/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 00:19:48,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 00:19:48,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 00:19:48,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 00:19:48,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 00:19:48,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 00:19:48,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 00:19:48,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 00:19:48,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 00:19:48,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 00:19:48,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 00:19:48,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 00:19:48,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 00:19:48,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 00:19:48,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 00:19:48,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 00:19:48,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 00:19:48,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 00:19:48,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 00:19:48,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 00:19:48,917 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 [2021-06-05 00:19:48,953 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 00:19:48,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 00:19:48,954 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 00:19:48,954 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 00:19:48,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 00:19:48,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 00:19:48,956 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 00:19:48,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 00:19:48,957 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 00:19:48,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 00:19:48,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 00:19:48,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 00:19:48,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 00:19:48,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 00:19:48,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 00:19:48,958 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 00:19:48,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 00:19:48,959 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 00:19:48,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 00:19:48,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 00:19:48,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 00:19:48,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 00:19:48,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 00:19:48,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:19:48,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 00:19:48,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 00:19:48,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 00:19:48,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 00:19:48,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 00:19:48,960 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 00:19:48,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 00:19:48,960 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 00:19:49,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 00:19:49,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 00:19:49,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 00:19:49,283 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 00:19:49,284 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 00:19:49,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2021-06-05 00:19:49,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f184aac8/e31b4c5bb0c24638af12ae6c02fdd6de/FLAG968f62a4e [2021-06-05 00:19:49,890 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 00:19:49,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2021-06-05 00:19:49,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f184aac8/e31b4c5bb0c24638af12ae6c02fdd6de/FLAG968f62a4e [2021-06-05 00:19:50,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f184aac8/e31b4c5bb0c24638af12ae6c02fdd6de [2021-06-05 00:19:50,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 00:19:50,344 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 00:19:50,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 00:19:50,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 00:19:50,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 00:19:50,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:19:50" (1/1) ... [2021-06-05 00:19:50,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc950b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:19:50, skipping insertion in model container [2021-06-05 00:19:50,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:19:50" (1/1) ... [2021-06-05 00:19:50,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 00:19:50,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 00:19:50,592 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/thin002_tso.oepc.i[950,963] [2021-06-05 00:19:50,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:19:50,821 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 00:19:50,836 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/thin002_tso.oepc.i[950,963] [2021-06-05 00:19:50,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:19:50,953 INFO L208 MainTranslator]: Completed translation [2021-06-05 00:19:50,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:19:50 WrapperNode [2021-06-05 00:19:50,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 00:19:50,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 00:19:50,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 00:19:50,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 00:19:50,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:19:50" (1/1) ... [2021-06-05 00:19:50,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:19:50" (1/1) ... [2021-06-05 00:19:51,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 00:19:51,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 00:19:51,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 00:19:51,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 00:19:51,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:19:50" (1/1) ... [2021-06-05 00:19:51,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:19:50" (1/1) ... [2021-06-05 00:19:51,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:19:50" (1/1) ... [2021-06-05 00:19:51,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:19:50" (1/1) ... [2021-06-05 00:19:51,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:19:50" (1/1) ... [2021-06-05 00:19:51,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:19:50" (1/1) ... [2021-06-05 00:19:51,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:19:50" (1/1) ... [2021-06-05 00:19:51,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 00:19:51,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 00:19:51,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 00:19:51,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 00:19:51,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:19:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:19:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 00:19:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 00:19:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 00:19:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 00:19:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 00:19:51,128 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 00:19:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 00:19:51,129 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 00:19:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 