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e733c1a5c/8ce355cc7fdd489bb55d581ad03335e2/FLAG4348c0958 [2020-10-11 15:05:03,433 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:05:03,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2020-10-11 15:05:03,449 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e733c1a5c/8ce355cc7fdd489bb55d581ad03335e2/FLAG4348c0958 [2020-10-11 15:05:03,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e733c1a5c/8ce355cc7fdd489bb55d581ad03335e2 [2020-10-11 15:05:03,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:05:03,714 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:05:03,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:05:03,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:05:03,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:05:03,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:05:03" (1/1) ... [2020-10-11 15:05:03,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710bb988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:03, skipping insertion in model container [2020-10-11 15:05:03,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:05:03" (1/1) ... [2020-10-11 15:05:03,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:05:03,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:05:04,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:05:04,282 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:05:04,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:05:04,450 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:05:04,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:04 WrapperNode [2020-10-11 15:05:04,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:05:04,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:05:04,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:05:04,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:05:04,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:04" (1/1) ... [2020-10-11 15:05:04,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:04" (1/1) ... [2020-10-11 15:05:04,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:05:04,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:05:04,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:05:04,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:05:04,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:04" (1/1) ... [2020-10-11 15:05:04,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:04" (1/1) ... [2020-10-11 15:05:04,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:04" (1/1) ... [2020-10-11 15:05:04,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:04" (1/1) ... [2020-10-11 15:05:04,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:04" (1/1) ... [2020-10-11 15:05:04,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:04" (1/1) ... [2020-10-11 15:05:04,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:04" (1/1) ... [2020-10-11 15:05:04,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:05:04,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:05:04,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:05:04,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:05:04,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:04" (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 15:05:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:05:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:05:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:05:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:05:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:05:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:05:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:05:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:05:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:05:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:05:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:05:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:05:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:05:04,600 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 15:05:04,942 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:05:04,942 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:05:04,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:05:04 BoogieIcfgContainer [2020-10-11 15:05:04,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:05:04,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:05:04,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:05:04,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:05:04,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:05:03" (1/3) ... [2020-10-11 15:05:04,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f68dfa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:05:04, skipping insertion in model container [2020-10-11 15:05:04,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:04" (2/3) ... [2020-10-11 15:05:04,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f68dfa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:05:04, skipping insertion in model container [2020-10-11 15:05:04,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:05:04" (3/3) ... [2020-10-11 15:05:04,952 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc.i [2020-10-11 15:05:04,963 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:05:04,963 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:05:04,970 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:05:04,971 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:05:04,995 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:04,995 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:04,996 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:04,996 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:04,996 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:04,997 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:04,997 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:04,997 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:04,997 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:04,998 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:04,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:04,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:04,999 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:04,999 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:04,999 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:04,999 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:05,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:05,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:05,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:05,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:05,004 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:05,004 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:05,009 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:05,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:05,010 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:05,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:05,012 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:05,013 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:05,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:05,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:05,028 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 15:05:05,047 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:05:05,048 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:05:05,048 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:05:05,048 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:05:05,048 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:05:05,048 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:05:05,049 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:05:05,049 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:05:05,061 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:05:05,064 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-11 15:05:05,067 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-11 15:05:05,069 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-11 15:05:05,110 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-11 15:05:05,110 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:05:05,115 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-11 15:05:05,118 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-11 15:05:06,568 INFO L132 LiptonReduction]: Checked pairs total: 2962 [2020-10-11 15:05:06,568 INFO L134 LiptonReduction]: Total number of compositions: 59 [2020-10-11 15:05:06,575 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-11 15:05:06,602 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-11 15:05:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-11 15:05:06,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 15:05:06,613 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:06,613 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:06,614 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:06,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:06,620 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-10-11 15:05:06,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:06,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027370039] [2020-10-11 15:05:06,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:06,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:05:06,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027370039] [2020-10-11 15:05:06,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:06,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:05:06,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10007455] [2020-10-11 15:05:06,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:05:06,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:06,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:05:06,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:05:06,864 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-11 15:05:06,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:06,952 