/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 17:11:21,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 17:11:21,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 17:11:21,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 17:11:21,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-21 17:11:21,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-21 17:11:21,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-21 17:11:21,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-21 17:11:21,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-21 17:11:21,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-21 17:11:21,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-21 17:11:21,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-21 17:11:21,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-21 17:11:21,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-21 17:11:21,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-21 17:11:21,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-21 17:11:21,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-21 17:11:21,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 17:11:21,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 17:11:21,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 17:11:21,155 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-Delay.epf [2021-08-21 17:11:21,192 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 17:11:21,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 17:11:21,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 17:11:21,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 17:11:21,195 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 17:11:21,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 17:11:21,196 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 17:11:21,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 17:11:21,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 17:11:21,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 17:11:21,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 17:11:21,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 17:11:21,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 17:11:21,197 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 17:11:21,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 17:11:21,198 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 17:11:21,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 17:11:21,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 17:11:21,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 17:11:21,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 17:11:21,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 17:11:21,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 17:11:21,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 17:11:21,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 17:11:21,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 17:11:21,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 17:11:21,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 17:11:21,200 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 17:11:21,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 17:11:21,200 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-21 17:11:21,200 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 17:11:21,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 17:11:21,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 17:11:21,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 17:11:21,565 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-21 17:11:21,567 INFO L275 PluginConnector]: CDTParser initialized [2021-08-21 17:11:21,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2021-08-21 17:11:21,629 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43a47c587/3bd36f65fb5c45e3a03b6ba1a514a59e/FLAGdca8e907a [2021-08-21 17:11:22,097 INFO L306 CDTParser]: Found 1 translation units. [2021-08-21 17:11:22,098 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2021-08-21 17:11:22,111 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43a47c587/3bd36f65fb5c45e3a03b6ba1a514a59e/FLAGdca8e907a [2021-08-21 17:11:22,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43a47c587/3bd36f65fb5c45e3a03b6ba1a514a59e [2021-08-21 17:11:22,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 17:11:22,129 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-21 17:11:22,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-21 17:11:22,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-21 17:11:22,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-21 17:11:22,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:11:22" (1/1) ... [2021-08-21 17:11:22,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fc68794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:22, skipping insertion in model container [2021-08-21 17:11:22,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:11:22" (1/1) ... [2021-08-21 17:11:22,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-21 17:11:22,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-21 17:11:22,378 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i[949,962] [2021-08-21 17:11:22,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 17:11:22,546 INFO L203 MainTranslator]: Completed pre-run [2021-08-21 17:11:22,558 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i[949,962] [2021-08-21 17:11:22,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 17:11:22,640 INFO L208 MainTranslator]: Completed translation [2021-08-21 17:11:22,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:22 WrapperNode [2021-08-21 17:11:22,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-21 17:11:22,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 17:11:22,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 17:11:22,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 17:11:22,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:22" (1/1) ... [2021-08-21 17:11:22,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:22" (1/1) ... [2021-08-21 17:11:22,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 17:11:22,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 17:11:22,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 17:11:22,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 17:11:22,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:22" (1/1) ... [2021-08-21 17:11:22,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:22" (1/1) ... [2021-08-21 17:11:22,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:22" (1/1) ... [2021-08-21 17:11:22,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:22" (1/1) ... [2021-08-21 17:11:22,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:22" (1/1) ... [2021-08-21 17:11:22,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:22" (1/1) ... [2021-08-21 17:11:22,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:22" (1/1) ... [2021-08-21 17:11:22,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 17:11:22,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 17:11:22,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 17:11:22,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 17:11:22,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:22" (1/1) ... [2021-08-21 17:11:22,765 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 17:11:22,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 17:11:22,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 17:11:22,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 17:11:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-21 17:11:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-21 17:11:22,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-21 17:11:22,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-21 17:11:22,834 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-21 