/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:19:43,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:19:43,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:19:43,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:19:43,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:19:43,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:19:43,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:19:43,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:19:43,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:19:43,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:19:43,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:19:43,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:19:43,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:19:43,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:19:43,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:19:43,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:19:43,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:19:43,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:19:43,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:19:43,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:19:43,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:19:43,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:19:43,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:19:43,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:19:43,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:19:43,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:19:43,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:19:43,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:19:43,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:19:43,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:19:43,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:19:43,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:19:43,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:19:43,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:19:43,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:19:43,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:19:43,655 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf [2020-11-12 12:19:43,684 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:19:43,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:19:43,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:19:43,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:19:43,687 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:19:43,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:19:43,688 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:19:43,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:19:43,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:19:43,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:19:43,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:19:43,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:19:43,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:19:43,689 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:19:43,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:19:43,690 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:19:43,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:19:43,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:19:43,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:19:43,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:19:43,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:19:43,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:19:43,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:19:43,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:19:43,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:19:43,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:19:43,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:19:43,693 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:19:43,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:19:43,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:19:43,694 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:19:44,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:19:44,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:19:44,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:19:44,100 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:19:44,100 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:19:44,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2020-11-12 12:19:44,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d1c9d219/b5f3cfe07e354011b853b17888b5e7a3/FLAGd2f54cc73 [2020-11-12 12:19:44,916 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:19:44,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2020-11-12 12:19:44,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d1c9d219/b5f3cfe07e354011b853b17888b5e7a3/FLAGd2f54cc73 [2020-11-12 12:19:45,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d1c9d219/b5f3cfe07e354011b853b17888b5e7a3 [2020-11-12 12:19:45,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:19:45,190 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:19:45,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:19:45,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:19:45,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:19:45,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:19:45" (1/1) ... [2020-11-12 12:19:45,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c073772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:19:45, skipping insertion in model container [2020-11-12 12:19:45,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:19:45" (1/1) ... [2020-11-12 12:19:45,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:19:45,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:19:45,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:19:45,774 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:19:45,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:19:45,965 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:19:45,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:19:45 WrapperNode [2020-11-12 12:19:45,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:19:45,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:19:45,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:19:45,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:19:45,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:19:45" (1/1) ... [2020-11-12 12:19:45,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:19:45" (1/1) ... [2020-11-12 12:19:46,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:19:46,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:19:46,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:19:46,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:19:46,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:19:45" (1/1) ... [2020-11-12 12:19:46,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:19:45" (1/1) ... [2020-11-12 12:19:46,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:19:45" (1/1) ... [2020-11-12 12:19:46,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:19:45" (1/1) ... [2020-11-12 12:19:46,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:19:45" (1/1) ... [2020-11-12 12:19:46,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:19:45" (1/1) ... [2020-11-12 12:19:46,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:19:45" (1/1) ... [2020-11-12 