/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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:07:06,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:07:06,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:07:06,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 10:07:06,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:07:06,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:07:06,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:07:06,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:07:06,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:07:06,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:07:06,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:07:06,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:07:06,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:07:06,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:07:06,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:07:06,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:07:06,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 10:07:06,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:07:06,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:07:06,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:07:06,524 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-Separate.epf [2021-06-05 10:07:06,551 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:07:06,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:07:06,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:07:06,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:07:06,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:07:06,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:07:06,553 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:07:06,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:07:06,554 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:07:06,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:07:06,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:07:06,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:07:06,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:07:06,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:07:06,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:07:06,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:07:06,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:07:06,555 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:07:06,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:07:06,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:07:06,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:07:06,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:07:06,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:07:06,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:07:06,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:07:06,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:07:06,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:07:06,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:07:06,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:07:06,556 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:07:06,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:07:06,556 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:07:06,556 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:07:06,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:07:06,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:07:06,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:07:06,812 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:07:06,812 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:07:06,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2021-06-05 10:07:06,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05bbd0137/86fbec304bc940a897daef4d40d976dc/FLAG3afb766c2 [2021-06-05 10:07:07,270 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:07:07,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2021-06-05 10:07:07,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05bbd0137/86fbec304bc940a897daef4d40d976dc/FLAG3afb766c2 [2021-06-05 10:07:07,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05bbd0137/86fbec304bc940a897daef4d40d976dc [2021-06-05 10:07:07,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:07:07,291 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:07:07,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:07:07,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:07:07,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:07:07,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:07:07" (1/1) ... [2021-06-05 10:07:07,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ee97b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:07, skipping insertion in model container [2021-06-05 10:07:07,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:07:07" (1/1) ... [2021-06-05 10:07:07,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:07:07,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:07:07,412 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/safe015_tso.oepc.i[950,963] [2021-06-05 10:07:07,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:07:07,517 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:07:07,524 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/safe015_tso.oepc.i[950,963] [2021-06-05 10:07:07,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:07:07,603 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:07:07,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:07 WrapperNode [2021-06-05 10:07:07,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:07:07,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:07:07,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:07:07,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:07:07,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:07" (1/1) ... [2021-06-05 10:07:07,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:07" (1/1) ... [2021-06-05 10:07:07,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:07:07,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:07:07,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:07:07,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:07:07,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:07" (1/1) ... [2021-06-05 10:07:07,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:07" (1/1) ... [2021-06-05 10:07:07,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:07" (1/1) ... [2021-06-05 10:07:07,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:07" (1/1) ... [2021-06-05 10:07:07,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:07" (1/1) ... [2021-06-05 10:07:07,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:07" (1/1) ... [2021-06-05 10:07:07,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:07" (1/1) ... [2021-06-05 10:07:07,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:07:07,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:07:07,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:07:07,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:07:07,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:07" (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 [2021-06-05 10:07:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:07:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:07:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:07:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:07:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:07:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:07:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:07:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:07:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:07:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:07:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:07:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:07:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:07:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:07:07,795 