/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:22:56,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:22:56,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:22:56,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:22:56,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:22:56,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:22:56,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:22:56,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:22:56,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:22:56,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:22:56,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:22:56,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:22:56,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:22:56,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:22:56,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:22:56,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:22:56,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:22:56,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:22:56,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:22:56,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:22:56,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:22:56,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:22:56,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:22:56,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:22:56,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 06:22:56,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:22:56,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:22:56,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:22:56,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:22:56,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:22:56,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:22:56,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:22:56,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:22:56,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:22:56,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:22:56,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:22:56,396 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-Delay.epf [2020-11-12 06:22:56,450 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:22:56,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:22:56,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:22:56,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:22:56,455 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:22:56,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:22:56,455 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:22:56,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:22:56,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:22:56,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:22:56,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:22:56,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:22:56,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:22:56,458 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:22:56,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:22:56,458 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:22:56,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:22:56,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:22:56,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:22:56,459 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:22:56,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:22:56,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:22:56,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:22:56,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:22:56,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:22:56,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:22:56,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:22:56,461 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:22:56,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:22:56,462 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:22:56,462 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:22:56,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:22:56,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:22:56,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:22:56,938 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:22:56,939 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:22:56,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-11-12 06:22:57,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbde80f8f/117e1786cc6342f4963baec2c7c9aac8/FLAG6bf0b20a0 [2020-11-12 06:22:57,696 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:22:57,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-11-12 06:22:57,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbde80f8f/117e1786cc6342f4963baec2c7c9aac8/FLAG6bf0b20a0 [2020-11-12 06:22:58,001 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbde80f8f/117e1786cc6342f4963baec2c7c9aac8 [2020-11-12 06:22:58,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:22:58,015 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:22:58,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:22:58,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:22:58,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:22:58,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:22:58" (1/1) ... [2020-11-12 06:22:58,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ffa82e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:58, skipping insertion in model container [2020-11-12 06:22:58,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:22:58" (1/1) ... [2020-11-12 06:22:58,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:22:58,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:22:58,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:22:58,618 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:22:58,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:22:58,821 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:22:58,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:58 WrapperNode [2020-11-12 06:22:58,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:22:58,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:22:58,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:22:58,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:22:58,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:58" (1/1) ... [2020-11-12 06:22:58,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:58" (1/1) ... [2020-11-12 06:22:58,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:22:58,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:22:58,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:22:58,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:22:58,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:58" (1/1) ... [2020-11-12 06:22:58,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:58" (1/1) ... [2020-11-12 06:22:58,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:58" (1/1) ... [2020-11-12 06:22:58,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:58" (1/1) ... [2020-11-12 06:22:58,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:58" (1/1) ... [2020-11-12 06:22:58,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:58" (1/1) ... [2020-11-12 06:22:58,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:58" (1/1) ... [2020-11-12 06:22:58,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:22:58,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:22:58,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:22:58,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:22:58,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:58" (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 [2020-11-12 06:22:58,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:22:58,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:22:58,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:22:58,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:22:58,986 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:22:58,986 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:22:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:22:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:22:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 06:22:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 06:22:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-12 06:22:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-12 06:22:58,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:22:58,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:22:58,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:22:58,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:22:58,990 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 06:22:59,446 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:22:59,446 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:22:59,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:22:59 BoogieIcfgContainer [2020-11-12 