/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 18:51:42,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 18:51:42,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 18:51:42,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-13 18:51:42,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-13 18:51:42,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-13 18:51:42,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-13 18:51:42,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-13 18:51:42,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-13 18:51:42,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-13 18:51:42,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-13 18:51:42,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-13 18:51:42,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-13 18:51:42,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-13 18:51:42,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-13 18:51:42,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-13 18:51:42,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-13 18:51:42,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 18:51:42,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 18:51:42,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 18:51:42,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-07-13 18:51:42,397 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 18:51:42,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 18:51:42,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 18:51:42,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 18:51:42,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 18:51:42,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 18:51:42,401 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 18:51:42,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 18:51:42,401 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 18:51:42,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 18:51:42,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 18:51:42,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 18:51:42,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 18:51:42,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 18:51:42,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 18:51:42,403 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 18:51:42,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 18:51:42,403 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 18:51:42,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 18:51:42,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 18:51:42,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 18:51:42,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 18:51:42,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 18:51:42,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:51:42,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 18:51:42,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 18:51:42,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 18:51:42,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 18:51:42,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 18:51:42,405 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 18:51:42,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 18:51:42,406 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 18:51:42,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 18:51:42,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 18:51:42,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 18:51:42,740 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 18:51:42,741 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 18:51:42,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2021-07-13 18:51:42,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60f0af945/6baff47a56794898a7e934948b497546/FLAGf9a995fc5 [2021-07-13 18:51:43,334 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 18:51:43,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2021-07-13 18:51:43,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60f0af945/6baff47a56794898a7e934948b497546/FLAGf9a995fc5 [2021-07-13 18:51:43,655 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60f0af945/6baff47a56794898a7e934948b497546 [2021-07-13 18:51:43,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 18:51:43,659 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 18:51:43,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 18:51:43,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 18:51:43,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 18:51:43,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:51:43" (1/1) ... [2021-07-13 18:51:43,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36800578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:51:43, skipping insertion in model container [2021-07-13 18:51:43,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:51:43" (1/1) ... [2021-07-13 18:51:43,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 18:51:43,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 18:51:43,867 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i[950,963] [2021-07-13 18:51:44,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:51:44,050 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 18:51:44,060 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/safe011_tso.oepc.i[950,963] [2021-07-13 18:51:44,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:51:44,133 INFO L208 MainTranslator]: Completed translation [2021-07-13 18:51:44,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:51:44 WrapperNode [2021-07-13 18:51:44,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 18:51:44,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 18:51:44,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 18:51:44,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 18:51:44,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:51:44" (1/1) ... [2021-07-13 18:51:44,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:51:44" (1/1) ... [2021-07-13 18:51:44,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 18:51:44,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 18:51:44,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 18:51:44,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 18:51:44,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:51:44" (1/1) ... [2021-07-13 18:51:44,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:51:44" (1/1) ... [2021-07-13 18:51:44,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:51:44" (1/1) ... [2021-07-13 18:51:44,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:51:44" (1/1) ... [2021-07-13 18:51:44,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:51:44" (1/1) ... [2021-07-13 18:51:44,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:51:44" (1/1) ... [2021-07-13 18:51:44,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:51:44" (1/1) ... [2021-07-13 18:51:44,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 18:51:44,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 18:51:44,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 18:51:44,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 18:51:44,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:51:44" (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 [2021-07-13 18:51:44,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 18:51:44,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-13 18:51:44,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 18:51:44,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 18:51:44,314 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-13 18:51:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-13 18:51:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-13 