00:19:51,129 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 00:19:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-05 00:19:51,129 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-05 00:19:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 00:19:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 00:19:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 00:19:51,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 00:19:51,131 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 00:19:51,573 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 00:19:51,573 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 00:19:51,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:19:51 BoogieIcfgContainer [2021-06-05 00:19:51,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 00:19:51,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 00:19:51,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 00:19:51,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 00:19:51,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:19:50" (1/3) ... [2021-06-05 00:19:51,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6322d889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:19:51, skipping insertion in model container [2021-06-05 00:19:51,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:19:50" (2/3) ... [2021-06-05 00:19:51,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6322d889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:19:51, skipping insertion in model container [2021-06-05 00:19:51,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:19:51" (3/3) ... [2021-06-05 00:19:51,582 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2021-06-05 00:19:51,588 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 00:19:51,589 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 00:19:51,589 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 00:19:51,589 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 00:19:51,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,629 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,629 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,630 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,630 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,631 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,631 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,631 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,631 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,631 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,631 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,631 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,632 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,633 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,634 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,634 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,634 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,634 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,635 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,635 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,635 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,635 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,635 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,635 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,636 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,636 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,637 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,637 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,638 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,639 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,640 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,640 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,640 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,640 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,640 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,640 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,641 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,649 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,649 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,650 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,650 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,657 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,658 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,658 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,658 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:19:51,660 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 00:19:51,678 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 00:19:51,695 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 00:19:51,695 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 00:19:51,695 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 00:19:51,695 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 00:19:51,696 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 00:19:51,696 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 00:19:51,696 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 00:19:51,696 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 00:19:51,705 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 103 transitions, 226 flow [2021-06-05 00:20:01,453 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 70046 states, 70044 states have (on average 4.422177488435841) internal successors, (309747), 70045 states have internal predecessors, (309747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:01,592 INFO L276 IsEmpty]: Start isEmpty. Operand has 70046 states, 70044 states have (on average 4.422177488435841) internal successors, (309747), 70045 states have internal predecessors, (309747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:01,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-05 00:20:01,678 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:20:01,679 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:20:01,680 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:20:01,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:20:01,685 INFO L82 PathProgramCache]: Analyzing trace with hash -190192830, now seen corresponding path program 1 times [2021-06-05 00:20:01,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:20:01,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037686311] [2021-06-05 00:20:01,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:20:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:20:02,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:20:02,129 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:20:02,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037686311] [2021-06-05 00:20:02,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037686311] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:20:02,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:20:02,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:20:02,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450319415] [2021-06-05 00:20:02,134 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:20:02,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:20:02,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:20:02,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:20:02,263 INFO L87 Difference]: Start difference. First operand has 70046 states, 70044 states have (on average 4.422177488435841) internal successors, (309747), 70045 states have internal predecessors, (309747), 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 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:04,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:20:04,239 INFO L93 Difference]: Finished difference Result 105773 states and 460615 transitions. [2021-06-05 00:20:04,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:20:04,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-05 00:20:04,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:20:04,799 INFO L225 Difference]: With dead ends: 105773 [2021-06-05 00:20:04,799 INFO L226 Difference]: Without dead ends: 36336 [2021-06-05 00:20:04,801 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 189.