/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/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 17:22:55,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 17:22:55,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 17:22:55,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-12 17:22:55,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 17:22:55,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 17:22:55,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 17:22:55,912 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 17:22:55,947 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 17:22:55,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 17:22:55,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 17:22:55,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 17:22:55,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 17:22:55,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 17:22:55,951 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 17:22:55,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 17:22:55,951 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 17:22:55,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 17:22:55,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 17:22:55,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 17:22:55,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 17:22:55,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 17:22:55,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 17:22:55,953 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 17:22:55,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 17:22:55,953 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 17:22:55,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 17:22:55,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 17:22:55,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 17:22:55,954 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 17:22:55,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 17:22:55,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 17:22:55,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 17:22:55,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 17:22:55,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 17:22:55,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 17:22:55,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 17:22:55,955 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 17:22:55,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 17:22:55,956 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 17:22:56,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 17:22:56,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 17:22:56,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 17:22:56,288 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 17:22:56,289 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 17:22:56,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2021-06-12 17:22:56,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e64e2524/4cf533777d9348cc9e8546e3a83ab360/FLAG4f6f86454 [2021-06-12 17:22:56,830 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 17:22:56,830 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2021-06-12 17:22:56,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e64e2524/4cf533777d9348cc9e8546e3a83ab360/FLAG4f6f86454 [2021-06-12 17:22:56,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e64e2524/4cf533777d9348cc9e8546e3a83ab360 [2021-06-12 17:22:56,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 17:22:56,864 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 17:22:56,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 17:22:56,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 17:22:56,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 17:22:56,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:22:56" (1/1) ... [2021-06-12 17:22:56,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac9d8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:22:56, skipping insertion in model container [2021-06-12 17:22:56,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:22:56" (1/1) ... [2021-06-12 17:22:56,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 17:22:56,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 17:22:57,049 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/safe030_tso.opt.i[949,962] [2021-06-12 17:22:57,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:22:57,267 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 17:22:57,278 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/safe030_tso.opt.i[949,962] [2021-06-12 17:22:57,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:22:57,385 INFO L208 MainTranslator]: Completed translation [2021-06-12 17:22:57,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:22:57 WrapperNode [2021-06-12 17:22:57,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 17:22:57,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 17:22:57,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 17:22:57,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 17:22:57,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:22:57" (1/1) ... [2021-06-12 17:22:57,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:22:57" (1/1) ... [2021-06-12 17:22:57,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 17:22:57,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 17:22:57,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 17:22:57,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 17:22:57,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:22:57" (1/1) ... [2021-06-12 17:22:57,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:22:57" (1/1) ... [2021-06-12 17:22:57,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:22:57" (1/1) ... [2021-06-12 17:22:57,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:22:57" (1/1) ... [2021-06-12 17:22:57,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:22:57" (1/1) ... [2021-06-12 17:22:57,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:22:57" (1/1) ... [2021-06-12 17:22:57,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:22:57" (1/1) ... [2021-06-12 17:22:57,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 17:22:57,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 17:22:57,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 17:22:57,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 17:22:57,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:22:57" (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 17:22:57,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 17:22:57,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-12 17:22:57,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 17:22:57,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 17:22:57,710 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-12 17:22:57,711 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-12 17:22:57,712 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-12 17:22:57,712 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-12 17:22:57,712 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-12 17:22:57,712 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-12 17:22:57,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 17:22:57,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-12 17:22:57,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 17:22:57,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 17:22:57,713 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 17:22:58,096 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 17:22:58,096 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-12 17:22:58,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:22:58 BoogieIcfgContainer [2021-06-12 17:22:58,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 17:22:58,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 17:22:58,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 17:22:58,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 17:22:58,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 05:22:56" (1/3) ... [2021-06-12 17:22:58,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26010a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:22:58, skipping