12:19:46,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:19:46,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:19:46,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:19:46,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:19:46,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:19:45" (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 [2020-11-12 12:19:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:19:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:19:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:19:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:19:46,158 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:19:46,158 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:19:46,158 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:19:46,158 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:19:46,158 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:19:46,158 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:19:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-12 12:19:46,159 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-12 12:19:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:19:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:19:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:19:46,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:19:46,161 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:19:46,552 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:19:46,552 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:19:46,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:19:46 BoogieIcfgContainer [2020-11-12 12:19:46,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:19:46,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:19:46,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:19:46,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:19:46,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:19:45" (1/3) ... [2020-11-12 12:19:46,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c63aed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:19:46, skipping insertion in model container [2020-11-12 12:19:46,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:19:45" (2/3) ... [2020-11-12 12:19:46,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c63aed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:19:46, skipping insertion in model container [2020-11-12 12:19:46,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:19:46" (3/3) ... [2020-11-12 12:19:46,564 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2020-11-12 12:19:46,580 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:19:46,580 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:19:46,584 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:19:46,585 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:19:46,620 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,620 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,620 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,620 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,621 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,621 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,622 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,622 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,622 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,622 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,623 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,623 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,623 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,623 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,624 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,624 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,624 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,624 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,626 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,626 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,626 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,626 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,627 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,627 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,627 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,627 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,628 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,628 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,628 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,628 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,629 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,629 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,630 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,630 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,630 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,630 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,630 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,631 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,631 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,631 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,632 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,632 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,634 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,635 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,635 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,635 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,643 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,643 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,644 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,644 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,647 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,648 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,650 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,651 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:19:46,653 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:19:46,667 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-12 12:19:46,693 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:19:46,693 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:19:46,693 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:19:46,693 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:19:46,693 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:19:46,694 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:19:46,694 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:19:46,694 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:19:46,708 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 89 transitions, 198 flow [2020-11-12 12:19:56,892 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:01,709 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 4813ms [2020-11-12 12:20:01,818 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:02,199 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 219588 states, 202092 states have (on average 1.2638798171129981) internal successors, (255420), 219587 states have internal predecessors, (255420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:02,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 219588 states, 202092 states have (on average 1.2638798171129981) internal successors, (255420), 219587 states have internal predecessors, (255420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:02,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 12:20:02,465 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:02,466 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:02,467 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:02,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:02,476 INFO L82 PathProgramCache]: Analyzing trace with hash -864945227, now seen corresponding path program 1 times [2020-11-12 12:20:02,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:02,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100638516] [2020-11-12 12:20:02,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:03,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:03,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100638516] [2020-11-12 12:20:03,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:03,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:20:03,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953840685] [2020-11-12 12:20:03,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:20:03,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:03,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:20:03,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:20:03,299 INFO L87 Difference]: Start difference. First operand has 219588 states, 202092 states have (on average 1.2638798171129981) internal successors, (255420), 219587 states have internal predecessors, (255420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:04,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:04,494 INFO L93 Difference]: Finished difference Result 93406 states and 113846 transitions. [2020-11-12 12:20:04,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:20:04,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-11-12 12:20:04,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:04,729 INFO L225 Difference]: With dead ends: 93406 [2020-11-12 12:20:04,729 INFO L226 Difference]: Without dead ends: 29206 [2020-11-12 12:20:04,732 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:05,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29206 states. [2020-11-12 12:20:06,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29206 to 29206. [2020-11-12 12:20:06,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29206 states, 27694 states have (on average 1.4165523218025564) internal successors, (39230), 29205 states have internal predecessors, (39230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:06,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29206 states to 29206 states and 39230 transitions. [2020-11-12 12:20:06,902 INFO L78 Accepts]: Start accepts. Automaton has 29206 states and 39230 transitions. Word has length 45 [2020-11-12 12:20:06,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:06,903 INFO L481 AbstractCegarLoop]: Abstraction has 29206 states and 39230 transitions. [2020-11-12 12:20:06,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:06,904 INFO L276 IsEmpty]: Start isEmpty. Operand 29206 states and 39230 transitions. [2020-11-12 12:20:06,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 12:20:06,940 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:06,941 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:06,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:20:06,941 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:06,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:06,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1929238550, now seen corresponding path program 1 times [2020-11-12 12:20:06,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:06,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321781074] [2020-11-12 12:20:06,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:07,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:07,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321781074] [2020-11-12 12:20:07,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:07,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:20:07,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532907244] [2020-11-12 12:20:07,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:20:07,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:07,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:20:07,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:20:07,514 INFO L87 Difference]: Start difference. First operand 29206 states and 39230 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:07,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:07,916 INFO L93 Difference]: Finished difference Result 31688 states and 42504 transitions. [2020-11-12 12:20:07,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:20:07,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-12 12:20:07,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:07,997 INFO L225 Difference]: With dead ends: 31688 [2020-11-12 12:20:07,997 INFO L226 Difference]: Without dead ends: 24713 [2020-11-12 12:20:07,999 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:08,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24713 states. [2020-11-12 12:20:08,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24713 to 24713. [2020-11-12 12:20:08,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24713 states, 23417 states have (on average 1.3842507579963275) internal successors, (32415), 24712 states have internal predecessors, (32415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:08,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24713 states to 24713 states and 32415 transitions. [2020-11-12 12:20:08,745 INFO L78 Accepts]: Start accepts. Automaton has 24713 states and 32415 transitions. Word has length 47 [2020-11-12 12:20:08,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:08,746 INFO L481 AbstractCegarLoop]: Abstraction has 24713 states and 32415 transitions. [2020-11-12 12:20:08,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:08,746 INFO L276 IsEmpty]: Start isEmpty. Operand 24713 states and 32415 transitions. [2020-11-12 12:20:08,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 12:20:08,781 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:08,781 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:08,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:20:08,782 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:08,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:08,783 INFO L82 PathProgramCache]: Analyzing trace with hash 882612085, now seen corresponding path program 1 times [2020-11-12 12:20:08,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:08,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085420909] [2020-11-12 12:20:08,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:09,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085420909] [2020-11-12 12:20:09,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:09,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:20:09,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670832487] [2020-11-12 12:20:09,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:20:09,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:09,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:20:09,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:20:09,041 INFO L87 Difference]: Start difference. First operand 24713 states and 32415 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:09,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:09,312 INFO L93 Difference]: Finished difference Result 25145 states and 33055 transitions. [2020-11-12 12:20:09,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:20:09,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2020-11-12 12:20:09,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:09,363 INFO L225 Difference]: With dead ends: 25145 [2020-11-12 12:20:09,363 INFO L226 Difference]: Without dead ends: 19628 [2020-11-12 12:20:09,364 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:09,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19628 