/usr/bin/java -Xmx16000000000 -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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 17:26:04,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 17:26:04,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 17:26:04,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 17:26:04,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 17:26:04,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 17:26:04,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 17:26:04,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 17:26:04,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 17:26:04,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 17:26:04,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 17:26:04,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 17:26:04,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 17:26:04,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 17:26:04,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 17:26:04,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 17:26:04,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-21 17:26:04,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 17:26:04,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 17:26:04,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 17:26:04,183 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-05-21 17:26:04,218 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 17:26:04,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 17:26:04,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 17:26:04,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 17:26:04,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 17:26:04,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 17:26:04,222 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 17:26:04,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 17:26:04,222 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 17:26:04,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 17:26:04,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 17:26:04,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 17:26:04,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 17:26:04,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 17:26:04,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 17:26:04,224 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 17:26:04,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 17:26:04,224 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 17:26:04,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 17:26:04,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 17:26:04,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 17:26:04,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 17:26:04,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 17:26:04,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 17:26:04,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 17:26:04,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 17:26:04,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 17:26:04,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 17:26:04,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 17:26:04,225 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 17:26:04,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 17:26:04,226 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 17:26:04,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 17:26:04,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 17:26:04,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 17:26:04,585 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 17:26:04,589 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 17:26:04,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-05-21 17:26:04,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9462d9f7/ce3fe1ef67434233a7ebc6d094907a38/FLAG1feac1737 [2021-05-21 17:26:05,193 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 17:26:05,194 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-05-21 17:26:05,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9462d9f7/ce3fe1ef67434233a7ebc6d094907a38/FLAG1feac1737 [2021-05-21 17:26:05,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9462d9f7/ce3fe1ef67434233a7ebc6d094907a38 [2021-05-21 17:26:05,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 17:26:05,671 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 17:26:05,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 17:26:05,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 17:26:05,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 17:26:05,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:26:05" (1/1) ... [2021-05-21 17:26:05,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12503cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:05, skipping insertion in model container [2021-05-21 17:26:05,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:26:05" (1/1) ... [2021-05-21 17:26:05,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 17:26:05,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 17:26:05,867 WARN L224 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_pso.oepc.i[950,963] [2021-05-21 17:26:06,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:26:06,077 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 17:26:06,088 WARN L224 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_pso.oepc.i[950,963] [2021-05-21 17:26:06,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:26:06,184 INFO L208 MainTranslator]: Completed translation [2021-05-21 17:26:06,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:06 WrapperNode [2021-05-21 17:26:06,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 17:26:06,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 17:26:06,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 17:26:06,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 17:26:06,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:06" (1/1) ... [2021-05-21 17:26:06,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:06" (1/1) ... [2021-05-21 17:26:06,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 17:26:06,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 17:26:06,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 17:26:06,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 17:26:06,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:06" (1/1) ... [2021-05-21 17:26:06,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:06" (1/1) ... [2021-05-21 17:26:06,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:06" (1/1) ... [2021-05-21 17:26:06,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:06" (1/1) ... [2021-05-21 17:26:06,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:06" (1/1) ... [2021-05-21 17:26:06,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:06" (1/1) ... [2021-05-21 17:26:06,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:06" (1/1) ... [2021-05-21 17:26:06,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 17:26:06,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 17:26:06,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 17:26:06,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 17:26:06,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 17:26:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 17:26:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 17:26:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 17:26:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 17:26:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 17:26:06,331 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 17:26:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 17:26:06,331 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 17:26:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-05-21 17:26:06,331 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-05-21 17:26:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-05-21 