insertion in model container [2021-06-12 17:22:58,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:22:57" (2/3) ... [2021-06-12 17:22:58,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26010a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:22:58, skipping insertion in model container [2021-06-12 17:22:58,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:22:58" (3/3) ... [2021-06-12 17:22:58,106 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2021-06-12 17:22:58,111 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 17:22:58,111 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 17:22:58,111 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-12 17:22:58,112 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 17:22:58,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,142 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,142 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,143 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,143 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,143 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,143 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,143 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,143 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,144 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,144 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,144 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,144 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,145 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,145 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,145 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,145 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,145 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,146 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,147 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,148 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,149 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,149 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,152 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,152 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,152 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,153 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,156 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,156 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,157 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,163 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,163 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,164 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,164 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,166 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,166 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:22:58,168 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-12 17:22:58,188 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-12 17:22:58,219 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 17:22:58,219 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 17:22:58,220 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 17:22:58,220 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 17:22:58,220 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 17:22:58,220 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 17:22:58,220 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 17:22:58,220 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 17:22:58,233 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 90 places, 82 transitions, 179 flow [2021-06-12 17:22:58,788 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9330 states, 9328 states have (on average 3.5629288164665525) internal successors, (33235), 9329 states have internal predecessors, (33235), 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 17:22:58,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 9330 states, 9328 states have (on average 3.5629288164665525) internal successors, (33235), 9329 states have internal predecessors, (33235), 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 17:22:58,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-06-12 17:22:58,926 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:22:58,928 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] [2021-06-12 17:22:58,929 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:22:58,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:22:58,934 INFO L82 PathProgramCache]: Analyzing trace with hash 292083127, now seen corresponding path program 1 times [2021-06-12 17:22:58,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:22:58,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057510384] [2021-06-12 17:22:58,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:22:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:22:59,302 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 17:22:59,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:22:59,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057510384] [2021-06-12 17:22:59,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057510384] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:22:59,304 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:22:59,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:22:59,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780127241] [2021-06-12 17:22:59,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:22:59,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:22:59,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:22:59,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:22:59,342 INFO L87 Difference]: Start difference. First operand has 9330 states, 9328 states have (on average 3.5629288164665525) internal successors, (33235), 9329 states have internal predecessors, (33235), 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 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 17:22:59,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:22:59,819 INFO L93 Difference]: Finished difference Result 17929 states and 62892 transitions. [2021-06-12 17:22:59,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:22:59,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 47 [2021-06-12 17:22:59,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:22:59,878 INFO L225 Difference]: With dead ends: 17929 [2021-06-12 17:22:59,879 INFO L226 Difference]: Without dead ends: 5742 [2021-06-12 17:22:59,880 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 187.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:22:59,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5742 states. [2021-06-12 17:23:00,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5742 to 5094. [2021-06-12 17:23:00,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5094 states, 5093 states have (on average 3.297663459650501) internal successors, (16795), 5093 states have internal predecessors, (16795), 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 17:23:00,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5094 states to 5094 states and 16795 transitions. [2021-06-12 17:23:00,264 INFO L78 Accepts]: Start accepts. Automaton has 5094 states and 16795 transitions. Word has length 47 [2021-06-12 17:23:00,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:23:00,268 INFO L482 AbstractCegarLoop]: Abstraction has 5094 states and 16795 transitions. [2021-06-12 17:23:00,269 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 17:23:00,269 INFO L276 IsEmpty]: Start isEmpty. Operand 5094 states and 16795 transitions. [2021-06-12 17:23:00,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-12 17:23:00,288 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:23:00,288 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 17:23:00,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 17:23:00,288 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:23:00,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:23:00,291 INFO L82 PathProgramCache]: Analyzing trace with hash 513000118, now seen corresponding path program 1 times [2021-06-12 17:23:00,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:23:00,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147301962] [2021-06-12 