/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:05:44,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:05:44,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:05:44,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:05:44,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:05:44,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:05:44,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:05:44,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:05:44,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:05:44,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:05:44,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:05:44,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:05:44,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:05:44,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:05:44,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:05:44,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:05:44,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:05:44,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:05:44,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:05:44,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:05:44,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:05:44,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:05:44,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:05:44,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:05:44,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:05:44,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:05:44,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:05:44,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:05:44,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:05:44,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:05:44,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:05:44,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:05:44,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:05:44,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:05:44,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:05:44,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:05:44,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:05:44,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:05:44,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:05:44,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:05:44,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:05:44,578 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 [2020-10-21 22:05:44,610 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:05:44,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:05:44,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:05:44,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:05:44,613 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:05:44,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:05:44,614 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:05:44,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:05:44,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:05:44,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:05:44,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:05:44,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:05:44,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:05:44,616 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:05:44,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:05:44,617 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:05:44,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:05:44,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:05:44,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:05:44,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:05:44,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:05:44,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:05:44,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:05:44,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:05:44,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:05:44,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:05:44,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:05:44,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:05:44,619 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:05:44,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:05:44,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:05:44,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:05:44,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:05:44,927 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:05:44,927 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:05:44,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-10-21 22:05:44,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f33a7397f/7045dc5eaf1e40068c8102792900d781/FLAG71cdda7c4 [2020-10-21 22:05:45,439 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:05:45,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-10-21 22:05:45,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f33a7397f/7045dc5eaf1e40068c8102792900d781/FLAG71cdda7c4 [2020-10-21 22:05:45,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f33a7397f/7045dc5eaf1e40068c8102792900d781 [2020-10-21 22:05:45,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:05:45,756 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:05:45,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:05:45,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:05:45,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:05:45,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:05:45" (1/1) ... [2020-10-21 22:05:45,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b78df58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:45, skipping insertion in model container [2020-10-21 22:05:45,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:05:45" (1/1) ... [2020-10-21 22:05:45,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:05:45,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:05:46,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:05:46,316 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:05:46,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:05:46,464 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:05:46,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:46 WrapperNode [2020-10-21 22:05:46,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:05:46,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:05:46,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:05:46,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:05:46,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:46" (1/1) ... [2020-10-21 22:05:46,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:46" (1/1) ... [2020-10-21 22:05:46,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:05:46,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:05:46,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:05:46,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:05:46,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:46" (1/1) ... [2020-10-21 22:05:46,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:46" (1/1) ... [2020-10-21 22:05:46,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:46" (1/1) ... [2020-10-21 22:05:46,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:46" (1/1) ... [2020-10-21 22:05:46,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:46" (1/1) ... [2020-10-21 22:05:46,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:46" (1/1) ... [2020-10-21 22:05:46,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:46" (1/1) ... [2020-10-21 22:05:46,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:05:46,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:05:46,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:05:46,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:05:46,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:46" (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 [2020-10-21 22:05:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:05:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:05:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:05:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:05:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 22:05:46,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 22:05:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 22:05:46,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 22:05:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 22:05:46,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 22:05:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-21 22:05:46,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-21 22:05:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:05:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:05:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:05:46,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:05:46,617 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:05:46,988 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:05:46,988 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 22:05:46,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:05:46 BoogieIcfgContainer [2020-10-21 22:05:46,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:05:46,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:05:46,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:05:46,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:05:46,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:05:45" (1/3) ... [2020-10-21 