18:51:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-13 18:51:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-13 18:51:44,317 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-13 18:51:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 18:51:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-13 18:51:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 18:51:44,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 18:51:44,318 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 18:51:44,766 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 18:51:44,766 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-13 18:51:44,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:51:44 BoogieIcfgContainer [2021-07-13 18:51:44,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 18:51:44,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 18:51:44,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 18:51:44,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 18:51:44,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:51:43" (1/3) ... [2021-07-13 18:51:44,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48aa75c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:51:44, skipping insertion in model container [2021-07-13 18:51:44,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:51:44" (2/3) ... [2021-07-13 18:51:44,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48aa75c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:51:44, skipping insertion in model container [2021-07-13 18:51:44,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:51:44" (3/3) ... [2021-07-13 18:51:44,774 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i [2021-07-13 18:51:44,779 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 18:51:44,779 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 18:51:44,779 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 18:51:44,780 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 18:51:44,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,806 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,806 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,807 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,807 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,808 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,808 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,808 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,808 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,808 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,809 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,809 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,810 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,810 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,810 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,810 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,811 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,811 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,814 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,814 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,814 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,814 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,819 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,819 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:51:44,823 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-13 18:51:44,841 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-13 18:51:44,857 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 18:51:44,858 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 18:51:44,858 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 18:51:44,858 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 18:51:44,858 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 18:51:44,858 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 18:51:44,858 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 18:51:44,858 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 18:51:44,869 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 83 transitions, 181 flow [2021-07-13 18:51:45,069 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5558 states, 5557 states have (on average 3.4943314738168074) internal successors, (19418), 5557 states have internal predecessors, (19418), 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) [2021-07-13 18:51:45,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 5558 states, 5557 states have (on average 3.4943314738168074) internal successors, (19418), 5557 states have internal predecessors, (19418), 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) [2021-07-13 18:51:45,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-07-13 18:51:45,131 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:51:45,132 INFO L508 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] [2021-07-13 18:51:45,132 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:51:45,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:51:45,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1134513361, now seen corresponding path program 1 times [2021-07-13 18:51:45,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:51:45,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473917622] [2021-07-13 18:51:45,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:51:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:51:45,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:51:45,574 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:51:45,574 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473917622] [2021-07-13 18:51:45,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473917622] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:51:45,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:51:45,575 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:51:45,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881880263] [2021-07-13 18:51:45,578 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:51:45,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:51:45,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:51:45,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:51:45,639 INFO L87 Difference]: Start difference. First operand has 5558 states, 5557 states have (on average 3.4943314738168074) internal successors, (19418), 5557 states have internal predecessors, (19418), 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) [2021-07-13 18:51:45,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:51:45,920 INFO L93 Difference]: Finished difference Result 6678 states and 22702 transitions. [2021-07-13 18:51:45,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 18:51:45,922 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 [2021-07-13 18:51:45,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:51:45,974 INFO L225 Difference]: With dead ends: 6678 [2021-07-13 18:51:45,974 INFO L226 Difference]: Without dead ends: 4963 [2021-07-13 18:51:45,975 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 140.