/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:49:07,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:49:07,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:49:07,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:49:07,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:49:07,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:49:07,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:49:07,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:49:07,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:49:07,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:49:07,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:49:07,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:49:07,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:49:07,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:49:07,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:49:07,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:49:07,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:49:07,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:49:07,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:49:07,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:49:07,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:49:07,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:49:07,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:49:07,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:49:07,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 14:49:07,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:49:07,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:49:07,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:49:07,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:49:07,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:49:07,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:49:07,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:49:07,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:49:07,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:49:07,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:49:07,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:49:07,186 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.epf [2021-01-20 14:49:07,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:49:07,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:49:07,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:49:07,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:49:07,248 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:49:07,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:49:07,249 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:49:07,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:49:07,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:49:07,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:49:07,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:49:07,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:49:07,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:49:07,251 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:49:07,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:49:07,252 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:49:07,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:49:07,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:49:07,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:49:07,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:49:07,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:49:07,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:49:07,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:49:07,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:49:07,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:49:07,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:49:07,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:49:07,255 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:49:07,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:49:07,255 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:49:07,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:49:07,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:49:07,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:49:07,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:49:07,689 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:49:07,690 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:49:07,691 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2021-01-20 14:49:07,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3f490d22/9d852cc78b094ac88aeda9311067eaf7/FLAGd71a998dc [2021-01-20 14:49:08,582 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:49:08,582 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2021-01-20 14:49:08,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3f490d22/9d852cc78b094ac88aeda9311067eaf7/FLAGd71a998dc [2021-01-20 14:49:08,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3f490d22/9d852cc78b094ac88aeda9311067eaf7 [2021-01-20 14:49:08,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:49:08,816 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:49:08,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:49:08,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:49:08,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:49:08,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:49:08" (1/1) ... [2021-01-20 14:49:08,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2936ac87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:08, skipping insertion in model container [2021-01-20 14:49:08,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:49:08" (1/1) ... [2021-01-20 14:49:08,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:49:08,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:49:09,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:49:09,376 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:49:09,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:49:09,557 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:49:09,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:09 WrapperNode [2021-01-20 14:49:09,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:49:09,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:49:09,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:49:09,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:49:09,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:09" (1/1) ... [2021-01-20 14:49:09,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:09" (1/1) ... [2021-01-20 14:49:09,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:49:09,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:49:09,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:49:09,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:49:09,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:09" (1/1) ... [2021-01-20 14:49:09,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:09" (1/1) ... [2021-01-20 14:49:09,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:09" (1/1) ... [2021-01-20 14:49:09,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:09" (1/1) ... [2021-01-20 14:49:09,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:09" (1/1) ... [2021-01-20 14:49:09,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:09" (1/1) ... [2021-01-20 14:49:09,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:09" (1/1) ... [2021-01-20 14:49:09,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:49:09,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:49:09,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:49:09,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:49:09,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:09" (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 [2021-01-20 14:49:09,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:49:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:49:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:49:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:49:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:49:09,743 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:49:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:49:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:49:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:49:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:49:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:49:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:49:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:49:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:49:09,749 