17:23:00,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:23:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:23:00,557 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 17:23:00,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:23:00,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147301962] [2021-06-12 17:23:00,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147301962] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:23:00,557 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:23:00,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:23:00,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437506067] [2021-06-12 17:23:00,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:23:00,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:23:00,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:23:00,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:23:00,560 INFO L87 Difference]: Start difference. First operand 5094 states and 16795 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 17:23:00,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:23:00,717 INFO L93 Difference]: Finished difference Result 6054 states and 19858 transitions. [2021-06-12 17:23:00,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:23:00,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 17:23:00,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:23:00,746 INFO L225 Difference]: With dead ends: 6054 [2021-06-12 17:23:00,747 INFO L226 Difference]: Without dead ends: 4794 [2021-06-12 17:23:00,748 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 109.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:23:00,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4794 states. [2021-06-12 17:23:00,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4794 to 4730. [2021-06-12 17:23:00,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4730 states, 4729 states have (on average 3.2681327976316346) internal successors, (15455), 4729 states have internal predecessors, (15455), 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 17:23:00,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4730 states to 4730 states and 15455 transitions. [2021-06-12 17:23:00,948 INFO L78 Accepts]: Start accepts. Automaton has 4730 states and 15455 transitions. Word has length 49 [2021-06-12 17:23:00,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:23:00,948 INFO L482 AbstractCegarLoop]: Abstraction has 4730 states and 15455 transitions. [2021-06-12 17:23:00,949 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 17:23:00,949 INFO L276 IsEmpty]: Start isEmpty. Operand 4730 states and 15455 transitions. [2021-06-12 17:23:00,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-12 17:23:00,960 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:23:00,961 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 17:23:00,961 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 17:23:00,961 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:23:00,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:23:00,968 INFO L82 PathProgramCache]: Analyzing trace with hash -514663752, now seen corresponding path program 1 times [2021-06-12 17:23:00,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:23:00,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973116016] [2021-06-12 17:23:00,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:23:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:23:01,104 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 17:23:01,105 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:23:01,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973116016] [2021-06-12 17:23:01,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973116016] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:23:01,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:23:01,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:23:01,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803573745] [2021-06-12 17:23:01,106 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:23:01,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:23:01,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:23:01,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:23:01,107 INFO L87 Difference]: Start difference. First operand 4730 states and 15455 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 17:23:01,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:23:01,293 INFO L93 Difference]: Finished difference Result 5530 states and 18000 transitions. [2021-06-12 17:23:01,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:23:01,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 17:23:01,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:23:01,333 INFO L225 Difference]: With dead ends: 5530 [2021-06-12 17:23:01,333 INFO L226 Difference]: Without dead ends: 4550 [2021-06-12 17:23:01,334 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:23:01,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2021-06-12 17:23:01,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 4486. [2021-06-12 17:23:01,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4486 states, 4485 states have (on average 3.2452619843924193) internal successors, (14555), 4485 states have internal predecessors, (14555), 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 17:23:01,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4486 states to 4486 states and 14555 transitions. [2021-06-12 17:23:01,478 INFO L78 Accepts]: Start accepts. Automaton has 4486 states and 14555 transitions. Word has length 49 [2021-06-12 17:23:01,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:23:01,480 INFO L482 AbstractCegarLoop]: Abstraction has 4486 states and 14555 transitions. [2021-06-12 17:23:01,480 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 17:23:01,480 INFO L276 IsEmpty]: Start isEmpty. Operand 4486 states and 14555 transitions. [2021-06-12 17:23:01,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-12 17:23:01,492 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:23:01,492 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] [2021-06-12 17:23:01,492 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 17:23:01,492 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:23:01,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:23:01,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1333167095, now seen corresponding path program 1 times [2021-06-12 17:23:01,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:23:01,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516553750] [2021-06-12 17:23:01,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:23:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:23:01,679 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 17:23:01,679 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:23:01,679 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516553750] [2021-06-12 17:23:01,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516553750] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:23:01,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:23:01,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:23:01,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112943602] [2021-06-12 17:23:01,680 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:23:01,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:23:01,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:23:01,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:23:01,682 INFO L87 Difference]: Start difference. First operand 4486 states and 14555 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:23:01,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:23:01,820 INFO L93 Difference]: Finished difference Result 5126 states and 16582 transitions. [2021-06-12 17:23:01,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:23:01,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-12 17:23:01,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:23:01,835 INFO L225 Difference]: With dead ends: 5126 [2021-06-12 17:23:01,836 INFO L226 Difference]: Without dead ends: 4426 [2021-06-12 17:23:01,836 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 142.