/usr/bin/java -Xmx8000000000 -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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:41:37,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:41:37,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:41:37,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:41:37,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:41:37,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:41:37,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:41:37,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:41:37,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:41:37,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:41:37,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:41:37,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:41:37,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:41:37,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:41:37,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:41:37,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:41:37,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:41:37,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:41:37,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:41:37,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:41:37,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:41:37,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:41:37,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:41:37,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:41:37,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 15:41:37,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:41:37,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:41:37,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:41:37,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:41:37,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:41:37,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:41:37,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:41:37,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:41:37,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:41:37,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:41:37,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:41:37,176 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-11-09 15:41:37,215 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:41:37,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:41:37,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:41:37,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:41:37,217 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:41:37,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:41:37,218 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:41:37,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:41:37,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:41:37,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:41:37,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:41:37,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:41:37,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:41:37,219 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:41:37,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:41:37,220 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:41:37,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:41:37,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:41:37,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:41:37,221 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:41:37,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:41:37,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:41:37,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:41:37,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:41:37,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:41:37,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:41:37,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:41:37,222 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:41:37,223 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:41:37,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:41:37,223 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:41:37,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:41:37,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:41:37,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:41:37,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:41:37,656 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:41:37,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i [2020-11-09 15:41:37,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d02933c9/67b14794fce44c138ed6aa31a7bf5565/FLAG9cff248a4 [2020-11-09 15:41:38,435 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:41:38,436 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i [2020-11-09 15:41:38,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d02933c9/67b14794fce44c138ed6aa31a7bf5565/FLAG9cff248a4 [2020-11-09 15:41:38,720 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d02933c9/67b14794fce44c138ed6aa31a7bf5565 [2020-11-09 15:41:38,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:41:38,733 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:41:38,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:41:38,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:41:38,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:41:38,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:41:38" (1/1) ... [2020-11-09 15:41:38,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50b4cfec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:41:38, skipping insertion in model container [2020-11-09 15:41:38,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:41:38" (1/1) ... [2020-11-09 15:41:38,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:41:38,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:41:39,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:41:39,278 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:41:39,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:41:39,486 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:41:39,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:41:39 WrapperNode [2020-11-09 15:41:39,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:41:39,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:41:39,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:41:39,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:41:39,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:41:39" (1/1) ... [2020-11-09 15:41:39,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:41:39" (1/1) ... [2020-11-09 15:41:39,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:41:39,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:41:39,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:41:39,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:41:39,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:41:39" (1/1) ... [2020-11-09 15:41:39,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:41:39" (1/1) ... [2020-11-09 15:41:39,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:41:39" (1/1) ... [2020-11-09 15:41:39,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:41:39" (1/1) ... [2020-11-09 15:41:39,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:41:39" (1/1) ... [2020-11-09 15:41:39,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:41:39" (1/1) ... [2020-11-09 15:41:39,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:41:39" (1/1) ... [2020-11-09 15:41:39,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:41:39,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:41:39,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:41:39,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:41:39,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:41:39" (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 [2020-11-09 15:41:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:41:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:41:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:41:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:41:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:41:39,679 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:41:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:41:39,680 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:41:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:41:39,681 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:41:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:41:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:41:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:41:39,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:41:39,684 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 15:41:40,192 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:41:40,192 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:41:40,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:41:40 BoogieIcfgContainer [2020-11-09 15:41:40,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:41:40,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:41:40,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:41:40,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:41:40,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:41:38" (1/3) ... [2020-11-09 