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:07:08,118 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:07:08,118 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:07:08,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:07:08 BoogieIcfgContainer [2021-06-05 10:07:08,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:07:08,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:07:08,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:07:08,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:07:08,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:07:07" (1/3) ... [2021-06-05 10:07:08,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb58d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:07:08, skipping insertion in model container [2021-06-05 10:07:08,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:07:07" (2/3) ... [2021-06-05 10:07:08,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb58d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:07:08, skipping insertion in model container [2021-06-05 10:07:08,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:07:08" (3/3) ... [2021-06-05 10:07:08,126 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_tso.oepc.i [2021-06-05 10:07:08,132 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:07:08,132 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:07:08,132 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:07:08,133 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:07:08,159 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,160 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,160 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,160 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,160 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,163 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,163 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,170 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,171 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,171 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,172 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,174 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,174 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,174 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,174 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,179 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,179 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:07:08,182 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:07:08,198 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 10:07:08,218 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:07:08,218 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:07:08,218 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:07:08,218 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:07:08,218 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:07:08,218 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:07:08,218 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:07:08,219 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:07:08,229 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 83 transitions, 181 flow [2021-06-05 10:07:08,631 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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) [2021-06-05 10:07:08,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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) [2021-06-05 10:07:08,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 10:07:08,709 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:08,710 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] [2021-06-05 10:07:08,710 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:08,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:08,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1572123417, now seen corresponding path program 1 times [2021-06-05 10:07:08,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:08,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830799141] [2021-06-05 10:07:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:09,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:09,030 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:09,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830799141] [2021-06-05 10:07:09,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830799141] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:09,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:09,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:07:09,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395819443] [2021-06-05 10:07:09,034 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:07:09,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:09,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:07:09,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:07:09,058 INFO L87 Difference]: Start difference. First operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-06-05 10:07:09,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:09,516 INFO L93 Difference]: Finished difference Result 21088 states and 72805 transitions. [2021-06-05 10:07:09,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:07:09,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2021-06-05 10:07:09,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:09,587 INFO L225 Difference]: With dead ends: 21088 [2021-06-05 10:07:09,588 INFO L226 Difference]: Without dead ends: 7140 [2021-06-05 10:07:09,589 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:07:09,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7140 states. [2021-06-05 10:07:09,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7140 to 6006. [2021-06-05 10:07:09,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6006 states, 6005 states have (on average 3.33488759367194) internal successors, (20026), 6005 states have internal predecessors, (20026), 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) [2021-06-05 10:07:09,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6006 states to 6006 states and 20026 transitions. [2021-06-05 10:07:09,894 INFO L78 Accepts]: Start accepts. Automaton has 6006 states and 20026 transitions. Word has length 48 [2021-06-05 10:07:09,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:09,897 INFO L482 AbstractCegarLoop]: Abstraction has 6006 states and 20026 transitions. [2021-06-05 10:07:09,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-06-05 10:07:09,898 INFO L276 IsEmpty]: Start isEmpty. Operand 6006 states and 20026 transitions. [2021-06-05 10:07:09,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-06-05 10:07:09,910 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:09,911 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] [2021-06-05 10:07:09,911 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:07:09,911 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:09,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:09,913 INFO L82 PathProgramCache]: Analyzing trace with hash -396116582, now seen corresponding path program 1 times [2021-06-05 10:07:09,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:09,914 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358341856] [2021-06-05 10:07:09,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:10,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:10,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:10,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358341856] [2021-06-05 