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:23:01,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2021-06-12 17:23:01,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4334. [2021-06-12 17:23:01,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4334 states, 4333 states have (on average 3.2351719363027924) internal successors, (14018), 4333 states have internal predecessors, (14018), 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 17:23:01,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4334 states to 4334 states and 14018 transitions. [2021-06-12 17:23:01,981 INFO L78 Accepts]: Start accepts. Automaton has 4334 states and 14018 transitions. Word has length 51 [2021-06-12 17:23:01,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:23:01,982 INFO L482 AbstractCegarLoop]: Abstraction has 4334 states and 14018 transitions. [2021-06-12 17:23:01,983 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:23:01,983 INFO L276 IsEmpty]: Start isEmpty. Operand 4334 states and 14018 transitions. [2021-06-12 17:23:01,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-12 17:23:01,993 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:23:01,993 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 17:23:01,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 17:23:01,997 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:23:01,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:23:01,997 INFO L82 PathProgramCache]: Analyzing trace with hash -2106799697, now seen corresponding path program 1 times [2021-06-12 17:23:01,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:23:02,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980163824] [2021-06-12 17:23:02,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:23:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:23:02,122 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 17:23:02,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:23:02,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980163824] [2021-06-12 17:23:02,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980163824] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:23:02,123 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:23:02,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:23:02,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588451452] [2021-06-12 17:23:02,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:23:02,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:23:02,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:23:02,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:23:02,124 INFO L87 Difference]: Start difference. First operand 4334 states and 14018 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:23:02,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:23:02,317 INFO L93 Difference]: Finished difference Result 6274 states and 19953 transitions. [2021-06-12 17:23:02,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:23:02,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-06-12 17:23:02,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:23:02,340 INFO L225 Difference]: With dead ends: 6274 [2021-06-12 17:23:02,341 INFO L226 Difference]: Without dead ends: 4694 [2021-06-12 17:23:02,341 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 111.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:23:02,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states. [2021-06-12 17:23:02,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 4030. [2021-06-12 17:23:02,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4030 states, 4029 states have (on average 3.166790766939687) internal successors, (12759), 4029 states have internal predecessors, (12759), 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 17:23:02,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4030 states to 4030 states and 12759 transitions. [2021-06-12 17:23:02,472 INFO L78 Accepts]: Start accepts. Automaton has 4030 states and 12759 transitions. Word has length 52 [2021-06-12 17:23:02,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:23:02,473 INFO L482 AbstractCegarLoop]: Abstraction has 4030 states and 12759 transitions. [2021-06-12 17:23:02,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:23:02,473 INFO L276 IsEmpty]: Start isEmpty. Operand 4030 states and 12759 transitions. [2021-06-12 17:23:02,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-12 17:23:02,481 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:23:02,481 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 17:23:02,482 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 17:23:02,482 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:23:02,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:23:02,482 INFO L82 PathProgramCache]: Analyzing trace with hash 399864681, now seen corresponding path program 1 times [2021-06-12 17:23:02,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:23:02,483 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36067968] [2021-06-12 17:23:02,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:23:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:23:02,564 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 17:23:02,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:23:02,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36067968] [2021-06-12 17:23:02,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36067968] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:23:02,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:23:02,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:23:02,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988183181] [2021-06-12 17:23:02,567 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:23:02,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:23:02,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:23:02,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:23:02,568 INFO L87 Difference]: Start difference. First operand 4030 states and 12759 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:23:02,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:23:02,695 INFO L93 Difference]: Finished difference Result 5830 states and 18337 transitions. [2021-06-12 17:23:02,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:23:02,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-06-12 17:23:02,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:23:02,709 INFO L225 Difference]: With dead ends: 5830 [2021-06-12 17:23:02,709 INFO L226 Difference]: Without dead ends: 4390 [2021-06-12 17:23:02,709 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 103.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:23:02,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4390 states. [2021-06-12 17:23:02,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4390 to 3698. [2021-06-12 17:23:02,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3698 states, 3697 states have (on average 3.1317284284555043) internal successors, (11578), 3697 states have internal predecessors, (11578), 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 17:23:02,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 11578 transitions. [2021-06-12 17:23:02,826 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 11578 transitions. Word has length 52 [2021-06-12 17:23:02,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:23:02,827 INFO L482 AbstractCegarLoop]: Abstraction has 3698 states and 11578 transitions. [2021-06-12 17:23:02,827 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:23:02,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 11578 transitions. [2021-06-12 17:23:02,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-12 17:23:02,836 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:23:02,836 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 17:23:02,836 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 17:23:02,836 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:23:02,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:23:02,837 INFO L82 PathProgramCache]: Analyzing trace with hash 936249593, now seen corresponding path program 1 times [2021-06-12 17:23:02,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:23:02,837 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751692017] [2021-06-12 