17:26:06,331 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-05-21 17:26:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 17:26:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 17:26:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 17:26:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 17:26:06,333 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 17:26:06,757 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 17:26:06,757 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 17:26:06,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:26:06 BoogieIcfgContainer [2021-05-21 17:26:06,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 17:26:06,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 17:26:06,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 17:26:06,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 17:26:06,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 05:26:05" (1/3) ... [2021-05-21 17:26:06,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23eb84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:26:06, skipping insertion in model container [2021-05-21 17:26:06,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:26:06" (2/3) ... [2021-05-21 17:26:06,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23eb84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:26:06, skipping insertion in model container [2021-05-21 17:26:06,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:26:06" (3/3) ... [2021-05-21 17:26:06,765 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2021-05-21 17:26:06,769 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 17:26:06,770 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 17:26:06,770 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 17:26:06,770 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 17:26:06,802 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,802 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,802 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,802 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,802 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,803 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,803 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,803 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,803 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,803 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,803 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,803 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,804 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,804 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,804 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,804 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,804 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,804 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,804 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,805 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,806 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,806 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,806 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,806 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,806 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,806 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,806 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,806 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,807 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,807 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,808 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,808 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,808 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,808 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,808 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,808 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,808 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,809 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,809 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,809 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,811 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,811 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,811 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,811 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,816 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,816 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,817 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,817 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,819 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,819 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:26:06,824 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 17:26:06,843 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-05-21 17:26:06,859 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 17:26:06,859 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 17:26:06,859 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 17:26:06,859 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 17:26:06,860 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 17:26:06,860 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 17:26:06,860 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 17:26:06,860 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 17:26:06,869 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 110 places, 99 transitions, 218 flow [2021-05-21 17:26:12,195 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 51816 states, 51814 states have (on average 4.3685876404060675) internal successors, (226354), 51815 states have internal predecessors, (226354), 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) [2021-05-21 17:26:12,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 51816 states, 51814 states have (on average 4.3685876404060675) internal successors, (226354), 51815 states have internal predecessors, (226354), 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) [2021-05-21 17:26:12,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-21 17:26:12,396 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:26:12,396 INFO L521 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] [2021-05-21 17:26:12,397 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:26:12,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:26:12,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1244979450, now seen corresponding path program 1 times [2021-05-21 17:26:12,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:26:12,409 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594787113] [2021-05-21 17:26:12,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:26:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:26:12,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:26:12,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:26:12,928 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594787113] [2021-05-21 17:26:12,928 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594787113] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:26:12,928 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:26:12,928 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:26:12,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995419829] [2021-05-21 17:26:12,932 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:26:12,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:26:12,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:26:12,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:26:13,093 INFO L87 Difference]: Start difference. First operand has 51816 states, 51814 states have (on average 4.3685876404060675) internal successors, (226354), 51815 states have internal predecessors, (226354), 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) [2021-05-21 17:26:14,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:26:14,388 INFO L93 