22:05:46,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fed5043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:05:46, skipping insertion in model container [2020-10-21 22:05:46,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:46" (2/3) ... [2020-10-21 22:05:46,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fed5043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:05:46, skipping insertion in model container [2020-10-21 22:05:46,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:05:46" (3/3) ... [2020-10-21 22:05:47,000 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2020-10-21 22:05:47,011 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:05:47,012 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:05:47,020 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:05:47,021 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:05:47,050 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,051 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,051 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,052 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,052 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,052 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,053 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,053 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,054 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,054 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,054 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,055 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,056 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,056 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,057 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,057 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,057 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,058 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,058 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,058 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,062 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,062 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,069 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,069 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,072 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,072 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,072 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,072 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,074 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,075 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:47,077 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:05:47,090 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-21 22:05:47,110 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:05:47,110 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:05:47,110 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:05:47,110 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:05:47,110 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:05:47,111 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:05:47,111 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:05:47,111 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:05:47,125 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:05:47,128 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 95 transitions, 210 flow [2020-10-21 22:05:47,130 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 95 transitions, 210 flow [2020-10-21 22:05:47,132 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 105 places, 95 transitions, 210 flow [2020-10-21 22:05:47,190 INFO L129 PetriNetUnfolder]: 3/91 cut-off events. [2020-10-21 22:05:47,191 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 22:05:47,196 INFO L80 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2020-10-21 22:05:47,200 INFO L116 LiptonReduction]: Number of co-enabled transitions 2256 [2020-10-21 22:05:49,317 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-21 22:05:49,470 INFO L131 LiptonReduction]: Checked pairs total: 4418 [2020-10-21 22:05:49,470 INFO L133 LiptonReduction]: Total number of compositions: 80 [2020-10-21 22:05:49,477 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-10-21 22:05:49,568 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-10-21 22:05:49,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-10-21 22:05:49,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 22:05:49,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:49,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:49,582 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:49,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:49,588 INFO L82 PathProgramCache]: Analyzing trace with hash 481695671, now seen corresponding path program 1 times [2020-10-21 22:05:49,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:49,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962241933] [2020-10-21 22:05:49,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:49,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:49,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962241933] [2020-10-21 22:05:49,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:49,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:05:49,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206256838] [2020-10-21 22:05:49,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 22:05:49,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:49,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 22:05:49,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:05:49,829 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-10-21 22:05:49,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:49,901 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-10-21 22:05:49,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 22:05:49,905 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-21 22:05:49,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:49,947 INFO L225 Difference]: With dead ends: 1450 [2020-10-21 22:05:49,948 INFO L226 Difference]: Without dead ends: 1194 [2020-10-21 22:05:49,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:05:49,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-10-21 22:05:50,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-10-21 22:05:50,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-10-21 22:05:50,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-10-21 22:05:50,100 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-10-21 22:05:50,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:50,104 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-10-21 22:05:50,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 22:05:50,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-10-21 22:05:50,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:05:50,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:50,117 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:50,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:05:50,118 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:50,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:50,118 INFO L82 PathProgramCache]: Analyzing trace with hash 2047662136, now seen corresponding path program 1 times [2020-10-21 22:05:50,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:50,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409555516] [2020-10-21 22:05:50,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:50,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:50,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409555516] [2020-10-21 22:05:50,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:50,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:05:50,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849200627] [2020-10-21 22:05:50,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:05:50,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:50,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:05:50,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:05:50,313 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-10-21 22:05:50,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:50,355 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-10-21 22:05:50,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:05:50,355 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-21 22:05:50,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:50,364 INFO L225 Difference]: With dead ends: 1322 [2020-10-21 22:05:50,365 INFO L226 Difference]: Without dead ends: 1066 [2020-10-21 22:05:50,366 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 [2020-10-21 22:05:50,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-21 22:05:50,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-21 22:05:50,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-21 22:05:50,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-10-21 22:05:50,454 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-10-21 22:05:50,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:50,455 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-10-21 22:05:50,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:05:50,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-10-21 22:05:50,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 