10:07:10,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358341856] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:10,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:10,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:07:10,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171940020] [2021-06-05 10:07:10,085 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:07:10,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:10,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:07:10,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:07:10,086 INFO L87 Difference]: Start difference. First operand 6006 states and 20026 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:10,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:10,397 INFO L93 Difference]: Finished difference Result 8410 states and 27696 transitions. [2021-06-05 10:07:10,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:07:10,397 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-06-05 10:07:10,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:10,426 INFO L225 Difference]: With dead ends: 8410 [2021-06-05 10:07:10,426 INFO L226 Difference]: Without dead ends: 6474 [2021-06-05 10:07:10,427 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 165.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:07:10,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6474 states. [2021-06-05 10:07:10,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6474 to 5338. [2021-06-05 10:07:10,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5337 states have (on average 3.3041034288926365) internal successors, (17634), 5337 states have internal predecessors, (17634), 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) [2021-06-05 10:07:10,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 17634 transitions. [2021-06-05 10:07:10,596 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 17634 transitions. Word has length 50 [2021-06-05 10:07:10,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:10,596 INFO L482 AbstractCegarLoop]: Abstraction has 5338 states and 17634 transitions. [2021-06-05 10:07:10,596 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:10,596 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 17634 transitions. [2021-06-05 10:07:10,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 10:07:10,607 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:10,607 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] [2021-06-05 10:07:10,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:07:10,607 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:10,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:10,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1823781980, now seen corresponding path program 1 times [2021-06-05 10:07:10,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:10,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257740047] [2021-06-05 10:07:10,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:10,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:10,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257740047] [2021-06-05 10:07:10,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257740047] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:10,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:10,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:07:10,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334996421] [2021-06-05 10:07:10,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:07:10,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:10,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:07:10,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:07:10,726 INFO L87 Difference]: Start difference. First operand 5338 states and 17634 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:10,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:10,839 INFO L93 Difference]: Finished difference Result 5866 states and 19257 transitions. [2021-06-05 10:07:10,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:07:10,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 10:07:10,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:10,867 INFO L225 Difference]: With dead ends: 5866 [2021-06-05 10:07:10,867 INFO L226 Difference]: Without dead ends: 4942 [2021-06-05 10:07:10,867 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 82.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:07:10,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4942 states. [2021-06-05 10:07:11,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4942 to 4551. [2021-06-05 10:07:11,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4551 states, 4550 states have (on average 3.291208791208791) internal successors, (14975), 4550 states have internal predecessors, (14975), 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) [2021-06-05 10:07:11,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4551 states to 4551 states and 14975 transitions. [2021-06-05 10:07:11,032 INFO L78 Accepts]: Start accepts. Automaton has 4551 states and 14975 transitions. Word has length 51 [2021-06-05 10:07:11,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:11,033 INFO L482 AbstractCegarLoop]: Abstraction has 4551 states and 14975 transitions. [2021-06-05 10:07:11,033 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:11,033 INFO L276 IsEmpty]: Start isEmpty. Operand 4551 states and 14975 transitions. [2021-06-05 10:07:11,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 10:07:11,042 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:11,042 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] [2021-06-05 10:07:11,043 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:07:11,043 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:11,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:11,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1772356823, now seen corresponding path program 1 times [2021-06-05 10:07:11,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:11,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157243052] [2021-06-05 10:07:11,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:11,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:11,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:11,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157243052] [2021-06-05 10:07:11,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157243052] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:11,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:11,141 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:07:11,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618153569] [2021-06-05 10:07:11,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:07:11,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:11,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:07:11,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:07:11,142 INFO L87 Difference]: Start difference. First operand 4551 states and 14975 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:11,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:11,315 INFO L93 Difference]: Finished difference Result 5143 states and 16830 transitions. [2021-06-05 10:07:11,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:07:11,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-06-05 10:07:11,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:11,330 INFO L225 Difference]: With dead ends: 5143 [2021-06-05 10:07:11,330 INFO L226 Difference]: Without dead ends: 4443 [2021-06-05 10:07:11,333 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 149.