15:41:40,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79520d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:41:40, skipping insertion in model container [2020-11-09 15:41:40,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:41:39" (2/3) ... [2020-11-09 15:41:40,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79520d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:41:40, skipping insertion in model container [2020-11-09 15:41:40,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:41:40" (3/3) ... [2020-11-09 15:41:40,205 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.opt.i [2020-11-09 15:41:40,222 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:41:40,222 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:41:40,228 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:41:40,229 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:41:40,266 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,266 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,267 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,267 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,267 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,267 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,267 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,268 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,268 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,268 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,269 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,269 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,270 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,270 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,270 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,270 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,270 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,270 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,271 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,271 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,271 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,271 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,272 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,272 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,272 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,272 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,273 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,273 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,273 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,273 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,278 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,278 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,286 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,286 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,287 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,287 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,290 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,290 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:41:40,294 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:41:40,309 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 15:41:40,336 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:41:40,337 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:41:40,337 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:41:40,337 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:41:40,337 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:41:40,337 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:41:40,337 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:41:40,337 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:41:40,352 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:41:40,353 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 15:41:40,357 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 15:41:40,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-09 15:41:40,409 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-09 15:41:40,409 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:41:40,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 15:41:40,421 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 15:41:43,443 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-11-09 15:41:43,614 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-11-09 15:41:44,563 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-11-09 15:41:44,696 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:41:44,973 WARN L194 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-11-09 15:41:45,087 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:41:45,247 INFO L131 LiptonReduction]: Checked pairs total: 2926 [2020-11-09 15:41:45,247 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-11-09 15:41:45,254 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 15:41:45,282 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 15:41:45,284 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 15:41:45,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 15:41:45,292 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:45,293 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:41:45,293 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:45,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:45,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1098074663, now seen corresponding path program 1 times [2020-11-09 15:41:45,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:45,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279649000] [2020-11-09 15:41:45,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:45,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:41:45,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279649000] [2020-11-09 15:41:45,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:45,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:41:45,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1218402811] [2020-11-09 15:41:45,648 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:45,653 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:45,670 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 15:41:45,671 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:45,678 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:41:45,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:41:45,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:45,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:41:45,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:41:45,711 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-11-09 15:41:45,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:45,815 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-11-09 15:41:45,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:41:45,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 15:41:45,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:45,849 INFO L225 Difference]: With dead ends: 282 [2020-11-09 15:41:45,849 INFO L226 Difference]: Without dead ends: 218 [2020-11-09 15:41:45,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:41:45,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-09 15:41:45,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-09 15:41:45,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-09 15:41:45,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-11-09 15:41:45,982 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-11-09 15:41:45,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:45,984 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-11-09 15:41:45,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:41:45,985 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-11-09 15:41:45,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:41:45,987 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:45,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:41:45,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:41:45,988 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:45,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:45,993 INFO L82 PathProgramCache]: Analyzing trace with hash 305615834, now seen corresponding path program 1 times [2020-11-09 15:41:45,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:45,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156134341] [2020-11-09 15:41:45,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:46,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:41:46,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156134341] [2020-11-09 15:41:46,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:46,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:41:46,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1153276342] [2020-11-09 15:41:46,138 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:46,139 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:46,142 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-11-09 15:41:46,145 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:46,174 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:41:46,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:41:46,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:46,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:41:46,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:41:46,179 