17:23:02,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:23:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:23:02,946 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 17:23:02,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:23:02,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751692017] [2021-06-12 17:23:02,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751692017] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:23:02,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:23:02,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:23:02,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953759506] [2021-06-12 17:23:02,950 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:23:02,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:23:02,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:23:02,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:23:02,951 INFO L87 Difference]: Start difference. First operand 3698 states and 11578 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:23:03,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:23:03,116 INFO L93 Difference]: Finished difference Result 5498 states and 17156 transitions. [2021-06-12 17:23:03,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:23:03,118 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-06-12 17:23:03,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:23:03,130 INFO L225 Difference]: With dead ends: 5498 [2021-06-12 17:23:03,130 INFO L226 Difference]: Without dead ends: 4058 [2021-06-12 17:23:03,130 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 112.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:23:03,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4058 states. [2021-06-12 17:23:03,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4058 to 3394. [2021-06-12 17:23:03,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3394 states, 3393 states have (on average 3.09755378720896) internal successors, (10510), 3393 states have internal predecessors, (10510), 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 17:23:03,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 10510 transitions. [2021-06-12 17:23:03,243 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 10510 transitions. Word has length 52 [2021-06-12 17:23:03,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:23:03,243 INFO L482 AbstractCegarLoop]: Abstraction has 3394 states and 10510 transitions. [2021-06-12 17:23:03,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:23:03,243 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 10510 transitions. [2021-06-12 17:23:03,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-12 17:23:03,252 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:23:03,252 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] [2021-06-12 17:23:03,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-12 17:23:03,252 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:23:03,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:23:03,253 INFO L82 PathProgramCache]: Analyzing trace with hash 581200086, now seen corresponding path program 1 times [2021-06-12 17:23:03,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:23:03,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299318187] [2021-06-12 17:23:03,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:23:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:23:03,358 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 17:23:03,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:23:03,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299318187] [2021-06-12 17:23:03,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299318187] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:23:03,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:23:03,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:23:03,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251988933] [2021-06-12 17:23:03,361 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:23:03,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:23:03,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:23:03,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:23:03,363 INFO L87 Difference]: Start difference. First operand 3394 states and 10510 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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) [2021-06-12 17:23:03,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:23:03,496 INFO L93 Difference]: Finished difference Result 4147 states and 12611 transitions. [2021-06-12 17:23:03,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:23:03,497 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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 [2021-06-12 17:23:03,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:23:03,505 INFO L225 Difference]: With dead ends: 4147 [2021-06-12 17:23:03,505 INFO L226 Difference]: Without dead ends: 3028 [2021-06-12 17:23:03,506 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 97.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:23:03,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3028 states. [2021-06-12 17:23:03,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3028 to 3028. [2021-06-12 17:23:03,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3028 states, 3027 states have (on average 3.028741328047572) internal successors, (9168), 3027 states have internal predecessors, (9168), 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 17:23:03,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3028 states to 3028 states and 9168 transitions. [2021-06-12 17:23:03,583 INFO L78 Accepts]: Start accepts. Automaton has 3028 states and 9168 transitions. Word has length 53 [2021-06-12 17:23:03,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:23:03,583 INFO L482 AbstractCegarLoop]: Abstraction has 3028 states and 9168 transitions. [2021-06-12 17:23:03,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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) [2021-06-12 17:23:03,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3028 states and 9168 transitions. [2021-06-12 17:23:03,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-12 17:23:03,591 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:23:03,591 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 17:23:03,591 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-12 17:23:03,591 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:23:03,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:23:03,592 INFO L82 PathProgramCache]: Analyzing trace with hash -2084168617, now seen corresponding path program 1 times [2021-06-12 17:23:03,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:23:03,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597043700] [2021-06-12 17:23:03,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:23:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:23:03,674 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 17:23:03,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:23:03,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597043700] [2021-06-12 17:23:03,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597043700] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:23:03,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:23:03,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:23:03,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722461689] [2021-06-12 17:23:03,675 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:23:03,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:23:03,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:23:03,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:23:03,676 INFO L87 Difference]: Start difference. First operand 3028 states and 9168 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 17:23:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:23:03,826 INFO L93 Difference]: Finished difference Result 3001 states and 8835 transitions. [2021-06-12 17:23:03,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:23:03,826 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 17:23:03,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:23:03,832 INFO L225 Difference]: With dead ends: 3001 [2021-06-12 17:23:03,832 