17:11:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-21 17:11:22,834 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-21 17:11:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-21 17:11:22,834 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-21 17:11:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-21 17:11:22,834 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-08-21 17:11:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-08-21 17:11:22,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-21 17:11:22,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-21 17:11:22,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 17:11:22,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 17:11:22,836 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 17:11:23,258 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 17:11:23,258 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-21 17:11:23,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:11:23 BoogieIcfgContainer [2021-08-21 17:11:23,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 17:11:23,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 17:11:23,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 17:11:23,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 17:11:23,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 05:11:22" (1/3) ... [2021-08-21 17:11:23,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7012ef3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:11:23, skipping insertion in model container [2021-08-21 17:11:23,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:22" (2/3) ... [2021-08-21 17:11:23,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7012ef3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:11:23, skipping insertion in model container [2021-08-21 17:11:23,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:11:23" (3/3) ... [2021-08-21 17:11:23,266 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2021-08-21 17:11:23,271 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 17:11:23,271 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 17:11:23,271 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 17:11:23,271 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 17:11:23,309 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,309 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,310 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,310 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,310 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,310 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,310 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,310 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,311 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,312 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,312 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,312 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,312 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,312 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,312 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,312 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,314 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,314 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,314 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,315 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,316 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,316 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,316 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,316 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,316 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,316 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,316 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,317 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,317 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,317 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,317 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,317 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,320 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,320 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,321 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,321 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,326 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,327 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,327 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,327 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,330 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,330 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,330 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,330 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,333 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,334 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,334 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,334 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:23,336 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 17:11:23,374 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 17:11:23,380 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 17:11:23,380 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-21 17:11:25,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 28884 states, 24124 states have (on average 2.1248963687613993) internal successors, (51261), 28883 states have internal predecessors, (51261), 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) [2021-08-21 17:11:25,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-21 17:11:25,823 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:25,823 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:25,824 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:25,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:25,832 INFO L82 PathProgramCache]: Analyzing trace with hash -368205386, now seen corresponding path program 1 times [2021-08-21 17:11:25,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:25,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883902016] [2021-08-21 17:11:25,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:25,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:26,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:26,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:26,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883902016] [2021-08-21 17:11:26,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883902016] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:26,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:26,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:26,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446505474] [2021-08-21 17:11:26,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:26,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:26,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:26,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:26,496 INFO L87 Difference]: Start difference. First operand has 28884 states, 24124 states have (on average 2.1248963687613993) internal successors, (51261), 28883 states have internal predecessors, (51261), 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 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:27,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:27,026 INFO L93 Difference]: Finished difference Result 32916 states and 59223 transitions. [2021-08-21 17:11:27,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 17:11:27,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-08-21 17:11:27,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:27,139 INFO L225 Difference]: With dead ends: 32916 [2021-08-21 17:11:27,140 INFO L226 Difference]: Without dead ends: 11410 [2021-08-21 17:11:27,141 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 168.