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-11-09 15:41:46,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:46,214 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-11-09 15:41:46,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:41:46,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-09 15:41:46,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:46,219 INFO L225 Difference]: With dead ends: 202 [2020-11-09 15:41:46,219 INFO L226 Difference]: Without dead ends: 202 [2020-11-09 15:41:46,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:41:46,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-11-09 15:41:46,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-11-09 15:41:46,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-11-09 15:41:46,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-11-09 15:41:46,253 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-11-09 15:41:46,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:46,253 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-11-09 15:41:46,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:41:46,253 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-11-09 15:41:46,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:41:46,256 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:46,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:41:46,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:41:46,257 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:46,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:46,263 INFO L82 PathProgramCache]: Analyzing trace with hash 839872088, now seen corresponding path program 1 times [2020-11-09 15:41:46,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:46,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950228778] [2020-11-09 15:41:46,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:46,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:41:46,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950228778] [2020-11-09 15:41:46,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:46,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:41:46,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1117021102] [2020-11-09 15:41:46,387 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:46,389 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:46,392 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-11-09 15:41:46,393 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:46,443 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:41:46,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:41:46,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:46,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:41:46,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:41:46,445 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-11-09 15:41:46,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:46,461 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-11-09 15:41:46,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:41:46,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 15:41:46,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:46,465 INFO L225 Difference]: With dead ends: 194 [2020-11-09 15:41:46,465 INFO L226 Difference]: Without dead ends: 194 [2020-11-09 15:41:46,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:41:46,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-11-09 15:41:46,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-11-09 15:41:46,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-11-09 15:41:46,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 518 transitions. [2020-11-09 15:41:46,489 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 518 transitions. Word has length 10 [2020-11-09 15:41:46,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:46,489 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 518 transitions. [2020-11-09 15:41:46,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:41:46,489 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-11-09 15:41:46,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:41:46,491 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:46,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:41:46,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:41:46,493 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:46,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:46,495 INFO L82 PathProgramCache]: Analyzing trace with hash 266199867, now seen corresponding path program 1 times [2020-11-09 15:41:46,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:46,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326170573] [2020-11-09 15:41:46,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:46,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:46,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:41:46,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326170573] [2020-11-09 15:41:46,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:46,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:41:46,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1805291695] [2020-11-09 15:41:46,658 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:46,660 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:46,662 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 15:41:46,663 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:46,711 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:41:46,754 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:41:46,773 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:41:46,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:41:46,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:46,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:41:46,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:41:46,775 INFO L87 Difference]: Start difference. First operand 194 states and 518 transitions. Second operand 4 states. [2020-11-09 15:41:46,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:46,812 INFO L93 Difference]: Finished difference Result 225 states and 557 transitions. [2020-11-09 15:41:46,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:41:46,812 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 15:41:46,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:46,814 INFO L225 Difference]: With dead ends: 225 [2020-11-09 15:41:46,814 INFO L226 Difference]: Without dead ends: 161 [2020-11-09 15:41:46,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:41:46,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-11-09 15:41:46,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2020-11-09 15:41:46,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-11-09 15:41:46,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 386 transitions. [2020-11-09 15:41:46,822 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 386 transitions. Word has length 11 [2020-11-09 15:41:46,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:46,823 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 386 transitions. [2020-11-09 15:41:46,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:41:46,823 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 386 transitions. [2020-11-09 15:41:46,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:41:46,824 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:46,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:41:46,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:41:46,825 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:46,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:46,826 INFO L82 PathProgramCache]: Analyzing trace with hash -297551950, now seen corresponding path program 1 times [2020-11-09 15:41:46,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:46,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397165909] [2020-11-09 15:41:46,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:46,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:41:46,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397165909] [2020-11-09 15:41:46,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:46,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:41:46,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [341409792] [2020-11-09 15:41:46,904 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:46,906 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:46,908 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-11-09 15:41:46,908 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:46,959 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3158#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 15:41:46,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 15:41:46,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:46,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 15:41:46,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 15:41:46,960 INFO L87 Difference]: Start difference. First operand 161 states and 386 transitions. Second operand 6 states. [2020-11-09 15:41:47,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:47,009 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-11-09 