states. [2020-11-12 12:20:10,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19628 to 19628. [2020-11-12 12:20:10,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19628 states, 18620 states have (on average 1.3975832438238454) internal successors, (26023), 19627 states have internal predecessors, (26023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:10,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19628 states to 19628 states and 26023 transitions. [2020-11-12 12:20:10,093 INFO L78 Accepts]: Start accepts. Automaton has 19628 states and 26023 transitions. Word has length 49 [2020-11-12 12:20:10,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:10,094 INFO L481 AbstractCegarLoop]: Abstraction has 19628 states and 26023 transitions. [2020-11-12 12:20:10,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:10,094 INFO L276 IsEmpty]: Start isEmpty. Operand 19628 states and 26023 transitions. [2020-11-12 12:20:10,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-12 12:20:10,122 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:10,122 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:10,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:20:10,123 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:10,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:10,124 INFO L82 PathProgramCache]: Analyzing trace with hash -2020105092, now seen corresponding path program 1 times [2020-11-12 12:20:10,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:10,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425927137] [2020-11-12 12:20:10,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:10,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:10,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425927137] [2020-11-12 12:20:10,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:10,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:20:10,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45851177] [2020-11-12 12:20:10,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:20:10,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:10,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:20:10,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:20:10,245 INFO L87 Difference]: Start difference. First operand 19628 states and 26023 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:10,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:10,451 INFO L93 Difference]: Finished difference Result 20444 states and 27367 transitions. [2020-11-12 12:20:10,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:20:10,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2020-11-12 12:20:10,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:10,489 INFO L225 Difference]: With dead ends: 20444 [2020-11-12 12:20:10,489 INFO L226 Difference]: Without dead ends: 15568 [2020-11-12 12:20:10,490 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:10,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15568 states. [2020-11-12 12:20:10,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15568 to 15568. [2020-11-12 12:20:10,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15568 states, 14784 states have (on average 1.4032738095238095) internal successors, (20746), 15567 states have internal predecessors, (20746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:10,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15568 states to 15568 states and 20746 transitions. [2020-11-12 12:20:10,853 INFO L78 Accepts]: Start accepts. Automaton has 15568 states and 20746 transitions. Word has length 50 [2020-11-12 12:20:10,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:10,854 INFO L481 AbstractCegarLoop]: Abstraction has 15568 states and 20746 transitions. [2020-11-12 12:20:10,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:10,856 INFO L276 IsEmpty]: Start isEmpty. Operand 15568 states and 20746 transitions. [2020-11-12 12:20:10,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 12:20:10,881 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:10,881 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:10,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:20:10,881 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:10,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:10,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1761780346, now seen corresponding path program 1 times [2020-11-12 12:20:10,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:10,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605593193] [2020-11-12 12:20:10,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:11,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:11,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605593193] [2020-11-12 12:20:11,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:11,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:20:11,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286549634] [2020-11-12 12:20:11,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:20:11,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:11,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:20:11,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:20:11,040 INFO L87 Difference]: Start difference. First operand 15568 states and 20746 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:11,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:11,332 INFO L93 Difference]: Finished difference Result 24993 states and 32223 transitions. [2020-11-12 12:20:11,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:20:11,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-11-12 12:20:11,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:11,359 INFO L225 Difference]: With dead ends: 24993 [2020-11-12 12:20:11,359 INFO L226 Difference]: Without dead ends: 13858 [2020-11-12 12:20:11,360 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:11,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13858 states. [2020-11-12 12:20:11,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13858 to 11009. [2020-11-12 12:20:11,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11009 states, 10449 states have (on average 1.3756340319647813) internal successors, (14374), 11008 states have internal predecessors, (14374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:11,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11009 states to 11009 states and 14374 transitions. [2020-11-12 12:20:11,622 INFO L78 Accepts]: Start accepts. Automaton has 11009 states and 14374 transitions. Word has length 51 [2020-11-12 12:20:11,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:11,623 INFO L481 AbstractCegarLoop]: Abstraction has 11009 states and 14374 transitions. [2020-11-12 12:20:11,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:11,623 INFO L276 IsEmpty]: Start isEmpty. Operand 11009 states and 14374 transitions. [2020-11-12 12:20:11,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-12 12:20:11,639 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:11,639 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:11,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:20:11,640 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:11,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:11,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1589951361, now seen corresponding path program 1 times [2020-11-12 12:20:11,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:11,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726954110] [2020-11-12 