06:22:59,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:22:59,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:22:59,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:22:59,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:22:59,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:22:58" (1/3) ... [2020-11-12 06:22:59,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3859624e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:22:59, skipping insertion in model container [2020-11-12 06:22:59,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:22:58" (2/3) ... [2020-11-12 06:22:59,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3859624e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:22:59, skipping insertion in model container [2020-11-12 06:22:59,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:22:59" (3/3) ... [2020-11-12 06:22:59,458 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2020-11-12 06:22:59,475 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:22:59,475 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:22:59,485 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:22:59,486 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:22:59,535 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,536 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,536 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,536 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,536 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,537 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,537 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,538 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,538 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,538 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,539 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,539 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,540 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,540 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,542 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,542 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,543 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,543 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,545 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,545 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,545 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,545 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,545 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,546 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,546 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,546 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,546 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,547 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,547 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,547 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,549 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,550 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,556 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,556 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,556 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,557 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,561 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,561 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,561 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,562 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,565 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,565 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:22:59,568 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:22:59,581 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-12 06:22:59,604 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:22:59,605 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:22:59,605 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:22:59,605 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:22:59,605 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:22:59,605 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:22:59,605 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:22:59,605 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:22:59,618 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 91 transitions, 202 flow [2020-11-12 06:23:09,446 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 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) [2020-11-12 06:23:11,498 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 2041ms [2020-11-12 06:23:11,689 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 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) [2020-11-12 06:23:11,878 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 54313 states, 50656 states have (on average 1.5083307012002527) internal successors, (76406), 54312 states have internal predecessors, (76406), 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) [2020-11-12 06:23:11,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 54313 states, 50656 states have (on average 1.5083307012002527) internal successors, (76406), 54312 states have internal predecessors, (76406), 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) [2020-11-12 06:23:12,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 06:23:12,018 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:12,019 INFO L494 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] [2020-11-12 06:23:12,020 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:12,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:12,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1453792105, now seen corresponding path program 1 times [2020-11-12 06:23:12,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:12,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648847933] [2020-11-12 06:23:12,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:12,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:23:12,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648847933] [2020-11-12 06:23:12,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:12,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:23:12,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887429232] [2020-11-12 06:23:12,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:23:12,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:12,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:23:12,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:23:12,695 INFO L87 Difference]: Start difference. First operand has 54313 states, 50656 states have (on average 1.5083307012002527) internal successors, (76406), 54312 states have internal predecessors, (76406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:23:13,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:13,588 INFO L93 Difference]: Finished difference Result 68929 states and 94802 transitions. [2020-11-12 06:23:13,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:23:13,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-12 06:23:13,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:13,745 INFO L225 Difference]: With dead ends: 68929 [2020-11-12 06:23:13,746 INFO L226 Difference]: Without dead ends: 19561 [2020-11-12 06:23:13,748 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:23:14,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19561 states. [2020-11-12 06:23:14,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19561 to 19561. [2020-11-12 06:23:14,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19561 states, 18301 states have (on average 1.8011037648215944) internal successors, (32962), 19560 states have internal predecessors, (32962), 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) [2020-11-12 06:23:15,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19561 states to 19561 states and 32962 transitions. [2020-11-12 06:23:15,045 INFO L78 Accepts]: Start accepts. Automaton has 19561 states and 32962 transitions. Word has length 47 [2020-11-12 06:23:15,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:15,046 INFO L481 AbstractCegarLoop]: Abstraction has 19561 states and 32962 transitions. [2020-11-12 06:23:15,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:23:15,046 INFO L276 IsEmpty]: Start isEmpty. Operand 19561 states and 32962 transitions. [2020-11-12 06:23:15,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 06:23:15,074 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:15,074 INFO L494 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] [2020-11-12 06:23:15,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:23:15,075 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:15,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:15,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1614803638, now seen corresponding path program 1 times [2020-11-12 06:23:15,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:15,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880870045] [2020-11-12 