22:05:50,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:50,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:50,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:05:50,457 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:50,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:50,458 INFO L82 PathProgramCache]: Analyzing trace with hash -947021519, now seen corresponding path program 1 times [2020-10-21 22:05:50,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:50,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841146444] [2020-10-21 22:05:50,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:50,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:50,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:50,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841146444] [2020-10-21 22:05:50,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:50,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:05:50,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655325824] [2020-10-21 22:05:50,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:05:50,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:50,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:05:50,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:05:50,521 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-10-21 22:05:50,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:50,551 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-10-21 22:05:50,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:05:50,552 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 22:05:50,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:50,567 INFO L225 Difference]: With dead ends: 1162 [2020-10-21 22:05:50,567 INFO L226 Difference]: Without dead ends: 970 [2020-10-21 22:05:50,568 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 [2020-10-21 22:05:50,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-21 22:05:50,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-10-21 22:05:50,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-10-21 22:05:50,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-10-21 22:05:50,611 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-10-21 22:05:50,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:50,611 INFO L481 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-10-21 22:05:50,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:05:50,611 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-10-21 22:05:50,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:05:50,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:50,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:50,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:05:50,614 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:50,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:50,615 INFO L82 PathProgramCache]: Analyzing trace with hash 639493830, now seen corresponding path program 1 times [2020-10-21 22:05:50,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:50,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607177944] [2020-10-21 22:05:50,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:50,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:50,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607177944] [2020-10-21 22:05:50,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:50,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:05:50,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353383781] [2020-10-21 22:05:50,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:05:50,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:50,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:05:50,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:05:50,683 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 5 states. [2020-10-21 22:05:50,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:50,736 INFO L93 Difference]: Finished difference Result 1162 states and 3980 transitions. [2020-10-21 22:05:50,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:05:50,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-21 22:05:50,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:50,741 INFO L225 Difference]: With dead ends: 1162 [2020-10-21 22:05:50,741 INFO L226 Difference]: Without dead ends: 508 [2020-10-21 22:05:50,742 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:05:50,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-21 22:05:50,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2020-10-21 22:05:50,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-10-21 22:05:50,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 1638 transitions. [2020-10-21 22:05:50,758 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 1638 transitions. Word has length 13 [2020-10-21 22:05:50,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:50,759 INFO L481 AbstractCegarLoop]: Abstraction has 508 states and 1638 transitions. [2020-10-21 22:05:50,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:05:50,759 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 1638 transitions. [2020-10-21 22:05:50,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:05:50,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:50,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:50,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:05:50,761 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:50,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:50,761 INFO L82 PathProgramCache]: Analyzing trace with hash 380154805, now seen corresponding path program 1 times [2020-10-21 22:05:50,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:50,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619418353] [2020-10-21 22:05:50,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:50,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:50,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619418353] [2020-10-21 22:05:50,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:50,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:05:50,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27486370] [2020-10-21 22:05:50,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:05:50,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:50,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:05:50,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:05:50,824 INFO L87 Difference]: Start difference. First operand 508 states and 1638 transitions. Second operand 4 states. [2020-10-21 22:05:50,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:50,854 INFO L93 Difference]: Finished difference Result 544 states and 1704 transitions. [2020-10-21 22:05:50,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:05:50,856 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-21 22:05:50,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:50,860 INFO L225 Difference]: With dead ends: 544 [2020-10-21 22:05:50,861 INFO L226 Difference]: Without dead ends: 472 [2020-10-21 22:05:50,861 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 [2020-10-21 22:05:50,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-10-21 22:05:50,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2020-10-21 22:05:50,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2020-10-21 22:05:50,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 1500 transitions. [2020-10-21 22:05:50,884 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 1500 transitions. Word has length 15 [2020-10-21 22:05:50,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:50,885 INFO L481 AbstractCegarLoop]: Abstraction has 472 states and 1500 transitions. [2020-10-21 22:05:50,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:05:50,885 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 1500 transitions. [2020-10-21 22:05:50,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 22:05:50,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:50,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:50,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:05:50,888 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:50,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:50,889 INFO L82 PathProgramCache]: Analyzing trace with hash -2067323682, now seen corresponding path program 1 times [2020-10-21 22:05:50,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:50,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585531663] [2020-10-21 22:05:50,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:50,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:50,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585531663] [2020-10-21 22:05:50,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:50,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:05:50,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135092100] [2020-10-21 22:05:50,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:05:50,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:50,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:05:50,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:05:50,974 INFO L87 Difference]: Start difference. First operand 472 states and 1500 transitions. Second operand 5 states. [2020-10-21 22:05:51,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:51,019 INFO L93 Difference]: Finished difference Result 586 states and 1831 transitions. [2020-10-21 22:05:51,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:05:51,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-21 