12:20:11,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:11,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:11,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726954110] [2020-11-12 12:20:11,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:11,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:20:11,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985819698] [2020-11-12 12:20:11,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:20:11,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:11,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:20:11,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:20:11,736 INFO L87 Difference]: Start difference. First operand 11009 states and 14374 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:11,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:11,904 INFO L93 Difference]: Finished difference Result 16759 states and 20743 transitions. [2020-11-12 12:20:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:20:11,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2020-11-12 12:20:11,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:11,923 INFO L225 Difference]: With dead ends: 16759 [2020-11-12 12:20:11,923 INFO L226 Difference]: Without dead ends: 9757 [2020-11-12 12:20:11,924 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:11,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9757 states. [2020-11-12 12:20:12,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9757 to 8093. [2020-11-12 12:20:12,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8093 states, 7693 states have (on average 1.3487586117249448) internal successors, (10376), 8092 states have internal predecessors, (10376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:12,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8093 states to 8093 states and 10376 transitions. [2020-11-12 12:20:12,099 INFO L78 Accepts]: Start accepts. Automaton has 8093 states and 10376 transitions. Word has length 52 [2020-11-12 12:20:12,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:12,099 INFO L481 AbstractCegarLoop]: Abstraction has 8093 states and 10376 transitions. [2020-11-12 12:20:12,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:12,100 INFO L276 IsEmpty]: Start isEmpty. Operand 8093 states and 10376 transitions. [2020-11-12 12:20:12,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 12:20:12,112 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:12,112 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:12,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:20:12,113 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:12,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:12,113 INFO L82 PathProgramCache]: Analyzing trace with hash 335025175, now seen corresponding path program 1 times [2020-11-12 12:20:12,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:12,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954366576] [2020-11-12 12:20:12,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:12,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:12,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954366576] [2020-11-12 12:20:12,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:12,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:20:12,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753302332] [2020-11-12 12:20:12,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:20:12,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:12,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:20:12,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:20:12,228 INFO L87 Difference]: Start difference. First operand 8093 states and 10376 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:12,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:12,380 INFO L93 Difference]: Finished difference Result 9200 states and 11397 transitions. [2020-11-12 12:20:12,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:20:12,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2020-11-12 12:20:12,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:12,394 INFO L225 Difference]: With dead ends: 9200 [2020-11-12 12:20:12,395 INFO L226 Difference]: Without dead ends: 7992 [2020-11-12 12:20:12,395 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:12,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2020-11-12 12:20:12,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7992. [2020-11-12 12:20:12,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7992 states, 7596 states have (on average 1.341100579252238) internal successors, (10187), 7991 states have internal predecessors, (10187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:12,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7992 states to 7992 states and 10187 transitions. [2020-11-12 12:20:12,541 INFO L78 Accepts]: Start accepts. Automaton has 7992 states and 10187 transitions. Word has length 53 [2020-11-12 12:20:12,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:12,542 INFO L481 AbstractCegarLoop]: Abstraction has 7992 states and 10187 transitions. [2020-11-12 12:20:12,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:12,542 INFO L276 IsEmpty]: Start isEmpty. Operand 7992 states and 10187 transitions. [2020-11-12 12:20:12,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-12 12:20:12,553 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:12,553 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:12,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 12:20:12,553 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:12,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:12,554 INFO L82 PathProgramCache]: Analyzing trace with hash 868960166, now seen corresponding path program 1 times [2020-11-12 12:20:12,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:12,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804226891] [2020-11-12 12:20:12,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:12,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:12,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804226891] [2020-11-12 12:20:12,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:12,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:20:12,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551019291] [2020-11-12 12:20:12,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:20:12,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:12,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:20:12,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:20:12,724 INFO L87 Difference]: Start difference. First operand 7992 states and 10187 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:12,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:12,895 INFO L93 Difference]: Finished difference Result 8786 states and 10923 transitions. [2020-11-12 12:20:12,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:20:12,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-11-12 12:20:12,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:12,907 INFO L225 Difference]: With dead ends: 8786 [2020-11-12 12:20:12,907 INFO L226 Difference]: Without dead ends: 7168 [2020-11-12 12:20:12,909 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 12:20:12,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7168 states. [2020-11-12 12:20:13,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7168 to 7168. [2020-11-12 12:20:13,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7168 states, 6808 states have (on average 1.2999412455934196) internal successors, (8850), 7167 states have internal predecessors, (8850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:13,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7168 