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:07:11,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4443 states. [2021-06-05 10:07:11,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4443 to 4427. [2021-06-05 10:07:11,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4427 states, 4426 states have (on average 3.2790329868956167) internal successors, (14513), 4426 states have internal predecessors, (14513), 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) [2021-06-05 10:07:11,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4427 states to 4427 states and 14513 transitions. [2021-06-05 10:07:11,440 INFO L78 Accepts]: Start accepts. Automaton has 4427 states and 14513 transitions. Word has length 52 [2021-06-05 10:07:11,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:11,442 INFO L482 AbstractCegarLoop]: Abstraction has 4427 states and 14513 transitions. [2021-06-05 10:07:11,442 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:11,442 INFO L276 IsEmpty]: Start isEmpty. Operand 4427 states and 14513 transitions. [2021-06-05 10:07:11,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:07:11,451 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:11,451 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] [2021-06-05 10:07:11,453 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:07:11,454 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:11,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:11,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1730681128, now seen corresponding path program 1 times [2021-06-05 10:07:11,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:11,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720085502] [2021-06-05 10:07:11,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:11,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:11,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:11,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720085502] [2021-06-05 10:07:11,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720085502] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:11,565 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:11,565 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:07:11,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565105493] [2021-06-05 10:07:11,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:07:11,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:11,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:07:11,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:07:11,566 INFO L87 Difference]: Start difference. First operand 4427 states and 14513 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:11,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:11,831 INFO L93 Difference]: Finished difference Result 6233 states and 20189 transitions. [2021-06-05 10:07:11,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:07:11,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 10:07:11,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:11,844 INFO L225 Difference]: With dead ends: 6233 [2021-06-05 10:07:11,844 INFO L226 Difference]: Without dead ends: 5349 [2021-06-05 10:07:11,845 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 202.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:07:11,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5349 states. [2021-06-05 10:07:11,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5349 to 4205. [2021-06-05 10:07:11,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4205 states, 4204 states have (on average 3.2649857278782113) internal successors, (13726), 4204 states have internal predecessors, (13726), 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) [2021-06-05 10:07:11,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4205 states to 4205 states and 13726 transitions. [2021-06-05 10:07:11,946 INFO L78 Accepts]: Start accepts. Automaton has 4205 states and 13726 transitions. Word has length 54 [2021-06-05 10:07:11,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:11,946 INFO L482 AbstractCegarLoop]: Abstraction has 4205 states and 13726 transitions. [2021-06-05 10:07:11,946 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:11,946 INFO L276 IsEmpty]: Start isEmpty. Operand 4205 states and 13726 transitions. [2021-06-05 10:07:11,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:07:11,954 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:11,954 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] [2021-06-05 10:07:11,954 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:07:11,955 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:11,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:11,955 INFO L82 PathProgramCache]: Analyzing trace with hash 245526365, now seen corresponding path program 1 times [2021-06-05 10:07:11,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:11,955 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647106300] [2021-06-05 10:07:11,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:12,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:12,033 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:12,033 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647106300] [2021-06-05 10:07:12,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647106300] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:12,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:12,034 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:07:12,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376862864] [2021-06-05 10:07:12,034 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:07:12,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:12,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:07:12,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:07:12,035 INFO L87 Difference]: Start difference. First operand 4205 states and 13726 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:12,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:12,134 INFO L93 Difference]: Finished difference Result 7461 states and 24155 transitions. [2021-06-05 10:07:12,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:07:12,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 10:07:12,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:12,147 INFO L225 Difference]: With dead ends: 7461 [2021-06-05 10:07:12,147 INFO L226 Difference]: Without dead ends: 5277 [2021-06-05 10:07:12,149 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 68.3ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-05 10:07:12,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5277 states. [2021-06-05 10:07:12,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5277 to 4205. [2021-06-05 10:07:12,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4205 states, 4204 states have (on average 3.2516650808753567) internal successors, (13670), 4204 states have internal predecessors, (13670), 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) [2021-06-05 10:07:12,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4205 states to 4205 states and 13670 transitions. [2021-06-05 10:07:12,352 INFO L78 Accepts]: Start accepts. Automaton has 4205 states and 13670 transitions. Word has length 54 [2021-06-05 10:07:12,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:12,353 INFO L482 AbstractCegarLoop]: Abstraction has 4205 states and 13670 transitions. [2021-06-05 10:07:12,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:12,353 INFO L276 IsEmpty]: Start isEmpty. Operand 4205 states and 13670 transitions. [2021-06-05 10:07:12,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:07:12,362 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:12,362 