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-11 15:05:06,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:05:06,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-11 15:05:06,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:06,979 INFO L225 Difference]: With dead ends: 282 [2020-10-11 15:05:06,979 INFO L226 Difference]: Without dead ends: 218 [2020-10-11 15:05:06,981 INFO L673 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 [2020-10-11 15:05:07,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-11 15:05:07,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-11 15:05:07,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-11 15:05:07,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-11 15:05:07,064 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-11 15:05:07,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:07,065 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-11 15:05:07,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:05:07,073 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-11 15:05:07,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 15:05:07,077 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:07,077 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:07,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:05:07,080 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:07,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:07,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-10-11 15:05:07,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:07,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478418455] [2020-10-11 15:05:07,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:07,169 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 15:05:07,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478418455] [2020-10-11 15:05:07,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:07,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:05:07,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918668370] [2020-10-11 15:05:07,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:05:07,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:07,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:05:07,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:05:07,173 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-10-11 15:05:07,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:07,188 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-11 15:05:07,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:05:07,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-11 15:05:07,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:07,192 INFO L225 Difference]: With dead ends: 202 [2020-10-11 15:05:07,192 INFO L226 Difference]: Without dead ends: 202 [2020-10-11 15:05:07,193 INFO L673 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 [2020-10-11 15:05:07,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-11 15:05:07,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-11 15:05:07,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-11 15:05:07,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-11 15:05:07,209 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-11 15:05:07,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:07,209 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-11 15:05:07,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:05:07,209 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-11 15:05:07,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 15:05:07,211 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:07,211 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:07,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:05:07,211 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:07,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:07,212 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-10-11 15:05:07,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:07,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033212134] [2020-10-11 15:05:07,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:07,277 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 15:05:07,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033212134] [2020-10-11 15:05:07,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:07,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:05:07,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107557047] [2020-10-11 15:05:07,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:05:07,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:07,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:05:07,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:05:07,280 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-11 15:05:07,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:07,290 INFO L93 Difference]: Finished difference Result 198 states and 530 transitions. [2020-10-11 15:05:07,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:05:07,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-11 15:05:07,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:07,293 INFO L225 Difference]: With dead ends: 198 [2020-10-11 15:05:07,293 INFO L226 Difference]: Without dead ends: 198 [2020-10-11 15:05:07,294 INFO L673 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 [2020-10-11 15:05:07,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-11 15:05:07,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-11 15:05:07,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-11 15:05:07,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 530 transitions. [2020-10-11 15:05:07,308 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 530 transitions. Word has length 10 [2020-10-11 15:05:07,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:07,308 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 530 transitions. [2020-10-11 15:05:07,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:05:07,308 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 530 transitions. [2020-10-11 15:05:07,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 15:05:07,310 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:07,310 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:07,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:05:07,310 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:07,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:07,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1571968161, now seen corresponding path program 1 times [2020-10-11 15:05:07,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:07,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752415988] [2020-10-11 15:05:07,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:07,351 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 15:05:07,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752415988] [2020-10-11 15:05:07,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:07,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:05:07,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761470064] [2020-10-11 15:05:07,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:05:07,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:07,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:05:07,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:05:07,354 INFO L87 Difference]: Start difference. First operand 198 states and 530 transitions. Second operand 3 states. [2020-10-11 15:05:07,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:07,359 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-10-11 15:05:07,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:05:07,360 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-11 15:05:07,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:07,362 INFO L225 Difference]: With dead ends: 192 [2020-10-11 15:05:07,362 INFO L226 Difference]: Without dead ends: 192 [2020-10-11 15:05:07,362 INFO L673 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 [2020-10-11 15:05:07,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-11 15:05:07,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-10-11 15:05:07,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-11 15:05:07,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-10-11 15:05:07,374 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-10-11 15:05:07,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:07,375 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-10-11 15:05:07,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:05:07,375 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-10-11 15:05:07,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:05:07,376 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:07,377 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:07,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:05:07,377 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:07,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:07,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-10-11 15:05:07,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:07,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584790512] [2020-10-11 15:05:07,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:07,464 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 15:05:07,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584790512] [2020-10-11 15:05:07,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:07,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:05:07,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935513822] [2020-10-11 15:05:07,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:05:07,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:07,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:05:07,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:05:07,469 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 4 states. [2020-10-11 15:05:07,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:07,518 INFO L93 Difference]: Finished difference Result 224 states and 554 