states to 7168 states and 8850 transitions. [2020-11-12 12:20:13,044 INFO L78 Accepts]: Start accepts. Automaton has 7168 states and 8850 transitions. Word has length 54 [2020-11-12 12:20:13,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:13,045 INFO L481 AbstractCegarLoop]: Abstraction has 7168 states and 8850 transitions. [2020-11-12 12:20:13,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:13,046 INFO L276 IsEmpty]: Start isEmpty. Operand 7168 states and 8850 transitions. [2020-11-12 12:20:13,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 12:20:13,055 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:13,055 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:13,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 12:20:13,055 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:13,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:13,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1623299884, now seen corresponding path program 1 times [2020-11-12 12:20:13,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:13,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469326345] [2020-11-12 12:20:13,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:13,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:13,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469326345] [2020-11-12 12:20:13,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:13,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 12:20:13,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129102536] [2020-11-12 12:20:13,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 12:20:13,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:13,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 12:20:13,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 12:20:13,225 INFO L87 Difference]: Start difference. First operand 7168 states and 8850 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:13,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:13,411 INFO L93 Difference]: Finished difference Result 6676 states and 8005 transitions. [2020-11-12 12:20:13,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 12:20:13,412 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-12 12:20:13,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:13,421 INFO L225 Difference]: With dead ends: 6676 [2020-11-12 12:20:13,422 INFO L226 Difference]: Without dead ends: 4726 [2020-11-12 12:20:13,422 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-12 12:20:13,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2020-11-12 12:20:13,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 4726. [2020-11-12 12:20:13,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4726 states, 4483 states have (on average 1.209457952264109) internal successors, (5422), 4725 states have internal predecessors, (5422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4726 states to 4726 states and 5422 transitions. [2020-11-12 12:20:13,509 INFO L78 Accepts]: Start accepts. Automaton has 4726 states and 5422 transitions. Word has length 55 [2020-11-12 12:20:13,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:13,509 INFO L481 AbstractCegarLoop]: Abstraction has 4726 states and 5422 transitions. [2020-11-12 12:20:13,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:13,510 INFO L276 IsEmpty]: Start isEmpty. Operand 4726 states and 5422 transitions. [2020-11-12 12:20:13,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-12 12:20:13,515 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:13,516 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:13,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-12 12:20:13,516 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:13,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:13,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1130501845, now seen corresponding path program 1 times [2020-11-12 12:20:13,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:13,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577674423] [2020-11-12 12:20:13,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:13,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:13,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577674423] [2020-11-12 12:20:13,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:13,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-12 12:20:13,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029272453] [2020-11-12 12:20:13,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-12 12:20:13,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:13,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-12 12:20:13,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-12 12:20:13,641 INFO L87 Difference]: Start difference. First operand 4726 states and 5422 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:13,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:13,839 INFO L93 Difference]: Finished difference Result 3333 states and 3732 transitions. [2020-11-12 12:20:13,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-12 12:20:13,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2020-11-12 12:20:13,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:13,843 INFO L225 Difference]: With dead ends: 3333 [2020-11-12 12:20:13,844 INFO L226 Difference]: Without dead ends: 1563 [2020-11-12 12:20:13,844 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2020-11-12 12:20:13,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2020-11-12 12:20:13,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1563. [2020-11-12 12:20:13,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1482 states have (on average 1.0863697705802968) internal successors, (1610), 1562 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:13,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 1610 transitions. [2020-11-12 12:20:13,868 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 1610 transitions. Word has length 57 [2020-11-12 12:20:13,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:13,868 INFO L481 AbstractCegarLoop]: Abstraction has 1563 states and 1610 transitions. [2020-11-12 12:20:13,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:13,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 1610 transitions. [2020-11-12 12:20:13,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 12:20:13,871 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:13,871 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:13,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-12 12:20:13,871 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:13,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:13,872 INFO L82 PathProgramCache]: Analyzing trace with hash 846060426, now seen corresponding path program 1 times [2020-11-12 12:20:13,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:13,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230109677] [2020-11-12 12:20:13,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:13,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:13,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230109677] [2020-11-12 12:20:13,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:13,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:20:13,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051153812] [2020-11-12 12:20:13,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:20:13,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:13,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:20:13,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:20:13,971 