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] [2021-06-05 10:07:12,362 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:07:12,363 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:12,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:12,363 INFO L82 PathProgramCache]: Analyzing trace with hash 192553753, now seen corresponding path program 2 times [2021-06-05 10:07:12,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:12,363 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540480313] [2021-06-05 10:07:12,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:12,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:12,455 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:12,455 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540480313] [2021-06-05 10:07:12,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540480313] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:12,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:12,456 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:07:12,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685217644] [2021-06-05 10:07:12,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:07:12,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:12,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:07:12,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:07:12,457 INFO L87 Difference]: Start difference. First operand 4205 states and 13670 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:12,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:12,630 INFO L93 Difference]: Finished difference Result 7356 states and 23632 transitions. [2021-06-05 10:07:12,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:07:12,631 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 10:07:12,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:12,643 INFO L225 Difference]: With dead ends: 7356 [2021-06-05 10:07:12,644 INFO L226 Difference]: Without dead ends: 5468 [2021-06-05 10:07:12,644 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 139.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:07:12,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5468 states. [2021-06-05 10:07:12,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5468 to 3757. [2021-06-05 10:07:12,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3757 states, 3756 states have (on average 3.198615548455804) internal successors, (12014), 3756 states have internal predecessors, (12014), 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) [2021-06-05 10:07:12,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3757 states to 3757 states and 12014 transitions. [2021-06-05 10:07:12,805 INFO L78 Accepts]: Start accepts. Automaton has 3757 states and 12014 transitions. Word has length 54 [2021-06-05 10:07:12,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:12,805 INFO L482 AbstractCegarLoop]: Abstraction has 3757 states and 12014 transitions. [2021-06-05 10:07:12,805 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:12,805 INFO L276 IsEmpty]: Start isEmpty. Operand 3757 states and 12014 transitions. [2021-06-05 10:07:12,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 10:07:12,812 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:12,812 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] [2021-06-05 10:07:12,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:07:12,812 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:12,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:12,813 INFO L82 PathProgramCache]: Analyzing trace with hash -663113566, now seen corresponding path program 1 times [2021-06-05 10:07:12,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:12,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128626798] [2021-06-05 10:07:12,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:12,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:12,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:12,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128626798] [2021-06-05 10:07:12,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128626798] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:12,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:12,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:07:12,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774100184] [2021-06-05 10:07:12,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:07:12,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:12,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:07:12,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:07:12,875 INFO L87 Difference]: Start difference. First operand 3757 states and 12014 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:12,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:12,966 INFO L93 Difference]: Finished difference Result 4785 states and 15081 transitions. [2021-06-05 10:07:12,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:07:12,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-06-05 10:07:12,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:12,974 INFO L225 Difference]: With dead ends: 4785 [2021-06-05 10:07:12,975 INFO L226 Difference]: Without dead ends: 3413 [2021-06-05 10:07:12,975 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 69.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:07:12,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3413 states. [2021-06-05 10:07:13,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3413 to 3413. [2021-06-05 10:07:13,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 3412 states have (on average 3.138335287221571) internal successors, (10708), 3412 states have internal predecessors, (10708), 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) [2021-06-05 10:07:13,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 10708 transitions. [2021-06-05 10:07:13,035 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 10708 transitions. Word has length 55 [2021-06-05 10:07:13,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:13,035 INFO L482 AbstractCegarLoop]: Abstraction has 3413 states and 10708 transitions. [2021-06-05 10:07:13,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:07:13,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 10708 transitions. [2021-06-05 10:07:13,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 10:07:13,041 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:13,041 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] [2021-06-05 10:07:13,041 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:07:13,042 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:13,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:13,042 INFO L82 PathProgramCache]: Analyzing trace with hash 328653495, now seen corresponding path program 1 times [2021-06-05 10:07:13,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:13,042 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336335465] [2021-06-05 10:07:13,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:13,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:13,100 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:13,100 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336335465] [2021-06-05 10:07:13,100 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336335465] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:13,100 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:13,100 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:07:13,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916455361] [2021-06-05 10:07:13,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:07:13,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:13,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:07:13,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:07:13,101 INFO L87 Difference]: Start difference. First operand 3413 states and 10708 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2021-06-05 10:07:13,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:13,205 INFO L93 Difference]: Finished difference Result 3665 states and 11239 transitions. [2021-06-05 10:07:13,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:07:13,206 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2021-06-05 10:07:13,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:13,211 INFO L225 Difference]: With dead ends: 3665 [2021-06-05 10:07:13,211 INFO L226 Difference]: Without dead ends: 2537 [2021-06-05 10:07:13,211 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 78.