Difference]: Finished difference Result 69204 states and 296446 transitions. [2021-05-21 17:26:14,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:26:14,389 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 [2021-05-21 17:26:14,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:26:14,600 INFO L225 Difference]: With dead ends: 69204 [2021-05-21 17:26:14,601 INFO L226 Difference]: Without dead ends: 24096 [2021-05-21 17:26:14,602 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 266.4ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-05-21 17:26:14,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24096 states. [2021-05-21 17:26:15,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24096 to 24096. [2021-05-21 17:26:15,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24096 states, 24095 states have (on average 4.189831915335132) internal successors, (100954), 24095 states have internal predecessors, (100954), 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) [2021-05-21 17:26:16,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24096 states to 24096 states and 100954 transitions. [2021-05-21 17:26:16,228 INFO L78 Accepts]: Start accepts. Automaton has 24096 states and 100954 transitions. Word has length 57 [2021-05-21 17:26:16,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:26:16,229 INFO L482 AbstractCegarLoop]: Abstraction has 24096 states and 100954 transitions. [2021-05-21 17:26:16,230 INFO L483 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) [2021-05-21 17:26:16,230 INFO L276 IsEmpty]: Start isEmpty. Operand 24096 states and 100954 transitions. [2021-05-21 17:26:16,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-21 17:26:16,274 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:26:16,275 INFO L521 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] [2021-05-21 17:26:16,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 17:26:16,275 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:26:16,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:26:16,276 INFO L82 PathProgramCache]: Analyzing trace with hash -530234009, now seen corresponding path program 1 times [2021-05-21 17:26:16,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:26:16,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274558146] [2021-05-21 17:26:16,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:26:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:26:16,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:26:16,472 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:26:16,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274558146] [2021-05-21 17:26:16,472 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274558146] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:26:16,472 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:26:16,472 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:26:16,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119497699] [2021-05-21 17:26:16,474 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:26:16,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:26:16,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:26:16,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:26:16,475 INFO L87 Difference]: Start difference. First operand 24096 states and 100954 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) [2021-05-21 17:26:17,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:26:17,070 INFO L93 Difference]: Finished difference Result 31802 states and 133015 transitions. [2021-05-21 17:26:17,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:26:17,070 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 [2021-05-21 17:26:17,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:26:17,203 INFO L225 Difference]: With dead ends: 31802 [2021-05-21 17:26:17,204 INFO L226 Difference]: Without dead ends: 26042 [2021-05-21 17:26:17,204 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 261.1ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:26:17,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26042 states. [2021-05-21 17:26:18,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26042 to 26042. [2021-05-21 17:26:18,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26042 states, 26041 states have (on average 4.193195345800852) internal successors, (109195), 26041 states have internal predecessors, (109195), 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) [2021-05-21 17:26:18,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26042 states to 26042 states and 109195 transitions. [2021-05-21 17:26:18,762 INFO L78 Accepts]: Start accepts. Automaton has 26042 states and 109195 transitions. Word has length 59 [2021-05-21 17:26:18,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:26:18,763 INFO L482 AbstractCegarLoop]: Abstraction has 26042 states and 109195 transitions. [2021-05-21 17:26:18,763 INFO L483 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) [2021-05-21 17:26:18,763 INFO L276 IsEmpty]: Start isEmpty. Operand 26042 states and 109195 transitions. [2021-05-21 17:26:18,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-05-21 17:26:18,824 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:26:18,824 INFO L521 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] [2021-05-21 17:26:18,824 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 17:26:18,825 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:26:18,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:26:18,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1430277990, now seen corresponding path program 1 times [2021-05-21 17:26:18,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:26:18,832 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599470381] [2021-05-21 17:26:18,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:26:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:26:18,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:26:18,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:26:18,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599470381] [2021-05-21 17:26:18,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599470381] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:26:18,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:26:18,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:26:18,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736196715] [2021-05-21 17:26:18,972 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:26:18,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:26:18,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:26:18,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:26:18,973 INFO L87 Difference]: Start difference. First operand 26042 states and 109195 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) [2021-05-21 17:26:19,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:26:19,470 INFO L93 Difference]: Finished difference Result 28730 states and 119619 transitions. [2021-05-21 17:26:19,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:26:19,471 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 [2021-05-21 17:26:19,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:26:19,624 INFO L225 Difference]: With dead ends: 28730 [2021-05-21 17:26:19,624 INFO L226 Difference]: Without dead ends: 24026 [2021-05-21 17:26:19,624 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 108.