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:51:46,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4963 states. [2021-07-13 18:51:46,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4963 to 4963. [2021-07-13 18:51:46,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4963 states, 4962 states have (on average 3.4014510278113663) internal successors, (16878), 4962 states have internal predecessors, (16878), 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) [2021-07-13 18:51:46,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4963 states to 4963 states and 16878 transitions. [2021-07-13 18:51:46,283 INFO L78 Accepts]: Start accepts. Automaton has 4963 states and 16878 transitions. Word has length 48 [2021-07-13 18:51:46,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:51:46,284 INFO L482 AbstractCegarLoop]: Abstraction has 4963 states and 16878 transitions. [2021-07-13 18:51:46,284 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) [2021-07-13 18:51:46,285 INFO L276 IsEmpty]: Start isEmpty. Operand 4963 states and 16878 transitions. [2021-07-13 18:51:46,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-07-13 18:51:46,295 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:51:46,295 INFO L508 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] [2021-07-13 18:51:46,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 18:51:46,296 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:51:46,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:51:46,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1805902004, now seen corresponding path program 1 times [2021-07-13 18:51:46,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:51:46,297 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139707704] [2021-07-13 18:51:46,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:51:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:51:46,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:51:46,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:51:46,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139707704] [2021-07-13 18:51:46,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139707704] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:51:46,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:51:46,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:51:46,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429499917] [2021-07-13 18:51:46,500 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:51:46,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:51:46,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:51:46,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:51:46,501 INFO L87 Difference]: Start difference. First operand 4963 states and 16878 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 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) [2021-07-13 18:51:46,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:51:46,678 INFO L93 Difference]: Finished difference Result 5987 states and 20175 transitions. [2021-07-13 18:51:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 18:51:46,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 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 [2021-07-13 18:51:46,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:51:46,773 INFO L225 Difference]: With dead ends: 5987 [2021-07-13 18:51:46,774 INFO L226 Difference]: Without dead ends: 4783 [2021-07-13 18:51:46,775 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 127.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:51:46,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4783 states. [2021-07-13 18:51:46,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4783 to 4783. [2021-07-13 18:51:46,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4783 states, 4782 states have (on average 3.386449184441656) internal successors, (16194), 4782 states have internal predecessors, (16194), 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) [2021-07-13 18:51:47,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4783 states to 4783 states and 16194 transitions. [2021-07-13 18:51:47,017 INFO L78 Accepts]: Start accepts. Automaton has 4783 states and 16194 transitions. Word has length 50 [2021-07-13 18:51:47,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:51:47,017 INFO L482 AbstractCegarLoop]: Abstraction has 4783 states and 16194 transitions. [2021-07-13 18:51:47,018 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 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) [2021-07-13 18:51:47,018 INFO L276 IsEmpty]: Start isEmpty. Operand 4783 states and 16194 transitions. [2021-07-13 18:51:47,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-07-13 18:51:47,031 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:51:47,032 INFO L508 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] [2021-07-13 18:51:47,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 18:51:47,032 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:51:47,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:51:47,033 INFO L82 PathProgramCache]: Analyzing trace with hash 591446496, now seen corresponding path program 1 times [2021-07-13 18:51:47,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:51:47,033 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026624858] [2021-07-13 18:51:47,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:51:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:51:47,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:51:47,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:51:47,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026624858] [2021-07-13 18:51:47,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026624858] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:51:47,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:51:47,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:51:47,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391334830] [2021-07-13 18:51:47,207 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:51:47,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:51:47,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:51:47,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:51:47,208 INFO L87 Difference]: Start difference. First operand 4783 states and 16194 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) [2021-07-13 18:51:47,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:51:47,361 INFO L93 Difference]: Finished difference Result 7891 states and 26221 transitions. [2021-07-13 18:51:47,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 18:51:47,362 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 [2021-07-13 18:51:47,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:51:47,399 INFO L225 Difference]: With dead ends: 7891 [2021-07-13 18:51:47,399 INFO L226 Difference]: Without dead ends: 5287 [2021-07-13 18:51:47,400 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 142.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:51:47,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5287 states. [2021-07-13 18:51:47,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5287 to 4447. [2021-07-13 18:51:47,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4447 states, 4446 states have (on average 3.2989203778677463) internal successors, (14667), 4446 states have internal predecessors, (14667), 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) [2021-07-13 18:51:47,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4447 states to 4447 states and 14667 transitions. [2021-07-13 18:51:47,597 INFO L78 Accepts]: Start accepts. Automaton has 4447 states and 14667 transitions. Word has length 51 [2021-07-13 18:51:47,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:51:47,598 INFO L482 AbstractCegarLoop]: Abstraction has 4447 states and 14667 transitions. [2021-07-13 18:51:47,598 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) [2021-07-13 18:51:47,598 INFO L276 IsEmpty]: Start isEmpty. Operand 4447 states and 14667 transitions. [2021-07-13 18:51:47,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-07-13 18:51:47,610 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:51:47,610 INFO L508 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] [2021-07-13 18:51:47,610 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-13 18:51:47,610 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:51:47,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:51:47,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1199641965, now