transitions. [2020-10-11 15:05:07,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:05:07,519 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 15:05:07,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:07,520 INFO L225 Difference]: With dead ends: 224 [2020-10-11 15:05:07,521 INFO L226 Difference]: Without dead ends: 160 [2020-10-11 15:05:07,521 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 15:05:07,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-11 15:05:07,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-10-11 15:05:07,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-11 15:05:07,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 383 transitions. [2020-10-11 15:05:07,535 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 383 transitions. Word has length 12 [2020-10-11 15:05:07,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:07,536 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 383 transitions. [2020-10-11 15:05:07,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:05:07,536 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 383 transitions. [2020-10-11 15:05:07,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-11 15:05:07,537 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:07,537 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:07,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:05:07,538 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:07,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:07,538 INFO L82 PathProgramCache]: Analyzing trace with hash 887113091, now seen corresponding path program 1 times [2020-10-11 15:05:07,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:07,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280894349] [2020-10-11 15:05:07,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:07,601 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 15:05:07,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280894349] [2020-10-11 15:05:07,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:07,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:05:07,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978168279] [2020-10-11 15:05:07,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:05:07,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:07,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:05:07,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:05:07,603 INFO L87 Difference]: Start difference. First operand 160 states and 383 transitions. Second operand 5 states. [2020-10-11 15:05:07,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:07,642 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-10-11 15:05:07,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:05:07,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-11 15:05:07,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:07,644 INFO L225 Difference]: With dead ends: 160 [2020-10-11 15:05:07,644 INFO L226 Difference]: Without dead ends: 123 [2020-10-11 15:05:07,645 INFO L673 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 [2020-10-11 15:05:07,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-11 15:05:07,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-10-11 15:05:07,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-11 15:05:07,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-10-11 15:05:07,650 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 13 [2020-10-11 15:05:07,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:07,650 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-10-11 15:05:07,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:05:07,650 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-10-11 15:05:07,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:05:07,651 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:07,651 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:07,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:05:07,652 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:07,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:07,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-10-11 15:05:07,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:07,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400162066] [2020-10-11 15:05:07,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:07,677 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 15:05:07,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400162066] [2020-10-11 15:05:07,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:07,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:05:07,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589834533] [2020-10-11 15:05:07,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:05:07,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:07,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:05:07,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:05:07,680 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 3 states. [2020-10-11 15:05:07,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:07,687 INFO L93 Difference]: Finished difference Result 155 states and 330 transitions. [2020-10-11 15:05:07,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:05:07,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-11 15:05:07,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:07,689 INFO L225 Difference]: With dead ends: 155 [2020-10-11 15:05:07,689 INFO L226 Difference]: Without dead ends: 124 [2020-10-11 15:05:07,689 INFO L673 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 [2020-10-11 15:05:07,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-11 15:05:07,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-10-11 15:05:07,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-11 15:05:07,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 257 transitions. [2020-10-11 15:05:07,693 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 257 transitions. Word has length 14 [2020-10-11 15:05:07,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:07,694 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 257 transitions. [2020-10-11 15:05:07,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:05:07,694 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 257 transitions. [2020-10-11 15:05:07,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 15:05:07,695 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:07,695 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:07,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:05:07,695 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:07,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:07,696 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-10-11 15:05:07,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:07,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070009441] [2020-10-11 15:05:07,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:07,728 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 15:05:07,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070009441] [2020-10-11 15:05:07,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:07,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:05:07,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129127391] [2020-10-11 15:05:07,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:05:07,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:07,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:05:07,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:05:07,731 INFO L87 Difference]: Start difference. First operand 122 states and 257 transitions. Second operand 4 states. [2020-10-11 15:05:07,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:07,754 INFO L93 Difference]: Finished difference Result 154 states and 308 transitions. [2020-10-11 15:05:07,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:05:07,754 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-11 15:05:07,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:07,755 INFO L225 Difference]: With dead ends: 154 [2020-10-11 15:05:07,755 INFO L226 Difference]: Without dead ends: 116 [2020-10-11 15:05:07,756 INFO L673 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 [2020-10-11 15:05:07,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-11 15:05:07,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-10-11 15:05:07,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-11 15:05:07,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 222 transitions. [2020-10-11 15:05:07,760 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 222 transitions. Word has length 15 [2020-10-11 15:05:07,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:07,760 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 222 transitions. [2020-10-11 15:05:07,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:05:07,760 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 222 transitions. [2020-10-11 15:05:07,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 15:05:07,761 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:07,761 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:07,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:05:07,765 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:07,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:07,766 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-10-11 15:05:07,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:07,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162160650] [2020-10-11 15:05:07,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:07,833 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 15:05:07,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162160650] [2020-10-11 15:05:07,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:07,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:05:07,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266984894] [2020-10-11 15:05:07,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 15:05:07,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:07,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 