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:20:05,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36336 states. [2021-06-05 00:20:06,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36336 to 36336. [2021-06-05 00:20:06,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36336 states, 36335 states have (on average 4.282454933259943) internal successors, (155603), 36335 states have internal predecessors, (155603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:06,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36336 states to 36336 states and 155603 transitions. [2021-06-05 00:20:06,889 INFO L78 Accepts]: Start accepts. Automaton has 36336 states and 155603 transitions. Word has length 59 [2021-06-05 00:20:06,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:20:06,892 INFO L482 AbstractCegarLoop]: Abstraction has 36336 states and 155603 transitions. [2021-06-05 00:20:06,893 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:06,893 INFO L276 IsEmpty]: Start isEmpty. Operand 36336 states and 155603 transitions. [2021-06-05 00:20:06,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 00:20:06,966 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:20:06,967 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:20:06,967 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 00:20:06,967 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:20:06,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:20:06,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1956318659, now seen corresponding path program 1 times [2021-06-05 00:20:06,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:20:06,968 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66794341] [2021-06-05 00:20:06,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:20:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:20:07,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:20:07,149 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:20:07,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66794341] [2021-06-05 00:20:07,149 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66794341] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:20:07,149 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:20:07,149 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:20:07,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978800880] [2021-06-05 00:20:07,150 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:20:07,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:20:07,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:20:07,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:20:07,152 INFO L87 Difference]: Start difference. First operand 36336 states and 155603 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:07,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:20:07,866 INFO L93 Difference]: Finished difference Result 41696 states and 177036 transitions. [2021-06-05 00:20:07,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:20:07,867 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 00:20:07,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:20:08,176 INFO L225 Difference]: With dead ends: 41696 [2021-06-05 00:20:08,176 INFO L226 Difference]: Without dead ends: 32316 [2021-06-05 00:20:08,177 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 116.6ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 00:20:08,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32316 states. [2021-06-05 00:20:09,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32316 to 32316. [2021-06-05 00:20:09,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32316 states, 32315 states have (on average 4.247779668884419) internal successors, (137267), 32315 states have internal predecessors, (137267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:09,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32316 states to 32316 states and 137267 transitions. [2021-06-05 00:20:09,493 INFO L78 Accepts]: Start accepts. Automaton has 32316 states and 137267 transitions. Word has length 61 [2021-06-05 00:20:09,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:20:09,493 INFO L482 AbstractCegarLoop]: Abstraction has 32316 states and 137267 transitions. [2021-06-05 00:20:09,493 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:09,494 INFO L276 IsEmpty]: Start isEmpty. Operand 32316 states and 137267 transitions. [2021-06-05 00:20:09,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 00:20:09,532 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:20:09,533 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:20:09,533 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 00:20:09,533 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:20:09,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:20:09,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1803510673, now seen corresponding path program 1 times [2021-06-05 00:20:09,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:20:09,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527131748] [2021-06-05 00:20:09,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:20:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:20:09,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:20:09,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:20:09,675 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527131748] [2021-06-05 00:20:09,675 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527131748] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:20:09,675 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:20:09,675 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:20:09,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908352555] [2021-06-05 00:20:09,676 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:20:09,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:20:09,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:20:09,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:20:09,681 INFO L87 Difference]: Start difference. First operand 32316 states and 137267 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:10,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:20:10,364 INFO L93 Difference]: Finished difference Result 36236 states and 152758 transitions. [2021-06-05 00:20:10,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:20:10,365 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 00:20:10,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:20:10,506 INFO L225 Difference]: With dead ends: 36236 [2021-06-05 00:20:10,506 INFO L226 Difference]: Without dead ends: 29376 [2021-06-05 00:20:10,507 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 143.