seen corresponding path program 1 times [2021-07-13 18:51:47,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:51:47,611 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438889399] [2021-07-13 18:51:47,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:51:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:51:47,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:51:47,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:51:47,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438889399] [2021-07-13 18:51:47,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438889399] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:51:47,702 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:51:47,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:51:47,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429620222] [2021-07-13 18:51:47,702 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:51:47,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:51:47,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:51:47,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:51:47,703 INFO L87 Difference]: Start difference. First operand 4447 states and 14667 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) [2021-07-13 18:51:47,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:51:47,840 INFO L93 Difference]: Finished difference Result 4847 states and 15882 transitions. [2021-07-13 18:51:47,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 18:51:47,840 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 [2021-07-13 18:51:47,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:51:47,919 INFO L225 Difference]: With dead ends: 4847 [2021-07-13 18:51:47,919 INFO L226 Difference]: Without dead ends: 4147 [2021-07-13 18:51:47,920 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 107.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:51:47,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4147 states. [2021-07-13 18:51:48,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4147 to 4147. [2021-07-13 18:51:48,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4147 states, 4146 states have (on average 3.277134587554269) internal successors, (13587), 4146 states have internal predecessors, (13587), 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) [2021-07-13 18:51:48,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4147 states to 4147 states and 13587 transitions. [2021-07-13 18:51:48,056 INFO L78 Accepts]: Start accepts. Automaton has 4147 states and 13587 transitions. Word has length 52 [2021-07-13 18:51:48,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:51:48,056 INFO L482 AbstractCegarLoop]: Abstraction has 4147 states and 13587 transitions. [2021-07-13 18:51:48,056 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) [2021-07-13 18:51:48,057 INFO L276 IsEmpty]: Start isEmpty. Operand 4147 states and 13587 transitions. [2021-07-13 18:51:48,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-07-13 18:51:48,070 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:51:48,071 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:51:48,071 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-13 18:51:48,071 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:51:48,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:51:48,075 INFO L82 PathProgramCache]: Analyzing trace with hash -509769829, now seen corresponding path program 1 times [2021-07-13 18:51:48,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:51:48,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413732895] [2021-07-13 18:51:48,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:51:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:51:48,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:51:48,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:51:48,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413732895] [2021-07-13 18:51:48,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413732895] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:51:48,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:51:48,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 18:51:48,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636271130] [2021-07-13 18:51:48,220 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 18:51:48,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:51:48,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 18:51:48,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-13 18:51:48,221 INFO L87 Difference]: Start difference. First operand 4147 states and 13587 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:51:48,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:51:48,393 INFO L93 Difference]: Finished difference Result 5729 states and 18651 transitions. [2021-07-13 18:51:48,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 18:51:48,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-07-13 18:51:48,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:51:48,407 INFO L225 Difference]: With dead ends: 5729 [2021-07-13 18:51:48,407 INFO L226 Difference]: Without dead ends: 3109 [2021-07-13 18:51:48,408 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 145.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-13 18:51:48,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2021-07-13 18:51:48,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3109. [2021-07-13 18:51:48,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 3108 states have (on average 3.144144144144144) internal successors, (9772), 3108 states have internal predecessors, (9772), 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) [2021-07-13 18:51:48,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 9772 transitions. [2021-07-13 18:51:48,550 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 9772 transitions. Word has length 53 [2021-07-13 18:51:48,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:51:48,551 INFO L482 AbstractCegarLoop]: Abstraction has 3109 states and 9772 transitions. [2021-07-13 18:51:48,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:51:48,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 9772 transitions. [2021-07-13 18:51:48,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-13 18:51:48,560 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:51:48,560 INFO L508 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] [2021-07-13 18:51:48,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-13 18:51:48,561 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:51:48,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:51:48,561 INFO L82 PathProgramCache]: Analyzing trace with hash 446997333, now seen corresponding path program 1 times [2021-07-13 18:51:48,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:51:48,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001514078] [2021-07-13 18:51:48,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:51:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:51:48,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:51:48,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:51:48,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001514078] [2021-07-13 18:51:48,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001514078] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:51:48,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:51:48,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:51:48,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919252647] [2021-07-13 18:51:48,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:51:48,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:51:48,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:51:48,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:51:48,693 INFO L87 Difference]: Start difference. First operand 3109 states and 9772 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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) [2021-07-13 18:51:48,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:51:48,864 INFO L93 Difference]: Finished difference Result 3749 states and 11692 transitions. [2021-07-13 18:51:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 18:51:48,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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 [2021-07-13 18:51:48,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:51:48,895 INFO L225 Difference]: With dead ends: 3749 [2021-07-13 18:51:48,895 INFO L226 Difference]: Without dead ends: 2597 [2021-07-13 18:51:48,896 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 144.