/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/safe000_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 17:13:46,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 17:13:46,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 17:13:46,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-12 17:13:46,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 17:13:46,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 17:13:46,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 17:13:46,263 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 [2021-06-12 17:13:46,285 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 17:13:46,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 17:13:46,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 17:13:46,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 17:13:46,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 17:13:46,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 17:13:46,287 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 17:13:46,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 17:13:46,287 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 17:13:46,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 17:13:46,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 17:13:46,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 17:13:46,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 17:13:46,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 17:13:46,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 17:13:46,288 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 17:13:46,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 17:13:46,289 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 17:13:46,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 17:13:46,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 17:13:46,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 17:13:46,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 17:13:46,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 17:13:46,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 17:13:46,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 17:13:46,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 17:13:46,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 17:13:46,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 17:13:46,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 17:13:46,290 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 17:13:46,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 17:13:46,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 17:13:46,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 17:13:46,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 17:13:46,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 17:13:46,609 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 17:13:46,610 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 17:13:46,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2021-06-12 17:13:46,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60aaae4db/f1ab8e755c5b473cb004c5e7e913405e/FLAG1150640b3 [2021-06-12 17:13:47,084 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 17:13:47,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2021-06-12 17:13:47,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60aaae4db/f1ab8e755c5b473cb004c5e7e913405e/FLAG1150640b3 [2021-06-12 17:13:47,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60aaae4db/f1ab8e755c5b473cb004c5e7e913405e [2021-06-12 17:13:47,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 17:13:47,121 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 17:13:47,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 17:13:47,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 17:13:47,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 17:13:47,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:13:47" (1/1) ... [2021-06-12 17:13:47,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22307519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:13:47, skipping insertion in model container [2021-06-12 17:13:47,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:13:47" (1/1) ... [2021-06-12 17:13:47,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 17:13:47,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 17:13:47,341 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/safe000_pso.oepc.i[950,963] [2021-06-12 17:13:47,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:13:47,545 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 17:13:47,556 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/safe000_pso.oepc.i[950,963] [2021-06-12 17:13:47,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:13:47,670 INFO L208 MainTranslator]: Completed translation [2021-06-12 17:13:47,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:13:47 WrapperNode [2021-06-12 17:13:47,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 17:13:47,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 17:13:47,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 17:13:47,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 17:13:47,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:13:47" (1/1) ... [2021-06-12 17:13:47,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:13:47" (1/1) ... [2021-06-12 17:13:47,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 17:13:47,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 17:13:47,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 17:13:47,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 17:13:47,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:13:47" (1/1) ... [2021-06-12 17:13:47,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:13:47" (1/1) ... [2021-06-12 17:13:47,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:13:47" (1/1) ... [2021-06-12 17:13:47,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:13:47" (1/1) ... [2021-06-12 17:13:47,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:13:47" (1/1) ... [2021-06-12 17:13:47,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:13:47" (1/1) ... [2021-06-12 17:13:47,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:13:47" (1/1) ... [2021-06-12 17:13:47,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 17:13:47,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 17:13:47,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 17:13:47,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 17:13:47,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:13:47" (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 [2021-06-12 17:13:47,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 17:13:47,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-12 17:13:47,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 17:13:47,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 17:13:47,882 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-12 17:13:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-12 17:13:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-12 17:13:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-12 17:13:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-12 17:13:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-12 17:13:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 17:13:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-12 17:13:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 17:13:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 17:13:47,886 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 17:13:48,242 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 17:13:48,242 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-12 17:13:48,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:13:48 BoogieIcfgContainer [2021-06-12 17:13:48,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 17:13:48,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 17:13:48,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 17:13:48,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 17:13:48,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 05:13:47" (1/3) ... [2021-06-12 17:13:48,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bdd2776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:13:48, skipping insertion in model container [2021-06-12 17:13:48,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:13:47" (2/3) ... [2021-06-12 17:13:48,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bdd2776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:13:48, skipping insertion in model container [2021-06-12 17:13:48,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:13:48" (3/3) ... [2021-06-12 17:13:48,250 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc.i [2021-06-12 17:13:48,255 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 17:13:48,256 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 17:13:48,256 