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-05-21 17:26:19,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24026 states. [2021-05-21 17:26:20,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24026 to 23586. [2021-05-21 17:26:20,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23586 states, 23585 states have (on average 4.1687937248251) internal successors, (98321), 23585 states have internal predecessors, (98321), 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) [2021-05-21 17:26:20,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23586 states to 23586 states and 98321 transitions. [2021-05-21 17:26:20,697 INFO L78 Accepts]: Start accepts. Automaton has 23586 states and 98321 transitions. Word has length 60 [2021-05-21 17:26:20,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:26:20,698 INFO L482 AbstractCegarLoop]: Abstraction has 23586 states and 98321 transitions. [2021-05-21 17:26:20,698 INFO L483 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) [2021-05-21 17:26:20,698 INFO L276 IsEmpty]: Start isEmpty. Operand 23586 states and 98321 transitions. [2021-05-21 17:26:20,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-05-21 17:26:20,746 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:26:20,746 INFO L521 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] [2021-05-21 17:26:20,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 17:26:20,747 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:26:20,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:26:20,748 INFO L82 PathProgramCache]: Analyzing trace with hash 567703026, now seen corresponding path program 1 times [2021-05-21 17:26:20,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:26:20,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473432625] [2021-05-21 17:26:20,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:26:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:26:20,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:26:20,908 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:26:20,908 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473432625] [2021-05-21 17:26:20,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473432625] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:26:20,912 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:26:20,912 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 17:26:20,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209352112] [2021-05-21 17:26:20,912 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 17:26:20,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:26:20,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 17:26:20,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-21 17:26:20,913 INFO L87 Difference]: Start difference. First operand 23586 states and 98321 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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) [2021-05-21 17:26:21,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:26:21,282 INFO L93 Difference]: Finished difference Result 33086 states and 136696 transitions. [2021-05-21 17:26:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 17:26:21,284 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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 61 [2021-05-21 17:26:21,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:26:21,342 INFO L225 Difference]: With dead ends: 33086 [2021-05-21 17:26:21,342 INFO L226 Difference]: Without dead ends: 16286 [2021-05-21 17:26:21,343 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 158.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:26:21,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16286 states. [2021-05-21 17:26:22,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16286 to 16286. [2021-05-21 17:26:22,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16286 states, 16285 states have (on average 4.058704329137242) internal successors, (66096), 16285 states have internal predecessors, (66096), 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) [2021-05-21 17:26:22,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16286 states to 16286 states and 66096 transitions. [2021-05-21 17:26:22,095 INFO L78 Accepts]: Start accepts. Automaton has 16286 states and 66096 transitions. Word has length 61 [2021-05-21 17:26:22,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:26:22,097 INFO L482 AbstractCegarLoop]: Abstraction has 16286 states and 66096 transitions. [2021-05-21 17:26:22,097 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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) [2021-05-21 17:26:22,097 INFO L276 IsEmpty]: Start isEmpty. Operand 16286 states and 66096 transitions. [2021-05-21 17:26:22,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-05-21 17:26:22,128 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:26:22,128 INFO L521 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] [2021-05-21 17:26:22,128 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 17:26:22,128 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:26:22,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:26:22,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1703198279, now seen corresponding path program 1 times [2021-05-21 17:26:22,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:26:22,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267050590] [2021-05-21 17:26:22,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:26:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:26:22,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:26:22,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:26:22,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267050590] [2021-05-21 17:26:22,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267050590] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:26:22,296 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:26:22,296 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 17:26:22,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374884647] [2021-05-21 17:26:22,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 17:26:22,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:26:22,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 17:26:22,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-21 17:26:22,298 INFO L87 Difference]: Start difference. First operand 16286 states and 66096 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 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) [2021-05-21 17:26:22,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:26:22,565 INFO L93 Difference]: Finished difference Result 22606 states and 91492 transitions. [2021-05-21 17:26:22,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:26:22,566 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 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 [2021-05-21 17:26:22,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:26:22,606 INFO L225 Difference]: With dead ends: 22606 [2021-05-21 17:26:22,606 INFO L226 Difference]: Without dead ends: 11161 [2021-05-21 17:26:22,607 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 148.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:26:22,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11161 states. [2021-05-21 17:26:23,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11161 to 11161. [2021-05-21 17:26:23,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11161 states, 11160 states have (on average 4.009498207885304) internal successors, (44746), 11160 states have internal predecessors, (44746), 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) [2021-05-21 17:26:23,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11161 states to 11161 states and 44746 transitions. [2021-05-21 17:26:23,154 INFO L78 Accepts]: Start accepts. Automaton has 11161 states and 44746 transitions. Word has length 63 [2021-05-21 17:26:23,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:26:23,154 INFO L482 AbstractCegarLoop]: Abstraction has 11161 states and 44746 transitions. [2021-05-21 17:26:23,154 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 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) [2021-05-21 17:26:23,154 INFO L276 IsEmpty]: Start isEmpty. Operand 11161 states and 44746 transitions. [2021-05-21 17:26:23,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-05-21 17:26:23,178 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:26:23,178 INFO L521 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] [2021-05-21 17:26:23,178 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 