06:23:15,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:15,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:23:15,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880870045] [2020-11-12 06:23:15,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:15,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:23:15,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206710437] [2020-11-12 06:23:15,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:23:15,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:15,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:23:15,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:23:15,347 INFO L87 Difference]: Start difference. First operand 19561 states and 32962 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:23:15,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:15,651 INFO L93 Difference]: Finished difference Result 21721 states and 41854 transitions. [2020-11-12 06:23:15,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:23:15,652 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2020-11-12 06:23:15,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:15,721 INFO L225 Difference]: With dead ends: 21721 [2020-11-12 06:23:15,721 INFO L226 Difference]: Without dead ends: 14215 [2020-11-12 06:23:15,722 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:23:15,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14215 states. [2020-11-12 06:23:16,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14215 to 14215. [2020-11-12 06:23:16,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14215 states, 13315 states have (on average 1.8241832519714607) internal successors, (24289), 14214 states have internal predecessors, (24289), 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) [2020-11-12 06:23:16,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14215 states to 14215 states and 24289 transitions. [2020-11-12 06:23:16,408 INFO L78 Accepts]: Start accepts. Automaton has 14215 states and 24289 transitions. Word has length 49 [2020-11-12 06:23:16,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:16,410 INFO L481 AbstractCegarLoop]: Abstraction has 14215 states and 24289 transitions. [2020-11-12 06:23:16,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:23:16,410 INFO L276 IsEmpty]: Start isEmpty. Operand 14215 states and 24289 transitions. [2020-11-12 06:23:16,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 06:23:16,433 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:16,433 INFO L494 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] [2020-11-12 06:23:16,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:23:16,433 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:16,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:16,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1054740085, now seen corresponding path program 1 times [2020-11-12 06:23:16,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:16,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870735696] [2020-11-12 06:23:16,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:16,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:23:16,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870735696] [2020-11-12 06:23:16,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:16,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:23:16,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895987680] [2020-11-12 06:23:16,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:23:16,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:16,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:23:16,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:23:16,640 INFO L87 Difference]: Start difference. First operand 14215 states and 24289 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:23:17,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:17,019 INFO L93 Difference]: Finished difference Result 19640 states and 36619 transitions. [2020-11-12 06:23:17,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:23:17,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-11-12 06:23:17,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:17,048 INFO L225 Difference]: With dead ends: 19640 [2020-11-12 06:23:17,049 INFO L226 Difference]: Without dead ends: 9240 [2020-11-12 06:23:17,049 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:23:17,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9240 states. [2020-11-12 06:23:17,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9240 to 9240. [2020-11-12 06:23:17,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9240 states, 8640 states have (on average 1.8758101851851852) internal successors, (16207), 9239 states have internal predecessors, (16207), 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) [2020-11-12 06:23:17,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9240 states to 9240 states and 16207 transitions. [2020-11-12 06:23:17,287 INFO L78 Accepts]: Start accepts. Automaton has 9240 states and 16207 transitions. Word has length 51 [2020-11-12 06:23:17,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:17,287 INFO L481 AbstractCegarLoop]: Abstraction has 9240 states and 16207 transitions. [2020-11-12 06:23:17,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:23:17,288 INFO L276 IsEmpty]: Start isEmpty. Operand 9240 states and 16207 transitions. [2020-11-12 06:23:17,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 06:23:17,302 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:17,302 INFO L494 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] [2020-11-12 06:23:17,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:23:17,302 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:17,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:17,304 INFO L82 PathProgramCache]: Analyzing trace with hash -510481820, now seen corresponding path program 1 times [2020-11-12 06:23:17,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:17,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260028261] [2020-11-12 06:23:17,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:17,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:23:17,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260028261] [2020-11-12 06:23:17,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:17,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:23:17,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327915531] [2020-11-12 06:23:17,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:23:17,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:17,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:23:17,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:23:17,640 INFO L87 Difference]: Start difference. First operand 9240 states and 16207 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:23:17,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:17,955 INFO L93 Difference]: Finished difference Result 12920 states and 24698 transitions. [2020-11-12 06:23:17,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:23:17,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2020-11-12 06:23:17,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:17,973 INFO L225 Difference]: With dead ends: 12920 [2020-11-12 06:23:17,974 INFO L226 Difference]: Without dead ends: 6192 [2020-11-12 06:23:17,974 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:23:18,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6192 states. [2020-11-12 06:23:18,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6192 to 6192. [2020-11-12 06:23:18,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6192 states, 5792 states have (on average 1.905732044198895) internal successors, (11038), 6191 states have internal predecessors, (11038), 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) [2020-11-12 06:23:18,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6192 states to 6192 states and 11038 transitions. [2020-11-12 06:23:18,135 INFO L78 Accepts]: Start accepts. Automaton has 6192 states and 11038 transitions. Word has length 53 [2020-11-12 06:23:18,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:18,136 INFO L481 AbstractCegarLoop]: Abstraction has 6192 states and 11038 transitions. [2020-11-12 06:23:18,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:23:18,136 INFO L276 IsEmpty]: Start isEmpty. Operand 6192 states and 11038 transitions. [2020-11-12 06:23:18,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 06:23:18,147 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:18,147 INFO L494 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] [2020-11-12 06:23:18,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:23:18,148 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:18,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:18,148 INFO L82 PathProgramCache]: Analyzing trace with hash -417078397, now seen corresponding path program 1 times [2020-11-12 06:23:18,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:18,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105038667] [2020-11-12 