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-12 17:13:48,256 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 17:13:48,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,278 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,279 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,279 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,279 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,280 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,280 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,280 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,280 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,281 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,281 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,281 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,281 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,281 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,281 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,282 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,282 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,282 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,282 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,282 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,282 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,283 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,283 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,283 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,283 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,283 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,283 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,284 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,284 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,285 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,286 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,290 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,290 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,291 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,292 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:13:48,293 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-12 17:13:48,310 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-12 17:13:48,326 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 17:13:48,326 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 17:13:48,326 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 17:13:48,326 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 17:13:48,326 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 17:13:48,326 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 17:13:48,326 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 17:13:48,327 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 17:13:48,335 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-12 17:13:48,940 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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) [2021-06-12 17:13:48,976 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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) [2021-06-12 17:13:49,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-12 17:13:49,008 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:13:49,009 INFO L472 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] [2021-06-12 17:13:49,009 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:13:49,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:13:49,014 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-06-12 17:13:49,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:13:49,021 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186753809] [2021-06-12 17:13:49,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:13:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:13:49,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:13:49,461 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:13:49,461 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186753809] [2021-06-12 17:13:49,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186753809] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:13:49,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:13:49,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:13:49,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654532457] [2021-06-12 17:13:49,467 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:13:49,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:13:49,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:13:49,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:13:49,503 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-06-12 17:13:50,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:13:50,031 INFO L93 Difference]: Finished difference Result 17698 states and 60802 transitions. [2021-06-12 17:13:50,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-12 17:13:50,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2021-06-12 17:13:50,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:13:50,137 INFO L225 Difference]: With dead ends: 17698 [2021-06-12 17:13:50,137 INFO L226 Difference]: Without dead ends: 5948 [2021-06-12 17:13:50,138 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 199.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:13:50,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5948 states. [2021-06-12 17:13:50,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5948 to 5156. [2021-06-12 17:13:50,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5155 states have (on average 3.3594568380213383) internal successors, (17318), 5155 states have internal predecessors, (17318), 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) [2021-06-12 17:13:50,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 17318 transitions. [2021-06-12 17:13:50,475 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 17318 transitions. Word has length 49 [2021-06-12 17:13:50,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:13:50,476 INFO L482 AbstractCegarLoop]: Abstraction has 5156 states and 17318 transitions. [2021-06-12 17:13:50,476 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-06-12 17:13:50,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 17318 transitions. [2021-06-12 17:13:50,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-12 17:13:50,535 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:13:50,535 INFO L472 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] [2021-06-12 17:13:50,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 17:13:50,535 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:13:50,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:13:50,536 INFO L82 PathProgramCache]: Analyzing trace with hash 2138163718, now seen corresponding path program 1 times [2021-06-12 17:13:50,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:13:50,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784645093] [2021-06-12 17:13:50,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:13:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:13:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:13:50,646 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:13:50,646 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784645093] [2021-06-12 17:13:50,646 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784645093] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:13:50,646 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:13:50,646 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:13:50,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812858429] [2021-06-12 17:13:50,647 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:13:50,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:13:50,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:13:50,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:13:50,648 INFO L87 Difference]: Start difference. First operand 5156 states and 17318 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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) [2021-06-12 17:13:50,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:13:50,878 INFO L93 Difference]: Finished difference Result 6746 states and 22534 transitions. [2021-06-12 17:13:50,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:13:50,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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 [2021-06-12 17:13:50,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:13:50,899 INFO L225 Difference]: With dead ends: 6746 [2021-06-12 17:13:50,899 INFO L226 Difference]: Without dead ends: 3270 [2021-06-12 17:13:50,900 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 111.1ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-12 17:13:50,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3270 states. [2021-06-12 17:13:50,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3270 to 