17:26:23,178 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:26:23,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:26:23,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1538860148, now seen corresponding path program 1 times [2021-05-21 17:26:23,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:26:23,179 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538007439] [2021-05-21 17:26:23,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:26:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:26:23,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:26:23,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:26:23,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538007439] [2021-05-21 17:26:23,263 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538007439] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:26:23,263 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:26:23,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:26:23,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697252320] [2021-05-21 17:26:23,264 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:26:23,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:26:23,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:26:23,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:26:23,265 INFO L87 Difference]: Start difference. First operand 11161 states and 44746 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) [2021-05-21 17:26:23,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:26:23,452 INFO L93 Difference]: Finished difference Result 14913 states and 59378 transitions. [2021-05-21 17:26:23,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:26:23,453 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 [2021-05-21 17:26:23,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:26:23,485 INFO L225 Difference]: With dead ends: 14913 [2021-05-21 17:26:23,485 INFO L226 Difference]: Without dead ends: 10817 [2021-05-21 17:26:23,485 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 83.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:26:23,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10817 states. [2021-05-21 17:26:23,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10817 to 10817. [2021-05-21 17:26:23,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10817 states, 10816 states have (on average 3.9927884615384617) internal successors, (43186), 10816 states have internal predecessors, (43186), 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) [2021-05-21 17:26:23,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10817 states to 10817 states and 43186 transitions. [2021-05-21 17:26:23,760 INFO L78 Accepts]: Start accepts. Automaton has 10817 states and 43186 transitions. Word has length 65 [2021-05-21 17:26:23,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:26:23,761 INFO L482 AbstractCegarLoop]: Abstraction has 10817 states and 43186 transitions. [2021-05-21 17:26:23,761 INFO L483 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) [2021-05-21 17:26:23,761 INFO L276 IsEmpty]: Start isEmpty. Operand 10817 states and 43186 transitions. [2021-05-21 17:26:23,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-05-21 17:26:23,780 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:26:23,780 INFO L521 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] [2021-05-21 17:26:23,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 17:26:23,780 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:26:23,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:26:23,780 INFO L82 PathProgramCache]: Analyzing trace with hash -190830206, now seen corresponding path program 1 times [2021-05-21 17:26:23,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:26:23,781 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219424115] [2021-05-21 17:26:23,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:26:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:26:23,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:26:23,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:26:23,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219424115] [2021-05-21 17:26:23,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219424115] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:26:23,862 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:26:23,862 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:26:23,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475810733] [2021-05-21 17:26:23,863 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:26:23,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:26:23,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:26:23,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:26:23,864 INFO L87 Difference]: Start difference. First operand 10817 states and 43186 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) [2021-05-21 17:26:24,135 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-05-21 17:26:24,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:26:24,198 INFO L93 Difference]: Finished difference Result 13241 states and 52158 transitions. [2021-05-21 17:26:24,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:26:24,198 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 [2021-05-21 17:26:24,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:26:24,223 INFO L225 Difference]: With dead ends: 13241 [2021-05-21 17:26:24,224 INFO L226 Difference]: Without dead ends: 9401 [2021-05-21 17:26:24,224 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 249.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-05-21 17:26:24,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9401 states. [2021-05-21 17:26:24,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9401 to 9401. [2021-05-21 17:26:24,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9401 states, 9400 states have (on average 3.923191489361702) internal successors, (36878), 9400 states have internal predecessors, (36878), 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) [2021-05-21 17:26:24,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9401 states to 9401 states and 36878 transitions. [2021-05-21 17:26:24,454 INFO L78 Accepts]: Start accepts. Automaton has 9401 states and 36878 transitions. Word has length 66 [2021-05-21 17:26:24,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:26:24,454 INFO L482 AbstractCegarLoop]: Abstraction has 9401 states and 36878 transitions. [2021-05-21 17:26:24,454 INFO L483 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) [2021-05-21 17:26:24,455 INFO L276 IsEmpty]: Start isEmpty. Operand 9401 states and 36878 transitions. [2021-05-21 17:26:24,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-05-21 17:26:24,470 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:26:24,470 INFO L521 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] [2021-05-21 17:26:24,470 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 17:26:24,470 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:26:24,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:26:24,471 INFO L82 PathProgramCache]: Analyzing trace with hash 92983515, now seen corresponding path program 1 times [2021-05-21 17:26:24,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:26:24,471 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655984691] [2021-05-21 17:26:24,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:26:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:26:24,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:26:24,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:26:24,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655984691] [2021-05-21 17:26:24,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655984691] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:26:24,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:26:24,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 17:26:24,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101573227] [2021-05-21 