06:23:18,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:18,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:23:18,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105038667] [2020-11-12 06:23:18,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:18,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:23:18,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088877445] [2020-11-12 06:23:18,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:23:18,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:18,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:23:18,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:23:18,344 INFO L87 Difference]: Start difference. First operand 6192 states and 11038 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:23:18,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:18,553 INFO L93 Difference]: Finished difference Result 7740 states and 13213 transitions. [2020-11-12 06:23:18,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:23:18,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-12 06:23:18,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:18,571 INFO L225 Difference]: With dead ends: 7740 [2020-11-12 06:23:18,571 INFO L226 Difference]: Without dead ends: 6136 [2020-11-12 06:23:18,572 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:23:18,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6136 states. [2020-11-12 06:23:18,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6136 to 6136. [2020-11-12 06:23:18,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6136 states, 5740 states have (on average 1.9033101045296168) internal successors, (10925), 6135 states have internal predecessors, (10925), 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) [2020-11-12 06:23:18,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6136 states to 6136 states and 10925 transitions. [2020-11-12 06:23:18,725 INFO L78 Accepts]: Start accepts. Automaton has 6136 states and 10925 transitions. Word has length 55 [2020-11-12 06:23:18,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:18,726 INFO L481 AbstractCegarLoop]: Abstraction has 6136 states and 10925 transitions. [2020-11-12 06:23:18,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:23:18,726 INFO L276 IsEmpty]: Start isEmpty. Operand 6136 states and 10925 transitions. [2020-11-12 06:23:18,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-12 06:23:18,737 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:18,737 INFO L494 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] [2020-11-12 06:23:18,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 06:23:18,738 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:18,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:18,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1334794895, now seen corresponding path program 1 times [2020-11-12 06:23:18,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:18,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849802672] [2020-11-12 06:23:18,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:18,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:23:18,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849802672] [2020-11-12 06:23:18,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:18,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:23:18,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721254290] [2020-11-12 06:23:18,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:23:18,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:18,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:23:18,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:23:18,997 INFO L87 Difference]: Start difference. First operand 6136 states and 10925 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:23:19,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:19,255 INFO L93 Difference]: Finished difference Result 7252 states and 12275 transitions. [2020-11-12 06:23:19,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:23:19,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2020-11-12 06:23:19,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:19,273 INFO L225 Difference]: With dead ends: 7252 [2020-11-12 06:23:19,274 INFO L226 Difference]: Without dead ends: 5620 [2020-11-12 06:23:19,274 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 06:23:19,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2020-11-12 06:23:19,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 5620. [2020-11-12 06:23:19,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5620 states, 5260 states have (on average 1.888783269961977) internal successors, (9935), 5619 states have internal predecessors, (9935), 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) [2020-11-12 06:23:19,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5620 states to 5620 states and 9935 transitions. [2020-11-12 06:23:19,454 INFO L78 Accepts]: Start accepts. Automaton has 5620 states and 9935 transitions. Word has length 56 [2020-11-12 06:23:19,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:19,454 INFO L481 AbstractCegarLoop]: Abstraction has 5620 states and 9935 transitions. [2020-11-12 06:23:19,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:23:19,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5620 states and 9935 transitions. [2020-11-12 06:23:19,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-12 06:23:19,471 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:19,471 INFO L494 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] [2020-11-12 06:23:19,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 06:23:19,472 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:19,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:19,473 INFO L82 PathProgramCache]: Analyzing trace with hash -387736074, now seen corresponding path program 1 times [2020-11-12 06:23:19,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:19,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133880829] [2020-11-12 06:23:19,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:19,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:23:19,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133880829] [2020-11-12 06:23:19,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:19,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 06:23:19,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663870064] [2020-11-12 06:23:19,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 06:23:19,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:19,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 06:23:19,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 06:23:19,704 INFO L87 Difference]: Start difference. First operand 5620 states and 9935 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:23:19,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:19,920 INFO L93 Difference]: Finished difference Result 5539 states and 9152 transitions. [2020-11-12 06:23:19,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 06:23:19,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2020-11-12 06:23:19,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:19,931 INFO L225 Difference]: With dead ends: 5539 [2020-11-12 06:23:19,932 INFO L226 Difference]: Without dead ends: 3910 [2020-11-12 06:23:19,932 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-12 06:23:19,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3910 states. [2020-11-12 06:23:20,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3910 to 3910. [2020-11-12 06:23:20,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3667 states have (on average 1.854376874829561) internal successors, (6800), 3909 states have internal predecessors, (6800), 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) [2020-11-12 06:23:20,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 6800 transitions. [2020-11-12 06:23:20,036 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 6800 transitions. Word has length 57 [2020-11-12 06:23:20,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:20,036 INFO L481 AbstractCegarLoop]: Abstraction has 3910 states and 6800 transitions. [2020-11-12 06:23:20,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:23:20,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 6800 transitions. [2020-11-12 06:23:20,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 06:23:20,045 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:20,045 INFO L494 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] [2020-11-12 06:23:20,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 06:23:20,046 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:20,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:20,046 INFO L82 PathProgramCache]: Analyzing trace with hash -458114843, now seen corresponding path program 1 times [2020-11-12 06:23:20,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:20,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442473209] [2020-11-12 