3270. [2021-06-12 17:13:50,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3270 states, 3269 states have (on average 3.241358213520954) internal successors, (10596), 3269 states have internal predecessors, (10596), 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) [2021-06-12 17:13:51,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 10596 transitions. [2021-06-12 17:13:51,005 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 10596 transitions. Word has length 52 [2021-06-12 17:13:51,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:13:51,006 INFO L482 AbstractCegarLoop]: Abstraction has 3270 states and 10596 transitions. [2021-06-12 17:13:51,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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) [2021-06-12 17:13:51,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 10596 transitions. [2021-06-12 17:13:51,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-12 17:13:51,014 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:13:51,015 INFO L472 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] [2021-06-12 17:13:51,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 17:13:51,015 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:13:51,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:13:51,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1066159869, now seen corresponding path program 1 times [2021-06-12 17:13:51,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:13:51,016 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304227909] [2021-06-12 17:13:51,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:13:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:13:51,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:13:51,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:13:51,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304227909] [2021-06-12 17:13:51,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304227909] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:13:51,154 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:13:51,154 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:13:51,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851791208] [2021-06-12 17:13:51,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:13:51,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:13:51,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:13:51,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:13:51,156 INFO L87 Difference]: Start difference. First operand 3270 states and 10596 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) [2021-06-12 17:13:51,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:13:51,268 INFO L93 Difference]: Finished difference Result 3986 states and 12801 transitions. [2021-06-12 17:13:51,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:13:51,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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 [2021-06-12 17:13:51,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:13:51,289 INFO L225 Difference]: With dead ends: 3986 [2021-06-12 17:13:51,289 INFO L226 Difference]: Without dead ends: 3538 [2021-06-12 17:13:51,290 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 125.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-12 17:13:51,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3538 states. [2021-06-12 17:13:51,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3538 to 3078. [2021-06-12 17:13:51,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3078 states, 3077 states have (on average 3.225219369515762) internal successors, (9924), 3077 states have internal predecessors, (9924), 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) [2021-06-12 17:13:51,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3078 states to 3078 states and 9924 transitions. [2021-06-12 17:13:51,388 INFO L78 Accepts]: Start accepts. Automaton has 3078 states and 9924 transitions. Word has length 55 [2021-06-12 17:13:51,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:13:51,389 INFO L482 AbstractCegarLoop]: Abstraction has 3078 states and 9924 transitions. [2021-06-12 17:13:51,389 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) [2021-06-12 17:13:51,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3078 states and 9924 transitions. [2021-06-12 17:13:51,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-12 17:13:51,396 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:13:51,396 INFO L472 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] [2021-06-12 17:13:51,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 17:13:51,396 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:13:51,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:13:51,397 INFO L82 PathProgramCache]: Analyzing trace with hash -44535618, now seen corresponding path program 1 times [2021-06-12 17:13:51,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:13:51,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856184096] [2021-06-12 17:13:51,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:13:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:13:51,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:13:51,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:13:51,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856184096] [2021-06-12 17:13:51,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856184096] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:13:51,486 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:13:51,486 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:13:51,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835828137] [2021-06-12 17:13:51,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:13:51,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:13:51,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:13:51,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:13:51,487 INFO L87 Difference]: Start difference. First operand 3078 states and 9924 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) [2021-06-12 17:13:51,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:13:51,629 INFO L93 Difference]: Finished difference Result 3358 states and 10758 transitions. [2021-06-12 17:13:51,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:13:51,630 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 [2021-06-12 17:13:51,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:13:51,646 INFO L225 Difference]: With dead ends: 3358 [2021-06-12 17:13:51,647 INFO L226 Difference]: Without dead ends: 2958 [2021-06-12 17:13:51,647 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 116.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-12 17:13:51,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2021-06-12 17:13:51,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2798. [2021-06-12 17:13:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 3.199856989631748) internal successors, (8950), 2797 states have internal predecessors, (8950), 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) [2021-06-12 17:13:51,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 8950 transitions. [2021-06-12 17:13:51,739 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 8950 transitions. Word has length 56 [2021-06-12 17:13:51,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:13:51,739 INFO L482 AbstractCegarLoop]: Abstraction has 2798 states and 8950 transitions. [2021-06-12 17:13:51,740 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) [2021-06-12 17:13:51,740 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 8950 transitions. [2021-06-12 17:13:51,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-12 17:13:51,747 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:13:51,747 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:13:51,747 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 17:13:51,748 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:13:51,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:13:51,748 INFO L82 PathProgramCache]: Analyzing trace with hash 2134990748, now seen corresponding path program 1 times [2021-06-12 17:13:51,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:13:51,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026074223] [2021-06-12 17:13:51,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:13:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:13:51,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:13:51,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:13:51,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026074223] [2021-06-12 17:13:51,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026074223] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:13:51,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:13:51,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:13:51,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559376097] [2021-06-12 