15:41:47,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 15:41:47,010 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-11-09 15:41:47,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:47,011 INFO L225 Difference]: With dead ends: 160 [2020-11-09 15:41:47,011 INFO L226 Difference]: Without dead ends: 123 [2020-11-09 15:41:47,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:41:47,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-11-09 15:41:47,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-11-09 15:41:47,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-09 15:41:47,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-11-09 15:41:47,016 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 12 [2020-11-09 15:41:47,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:47,016 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-11-09 15:41:47,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 15:41:47,017 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-11-09 15:41:47,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:41:47,017 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:47,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:41:47,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:41:47,018 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:47,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:47,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1813731877, now seen corresponding path program 1 times [2020-11-09 15:41:47,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:47,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194179194] [2020-11-09 15:41:47,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:47,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:41:47,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194179194] [2020-11-09 15:41:47,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:47,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:41:47,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [373928542] [2020-11-09 15:41:47,091 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:47,093 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:47,095 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-11-09 15:41:47,096 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:47,133 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3573#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 15:41:47,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 15:41:47,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:47,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 15:41:47,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:41:47,135 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 7 states. [2020-11-09 15:41:47,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:47,198 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-11-09 15:41:47,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:41:47,199 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-11-09 15:41:47,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:47,200 INFO L225 Difference]: With dead ends: 118 [2020-11-09 15:41:47,200 INFO L226 Difference]: Without dead ends: 108 [2020-11-09 15:41:47,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 15:41:47,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-09 15:41:47,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-11-09 15:41:47,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-09 15:41:47,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-11-09 15:41:47,205 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-11-09 15:41:47,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:47,205 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-11-09 15:41:47,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 15:41:47,205 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-11-09 15:41:47,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 15:41:47,206 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:47,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:41:47,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:41:47,206 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:47,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:47,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1641541318, now seen corresponding path program 1 times [2020-11-09 15:41:47,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:47,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264312194] [2020-11-09 15:41:47,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:47,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:41:47,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264312194] [2020-11-09 15:41:47,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:47,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:41:47,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1311930625] [2020-11-09 15:41:47,245 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:47,247 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:47,255 INFO L252 McrAutomatonBuilder]: Finished intersection with 54 states and 100 transitions. [2020-11-09 15:41:47,255 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:47,458 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:41:47,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:41:47,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:47,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:41:47,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:41:47,460 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-11-09 15:41:47,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:47,478 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-11-09 15:41:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:41:47,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 15:41:47,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:47,480 INFO L225 Difference]: With dead ends: 133 [2020-11-09 15:41:47,480 INFO L226 Difference]: Without dead ends: 54 [2020-11-09 15:41:47,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:41:47,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-09 15:41:47,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-09 15:41:47,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-09 15:41:47,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-11-09 15:41:47,483 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-11-09 15:41:47,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:47,483 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-11-09 15:41:47,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:41:47,483 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-11-09 15:41:47,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 15:41:47,483 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:47,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:41:47,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 15:41:47,484 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:47,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:47,485 INFO L82 PathProgramCache]: Analyzing trace with hash -2114303388, now seen corresponding path program 2 times [2020-11-09 15:41:47,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:47,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655636638] [2020-11-09 15:41:47,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:47,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:41:47,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655636638] [2020-11-09 15:41:47,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:47,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:41:47,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [650294124] [2020-11-09 15:41:47,527 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:47,530 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:47,534 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-11-09 15:41:47,534 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:47,563 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:41:47,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:41:47,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:47,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:41:47,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:41:47,564 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-11-09 15:41:47,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:47,592 INFO L93 Difference]: Finished difference Result 63 states and 111 transitions. [2020-11-09 15:41:47,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:41:47,592 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 15:41:47,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:47,593 INFO L225 Difference]: With dead ends: 63 [2020-11-09 15:41:47,593 INFO L226 Difference]: Without dead ends: 38 [2020-11-09 15:41:47,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:41:47,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-09 15:41:47,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-09 15:41:47,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-09 15:41:47,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-11-09 15:41:47,595 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 17 [2020-11-09 