17:26:24,590 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 17:26:24,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:26:24,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 17:26:24,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-21 17:26:24,590 INFO L87 Difference]: Start difference. First operand 9401 states and 36878 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) [2021-05-21 17:26:24,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:26:24,784 INFO L93 Difference]: Finished difference Result 9734 states and 37430 transitions. [2021-05-21 17:26:24,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 17:26:24,785 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 [2021-05-21 17:26:24,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:26:24,804 INFO L225 Difference]: With dead ends: 9734 [2021-05-21 17:26:24,804 INFO L226 Difference]: Without dead ends: 6854 [2021-05-21 17:26:24,804 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 112.9ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:26:24,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6854 states. [2021-05-21 17:26:24,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6854 to 6854. [2021-05-21 17:26:24,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6854 states, 6853 states have (on average 3.7970232015175833) internal successors, (26021), 6853 states have internal predecessors, (26021), 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) [2021-05-21 17:26:24,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6854 states to 6854 states and 26021 transitions. [2021-05-21 17:26:24,958 INFO L78 Accepts]: Start accepts. Automaton has 6854 states and 26021 transitions. Word has length 67 [2021-05-21 17:26:24,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:26:24,958 INFO L482 AbstractCegarLoop]: Abstraction has 6854 states and 26021 transitions. [2021-05-21 17:26:24,958 INFO L483 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) [2021-05-21 17:26:24,959 INFO L276 IsEmpty]: Start isEmpty. Operand 6854 states and 26021 transitions. [2021-05-21 17:26:24,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-05-21 17:26:24,968 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:26:24,968 INFO L521 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] [2021-05-21 17:26:24,969 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 17:26:24,969 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:26:24,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:26:24,969 INFO L82 PathProgramCache]: Analyzing trace with hash 319759386, now seen corresponding path program 1 times [2021-05-21 17:26:24,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:26:24,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233031575] [2021-05-21 17:26:24,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:26:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:26:25,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:26:25,238 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:26:25,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233031575] [2021-05-21 17:26:25,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233031575] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:26:25,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:26:25,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-21 17:26:25,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297120805] [2021-05-21 17:26:25,242 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-21 17:26:25,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:26:25,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-21 17:26:25,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-05-21 17:26:25,243 INFO L87 Difference]: Start difference. First operand 6854 states and 26021 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) [2021-05-21 17:26:25,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:26:25,474 INFO L93 Difference]: Finished difference Result 5936 states and 22160 transitions. [2021-05-21 17:26:25,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-21 17:26:25,475 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 [2021-05-21 17:26:25,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:26:25,486 INFO L225 Difference]: With dead ends: 5936 [2021-05-21 17:26:25,487 INFO L226 Difference]: Without dead ends: 4532 [2021-05-21 17:26:25,487 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 151.7ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-05-21 17:26:25,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4532 states. [2021-05-21 17:26:25,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4532 to 4532. [2021-05-21 17:26:25,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4532 states, 4531 states have (on average 3.693003751931141) internal successors, (16733), 4531 states have internal predecessors, (16733), 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) [2021-05-21 17:26:25,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 16733 transitions. [2021-05-21 17:26:25,593 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 16733 transitions. Word has length 69 [2021-05-21 17:26:25,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:26:25,593 INFO L482 AbstractCegarLoop]: Abstraction has 4532 states and 16733 transitions. [2021-05-21 17:26:25,593 INFO L483 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) [2021-05-21 17:26:25,594 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 16733 transitions. [2021-05-21 17:26:25,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-05-21 17:26:25,602 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:26:25,602 INFO L521 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] [2021-05-21 17:26:25,602 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-21 17:26:25,602 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:26:25,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:26:25,603 INFO L82 PathProgramCache]: Analyzing trace with hash -510658629, now seen corresponding path program 1 times [2021-05-21 17:26:25,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:26:25,603 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762298588] [2021-05-21 17:26:25,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:26:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:26:25,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:26:25,694 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:26:25,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762298588] [2021-05-21 17:26:25,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762298588] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:26:25,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:26:25,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:26:25,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021761202] [2021-05-21 17:26:25,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:26:25,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:26:25,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:26:25,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:26:25,696 INFO L87 Difference]: Start difference. First operand 4532 states and 16733 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) [2021-05-21 17:26:25,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:26:25,839 INFO L93 Difference]: Finished difference Result 6605 states and 24478 transitions. [2021-05-21 17:26:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-21 17:26:25,839 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 [2021-05-21 17:26:25,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:26:25,850 INFO L225 Difference]: With dead ends: 6605 [2021-05-21 17:26:25,851 INFO L226 Difference]: Without dead ends: 4116 [2021-05-21 17:26:25,851 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 120.6ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:26:25,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4116 states. [2021-05-21 