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-21 17:11:27,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11410 states. [2021-08-21 17:11:27,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11410 to 11410. [2021-08-21 17:11:27,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11410 states, 11200 states have (on average 2.380089285714286) internal successors, (26657), 11409 states have internal predecessors, (26657), 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) [2021-08-21 17:11:27,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11410 states to 11410 states and 26657 transitions. [2021-08-21 17:11:27,777 INFO L78 Accepts]: Start accepts. Automaton has 11410 states and 26657 transitions. Word has length 57 [2021-08-21 17:11:27,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:27,778 INFO L470 AbstractCegarLoop]: Abstraction has 11410 states and 26657 transitions. [2021-08-21 17:11:27,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:27,779 INFO L276 IsEmpty]: Start isEmpty. Operand 11410 states and 26657 transitions. [2021-08-21 17:11:27,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-21 17:11:27,790 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:27,790 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:27,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 17:11:27,790 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:27,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:27,791 INFO L82 PathProgramCache]: Analyzing trace with hash -995243369, now seen corresponding path program 1 times [2021-08-21 17:11:27,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:27,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766658986] [2021-08-21 17:11:27,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:27,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:28,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:28,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:28,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766658986] [2021-08-21 17:11:28,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766658986] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:28,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:28,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:28,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467885733] [2021-08-21 17:11:28,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:28,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:28,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:28,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:28,063 INFO L87 Difference]: Start difference. First operand 11410 states and 26657 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:28,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:28,732 INFO L93 Difference]: Finished difference Result 15818 states and 38196 transitions. [2021-08-21 17:11:28,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-21 17:11:28,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-08-21 17:11:28,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:28,794 INFO L225 Difference]: With dead ends: 15818 [2021-08-21 17:11:28,794 INFO L226 Difference]: Without dead ends: 11726 [2021-08-21 17:11:28,795 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 395.6ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-08-21 17:11:28,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11726 states. [2021-08-21 17:11:29,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11726 to 11726. [2021-08-21 17:11:29,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11726 states, 11520 states have (on average 2.368142361111111) internal successors, (27281), 11725 states have internal predecessors, (27281), 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) [2021-08-21 17:11:29,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11726 states to 11726 states and 27281 transitions. [2021-08-21 17:11:29,211 INFO L78 Accepts]: Start accepts. Automaton has 11726 states and 27281 transitions. Word has length 59 [2021-08-21 17:11:29,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:29,212 INFO L470 AbstractCegarLoop]: Abstraction has 11726 states and 27281 transitions. [2021-08-21 17:11:29,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:29,212 INFO L276 IsEmpty]: Start isEmpty. Operand 11726 states and 27281 transitions. [2021-08-21 17:11:29,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-08-21 17:11:29,224 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:29,224 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:29,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 17:11:29,225 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:29,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:29,226 INFO L82 PathProgramCache]: Analyzing trace with hash 711776996, now seen corresponding path program 1 times [2021-08-21 17:11:29,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:29,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736787001] [2021-08-21 17:11:29,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:29,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:29,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:29,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:29,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736787001] [2021-08-21 17:11:29,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736787001] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:29,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:29,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:29,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558892901] [2021-08-21 17:11:29,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:29,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:29,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:29,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:29,348 INFO L87 Difference]: Start difference. First operand 11726 states and 27281 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2021-08-21 17:11:29,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:29,526 INFO L93 Difference]: Finished difference Result 13406 states and 32097 transitions. [2021-08-21 17:11:29,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 17:11:29,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2021-08-21 17:11:29,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:29,560 INFO L225 Difference]: With dead ends: 13406 [2021-08-21 17:11:29,561 INFO L226 Difference]: Without dead ends: 9256 [2021-08-21 17:11:29,561 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 93.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-21 17:11:29,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9256 states. [2021-08-21 17:11:29,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9256 to 9184. [2021-08-21 17:11:29,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9184 states, 9034 states have (on average 2.4236218729245076) internal successors, (21895), 9183 states have internal predecessors, (21895), 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) [2021-08-21 17:11:29,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9184 states to 9184 states and 21895 transitions. [2021-08-21 17:11:29,919 INFO L78 Accepts]: Start accepts. Automaton has 9184 states and 21895 transitions. Word has length 60 [2021-08-21 17:11:29,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:29,919 INFO L470 AbstractCegarLoop]: Abstraction has 9184 states and 21895 transitions. [2021-08-21 17:11:29,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2021-08-21 17:11:29,920 INFO L276 IsEmpty]: Start isEmpty. Operand 9184 states and 21895 transitions. [2021-08-21 17:11:29,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-08-21 17:11:29,932 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:29,933 