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 14:49:10,304 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:49:10,304 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:49:10,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:49:10 BoogieIcfgContainer [2021-01-20 14:49:10,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:49:10,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:49:10,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:49:10,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:49:10,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:49:08" (1/3) ... [2021-01-20 14:49:10,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48598c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:49:10, skipping insertion in model container [2021-01-20 14:49:10,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:09" (2/3) ... [2021-01-20 14:49:10,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48598c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:49:10, skipping insertion in model container [2021-01-20 14:49:10,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:49:10" (3/3) ... [2021-01-20 14:49:10,320 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc.i [2021-01-20 14:49:10,339 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:49:10,339 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:49:10,344 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:49:10,345 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:49:10,393 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,394 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,394 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,395 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,395 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,395 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,395 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,397 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,398 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,398 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,399 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,399 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,399 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,399 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,400 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,400 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,400 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,402 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,402 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,402 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,405 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,405 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,405 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,405 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,407 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,407 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,408 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,408 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,421 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,422 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,429 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,429 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,429 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,429 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,434 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,434 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,434 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,434 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:10,438 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:49:10,454 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 14:49:10,494 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:49:10,495 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:49:10,495 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:49:10,495 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:49:10,495 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:49:10,495 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:49:10,495 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:49:10,496 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:49:10,512 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2021-01-20 14:49:11,323 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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) [2021-01-20 14:49:11,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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) [2021-01-20 14:49:11,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 14:49:11,404 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:11,405 INFO L504 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] [2021-01-20 14:49:11,405 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:11,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:11,412 INFO L82 PathProgramCache]: Analyzing trace with hash 122866376, now seen corresponding path program 1 times [2021-01-20 14:49:11,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:11,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439663435] [2021-01-20 14:49:11,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:11,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:11,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439663435] [2021-01-20 14:49:11,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:11,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:49:11,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446140273] [2021-01-20 14:49:11,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:49:11,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:11,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:49:11,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:49:11,997 INFO L87 Difference]: Start difference. First operand has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-20 14:49:12,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:12,387 INFO L93 Difference]: Finished difference Result 10464 states and 36160 transitions. [2021-01-20 14:49:12,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:49:12,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2021-01-20 14:49:12,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:12,444 INFO L225 Difference]: With dead ends: 10464 [2021-01-20 14:49:12,445 INFO L226 Difference]: Without dead ends: 3954 [2021-01-20 14:49:12,446 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:49:12,447 INFO L78 Accepts]: Start accepts. Automaton has 3954 states. Word has length 42 [2021-01-20 14:49:12,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:12,449 INFO L481 AbstractCegarLoop]: Abstraction has 3954 states. [2021-01-20 14:49:12,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-20 14:49:12,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states. [2021-01-20 14:49:12,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 14:49:12,464 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:12,464 INFO L504 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] [2021-01-20 14:49:12,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:49:12,465 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:12,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:12,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1872350423, now seen corresponding path program 1 times [2021-01-20 14:49:12,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:12,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324942469] [2021-01-20 14:49:12,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:12,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:12,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324942469] [2021-01-20 14:49:12,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:12,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:49:12,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435345272] [2021-01-20 14:49:12,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:49:12,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:12,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:49:12,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:49:12,681 INFO L87 Difference]: Start difference. First operand 3954 states. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-01-20 14:49:13,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:13,109 INFO L93 Difference]: Finished difference Result 5214 states and 17478 transitions. [2021-01-20 14:49:13,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:49:13,110 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 44 [2021-01-20 14:49:13,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:13,135 INFO L225 Difference]: With dead ends: 5214 [2021-01-20 14:49:13,135 INFO L226 Difference]: Without dead ends: 2904 [2021-01-20 14:49:13,136 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:49:13,137 INFO L78 Accepts]: Start accepts. Automaton has 2904 states. Word has length 44 [2021-01-20 14:49:13,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:13,137 INFO L481 AbstractCegarLoop]: Abstraction has 2904 states. [2021-01-20 14:49:13,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-01-20 14:49:13,138 INFO L276 IsEmpty]: Start isEmpty. Operand 2904 states. [2021-01-20 14:49:13,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-20 14:49:13,148 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:13,148 INFO L504 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] [2021-01-20 14:49:13,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:49:13,149 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:13,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:13,150 INFO L82 PathProgramCache]: Analyzing trace with hash 799772232, now seen corresponding path program 1 times [2021-01-20 14:49:13,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:13,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596163821] [2021-01-20 14:49:13,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:13,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:13,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596163821] [2021-01-20 14:49:13,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:13,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:49:13,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260650162] [2021-01-20 14:49:13,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:49:13,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:13,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:49:13,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:49:13,294 INFO L87 Difference]: Start difference. First operand 2904 states. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-01-20 14:49:13,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:13,492 INFO L93 Difference]: Finished difference Result 3576 states and 11571 transitions. [2021-01-20 14:49:13,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:49:13,493 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-01-20 14:49:13,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:13,518 INFO L225 Difference]: With dead ends: 3576 [2021-01-20 14:49:13,518 INFO L226 Difference]: Without dead ends: 2680 [2021-01-20 14:49:13,519 INFO L769 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 [2021-01-20 14:49:13,519 INFO L78 Accepts]: Start accepts. Automaton has 2680 states. Word has length 46 [2021-01-20 14:49:13,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:13,520 INFO L481 AbstractCegarLoop]: Abstraction has 2680 states. [2021-01-20 14:49:13,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-01-20 14:49:13,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states. [2021-01-20 14:49:13,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 14:49:13,530 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:13,530 INFO L504 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] [2021-01-20 14:49:13,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:49:13,531 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:13,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:13,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1590494414, now seen corresponding path program 1 times [2021-01-20 14:49:13,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:13,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945028339] [2021-01-20 14:49:13,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:13,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:13,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945028339] [2021-01-20 14:49:13,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:13,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:49:13,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710115129] [2021-01-20 14:49:13,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:49:13,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:13,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:49:13,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:49:13,711 INFO L87 Difference]: Start difference. First operand 2680 states. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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) [2021-01-20 14:49:13,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:13,898 INFO L93 Difference]: Finished difference Result 2692 states and 8433 transitions. [2021-01-20 14:49:13,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:49:13,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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 [2021-01-20 14:49:13,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:13,916 INFO L225 Difference]: With dead ends: 2692 [2021-01-20 14:49:13,916 INFO L226 Difference]: Without dead ends: 1924 [2021-01-20 14:49:13,916 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-20 14:49:13,917 INFO L78 Accepts]: Start accepts. Automaton has 1924 states. Word has length 47 [2021-01-20 14:49:13,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:13,917 INFO L481 AbstractCegarLoop]: Abstraction has 1924 states. [2021-01-20 14:49:13,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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) [2021-01-20 14:49:13,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states. [2021-01-20 14:49:13,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 14:49:13,924 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:13,924 INFO L504 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] [2021-01-20 14:49:13,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:49:13,925 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:13,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:13,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1762956271, now seen corresponding path program 1 times [2021-01-20 14:49:13,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:13,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983220442] [2021-01-20 14:49:13,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:14,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:14,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983220442] [2021-01-20 14:49:14,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:14,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 14:49:14,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602249303] [2021-01-20 14:49:14,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 14:49:14,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:14,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 14:49:14,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 14:49:14,125 INFO L87 Difference]: Start difference. First operand 1924 states. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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) [2021-01-20 14:49:14,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:14,379 INFO L93 Difference]: Finished difference Result 1447 states and 4276 transitions. [2021-01-20 14:49:14,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 14:49:14,380 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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 [2021-01-20 14:49:14,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:14,388 INFO L225 Difference]: With dead ends: 1447 [2021-01-20 14:49:14,388 INFO L226 Difference]: Without dead ends: 1015 [2021-01-20 14:49:14,389 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-20 14:49:14,389 INFO L78 Accepts]: Start accepts. Automaton has 1015 states. Word has length 49 [2021-01-20 14:49:14,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:14,391 INFO L481 AbstractCegarLoop]: Abstraction has 1015 states. [2021-01-20 14:49:14,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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) [2021-01-20 14:49:14,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states. [2021-01-20 14:49:14,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 14:49:14,410 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:14,410 INFO L504 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] [2021-01-20 14:49:14,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:49:14,410 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:14,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:14,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1204892077, now seen corresponding path program 1 times [2021-01-20 14:49:14,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:14,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582505244] [2021-01-20 14:49:14,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:14,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582505244] [2021-01-20 14:49:14,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:14,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:49:14,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31039033] [2021-01-20 14:49:14,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:49:14,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:14,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:49:14,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:49:14,532 INFO L87 Difference]: Start difference. First operand 1015 states. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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) [2021-01-20 14:49:14,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:14,624 INFO L93 Difference]: Finished difference Result 1418 states and 4076 transitions. [2021-01-20 14:49:14,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:49:14,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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 [2021-01-20 14:49:14,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:14,630 INFO L225 Difference]: With dead ends: 1418 [2021-01-20 14:49:14,631 INFO L226 Difference]: Without dead ends: 715 [2021-01-20 14:49:14,631 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:49:14,631 INFO L78 Accepts]: Start accepts. Automaton has 715 states. Word has length 53 [2021-01-20 14:49:14,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:14,632 INFO L481 AbstractCegarLoop]: Abstraction has 715 states. [2021-01-20 14:49:14,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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) [2021-01-20 14:49:14,632 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states. [2021-01-20 14:49:14,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 14:49:14,635 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:14,635 INFO L504 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] [2021-01-20 14:49:14,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 14:49:14,635 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:14,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:14,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1710619263, now seen corresponding path program 2 times [2021-01-20 14:49:14,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:14,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452242450] [2021-01-20 14:49:14,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:14,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:14,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452242450] [2021-01-20 14:49:14,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:14,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:49:14,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939852953] [2021-01-20 14:49:14,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:49:14,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:14,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:49:14,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:49:14,739 INFO L87 Difference]: Start difference. First operand 715 states. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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) [2021-01-20 14:49:14,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:14,820 INFO L93 Difference]: Finished difference Result 607 states and 1685 transitions. [2021-01-20 14:49:14,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:49:14,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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 [2021-01-20 14:49:14,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:14,821 INFO L225 Difference]: With dead ends: 607 [2021-01-20 14:49:14,821 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:49:14,822 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:49:14,822 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 53 [2021-01-20 14:49:14,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:14,822 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:49:14,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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) [2021-01-20 14:49:14,823 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:49:14,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:49:14,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 14:49:14,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:49:14 BasicIcfg [2021-01-20 14:49:14,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:49:14,831 INFO L168 Benchmark]: Toolchain (without parser) took 6014.67 ms. Allocated memory was 302.0 MB in the beginning and 385.9 MB in the end (delta: 83.9 MB). Free memory was 275.6 MB in the beginning and 224.4 MB in the end (delta: 51.2 MB). Peak memory consumption was 136.4 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:14,832 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 271.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:49:14,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.95 ms. Allocated memory is still 302.0 MB. Free memory was 275.3 MB in the beginning and 276.8 MB in the end (delta: -1.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:14,833 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.38 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 274.7 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:49:14,834 INFO L168 Benchmark]: Boogie Preprocessor took 27.94 ms. Allocated memory is still 302.0 MB. Free memory was 274.7 MB in the beginning and 273.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:14,835 INFO L168 Benchmark]: RCFGBuilder took 653.17 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 248.5 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:14,836 INFO L168 Benchmark]: TraceAbstraction took 4517.08 ms. Allocated memory was 302.0 MB in the beginning and 385.9 MB in the end (delta: 83.9 MB). Free memory was 248.5 MB in the beginning and 224.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 107.0 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:14,840 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 271.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 736.95 ms. Allocated memory is still 302.0 MB. Free memory was 275.3 MB in the beginning and 276.8 MB in the end (delta: -1.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 66.38 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 274.7 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.94 ms. Allocated memory is still 302.0 MB. Free memory was 274.7 MB in the beginning and 273.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 653.17 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 248.5 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4517.08 ms. Allocated memory was 302.0 MB in the beginning and 385.9 MB in the end (delta: 83.9 MB). Free memory was 248.5 MB in the beginning and 224.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 107.0 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 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 635 SDtfs, 949 SDslu, 2154 SDs, 0 SdLazy, 273 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8448occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 334 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 327 ConstructedInterpolants, 0 QuantifiedInterpolants, 41295 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...