22:05:51,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:51,023 INFO L225 Difference]: With dead ends: 586 [2020-10-21 22:05:51,023 INFO L226 Difference]: Without dead ends: 262 [2020-10-21 22:05:51,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:05:51,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-21 22:05:51,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-21 22:05:51,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-21 22:05:51,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 768 transitions. [2020-10-21 22:05:51,031 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 768 transitions. Word has length 16 [2020-10-21 22:05:51,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:51,032 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 768 transitions. [2020-10-21 22:05:51,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:05:51,033 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 768 transitions. [2020-10-21 22:05:51,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 22:05:51,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:51,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:51,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:05:51,034 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:51,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:51,035 INFO L82 PathProgramCache]: Analyzing trace with hash 253681578, now seen corresponding path program 1 times [2020-10-21 22:05:51,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:51,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615721141] [2020-10-21 22:05:51,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:51,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:51,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615721141] [2020-10-21 22:05:51,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:51,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:05:51,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917954783] [2020-10-21 22:05:51,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:05:51,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:51,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:05:51,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:05:51,100 INFO L87 Difference]: Start difference. First operand 262 states and 768 transitions. Second operand 5 states. [2020-10-21 22:05:51,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:51,137 INFO L93 Difference]: Finished difference Result 358 states and 1024 transitions. [2020-10-21 22:05:51,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:05:51,138 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-21 22:05:51,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:51,139 INFO L225 Difference]: With dead ends: 358 [2020-10-21 22:05:51,139 INFO L226 Difference]: Without dead ends: 154 [2020-10-21 22:05:51,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:05:51,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-21 22:05:51,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-21 22:05:51,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-21 22:05:51,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 410 transitions. [2020-10-21 22:05:51,145 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 410 transitions. Word has length 17 [2020-10-21 22:05:51,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:51,145 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 410 transitions. [2020-10-21 22:05:51,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:05:51,145 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 410 transitions. [2020-10-21 22:05:51,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 22:05:51,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:51,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:51,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 22:05:51,147 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:51,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:51,147 INFO L82 PathProgramCache]: Analyzing trace with hash -2117772472, now seen corresponding path program 1 times [2020-10-21 22:05:51,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:51,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753016320] [2020-10-21 22:05:51,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:51,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:51,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753016320] [2020-10-21 22:05:51,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:51,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:05:51,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914778398] [2020-10-21 22:05:51,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:05:51,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:51,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:05:51,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:05:51,201 INFO L87 Difference]: Start difference. First operand 154 states and 410 transitions. Second operand 5 states. [2020-10-21 22:05:51,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:51,231 INFO L93 Difference]: Finished difference Result 130 states and 334 transitions. [2020-10-21 22:05:51,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:05:51,232 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-21 22:05:51,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:51,232 INFO L225 Difference]: With dead ends: 130 [2020-10-21 22:05:51,232 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:05:51,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:05:51,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:05:51,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:05:51,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:05:51,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:05:51,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-21 22:05:51,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:51,234 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:05:51,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:05:51,234 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:05:51,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:05:51,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 22:05:51,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:05:51 BasicIcfg [2020-10-21 22:05:51,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:05:51,240 INFO L168 Benchmark]: Toolchain (without parser) took 5489.39 ms. Allocated memory was 140.0 MB in the beginning and 287.3 MB in the end (delta: 147.3 MB). Free memory was 101.4 MB in the beginning and 114.6 MB in the end (delta: -13.2 MB). Peak memory consumption was 134.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:51,241 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 22:05:51,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.53 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.3 MB in the beginning and 158.2 MB in the end (delta: -57.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:51,243 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.33 ms. Allocated memory is still 202.9 MB. Free memory was 158.2 MB in the beginning and 156.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:51,243 INFO L168 Benchmark]: Boogie Preprocessor took 26.38 ms. Allocated memory is still 202.9 MB. Free memory was 156.2 MB in the beginning and 154.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:51,244 INFO L168 Benchmark]: RCFGBuilder took 449.03 ms. Allocated memory is still 202.9 MB. Free memory was 154.2 MB in the beginning and 127.8 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:51,245 INFO L168 Benchmark]: TraceAbstraction took 4246.04 ms. Allocated memory was 202.9 MB in the beginning and 287.3 MB in the end (delta: 84.4 MB). Free memory was 127.8 MB in the beginning and 114.6 MB in the end (delta: 13.2 MB). Peak memory consumption was 97.6 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:51,249 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.53 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.3 MB in the beginning and 158.2 MB in the end (delta: -57.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.33 ms. Allocated memory is still 202.9 MB. Free memory was 158.2 MB in the beginning and 156.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.38 ms. Allocated memory is still 202.9 MB. Free memory was 156.2 MB in the beginning and 154.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 449.03 ms. Allocated memory is still 202.9 MB. Free memory was 154.2 MB in the beginning and 127.8 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4246.04 ms. Allocated memory was 202.9 MB in the beginning and 287.3 MB in the end (delta: 84.4 MB). Free memory was 127.8 MB in the beginning and 114.6 MB in the end (delta: 13.2 MB). Peak memory consumption was 97.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1644 VarBasedMoverChecksPositive, 61 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 49 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 172 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 105 PlacesBefore, 41 PlacesAfterwards, 95 TransitionsBefore, 29 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 4418 MoverChecksTotal - PositiveResult [Line: 17]: 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, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 232 SDtfs, 257 SDslu, 326 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 4169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...