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 00:20:10,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29376 states. [2021-06-05 00:20:11,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29376 to 29376. [2021-06-05 00:20:11,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29376 states, 29375 states have (on average 4.221106382978723) internal successors, (123995), 29375 states have internal predecessors, (123995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:11,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29376 states to 29376 states and 123995 transitions. [2021-06-05 00:20:11,466 INFO L78 Accepts]: Start accepts. Automaton has 29376 states and 123995 transitions. Word has length 61 [2021-06-05 00:20:11,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:20:11,466 INFO L482 AbstractCegarLoop]: Abstraction has 29376 states and 123995 transitions. [2021-06-05 00:20:11,467 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:11,467 INFO L276 IsEmpty]: Start isEmpty. Operand 29376 states and 123995 transitions. [2021-06-05 00:20:11,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-05 00:20:11,504 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:20:11,504 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:20:11,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 00:20:11,504 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:20:11,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:20:11,505 INFO L82 PathProgramCache]: Analyzing trace with hash 2035037616, now seen corresponding path program 1 times [2021-06-05 00:20:11,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:20:11,505 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658189381] [2021-06-05 00:20:11,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:20:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:20:11,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:20:11,601 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:20:11,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658189381] [2021-06-05 00:20:11,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658189381] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:20:11,602 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:20:11,602 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:20:11,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087492176] [2021-06-05 00:20:11,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:20:11,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:20:11,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:20:11,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:20:11,604 INFO L87 Difference]: Start difference. First operand 29376 states and 123995 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:12,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:20:12,240 INFO L93 Difference]: Finished difference Result 32176 states and 134900 transitions. [2021-06-05 00:20:12,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:20:12,242 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-05 00:20:12,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:20:12,349 INFO L225 Difference]: With dead ends: 32176 [2021-06-05 00:20:12,350 INFO L226 Difference]: Without dead ends: 27276 [2021-06-05 00:20:12,350 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 125.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 00:20:12,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27276 states. [2021-06-05 00:20:13,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27276 to 27276. [2021-06-05 00:20:13,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27276 states, 27275 states have (on average 4.2029330889092575) internal successors, (114635), 27275 states have internal predecessors, (114635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:13,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27276 states to 27276 states and 114635 transitions. [2021-06-05 00:20:13,244 INFO L78 Accepts]: Start accepts. Automaton has 27276 states and 114635 transitions. Word has length 63 [2021-06-05 00:20:13,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:20:13,245 INFO L482 AbstractCegarLoop]: Abstraction has 27276 states and 114635 transitions. [2021-06-05 00:20:13,245 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:13,245 INFO L276 IsEmpty]: Start isEmpty. Operand 27276 states and 114635 transitions. [2021-06-05 00:20:13,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-05 00:20:13,289 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:20:13,289 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:20:13,289 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 00:20:13,290 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:20:13,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:20:13,290 INFO L82 PathProgramCache]: Analyzing trace with hash -273533007, now seen corresponding path program 1 times [2021-06-05 00:20:13,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:20:13,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238826098] [2021-06-05 00:20:13,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:20:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:20:13,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:20:13,474 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:20:13,474 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238826098] [2021-06-05 00:20:13,474 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238826098] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:20:13,474 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:20:13,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:20:13,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068995166] [2021-06-05 00:20:13,476 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:20:13,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:20:13,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:20:13,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:20:13,477 INFO L87 Difference]: Start difference. First operand 27276 states and 114635 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:13,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:20:13,911 INFO L93 Difference]: Finished difference Result 37566 states and 157307 transitions. [2021-06-05 00:20:13,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:20:13,912 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-06-05 00:20:13,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:20:13,977 INFO L225 Difference]: With dead ends: 37566 [2021-06-05 00:20:13,977 INFO L226 Difference]: Without dead ends: 18351 [2021-06-05 00:20:13,978 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 167.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:20:14,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18351 states. [2021-06-05 00:20:14,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18351 to 18351. [2021-06-05 00:20:14,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18351 states, 18350 states have (on average 4.132425068119891) internal successors, (75830), 18350 states have internal predecessors, (75830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:14,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18351 states to 18351 states and 75830 transitions. [2021-06-05 00:20:14,744 INFO L78 Accepts]: Start accepts. Automaton has 18351 states and 75830 transitions. Word has length 65 [2021-06-05 00:20:14,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:20:14,748 INFO L482 AbstractCegarLoop]: Abstraction has 18351 states and 75830 transitions. [2021-06-05 00:20:14,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:14,749 INFO L276 IsEmpty]: Start isEmpty. Operand 18351 states and 75830 transitions. [2021-06-05 00:20:14,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 00:20:14,791 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:20:14,791 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:20:14,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 00:20:14,793 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:20:14,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:20:14,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1465781171, now seen corresponding path program 1 times [2021-06-05 00:20:14,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:20:14,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086427287] [2021-06-05 00:20:14,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:20:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:20:14,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:20:14,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:20:14,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086427287] [2021-06-05 