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:51:48,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2021-07-13 18:51:48,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2405. [2021-07-13 18:51:48,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 2404 states have (on average 3.026622296173045) internal successors, (7276), 2404 states have internal predecessors, (7276), 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) [2021-07-13 18:51:48,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 7276 transitions. [2021-07-13 18:51:48,986 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 7276 transitions. Word has length 54 [2021-07-13 18:51:48,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:51:48,986 INFO L482 AbstractCegarLoop]: Abstraction has 2405 states and 7276 transitions. [2021-07-13 18:51:48,986 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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) [2021-07-13 18:51:48,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 7276 transitions. [2021-07-13 18:51:48,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-07-13 18:51:48,992 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:51:48,993 INFO L508 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] [2021-07-13 18:51:48,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-13 18:51:48,993 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:51:48,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:51:48,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1128658508, now seen corresponding path program 1 times [2021-07-13 18:51:48,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:51:48,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749914642] [2021-07-13 18:51:48,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:51:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:51:49,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:51:49,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:51:49,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749914642] [2021-07-13 18:51:49,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749914642] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:51:49,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:51:49,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:51:49,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590926835] [2021-07-13 18:51:49,106 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:51:49,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:51:49,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:51:49,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:51:49,107 INFO L87 Difference]: Start difference. First operand 2405 states and 7276 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) [2021-07-13 18:51:49,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:51:49,226 INFO L93 Difference]: Finished difference Result 2882 states and 8614 transitions. [2021-07-13 18:51:49,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 18:51:49,228 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 [2021-07-13 18:51:49,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:51:49,236 INFO L225 Difference]: With dead ends: 2882 [2021-07-13 18:51:49,236 INFO L226 Difference]: Without dead ends: 2186 [2021-07-13 18:51:49,236 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 96.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:51:49,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2186 states. [2021-07-13 18:51:49,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2186 to 2186. [2021-07-13 18:51:49,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2186 states, 2185 states have (on average 2.9752860411899316) internal successors, (6501), 2185 states have internal predecessors, (6501), 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) [2021-07-13 18:51:49,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2186 states to 2186 states and 6501 transitions. [2021-07-13 18:51:49,299 INFO L78 Accepts]: Start accepts. Automaton has 2186 states and 6501 transitions. Word has length 55 [2021-07-13 18:51:49,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:51:49,299 INFO L482 AbstractCegarLoop]: Abstraction has 2186 states and 6501 transitions. [2021-07-13 18:51:49,299 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) [2021-07-13 18:51:49,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2186 states and 6501 transitions. [2021-07-13 18:51:49,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-07-13 18:51:49,304 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:51:49,304 INFO L508 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] [2021-07-13 18:51:49,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-13 18:51:49,308 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:51:49,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:51:49,309 INFO L82 PathProgramCache]: Analyzing trace with hash 107476753, now seen corresponding path program 1 times [2021-07-13 18:51:49,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:51:49,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218684183] [2021-07-13 18:51:49,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:51:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:51:49,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:51:49,436 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:51:49,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218684183] [2021-07-13 18:51:49,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218684183] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:51:49,436 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:51:49,437 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 18:51:49,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838854318] [2021-07-13 18:51:49,437 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 18:51:49,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:51:49,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 18:51:49,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-13 18:51:49,438 INFO L87 Difference]: Start difference. First operand 2186 states and 6501 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) [2021-07-13 18:51:49,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:51:49,586 INFO L93 Difference]: Finished difference Result 2123 states and 6141 transitions. [2021-07-13 18:51:49,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 18:51:49,586 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 [2021-07-13 18:51:49,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:51:49,591 INFO L225 Difference]: With dead ends: 2123 [2021-07-13 18:51:49,591 INFO L226 Difference]: Without dead ends: 1506 [2021-07-13 18:51:49,592 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 110.9ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-13 18:51:49,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2021-07-13 18:51:49,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1506. [2021-07-13 