15:41:47,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:47,596 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-11-09 15:41:47,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:41:47,596 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-11-09 15:41:47,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 15:41:47,596 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:47,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:41:47,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 15:41:47,597 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:47,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:47,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1534085368, now seen corresponding path program 3 times [2020-11-09 15:41:47,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:47,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630933118] [2020-11-09 15:41:47,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:47,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:41:47,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630933118] [2020-11-09 15:41:47,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:47,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:41:47,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [281293777] [2020-11-09 15:41:47,639 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:47,641 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:47,645 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 29 transitions. [2020-11-09 15:41:47,645 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:47,654 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:41:47,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:41:47,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:47,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:41:47,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:41:47,656 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-11-09 15:41:47,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:47,709 INFO L93 Difference]: Finished difference Result 51 states and 83 transitions. [2020-11-09 15:41:47,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:41:47,709 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 15:41:47,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:47,710 INFO L225 Difference]: With dead ends: 51 [2020-11-09 15:41:47,710 INFO L226 Difference]: Without dead ends: 30 [2020-11-09 15:41:47,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:41:47,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-09 15:41:47,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-09 15:41:47,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-09 15:41:47,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-09 15:41:47,712 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-11-09 15:41:47,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:47,712 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-09 15:41:47,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:41:47,713 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-09 15:41:47,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 15:41:47,713 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:47,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:41:47,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 15:41:47,714 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:47,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:47,714 INFO L82 PathProgramCache]: Analyzing trace with hash 172930902, now seen corresponding path program 4 times [2020-11-09 15:41:47,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:47,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369056595] [2020-11-09 15:41:47,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:47,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:41:47,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369056595] [2020-11-09 15:41:47,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:47,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:41:47,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1861776342] [2020-11-09 15:41:47,754 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:47,756 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:47,760 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 29 transitions. [2020-11-09 15:41:47,760 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:47,776 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:41:47,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:41:47,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:47,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:41:47,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:41:47,778 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-11-09 15:41:47,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:47,795 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-11-09 15:41:47,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:41:47,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 15:41:47,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:47,796 INFO L225 Difference]: With dead ends: 29 [2020-11-09 15:41:47,796 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:41:47,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:41:47,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:41:47,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:41:47,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:41:47,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:41:47,797 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 15:41:47,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:47,797 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:41:47,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:41:47,798 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:41:47,798 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:41:47,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-09 15:41:47,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:41:47 BasicIcfg [2020-11-09 15:41:47,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:41:47,803 INFO L168 Benchmark]: Toolchain (without parser) took 9074.87 ms. Allocated memory was 160.4 MB in the beginning and 231.7 MB in the end (delta: 71.3 MB). Free memory was 134.7 MB in the beginning and 192.2 MB in the end (delta: -57.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 8.0 GB. [2020-11-09 15:41:47,804 INFO L168 Benchmark]: CDTParser took 1.28 ms. Allocated memory is still 160.4 MB. Free memory was 133.3 MB in the beginning and 133.2 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:41:47,805 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.11 ms. Allocated memory is still 160.4 MB. Free memory was 133.9 MB in the beginning and 137.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:41:47,806 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.15 ms. Allocated memory is still 160.4 MB. Free memory was 137.4 MB in the beginning and 135.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:41:47,807 INFO L168 Benchmark]: Boogie Preprocessor took 29.33 ms. Allocated memory is still 160.4 MB. Free memory was 135.3 MB in the beginning and 134.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:41:47,807 INFO L168 Benchmark]: RCFGBuilder took 613.96 ms. Allocated memory is still 160.4 MB. Free memory was 134.3 MB in the beginning and 111.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:41:47,808 INFO L168 Benchmark]: TraceAbstraction took 7604.88 ms. Allocated memory was 160.4 MB in the beginning and 231.7 MB in the end (delta: 71.3 MB). Free memory was 110.7 MB in the beginning and 192.2 MB in the end (delta: -81.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:41:47,812 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.28 ms. Allocated memory is still 160.4 MB. Free memory was 133.3 MB in the beginning and 133.2 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 750.11 ms. Allocated memory is still 160.4 MB. Free memory was 133.9 MB in the beginning and 137.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 60.15 ms. Allocated memory is still 160.4 MB. Free memory was 137.4 MB in the beginning and 135.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.33 ms. Allocated memory is still 160.4 MB. Free memory was 135.3 MB in the beginning and 134.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 613.96 ms. Allocated memory is still 160.4 MB. Free memory was 134.3 MB in the beginning and 111.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7604.88 ms. Allocated memory was 160.4 MB in the beginning and 231.7 MB in the end (delta: 71.3 MB). Free memory was 110.7 MB in the beginning and 192.2 MB in the end (delta: -81.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 787 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 52 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.8s, 86 PlacesBefore, 31 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 2926 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.9s, HoareTripleCheckerStatistics: 206 SDtfs, 132 SDslu, 271 SDs, 0 SdLazy, 135 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 89 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 4312 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...