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:29,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 17:11:29,933 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:29,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:29,934 INFO L82 PathProgramCache]: Analyzing trace with hash -110727229, now seen corresponding path program 1 times [2021-08-21 17:11:29,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:29,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759532344] [2021-08-21 17:11:29,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:29,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:30,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:30,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:30,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759532344] [2021-08-21 17:11:30,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759532344] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:30,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:30,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 17:11:30,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787986333] [2021-08-21 17:11:30,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 17:11:30,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:30,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 17:11:30,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-21 17:11:30,059 INFO L87 Difference]: Start difference. First operand 9184 states and 21895 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2021-08-21 17:11:30,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:30,340 INFO L93 Difference]: Finished difference Result 13004 states and 31717 transitions. [2021-08-21 17:11:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-21 17:11:30,341 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 62 [2021-08-21 17:11:30,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:30,363 INFO L225 Difference]: With dead ends: 13004 [2021-08-21 17:11:30,363 INFO L226 Difference]: Without dead ends: 6168 [2021-08-21 17:11:30,364 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 125.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-21 17:11:30,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6168 states. [2021-08-21 17:11:30,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6168 to 6168. [2021-08-21 17:11:30,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6168 states, 6068 states have (on average 2.478081740276862) internal successors, (15037), 6167 states have internal predecessors, (15037), 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) [2021-08-21 17:11:30,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6168 states to 6168 states and 15037 transitions. [2021-08-21 17:11:30,512 INFO L78 Accepts]: Start accepts. Automaton has 6168 states and 15037 transitions. Word has length 62 [2021-08-21 17:11:30,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:30,513 INFO L470 AbstractCegarLoop]: Abstraction has 6168 states and 15037 transitions. [2021-08-21 17:11:30,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2021-08-21 17:11:30,513 INFO L276 IsEmpty]: Start isEmpty. Operand 6168 states and 15037 transitions. [2021-08-21 17:11:30,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-21 17:11:30,522 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:30,522 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:30,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 17:11:30,523 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:30,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:30,523 INFO L82 PathProgramCache]: Analyzing trace with hash -581245543, now seen corresponding path program 1 times [2021-08-21 17:11:30,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:30,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951472540] [2021-08-21 17:11:30,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:30,524 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:30,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:30,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:30,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951472540] [2021-08-21 17:11:30,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951472540] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:30,627 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:30,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:30,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446774836] [2021-08-21 17:11:30,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:30,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:30,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:30,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:30,629 INFO L87 Difference]: Start difference. First operand 6168 states and 15037 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-08-21 17:11:30,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:30,805 INFO L93 Difference]: Finished difference Result 7918 states and 21163 transitions. [2021-08-21 17:11:30,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 17:11:30,806 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 63 [2021-08-21 17:11:30,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:30,820 INFO L225 Difference]: With dead ends: 7918 [2021-08-21 17:11:30,821 INFO L226 Difference]: Without dead ends: 3288 [2021-08-21 17:11:30,821 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 117.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-08-21 17:11:30,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2021-08-21 17:11:30,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 3288. [2021-08-21 17:11:30,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3188 states have (on average 2.998431618569636) internal successors, (9559), 3287 states have internal predecessors, (9559), 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) [2021-08-21 17:11:30,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 9559 transitions. [2021-08-21 17:11:30,906 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 9559 transitions. Word has length 63 [2021-08-21 17:11:30,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:30,907 INFO L470 AbstractCegarLoop]: Abstraction has 3288 states and 9559 transitions. [2021-08-21 17:11:30,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-08-21 17:11:30,907 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 9559 transitions. [2021-08-21 17:11:30,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-08-21 17:11:30,913 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:30,913 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:30,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 17:11:30,913 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:30,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:30,914 INFO L82 PathProgramCache]: Analyzing trace with hash -2005893868, now seen corresponding path program 1 times [2021-08-21 17:11:30,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:30,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431638393] [2021-08-21 17:11:30,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:30,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:31,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:31,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:31,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431638393] [2021-08-21 17:11:31,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431638393] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:31,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:31,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 17:11:31,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711125804] [2021-08-21 17:11:31,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 17:11:31,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:31,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 17:11:31,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 17:11:31,006 INFO L87 Difference]: Start difference. First operand 3288 states and 9559 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2021-08-21 17:11:31,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:31,131 INFO L93 Difference]: Finished difference Result 4372 states and 12521 transitions. [2021-08-21 17:11:31,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 17:11:31,132 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 65 [2021-08-21 17:11:31,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:31,143 INFO L225 Difference]: With dead ends: 4372 [2021-08-21 17:11:31,144 INFO L226 Difference]: Without dead ends: 3144 [2021-08-21 17:11:31,144 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 73.