INFO L226 Difference]: Without dead ends: 1976 [2021-06-12 17:23:03,833 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 114.6ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-12 17:23:03,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2021-06-12 17:23:03,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1976. [2021-06-12 17:23:03,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1975 states have (on average 2.869367088607595) internal successors, (5667), 1975 states have internal predecessors, (5667), 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 17:23:03,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 5667 transitions. [2021-06-12 17:23:03,881 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 5667 transitions. Word has length 55 [2021-06-12 17:23:03,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:23:03,881 INFO L482 AbstractCegarLoop]: Abstraction has 1976 states and 5667 transitions. [2021-06-12 17:23:03,882 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 17:23:03,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 5667 transitions. [2021-06-12 17:23:03,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-12 17:23:03,886 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:23:03,886 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 17:23:03,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-12 17:23:03,887 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:23:03,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:23:03,887 INFO L82 PathProgramCache]: Analyzing trace with hash -507786984, now seen corresponding path program 1 times [2021-06-12 17:23:03,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:23:03,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448807566] [2021-06-12 17:23:03,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:23:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:23:03,974 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 17:23:03,974 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:23:03,974 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448807566] [2021-06-12 17:23:03,974 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448807566] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:23:03,974 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:23:03,975 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:23:03,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663512556] [2021-06-12 17:23:03,975 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:23:03,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:23:03,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:23:03,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:23:03,976 INFO L87 Difference]: Start difference. First operand 1976 states and 5667 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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 17:23:04,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:23:04,075 INFO L93 Difference]: Finished difference Result 1409 states and 3912 transitions. [2021-06-12 17:23:04,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-12 17:23:04,075 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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 17:23:04,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:23:04,076 INFO L225 Difference]: With dead ends: 1409 [2021-06-12 17:23:04,076 INFO L226 Difference]: Without dead ends: 0 [2021-06-12 17:23:04,076 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 107.4ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-12 17:23:04,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-12 17:23:04,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-12 17:23:04,076 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 17:23:04,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-12 17:23:04,077 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2021-06-12 17:23:04,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:23:04,077 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-12 17:23:04,077 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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 17:23:04,077 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-12 17:23:04,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 17:23:04,077 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-12 17:23:04,080 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-12 17:23:04,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.06 05:23:04 BasicIcfg [2021-06-12 17:23:04,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-12 17:23:04,082 INFO L168 Benchmark]: Toolchain (without parser) took 7218.85 ms. Allocated memory was 195.0 MB in the beginning and 772.8 MB in the end (delta: 577.8 MB). Free memory was 157.6 MB in the beginning and 406.1 MB in the end (delta: -248.5 MB). Peak memory consumption was 330.2 MB. Max. memory is 8.0 GB. [2021-06-12 17:23:04,083 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 195.0 MB. Free memory is still 175.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 17:23:04,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.63 ms. Allocated memory is still 195.0 MB. Free memory was 157.5 MB in the beginning and 156.9 MB in the end (delta: 520.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-12 17:23:04,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.88 ms. Allocated memory is still 195.0 MB. Free memory was 156.9 MB in the beginning and 154.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:23:04,084 INFO L168 Benchmark]: Boogie Preprocessor took 30.29 ms. Allocated memory is still 195.0 MB. Free memory was 154.8 MB in the beginning and 153.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-12 17:23:04,084 INFO L168 Benchmark]: RCFGBuilder took 622.99 ms. Allocated memory is still 195.0 MB. Free memory was 153.3 MB in the beginning and 129.7 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:23:04,084 INFO L168 Benchmark]: TraceAbstraction took 5981.87 ms. Allocated memory was 195.0 MB in the beginning and 772.8 MB in the end (delta: 577.8 MB). Free memory was 129.7 MB in the beginning and 406.1 MB in the end (delta: -276.4 MB). Peak memory consumption was 301.8 MB. Max. memory is 8.0 GB. [2021-06-12 17:23:04,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 195.0 MB. Free memory is still 175.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 521.63 ms. Allocated memory is still 195.0 MB. Free memory was 157.5 MB in the beginning and 156.9 MB in the end (delta: 520.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 56.88 ms. Allocated memory is still 195.0 MB. Free memory was 156.9 MB in the beginning and 154.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.29 ms. Allocated memory is still 195.0 MB. Free memory was 154.8 MB in the beginning and 153.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 622.99 ms. Allocated memory is still 195.0 MB. Free memory was 153.3 MB in the beginning and 129.7 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5981.87 ms. Allocated memory was 195.0 MB in the beginning and 772.8 MB in the end (delta: 577.8 MB). Free memory was 129.7 MB in the beginning and 406.1 MB in the end (delta: -276.4 MB). Peak memory consumption was 301.8 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, 105 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5861.8ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 225.7ms, AutomataDifference: 2085.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 567.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1133 SDtfs, 1310 SDslu, 3437 SDs, 0 SdLazy, 323 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 341.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1243.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9330occurred in iteration=0, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1347.3ms AutomataMinimizationTime, 10 MinimizatonAttempts, 2888 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 35.1ms SsaConstructionTime, 200.1ms SatisfiabilityAnalysisTime, 1182.9ms InterpolantComputationTime, 517 NumberOfCodeBlocks, 517 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 507 ConstructedInterpolants, 0 QuantifiedInterpolants, 1683 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...