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:07:13,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2021-06-05 10:07:13,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 2537. [2021-06-05 10:07:13,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2537 states, 2536 states have (on average 3.0149842271293377) internal successors, (7646), 2536 states have internal predecessors, (7646), 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) [2021-06-05 10:07:13,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 7646 transitions. [2021-06-05 10:07:13,251 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 7646 transitions. Word has length 56 [2021-06-05 10:07:13,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:13,252 INFO L482 AbstractCegarLoop]: Abstraction has 2537 states and 7646 transitions. [2021-06-05 10:07:13,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2021-06-05 10:07:13,252 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 7646 transitions. [2021-06-05 10:07:13,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 10:07:13,256 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:13,256 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] [2021-06-05 10:07:13,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 10:07:13,257 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:13,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:13,257 INFO L82 PathProgramCache]: Analyzing trace with hash -372773896, now seen corresponding path program 1 times [2021-06-05 10:07:13,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:13,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000305306] [2021-06-05 10:07:13,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:13,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:13,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:13,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000305306] [2021-06-05 10:07:13,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000305306] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:13,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:13,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:07:13,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304842915] [2021-06-05 10:07:13,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:07:13,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:13,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:07:13,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:07:13,362 INFO L87 Difference]: Start difference. First operand 2537 states and 7646 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2021-06-05 10:07:13,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:13,480 INFO L93 Difference]: Finished difference Result 2267 states and 6701 transitions. [2021-06-05 10:07:13,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:07:13,480 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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 58 [2021-06-05 10:07:13,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:13,482 INFO L225 Difference]: With dead ends: 2267 [2021-06-05 10:07:13,482 INFO L226 Difference]: Without dead ends: 846 [2021-06-05 10:07:13,482 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 138.6ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:07:13,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2021-06-05 10:07:13,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 846. [2021-06-05 10:07:13,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 845 states have (on average 2.902958579881657) internal successors, (2453), 845 states have internal predecessors, (2453), 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) [2021-06-05 10:07:13,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 2453 transitions. [2021-06-05 10:07:13,493 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 2453 transitions. Word has length 58 [2021-06-05 10:07:13,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:13,494 INFO L482 AbstractCegarLoop]: Abstraction has 846 states and 2453 transitions. [2021-06-05 10:07:13,494 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2021-06-05 10:07:13,494 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 2453 transitions. [2021-06-05 10:07:13,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 10:07:13,495 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:13,495 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] [2021-06-05 10:07:13,495 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 10:07:13,495 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:13,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:13,496 INFO L82 PathProgramCache]: Analyzing trace with hash -625056731, now seen corresponding path program 1 times [2021-06-05 10:07:13,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:13,496 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479637887] [2021-06-05 10:07:13,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:13,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:13,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:13,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479637887] [2021-06-05 10:07:13,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479637887] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:13,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:13,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:07:13,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980276660] [2021-06-05 10:07:13,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:07:13,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:13,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:07:13,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:07:13,567 INFO L87 Difference]: Start difference. First operand 846 states and 2453 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 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) [2021-06-05 10:07:13,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:13,633 INFO L93 Difference]: Finished difference Result 1329 states and 3894 transitions. [2021-06-05 10:07:13,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:07:13,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 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 [2021-06-05 10:07:13,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:13,635 INFO L225 Difference]: With dead ends: 1329 [2021-06-05 10:07:13,635 INFO L226 Difference]: Without dead ends: 804 [2021-06-05 10:07:13,635 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 78.7ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-05 10:07:13,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2021-06-05 10:07:13,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 804. [2021-06-05 10:07:13,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 803 states have (on average 2.8779576587795765) internal successors, (2311), 803 states have internal