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-21 17:11:31,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2021-08-21 17:11:31,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 3144. [2021-08-21 17:11:31,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3144 states, 3044 states have (on average 3.0272667542706966) internal successors, (9215), 3143 states have internal predecessors, (9215), 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) [2021-08-21 17:11:31,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3144 states to 3144 states and 9215 transitions. [2021-08-21 17:11:31,222 INFO L78 Accepts]: Start accepts. Automaton has 3144 states and 9215 transitions. Word has length 65 [2021-08-21 17:11:31,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:31,223 INFO L470 AbstractCegarLoop]: Abstraction has 3144 states and 9215 transitions. [2021-08-21 17:11:31,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2021-08-21 17:11:31,223 INFO L276 IsEmpty]: Start isEmpty. Operand 3144 states and 9215 transitions. [2021-08-21 17:11:31,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-08-21 17:11:31,230 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:31,230 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:31,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 17:11:31,231 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:31,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:31,231 INFO L82 PathProgramCache]: Analyzing trace with hash 488378848, now seen corresponding path program 1 times [2021-08-21 17:11:31,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:31,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135803377] [2021-08-21 17:11:31,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:31,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:31,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:31,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:31,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135803377] [2021-08-21 17:11:31,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135803377] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:31,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:31,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:31,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795380477] [2021-08-21 17:11:31,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:31,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:31,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:31,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:31,344 INFO L87 Difference]: Start difference. First operand 3144 states and 9215 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2021-08-21 17:11:31,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:31,491 INFO L93 Difference]: Finished difference Result 3705 states and 10633 transitions. [2021-08-21 17:11:31,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 17:11:31,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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 66 [2021-08-21 17:11:31,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:31,502 INFO L225 Difference]: With dead ends: 3705 [2021-08-21 17:11:31,502 INFO L226 Difference]: Without dead ends: 2569 [2021-08-21 17:11:31,502 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 94.9ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-08-21 17:11:31,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2021-08-21 17:11:31,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 2569. [2021-08-21 17:11:31,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2569 states, 2473 states have (on average 3.028710068742418) internal successors, (7490), 2568 states have internal predecessors, (7490), 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) [2021-08-21 17:11:31,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 7490 transitions. [2021-08-21 17:11:31,564 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 7490 transitions. Word has length 66 [2021-08-21 17:11:31,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:31,566 INFO L470 AbstractCegarLoop]: Abstraction has 2569 states and 7490 transitions. [2021-08-21 17:11:31,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2021-08-21 17:11:31,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 7490 transitions. [2021-08-21 17:11:31,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-08-21 17:11:31,573 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:31,573 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:31,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-21 17:11:31,573 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:31,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:31,574 INFO L82 PathProgramCache]: Analyzing trace with hash 796927355, now seen corresponding path program 1 times [2021-08-21 17:11:31,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:31,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940519532] [2021-08-21 17:11:31,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:31,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:31,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:31,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:31,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940519532] [2021-08-21 17:11:31,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940519532] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:31,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:31,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 17:11:31,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066039111] [2021-08-21 17:11:31,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 17:11:31,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:31,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 17:11:31,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-21 17:11:31,716 INFO L87 Difference]: Start difference. First operand 2569 states and 7490 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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) [2021-08-21 17:11:31,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:31,880 INFO L93 Difference]: Finished difference Result 2398 states and 6651 transitions. [2021-08-21 17:11:31,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-21 17:11:31,881 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2021-08-21 17:11:31,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:31,887 INFO L225 Difference]: With dead ends: 2398 [2021-08-21 17:11:31,887 INFO L226 Difference]: Without dead ends: 1558 [2021-08-21 17:11:31,888 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 112.7ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-08-21 17:11:31,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2021-08-21 17:11:31,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1558. [2021-08-21 17:11:31,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1486 states have (on average 2.833109017496635) internal successors, (4210), 1557 states have internal predecessors, (4210), 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) [2021-08-21 