00:20:14,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086427287] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:20:14,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:20:14,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:20:14,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473498751] [2021-06-05 00:20:14,968 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:20:14,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:20:14,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:20:14,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:20:14,972 INFO L87 Difference]: Start difference. First operand 18351 states and 75830 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:15,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:20:15,682 INFO L93 Difference]: Finished difference Result 32701 states and 134385 transitions. [2021-06-05 00:20:15,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:20:15,682 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-05 00:20:15,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:20:15,766 INFO L225 Difference]: With dead ends: 32701 [2021-06-05 00:20:15,766 INFO L226 Difference]: Without dead ends: 23901 [2021-06-05 00:20:15,767 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 243.8ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:20:15,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23901 states. [2021-06-05 00:20:16,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23901 to 19951. [2021-06-05 00:20:16,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19951 states, 19950 states have (on average 4.131829573934837) internal successors, (82430), 19950 states have internal predecessors, (82430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:16,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19951 states to 19951 states and 82430 transitions. [2021-06-05 00:20:16,370 INFO L78 Accepts]: Start accepts. Automaton has 19951 states and 82430 transitions. Word has length 66 [2021-06-05 00:20:16,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:20:16,374 INFO L482 AbstractCegarLoop]: Abstraction has 19951 states and 82430 transitions. [2021-06-05 00:20:16,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:16,375 INFO L276 IsEmpty]: Start isEmpty. Operand 19951 states and 82430 transitions. [2021-06-05 00:20:16,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 00:20:16,409 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:20:16,409 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:20:16,409 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 00:20:16,409 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:20:16,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:20:16,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1790309181, now seen corresponding path program 2 times [2021-06-05 00:20:16,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:20:16,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953132151] [2021-06-05 00:20:16,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:20:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:20:16,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:20:16,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:20:16,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953132151] [2021-06-05 00:20:16,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953132151] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:20:16,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:20:16,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:20:16,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705055861] [2021-06-05 00:20:16,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:20:16,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:20:16,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:20:16,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:20:16,541 INFO L87 Difference]: Start difference. First operand 19951 states and 82430 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:17,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:20:17,025 INFO L93 Difference]: Finished difference Result 26671 states and 109066 transitions. [2021-06-05 00:20:17,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:20:17,025 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-05 00:20:17,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:20:17,057 INFO L225 Difference]: With dead ends: 26671 [2021-06-05 00:20:17,057 INFO L226 Difference]: Without dead ends: 12261 [2021-06-05 00:20:17,057 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 142.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:20:17,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12261 states. [2021-06-05 00:20:17,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12261 to 12261. [2021-06-05 00:20:17,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12261 states, 12260 states have (on average 4.001223491027733) internal successors, (49055), 12260 states have internal predecessors, (49055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:17,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12261 states to 12261 states and 49055 transitions. [2021-06-05 00:20:17,332 INFO L78 Accepts]: Start accepts. Automaton has 12261 states and 49055 transitions. Word has length 66 [2021-06-05 00:20:17,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:20:17,332 INFO L482 AbstractCegarLoop]: Abstraction has 12261 states and 49055 transitions. [2021-06-05 00:20:17,332 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:17,333 INFO L276 IsEmpty]: Start isEmpty. Operand 12261 states and 49055 transitions. [2021-06-05 00:20:17,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-05 00:20:17,351 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:20:17,351 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:20:17,351 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 00:20:17,351 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:20:17,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:20:17,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1400802924, now seen corresponding path program 1 times [2021-06-05 00:20:17,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:20:17,352 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829110110] [2021-06-05 00:20:17,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:20:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:20:17,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:20:17,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:20:17,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829110110] [2021-06-05 00:20:17,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829110110] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:20:17,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:20:17,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:20:17,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454463163] [2021-06-05 00:20:17,468 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:20:17,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:20:17,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:20:17,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:20:17,469 INFO L87 Difference]: Start difference. First operand 12261 states and 49055 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:17,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:20:17,672 INFO L93 Difference]: Finished difference Result 17221 states and 68815 transitions. [2021-06-05 00:20:17,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:20:17,673 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-06-05 00:20:17,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:20:17,689 INFO L225 Difference]: With dead ends: 17221 [2021-06-05 00:20:17,689 INFO L226 Difference]: Without dead ends: 6971 [2021-06-05 00:20:17,689 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 120.