17:26:25,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4116 to 3540. [2021-05-21 17:26:25,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3540 states, 3539 states have (on average 3.631816897428652) internal successors, (12853), 3539 states have internal predecessors, (12853), 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) [2021-05-21 17:26:25,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 12853 transitions. [2021-05-21 17:26:25,936 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 12853 transitions. Word has length 71 [2021-05-21 17:26:25,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:26:25,936 INFO L482 AbstractCegarLoop]: Abstraction has 3540 states and 12853 transitions. [2021-05-21 17:26:25,936 INFO L483 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) [2021-05-21 17:26:25,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 12853 transitions. [2021-05-21 17:26:25,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-05-21 17:26:25,942 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:26:25,942 INFO L521 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] [2021-05-21 17:26:25,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-21 17:26:25,942 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:26:25,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:26:25,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1806523195, now seen corresponding path program 2 times [2021-05-21 17:26:25,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:26:25,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961880275] [2021-05-21 17:26:25,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:26:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:26:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:26:26,030 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:26:26,030 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961880275] [2021-05-21 17:26:26,030 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961880275] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:26:26,030 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:26:26,030 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:26:26,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406219312] [2021-05-21 17:26:26,031 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:26:26,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:26:26,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:26:26,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:26:26,032 INFO L87 Difference]: Start difference. First operand 3540 states and 12853 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) [2021-05-21 17:26:26,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:26:26,141 INFO L93 Difference]: Finished difference Result 3378 states and 12259 transitions. [2021-05-21 17:26:26,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-21 17:26:26,141 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 [2021-05-21 17:26:26,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:26:26,141 INFO L225 Difference]: With dead ends: 3378 [2021-05-21 17:26:26,141 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 17:26:26,142 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 111.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:26:26,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 17:26:26,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 17:26:26,142 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) [2021-05-21 17:26:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 17:26:26,142 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2021-05-21 17:26:26,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:26:26,143 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 17:26:26,143 INFO L483 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) [2021-05-21 17:26:26,143 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 17:26:26,143 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 17:26:26,143 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-21 17:26:26,145 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 17:26:26,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 05:26:26 BasicIcfg [2021-05-21 17:26:26,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 17:26:26,148 INFO L168 Benchmark]: Toolchain (without parser) took 20477.20 ms. Allocated memory was 341.8 MB in the beginning and 10.4 GB in the end (delta: 10.0 GB). Free memory was 304.4 MB in the beginning and 8.9 GB in the end (delta: -8.5 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.0 GB. [2021-05-21 17:26:26,148 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 341.8 MB. Free memory was 322.7 MB in the beginning and 322.6 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 17:26:26,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 509.29 ms. Allocated memory is still 341.8 MB. Free memory was 304.2 MB in the beginning and 303.5 MB in the end (delta: 708.5 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-05-21 17:26:26,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.16 ms. Allocated memory is still 341.8 MB. Free memory was 303.5 MB in the beginning and 301.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:26:26,149 INFO L168 Benchmark]: Boogie Preprocessor took 25.70 ms. Allocated memory is still 341.8 MB. Free memory was 301.4 MB in the beginning and 300.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:26:26,149 INFO L168 Benchmark]: RCFGBuilder took 512.71 ms. Allocated memory is still 341.8 MB. Free memory was 300.3 MB in the beginning and 272.0 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-05-21 17:26:26,149 INFO L168 Benchmark]: TraceAbstraction took 19386.94 ms. Allocated memory was 341.8 MB in the beginning and 10.4 GB in the end (delta: 10.0 GB). Free memory was 272.0 MB in the beginning and 8.9 GB in the end (delta: -8.6 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.0 GB. [2021-05-21 17:26:26,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 341.8 MB. Free memory was 322.7 MB in the beginning and 322.6 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 509.29 ms. Allocated memory is still 341.8 MB. Free memory was 304.2 MB in the beginning and 303.5 MB in the end (delta: 708.5 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 34.16 ms. Allocated memory is still 341.8 MB. Free memory was 303.5 MB in the beginning and 301.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.70 ms. Allocated memory is still 341.8 MB. Free memory was 301.4 MB in the beginning and 300.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 512.71 ms. Allocated memory is still 341.8 MB. Free memory was 300.3 MB in the beginning and 272.0 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 19386.94 ms. Allocated memory was 341.8 MB in the beginning and 10.4 GB in the end (delta: 10.0 GB). Free memory was 272.0 MB in the beginning and 8.9 GB in the end (delta: -8.6 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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. VerificationResult: SAFE, OverallTime: 19286.5ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 464.0ms, AutomataDifference: 5098.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5335.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1374 SDtfs, 2492 SDslu, 4877 SDs, 0 SdLazy, 592 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 449.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1771.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51816occurred 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: 6393.9ms AutomataMinimizationTime, 11 MinimizatonAttempts, 1016 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 42.1ms SsaConstructionTime, 203.5ms SatisfiabilityAnalysisTime, 1545.3ms InterpolantComputationTime, 709 NumberOfCodeBlocks, 709 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 698 ConstructedInterpolants, 0 QuantifiedInterpolants, 3356 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! Received shutdown request...