15:05:07,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:05:07,836 INFO L87 Difference]: Start difference. First operand 114 states and 222 transitions. Second operand 6 states. [2020-10-11 15:05:07,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:07,885 INFO L93 Difference]: Finished difference Result 110 states and 212 transitions. [2020-10-11 15:05:07,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:05:07,886 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-11 15:05:07,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:07,887 INFO L225 Difference]: With dead ends: 110 [2020-10-11 15:05:07,887 INFO L226 Difference]: Without dead ends: 38 [2020-10-11 15:05:07,887 INFO L673 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 [2020-10-11 15:05:07,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-11 15:05:07,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-11 15:05:07,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-11 15:05:07,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-10-11 15:05:07,889 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 15 [2020-10-11 15:05:07,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:07,889 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-10-11 15:05:07,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 15:05:07,890 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-10-11 15:05:07,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:05:07,890 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:07,890 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 15:05:07,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 15:05:07,891 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:07,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:07,891 INFO L82 PathProgramCache]: Analyzing trace with hash 13395029, now seen corresponding path program 1 times [2020-10-11 15:05:07,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:07,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424003393] [2020-10-11 15:05:07,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:07,922 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 15:05:07,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424003393] [2020-10-11 15:05:07,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:07,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:05:07,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449345413] [2020-10-11 15:05:07,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:05:07,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:07,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:05:07,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:05:07,924 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-10-11 15:05:07,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:07,939 INFO L93 Difference]: Finished difference Result 51 states and 83 transitions. [2020-10-11 15:05:07,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:05:07,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:05:07,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:07,940 INFO L225 Difference]: With dead ends: 51 [2020-10-11 15:05:07,940 INFO L226 Difference]: Without dead ends: 30 [2020-10-11 15:05:07,940 INFO L673 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 [2020-10-11 15:05:07,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-11 15:05:07,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-11 15:05:07,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-11 15:05:07,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-11 15:05:07,942 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-11 15:05:07,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:07,942 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-11 15:05:07,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:05:07,943 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-11 15:05:07,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:05:07,943 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:07,943 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 15:05:07,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 15:05:07,943 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:07,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:07,944 INFO L82 PathProgramCache]: Analyzing trace with hash -34011261, now seen corresponding path program 2 times [2020-10-11 15:05:07,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:07,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577675941] [2020-10-11 15:05:07,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:07,973 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 15:05:07,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577675941] [2020-10-11 15:05:07,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:07,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:05:07,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324152304] [2020-10-11 15:05:07,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:05:07,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:07,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:05:07,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:05:07,975 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-11 15:05:07,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:07,987 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-11 15:05:07,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:05:07,988 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:05:07,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:07,988 INFO L225 Difference]: With dead ends: 29 [2020-10-11 15:05:07,988 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:05:07,989 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 15:05:07,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:05:07,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:05:07,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:05:07,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:05:07,990 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-11 15:05:07,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:07,990 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:05:07,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:05:07,990 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:05:07,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:05:07,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 15:05:07,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:05:07 BasicIcfg [2020-10-11 15:05:07,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:05:07,997 INFO L168 Benchmark]: Toolchain (without parser) took 4282.33 ms. Allocated memory was 248.5 MB in the beginning and 367.5 MB in the end (delta: 119.0 MB). Free memory was 203.7 MB in the beginning and 215.6 MB in the end (delta: -12.0 MB). Peak memory consumption was 107.1 MB. Max. memory is 14.2 GB. [2020-10-11 15:05:07,997 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 248.5 MB. Free memory is still 224.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:05:07,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.43 ms. Allocated memory was 248.5 MB in the beginning and 305.7 MB in the end (delta: 57.1 MB). Free memory was 203.7 MB in the beginning and 259.1 MB in the end (delta: -55.4 MB). Peak memory consumption was 29.2 MB. Max. memory is 14.2 GB. [2020-10-11 15:05:07,999 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.81 ms. Allocated memory is still 305.7 MB. Free memory was 259.1 MB in the beginning and 256.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:05:08,000 INFO L168 Benchmark]: Boogie Preprocessor took 23.69 ms. Allocated memory is still 305.7 MB. Free memory was 256.6 MB in the beginning and 254.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:05:08,001 INFO L168 Benchmark]: RCFGBuilder took 411.90 ms. Allocated memory is still 305.7 MB. Free memory was 254.1 MB in the beginning and 232.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-11 15:05:08,001 INFO L168 Benchmark]: TraceAbstraction took 3049.04 ms. Allocated memory was 305.7 MB in the beginning and 367.5 MB in the end (delta: 61.9 MB). Free memory was 232.2 MB in the beginning and 215.6 MB in the end (delta: 16.6 MB). Peak memory consumption was 78.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:05:08,005 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 248.5 MB. Free memory is still 224.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 736.43 ms. Allocated memory was 248.5 MB in the beginning and 305.7 MB in the end (delta: 57.1 MB). Free memory was 203.7 MB in the beginning and 259.1 MB in the end (delta: -55.4 MB). Peak memory consumption was 29.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 55.81 ms. Allocated memory is still 305.7 MB. Free memory was 259.1 MB in the beginning and 256.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 23.69 ms. Allocated memory is still 305.7 MB. Free memory was 256.6 MB in the beginning and 254.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 411.90 ms. Allocated memory is still 305.7 MB. Free memory was 254.1 MB in the beginning and 232.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3049.04 ms. Allocated memory was 305.7 MB in the beginning and 367.5 MB in the end (delta: 61.9 MB). Free memory was 232.2 MB in the beginning and 215.6 MB in the end (delta: 16.6 MB). Peak memory consumption was 78.5 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 824 VarBasedMoverChecksPositive, 47 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 58 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 77 PlacesBefore, 31 PlacesAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 2962 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 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 216 SDtfs, 131 SDslu, 232 SDs, 0 SdLazy, 130 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 11 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 4600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...