17:11:31,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 4210 transitions. [2021-08-21 17:11:31,922 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 4210 transitions. Word has length 67 [2021-08-21 17:11:31,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:31,923 INFO L470 AbstractCegarLoop]: Abstraction has 1558 states and 4210 transitions. [2021-08-21 17:11:31,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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) [2021-08-21 17:11:31,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 4210 transitions. [2021-08-21 17:11:31,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-08-21 17:11:31,927 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:31,927 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:31,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-21 17:11:31,928 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:31,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:31,928 INFO L82 PathProgramCache]: Analyzing trace with hash 567104634, now seen corresponding path program 1 times [2021-08-21 17:11:31,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:31,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484857515] [2021-08-21 17:11:31,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:31,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:32,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:32,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:32,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484857515] [2021-08-21 17:11:32,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484857515] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:32,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:32,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-21 17:11:32,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052898750] [2021-08-21 17:11:32,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-21 17:11:32,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:32,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-21 17:11:32,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-21 17:11:32,039 INFO L87 Difference]: Start difference. First operand 1558 states and 4210 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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) [2021-08-21 17:11:32,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:32,220 INFO L93 Difference]: Finished difference Result 1072 states and 2685 transitions. [2021-08-21 17:11:32,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-21 17:11:32,221 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 69 [2021-08-21 17:11:32,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:32,222 INFO L225 Difference]: With dead ends: 1072 [2021-08-21 17:11:32,222 INFO L226 Difference]: Without dead ends: 631 [2021-08-21 17:11:32,223 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 127.4ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-08-21 17:11:32,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-08-21 17:11:32,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2021-08-21 17:11:32,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 604 states have (on average 2.3427152317880795) internal successors, (1415), 630 states have internal predecessors, (1415), 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) [2021-08-21 17:11:32,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 1415 transitions. [2021-08-21 17:11:32,234 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 1415 transitions. Word has length 69 [2021-08-21 17:11:32,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:32,234 INFO L470 AbstractCegarLoop]: Abstraction has 631 states and 1415 transitions. [2021-08-21 17:11:32,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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) [2021-08-21 17:11:32,234 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 1415 transitions. [2021-08-21 17:11:32,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-21 17:11:32,236 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:32,236 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:32,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-21 17:11:32,236 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:32,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:32,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1611891141, now seen corresponding path program 1 times [2021-08-21 17:11:32,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:32,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696720179] [2021-08-21 17:11:32,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:32,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:32,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:32,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:32,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696720179] [2021-08-21 17:11:32,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696720179] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:32,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:32,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:32,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99914952] [2021-08-21 17:11:32,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:32,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:32,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:32,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:32,348 INFO L87 Difference]: Start difference. First operand 631 states and 1415 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2021-08-21 17:11:32,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:32,458 INFO L93 Difference]: Finished difference Result 997 states and 2395 transitions. [2021-08-21 17:11:32,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 17:11:32,459 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 71 [2021-08-21 17:11:32,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:32,461 INFO L225 Difference]: With dead ends: 997 [2021-08-21 17:11:32,461 INFO L226 Difference]: Without dead ends: 599 [2021-08-21 17:11:32,462 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 107.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-21 17:11:32,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-08-21 17:11:32,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 567. [2021-08-21 17:11:32,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 540 states have (on average 2.412962962962963) internal successors, (1303), 566 states have internal predecessors, (1303), 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) [2021-08-21 17:11:32,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 1303 transitions. [2021-08-21 17:11:32,471 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 1303 transitions. Word has length 71 [2021-08-21 17:11:32,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:32,472 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 1303 transitions. [2021-08-21 17:11:32,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2021-08-21 17:11:32,472 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 1303 transitions. [2021-08-21 17:11:32,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-21 17:11:32,473 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:32,473 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:32,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-21 17:11:32,474 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:32,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:32,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1848623557, now seen corresponding path program 2 times [2021-08-21 17:11:32,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:32,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488340229] [2021-08-21 