predecessors, (2311), 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) [2021-06-05 10:07:13,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 2311 transitions. [2021-06-05 10:07:13,647 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 2311 transitions. Word has length 60 [2021-06-05 10:07:13,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:13,647 INFO L482 AbstractCegarLoop]: Abstraction has 804 states and 2311 transitions. [2021-06-05 10:07:13,647 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 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) [2021-06-05 10:07:13,647 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 2311 transitions. [2021-06-05 10:07:13,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 10:07:13,648 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:07:13,648 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] [2021-06-05 10:07:13,648 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 10:07:13,649 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:07:13,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:07:13,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1424861539, now seen corresponding path program 2 times [2021-06-05 10:07:13,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:07:13,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786368704] [2021-06-05 10:07:13,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:07:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:07:13,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:07:13,713 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:07:13,713 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786368704] [2021-06-05 10:07:13,713 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786368704] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:07:13,713 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:07:13,713 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:07:13,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298743000] [2021-06-05 10:07:13,713 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:07:13,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:07:13,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:07:13,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:07:13,714 INFO L87 Difference]: Start difference. First operand 804 states and 2311 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 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) [2021-06-05 10:07:13,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:07:13,765 INFO L93 Difference]: Finished difference Result 750 states and 2149 transitions. [2021-06-05 10:07:13,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 10:07:13,765 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 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 [2021-06-05 10:07:13,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:07:13,765 INFO L225 Difference]: With dead ends: 750 [2021-06-05 10:07:13,765 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:07:13,765 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 66.8ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-05 10:07:13,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:07:13,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:07:13,766 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) [2021-06-05 10:07:13,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:07:13,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2021-06-05 10:07:13,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:07:13,766 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:07:13,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 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) [2021-06-05 10:07:13,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:07:13,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:07:13,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 10:07:13,767 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:07:13,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:07:13 BasicIcfg [2021-06-05 10:07:13,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:07:13,770 INFO L168 Benchmark]: Toolchain (without parser) took 6478.93 ms. Allocated memory was 354.4 MB in the beginning and 1.9 GB in the end (delta: 1.5 GB). Free memory was 316.8 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 346.3 MB. Max. memory is 16.0 GB. [2021-06-05 10:07:13,770 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 354.4 MB. Free memory is still 335.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:07:13,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.28 ms. Allocated memory is still 354.4 MB. Free memory was 316.7 MB in the beginning and 317.2 MB in the end (delta: -469.2 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:07:13,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.65 ms. Allocated memory is still 354.4 MB. Free memory was 317.2 MB in the beginning and 315.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:07:13,770 INFO L168 Benchmark]: Boogie Preprocessor took 26.73 ms. Allocated memory is still 354.4 MB. Free memory was 315.1 MB in the beginning and 314.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:07:13,770 INFO L168 Benchmark]: RCFGBuilder took 439.26 ms. Allocated memory is still 354.4 MB. Free memory was 313.0 MB in the beginning and 288.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:07:13,770 INFO L168 Benchmark]: TraceAbstraction took 5647.75 ms. Allocated memory was 354.4 MB in the beginning and 1.9 GB in the end (delta: 1.5 GB). Free memory was 288.9 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 320.0 MB. Max. memory is 16.0 GB. [2021-06-05 10:07:13,771 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 354.4 MB. Free memory is still 335.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 312.28 ms. Allocated memory is still 354.4 MB. Free memory was 316.7 MB in the beginning and 317.2 MB in the end (delta: -469.2 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 48.65 ms. Allocated memory is still 354.4 MB. Free memory was 317.2 MB in the beginning and 315.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.73 ms. Allocated memory is still 354.4 MB. Free memory was 315.1 MB in the beginning and 314.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 439.26 ms. Allocated memory is still 354.4 MB. Free memory was 313.0 MB in the beginning and 288.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5647.75 ms. Allocated memory was 354.4 MB in the beginning and 1.9 GB in the end (delta: 1.5 GB). Free memory was 288.9 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 320.0 MB. 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 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5550.7ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 153.9ms, AutomataDifference: 2259.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 413.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1322 SDtfs, 1837 SDslu, 4592 SDs, 0 SdLazy, 553 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 431.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1407.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9331occurred in iteration=0, InterpolantAutomatonStates: 121, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1323.4ms AutomataMinimizationTime, 12 MinimizatonAttempts, 6604 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.3ms SsaConstructionTime, 195.8ms SatisfiabilityAnalysisTime, 995.6ms InterpolantComputationTime, 652 NumberOfCodeBlocks, 652 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 640 ConstructedInterpolants, 0 QuantifiedInterpolants, 2968 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...