INFO L87 Difference]: Start difference. First operand 1563 states and 1610 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:14,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:14,080 INFO L93 Difference]: Finished difference Result 2584 states and 2628 transitions. [2020-11-12 12:20:14,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:20:14,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2020-11-12 12:20:14,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:14,085 INFO L225 Difference]: With dead ends: 2584 [2020-11-12 12:20:14,085 INFO L226 Difference]: Without dead ends: 1469 [2020-11-12 12:20:14,086 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:14,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2020-11-12 12:20:14,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2020-11-12 12:20:14,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1388 states have (on average 1.064121037463977) internal successors, (1477), 1468 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:14,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 1477 transitions. [2020-11-12 12:20:14,119 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 1477 transitions. Word has length 59 [2020-11-12 12:20:14,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:14,119 INFO L481 AbstractCegarLoop]: Abstraction has 1469 states and 1477 transitions. [2020-11-12 12:20:14,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:14,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 1477 transitions. [2020-11-12 12:20:14,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 12:20:14,123 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:14,123 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:14,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-12 12:20:14,124 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:14,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:14,124 INFO L82 PathProgramCache]: Analyzing trace with hash 917265090, now seen corresponding path program 2 times [2020-11-12 12:20:14,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:14,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293277489] [2020-11-12 12:20:14,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:14,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:14,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293277489] [2020-11-12 12:20:14,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:14,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:20:14,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025710879] [2020-11-12 12:20:14,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:20:14,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:14,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:20:14,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:20:14,239 INFO L87 Difference]: Start difference. First operand 1469 states and 1477 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:14,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:14,313 INFO L93 Difference]: Finished difference Result 1145 states and 1153 transitions. [2020-11-12 12:20:14,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:20:14,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2020-11-12 12:20:14,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:14,314 INFO L225 Difference]: With dead ends: 1145 [2020-11-12 12:20:14,314 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:20:14,314 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:14,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:20:14,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:20:14,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:14,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:20:14,315 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2020-11-12 12:20:14,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:14,315 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:20:14,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:14,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:20:14,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:20:14,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-12 12:20:14,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:20:14 BasicIcfg [2020-11-12 12:20:14,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:20:14,324 INFO L168 Benchmark]: Toolchain (without parser) took 29144.66 ms. Allocated memory was 304.1 MB in the beginning and 8.0 GB in the end (delta: 7.7 GB). Free memory was 277.9 MB in the beginning and 7.0 GB in the end (delta: -6.7 GB). Peak memory consumption was 982.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:20:14,325 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 304.1 MB. Free memory is still 275.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:20:14,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.09 ms. Allocated memory is still 304.1 MB. Free memory was 277.4 MB in the beginning and 279.6 MB in the end (delta: -2.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:20:14,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.28 ms. Allocated memory is still 304.1 MB. Free memory was 279.6 MB in the beginning and 277.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:20:14,327 INFO L168 Benchmark]: Boogie Preprocessor took 34.41 ms. Allocated memory is still 304.1 MB. Free memory was 277.5 MB in the beginning and 276.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:20:14,328 INFO L168 Benchmark]: RCFGBuilder took 497.77 ms. Allocated memory is still 304.1 MB. Free memory was 276.5 MB in the beginning and 252.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-11-12 12:20:14,328 INFO L168 Benchmark]: TraceAbstraction took 27765.12 ms. Allocated memory was 304.1 MB in the beginning and 8.0 GB in the end (delta: 7.7 GB). Free memory was 251.3 MB in the beginning and 7.0 GB in the end (delta: -6.7 GB). Peak memory consumption was 954.2 MB. Max. memory is 16.0 GB. [2020-11-12 12:20:14,332 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 304.1 MB. Free memory is still 275.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 774.09 ms. Allocated memory is still 304.1 MB. Free memory was 277.4 MB in the beginning and 279.6 MB in the end (delta: -2.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.28 ms. Allocated memory is still 304.1 MB. Free memory was 279.6 MB in the beginning and 277.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.41 ms. Allocated memory is still 304.1 MB. Free memory was 277.5 MB in the beginning and 276.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 497.77 ms. Allocated memory is still 304.1 MB. Free memory was 276.5 MB in the beginning and 252.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 27765.12 ms. Allocated memory was 304.1 MB in the beginning and 8.0 GB in the end (delta: 7.7 GB). Free memory was 251.3 MB in the beginning and 7.0 GB in the end (delta: -6.7 GB). Peak memory consumption was 954.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 27.6s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.5s, HoareTripleCheckerStatistics: 929 SDtfs, 1260 SDslu, 3332 SDs, 0 SdLazy, 421 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=219588occurred 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: 4.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 4513 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 631 NumberOfCodeBlocks, 631 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 619 ConstructedInterpolants, 0 QuantifiedInterpolants, 87709 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...