17:11:32,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:32,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:32,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:32,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:32,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488340229] [2021-08-21 17:11:32,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488340229] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:32,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:32,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:32,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230816046] [2021-08-21 17:11:32,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:32,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:32,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:32,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:32,575 INFO L87 Difference]: Start difference. First operand 567 states and 1303 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2021-08-21 17:11:32,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:32,673 INFO L93 Difference]: Finished difference Result 459 states and 1087 transitions. [2021-08-21 17:11:32,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 17:11:32,674 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 71 [2021-08-21 17:11:32,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:32,674 INFO L225 Difference]: With dead ends: 459 [2021-08-21 17:11:32,674 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 17:11:32,674 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 102.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-21 17:11:32,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 17:11:32,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 17:11:32,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:32,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 17:11:32,675 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2021-08-21 17:11:32,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:32,675 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 17:11:32,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2021-08-21 17:11:32,676 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 17:11:32,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 17:11:32,678 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 17:11:32,678 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 17:11:32,678 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 17:11:32,678 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 17:11:32,679 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-21 17:11:32,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-21 17:11:32,682 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 17:11:32,682 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 17:11:32,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 05:11:32 BasicIcfg [2021-08-21 17:11:32,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 17:11:32,685 INFO L168 Benchmark]: Toolchain (without parser) took 10555.34 ms. Allocated memory was 240.1 MB in the beginning and 2.5 GB in the end (delta: 2.3 GB). Free memory was 203.3 MB in the beginning and 1.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 905.6 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:32,685 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 240.1 MB. Free memory is still 221.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 17:11:32,685 INFO L168 Benchmark]: CACSL2BoogieTranslator took 510.00 ms. Allocated memory is still 240.1 MB. Free memory was 203.1 MB in the beginning and 211.8 MB in the end (delta: -8.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:32,686 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.22 ms. Allocated memory is still 240.1 MB. Free memory was 211.8 MB in the beginning and 209.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:32,686 INFO L168 Benchmark]: Boogie Preprocessor took 37.44 ms. Allocated memory is still 240.1 MB. Free memory was 209.7 MB in the beginning and 208.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:32,686 INFO L168 Benchmark]: RCFGBuilder took 513.37 ms. Allocated memory is still 240.1 MB. Free memory was 208.2 MB in the beginning and 182.0 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:32,686 INFO L168 Benchmark]: TraceAbstraction took 9422.27 ms. Allocated memory was 240.1 MB in the beginning and 2.5 GB in the end (delta: 2.3 GB). Free memory was 181.4 MB in the beginning and 1.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 882.1 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:32,688 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 240.1 MB. Free memory is still 221.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 510.00 ms. Allocated memory is still 240.1 MB. Free memory was 203.1 MB in the beginning and 211.8 MB in the end (delta: -8.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 65.22 ms. Allocated memory is still 240.1 MB. Free memory was 211.8 MB in the beginning and 209.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.44 ms. Allocated memory is still 240.1 MB. Free memory was 209.7 MB in the beginning and 208.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 513.37 ms. Allocated memory is still 240.1 MB. Free memory was 208.2 MB in the beginning and 182.0 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9422.27 ms. Allocated memory was 240.1 MB in the beginning and 2.5 GB in the end (delta: 2.3 GB). Free memory was 181.4 MB in the beginning and 1.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 882.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 132501, positive: 129258, positive conditional: 129258, positive unconditional: 0, negative: 3243, negative conditional: 3243, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 132051, positive: 129258, positive conditional: 0, positive unconditional: 129258, negative: 2793, negative conditional: 0, negative unconditional: 2793, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 984, positive: 963, positive conditional: 0, positive unconditional: 963, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 984, positive: 956, positive conditional: 0, positive unconditional: 956, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 132051, positive: 128295, positive conditional: 0, positive unconditional: 128295, negative: 2772, negative conditional: 0, negative unconditional: 2772, unknown: 984, unknown conditional: 0, unknown unconditional: 984] , Statistics on independence cache: Total cache size (in pairs): 984, Positive cache size: 963, Positive conditional cache size: 0, Positive unconditional cache size: 963, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Independence queries for same thread: 450 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 128 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 9309.6ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 325.5ms, AutomataDifference: 3035.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2187.4ms, PartialOrderReductionTime: 2167.7ms, HoareTripleCheckerStatistics: 1231 SDtfs, 1950 SDslu, 4053 SDs, 0 SdLazy, 561 SolverSat, 120 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 553.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1520.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28884occurred in iteration=0, InterpolantAutomatonStates: 115, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1826.3ms AutomataMinimizationTime, 11 MinimizatonAttempts, 104 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 36.4ms SsaConstructionTime, 220.2ms SatisfiabilityAnalysisTime, 1475.8ms InterpolantComputationTime, 710 NumberOfCodeBlocks, 710 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 699 ConstructedInterpolants, 0 QuantifiedInterpolants, 2713 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 17:11:32,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...