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:20:17,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6971 states. [2021-06-05 00:20:17,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6971 to 6971. [2021-06-05 00:20:17,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6971 states, 6970 states have (on average 3.9176470588235293) internal successors, (27306), 6970 states have internal predecessors, (27306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:17,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6971 states to 6971 states and 27306 transitions. [2021-06-05 00:20:17,983 INFO L78 Accepts]: Start accepts. Automaton has 6971 states and 27306 transitions. Word has length 69 [2021-06-05 00:20:17,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:20:17,984 INFO L482 AbstractCegarLoop]: Abstraction has 6971 states and 27306 transitions. [2021-06-05 00:20:17,984 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:17,984 INFO L276 IsEmpty]: Start isEmpty. Operand 6971 states and 27306 transitions. [2021-06-05 00:20:17,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 00:20:17,993 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:20:17,993 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:20:17,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 00:20:17,993 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:20:17,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:20:17,994 INFO L82 PathProgramCache]: Analyzing trace with hash 509402872, now seen corresponding path program 1 times [2021-06-05 00:20:17,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:20:17,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389520387] [2021-06-05 00:20:17,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:20:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:20:18,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:20:18,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:20:18,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389520387] [2021-06-05 00:20:18,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389520387] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:20:18,100 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:20:18,100 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:20:18,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573139386] [2021-06-05 00:20:18,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:20:18,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:20:18,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:20:18,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:20:18,101 INFO L87 Difference]: Start difference. First operand 6971 states and 27306 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:18,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:20:18,255 INFO L93 Difference]: Finished difference Result 6331 states and 24714 transitions. [2021-06-05 00:20:18,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:20:18,256 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 70 [2021-06-05 00:20:18,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:20:18,256 INFO L225 Difference]: With dead ends: 6331 [2021-06-05 00:20:18,256 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 00:20:18,256 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 135.5ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:20:18,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 00:20:18,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 00:20:18,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 00:20:18,257 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-06-05 00:20:18,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:20:18,257 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 00:20:18,257 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:20:18,257 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 00:20:18,257 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 00:20:18,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 00:20:18,259 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 00:20:18,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:20:18 BasicIcfg [2021-06-05 00:20:18,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 00:20:18,261 INFO L168 Benchmark]: Toolchain (without parser) took 27916.82 ms. Allocated memory was 364.9 MB in the beginning and 11.3 GB in the end (delta: 10.9 GB). Free memory was 328.0 MB in the beginning and 9.5 GB in the end (delta: -9.1 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.0 GB. [2021-06-05 00:20:18,261 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 364.9 MB. Free memory was 346.1 MB in the beginning and 346.0 MB in the end (delta: 71.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:20:18,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.30 ms. Allocated memory is still 364.9 MB. Free memory was 327.8 MB in the beginning and 326.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:20:18,262 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.61 ms. Allocated memory is still 364.9 MB. Free memory was 326.5 MB in the beginning and 324.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:20:18,262 INFO L168 Benchmark]: Boogie Preprocessor took 35.12 ms. Allocated memory is still 364.9 MB. Free memory was 324.4 MB in the beginning and 322.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:20:18,263 INFO L168 Benchmark]: RCFGBuilder took 530.55 ms. Allocated memory is still 364.9 MB. Free memory was 322.3 MB in the beginning and 295.1 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 00:20:18,263 INFO L168 Benchmark]: TraceAbstraction took 26683.75 ms. Allocated memory was 364.9 MB in the beginning and 11.3 GB in the end (delta: 10.9 GB). Free memory was 294.0 MB in the beginning and 9.5 GB in the end (delta: -9.2 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. [2021-06-05 00:20:18,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 364.9 MB. Free memory was 346.1 MB in the beginning and 346.0 MB in the end (delta: 71.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 607.30 ms. Allocated memory is still 364.9 MB. Free memory was 327.8 MB in the beginning and 326.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.61 ms. Allocated memory is still 364.9 MB. Free memory was 326.5 MB in the beginning and 324.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 35.12 ms. Allocated memory is still 364.9 MB. Free memory was 324.4 MB in the beginning and 322.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 530.55 ms. Allocated memory is still 364.9 MB. Free memory was 322.3 MB in the beginning and 295.1 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 26683.75 ms. Allocated memory was 364.9 MB in the beginning and 11.3 GB in the end (delta: 10.9 GB). Free memory was 294.0 MB in the beginning and 9.5 GB in the end (delta: -9.2 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 134 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26564.8ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 522.5ms, AutomataDifference: 7461.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9757.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1245 SDtfs, 2049 SDslu, 4310 SDs, 0 SdLazy, 297 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 383.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1385.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=70046occurred in iteration=0, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7179.9ms AutomataMinimizationTime, 9 MinimizatonAttempts, 3950 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 37.4ms SsaConstructionTime, 189.5ms SatisfiabilityAnalysisTime, 1215.8ms InterpolantComputationTime, 580 NumberOfCodeBlocks, 580 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 571 ConstructedInterpolants, 0 QuantifiedInterpolants, 2771 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...