18:51:49,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 2.823920265780731) internal successors, (4250), 1505 states have internal predecessors, (4250), 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) [2021-07-13 18:51:49,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 4250 transitions. [2021-07-13 18:51:49,632 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 4250 transitions. Word has length 56 [2021-07-13 18:51:49,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:51:49,633 INFO L482 AbstractCegarLoop]: Abstraction has 1506 states and 4250 transitions. [2021-07-13 18:51:49,633 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) [2021-07-13 18:51:49,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 4250 transitions. [2021-07-13 18:51:49,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-13 18:51:49,637 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:51:49,637 INFO L508 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] [2021-07-13 18:51:49,637 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-13 18:51:49,637 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:51:49,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:51:49,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1254971864, now seen corresponding path program 1 times [2021-07-13 18:51:49,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:51:49,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187879285] [2021-07-13 18:51:49,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:51:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:51:49,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:51:49,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:51:49,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187879285] [2021-07-13 18:51:49,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187879285] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:51:49,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:51:49,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 18:51:49,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444341994] [2021-07-13 18:51:49,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 18:51:49,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:51:49,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 18:51:49,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:51:49,725 INFO L87 Difference]: Start difference. First operand 1506 states and 4250 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) [2021-07-13 18:51:49,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:51:49,819 INFO L93 Difference]: Finished difference Result 1074 states and 2927 transitions. [2021-07-13 18:51:49,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-13 18:51:49,819 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 [2021-07-13 18:51:49,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:51:49,820 INFO L225 Difference]: With dead ends: 1074 [2021-07-13 18:51:49,820 INFO L226 Difference]: Without dead ends: 0 [2021-07-13 18:51:49,820 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 100.5ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-07-13 18:51:49,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-13 18:51:49,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-13 18:51:49,820 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) [2021-07-13 18:51:49,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-13 18:51:49,821 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-07-13 18:51:49,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:51:49,821 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-13 18:51:49,821 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) [2021-07-13 18:51:49,821 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-13 18:51:49,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-13 18:51:49,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-13 18:51:49,823 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 18:51:49,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 06:51:49 BasicIcfg [2021-07-13 18:51:49,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 18:51:49,827 INFO L168 Benchmark]: Toolchain (without parser) took 6167.67 ms. Allocated memory was 180.4 MB in the beginning and 901.8 MB in the end (delta: 721.4 MB). Free memory was 143.2 MB in the beginning and 489.0 MB in the end (delta: -345.7 MB). Peak memory consumption was 376.0 MB. Max. memory is 8.0 GB. [2021-07-13 18:51:49,827 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 180.4 MB. Free memory is still 161.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 18:51:49,827 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.73 ms. Allocated memory is still 180.4 MB. Free memory was 143.0 MB in the beginning and 154.1 MB in the end (delta: -11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-13 18:51:49,827 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.61 ms. Allocated memory is still 180.4 MB. Free memory was 154.1 MB in the beginning and 152.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:51:49,828 INFO L168 Benchmark]: Boogie Preprocessor took 34.03 ms. Allocated memory is still 180.4 MB. Free memory was 152.5 MB in the beginning and 151.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-13 18:51:49,828 INFO L168 Benchmark]: RCFGBuilder took 535.47 ms. Allocated memory is still 180.4 MB. Free memory was 151.0 MB in the beginning and 126.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:51:49,828 INFO L168 Benchmark]: TraceAbstraction took 5055.80 ms. Allocated memory was 180.4 MB in the beginning and 901.8 MB in the end (delta: 721.4 MB). Free memory was 126.8 MB in the beginning and 489.0 MB in the end (delta: -362.1 MB). Peak memory consumption was 360.3 MB. Max. memory is 8.0 GB. [2021-07-13 18:51:49,830 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 180.4 MB. Free memory is still 161.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 471.73 ms. Allocated memory is still 180.4 MB. Free memory was 143.0 MB in the beginning and 154.1 MB in the end (delta: -11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 62.61 ms. Allocated memory is still 180.4 MB. Free memory was 154.1 MB in the beginning and 152.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.03 ms. Allocated memory is still 180.4 MB. Free memory was 152.5 MB in the beginning and 151.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 535.47 ms. Allocated memory is still 180.4 MB. Free memory was 151.0 MB in the beginning and 126.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5055.80 ms. Allocated memory was 180.4 MB in the beginning and 901.8 MB in the end (delta: 721.4 MB). Free memory was 126.8 MB in the beginning and 489.0 MB in the end (delta: -362.1 MB). Peak memory consumption was 360.3 MB. Max. memory is 8.0 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4966.8ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 133.0ms, AutomataDifference: 1850.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 210.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 943 SDtfs, 1238 SDslu, 2872 SDs, 0 SdLazy, 281 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 249.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1115.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5558occurred in iteration=0, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1205.6ms AutomataMinimizationTime, 9 MinimizatonAttempts, 1032 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 42.2ms SsaConstructionTime, 243.6ms SatisfiabilityAnalysisTime, 1066.8ms InterpolantComputationTime, 477 NumberOfCodeBlocks, 477 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 468 ConstructedInterpolants, 0 QuantifiedInterpolants, 1364 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...