17:13:51,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:13:51,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:13:51,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:13:51,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:13:51,901 INFO L87 Difference]: Start difference. First operand 2798 states and 8950 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:13:52,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:13:52,053 INFO L93 Difference]: Finished difference Result 4122 states and 13123 transitions. [2021-06-12 17:13:52,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:13:52,053 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-12 17:13:52,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:13:52,073 INFO L225 Difference]: With dead ends: 4122 [2021-06-12 17:13:52,073 INFO L226 Difference]: Without dead ends: 1877 [2021-06-12 17:13:52,074 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 132.7ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-12 17:13:52,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2021-06-12 17:13:52,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1877. [2021-06-12 17:13:52,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1876 states have (on average 3.064498933901919) internal successors, (5749), 1876 states have internal predecessors, (5749), 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) [2021-06-12 17:13:52,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 5749 transitions. [2021-06-12 17:13:52,131 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 5749 transitions. Word has length 57 [2021-06-12 17:13:52,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:13:52,131 INFO L482 AbstractCegarLoop]: Abstraction has 1877 states and 5749 transitions. [2021-06-12 17:13:52,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:13:52,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 5749 transitions. [2021-06-12 17:13:52,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-12 17:13:52,137 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:13:52,137 INFO L472 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] [2021-06-12 17:13:52,137 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 17:13:52,137 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:13:52,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:13:52,137 INFO L82 PathProgramCache]: Analyzing trace with hash -212208054, now seen corresponding path program 1 times [2021-06-12 17:13:52,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:13:52,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294004005] [2021-06-12 17:13:52,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:13:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:13:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:13:52,283 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:13:52,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294004005] [2021-06-12 17:13:52,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294004005] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:13:52,284 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:13:52,284 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:13:52,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693343030] [2021-06-12 17:13:52,284 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:13:52,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:13:52,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:13:52,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:13:52,285 INFO L87 Difference]: Start difference. First operand 1877 states and 5749 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) [2021-06-12 17:13:52,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:13:52,357 INFO L93 Difference]: Finished difference Result 1749 states and 5333 transitions. [2021-06-12 17:13:52,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-12 17:13:52,357 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 [2021-06-12 17:13:52,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:13:52,358 INFO L225 Difference]: With dead ends: 1749 [2021-06-12 17:13:52,358 INFO L226 Difference]: Without dead ends: 0 [2021-06-12 17:13:52,358 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 89.3ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-12 17:13:52,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-12 17:13:52,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-12 17:13:52,359 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) [2021-06-12 17:13:52,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-12 17:13:52,359 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-06-12 17:13:52,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:13:52,359 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-12 17:13:52,359 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) [2021-06-12 17:13:52,359 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-12 17:13:52,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 17:13:52,360 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 17:13:52,362 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-12 17:13:52,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.06 05:13:52 BasicIcfg [2021-06-12 17:13:52,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-12 17:13:52,364 INFO L168 Benchmark]: Toolchain (without parser) took 5243.75 ms. Allocated memory was 185.6 MB in the beginning and 822.1 MB in the end (delta: 636.5 MB). Free memory was 148.0 MB in the beginning and 559.8 MB in the end (delta: -411.8 MB). Peak memory consumption was 225.5 MB. Max. memory is 8.0 GB. [2021-06-12 17:13:52,365 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 185.6 MB. Free memory is still 166.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 17:13:52,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.73 ms. Allocated memory is still 185.6 MB. Free memory was 147.8 MB in the beginning and 147.5 MB in the end (delta: 251.8 kB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-12 17:13:52,365 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.93 ms. Allocated memory is still 185.6 MB. Free memory was 147.5 MB in the beginning and 145.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:13:52,366 INFO L168 Benchmark]: Boogie Preprocessor took 30.47 ms. Allocated memory is still 185.6 MB. Free memory was 145.4 MB in the beginning and 143.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-12 17:13:52,366 INFO L168 Benchmark]: RCFGBuilder took 480.66 ms. Allocated memory is still 185.6 MB. Free memory was 143.9 MB in the beginning and 120.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:13:52,367 INFO L168 Benchmark]: TraceAbstraction took 4118.08 ms. Allocated memory was 185.6 MB in the beginning and 822.1 MB in the end (delta: 636.5 MB). Free memory was 119.8 MB in the beginning and 559.8 MB in the end (delta: -440.0 MB). Peak memory consumption was 197.5 MB. Max. memory is 8.0 GB. [2021-06-12 17:13:52,369 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 185.6 MB. Free memory is still 166.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 547.73 ms. Allocated memory is still 185.6 MB. Free memory was 147.8 MB in the beginning and 147.5 MB in the end (delta: 251.8 kB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 59.93 ms. Allocated memory is still 185.6 MB. Free memory was 147.5 MB in the beginning and 145.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.47 ms. Allocated memory is still 185.6 MB. Free memory was 145.4 MB in the beginning and 143.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 480.66 ms. Allocated memory is still 185.6 MB. Free memory was 143.9 MB in the beginning and 120.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4118.08 ms. Allocated memory was 185.6 MB in the beginning and 822.1 MB in the end (delta: 636.5 MB). Free memory was 119.8 MB in the beginning and 559.8 MB in the end (delta: -440.0 MB). Peak memory consumption was 197.5 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, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4036.5ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 152.6ms, AutomataDifference: 1464.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 613.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 662 SDtfs, 984 SDslu, 2318 SDs, 0 SdLazy, 216 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 172.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 774.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 678.0ms AutomataMinimizationTime, 6 MinimizatonAttempts, 1412 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.3ms SsaConstructionTime, 169.5ms SatisfiabilityAnalysisTime, 784.9ms InterpolantComputationTime, 327 NumberOfCodeBlocks, 327 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 321 ConstructedInterpolants, 0 QuantifiedInterpolants, 1639 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...