06:23:20,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:20,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:23:20,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442473209] [2020-11-12 06:23:20,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:20,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:23:20,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708536562] [2020-11-12 06:23:20,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:23:20,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:20,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:23:20,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:23:20,207 INFO L87 Difference]: Start difference. First operand 3910 states and 6800 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 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) [2020-11-12 06:23:20,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:20,350 INFO L93 Difference]: Finished difference Result 7219 states and 13477 transitions. [2020-11-12 06:23:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:23:20,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 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 [2020-11-12 06:23:20,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:20,365 INFO L225 Difference]: With dead ends: 7219 [2020-11-12 06:23:20,365 INFO L226 Difference]: Without dead ends: 4734 [2020-11-12 06:23:20,365 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:23:20,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4734 states. [2020-11-12 06:23:20,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4734 to 3870. [2020-11-12 06:23:20,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3870 states, 3627 states have (on average 1.854976564653984) internal successors, (6728), 3869 states have internal predecessors, (6728), 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) [2020-11-12 06:23:20,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3870 states to 3870 states and 6728 transitions. [2020-11-12 06:23:20,517 INFO L78 Accepts]: Start accepts. Automaton has 3870 states and 6728 transitions. Word has length 59 [2020-11-12 06:23:20,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:20,518 INFO L481 AbstractCegarLoop]: Abstraction has 3870 states and 6728 transitions. [2020-11-12 06:23:20,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 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) [2020-11-12 06:23:20,520 INFO L276 IsEmpty]: Start isEmpty. Operand 3870 states and 6728 transitions. [2020-11-12 06:23:20,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 06:23:20,535 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:20,535 INFO L494 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] [2020-11-12 06:23:20,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 06:23:20,536 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:20,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:20,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1839876887, now seen corresponding path program 1 times [2020-11-12 06:23:20,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:20,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122778340] [2020-11-12 06:23:20,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:20,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:23:20,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122778340] [2020-11-12 06:23:20,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:20,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:23:20,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993371512] [2020-11-12 06:23:20,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:23:20,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:20,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:23:20,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:23:20,670 INFO L87 Difference]: Start difference. First operand 3870 states and 6728 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 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) [2020-11-12 06:23:20,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:20,799 INFO L93 Difference]: Finished difference Result 5163 states and 9836 transitions. [2020-11-12 06:23:20,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:23:20,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 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 [2020-11-12 06:23:20,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:20,807 INFO L225 Difference]: With dead ends: 5163 [2020-11-12 06:23:20,807 INFO L226 Difference]: Without dead ends: 2714 [2020-11-12 06:23:20,808 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:23:20,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2714 states. [2020-11-12 06:23:20,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2714 to 2066. [2020-11-12 06:23:20,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2066 states, 1877 states have (on average 1.9504528502930207) internal successors, (3661), 2065 states have internal predecessors, (3661), 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) [2020-11-12 06:23:20,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 3661 transitions. [2020-11-12 06:23:20,889 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 3661 transitions. Word has length 59 [2020-11-12 06:23:20,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:20,889 INFO L481 AbstractCegarLoop]: Abstraction has 2066 states and 3661 transitions. [2020-11-12 06:23:20,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 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) [2020-11-12 06:23:20,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 3661 transitions. [2020-11-12 06:23:20,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 06:23:20,893 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:23:20,893 INFO L494 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] [2020-11-12 06:23:20,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-12 06:23:20,893 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:23:20,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:23:20,894 INFO L82 PathProgramCache]: Analyzing trace with hash 482116829, now seen corresponding path program 2 times [2020-11-12 06:23:20,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:23:20,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037705212] [2020-11-12 06:23:20,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:23:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:23:21,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:23:21,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037705212] [2020-11-12 06:23:21,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:23:21,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-12 06:23:21,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024060743] [2020-11-12 06:23:21,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-12 06:23:21,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:23:21,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-12 06:23:21,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-12 06:23:21,056 INFO L87 Difference]: Start difference. First operand 2066 states and 3661 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 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) [2020-11-12 06:23:21,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:23:21,192 INFO L93 Difference]: Finished difference Result 500 states and 664 transitions. [2020-11-12 06:23:21,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:23:21,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 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 [2020-11-12 06:23:21,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:23:21,193 INFO L225 Difference]: With dead ends: 500 [2020-11-12 06:23:21,193 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:23:21,193 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-11-12 06:23:21,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:23:21,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:23:21,194 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) [2020-11-12 06:23:21,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:23:21,194 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2020-11-12 06:23:21,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:23:21,194 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:23:21,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 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) [2020-11-12 06:23:21,195 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:23:21,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:23:21,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-12 06:23:21,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:23:21 BasicIcfg [2020-11-12 06:23:21,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:23:21,203 INFO L168 Benchmark]: Toolchain (without parser) took 23192.65 ms. Allocated memory was 302.0 MB in the beginning and 7.3 GB in the end (delta: 7.0 GB). Free memory was 275.1 MB in the beginning and 6.8 GB in the end (delta: -6.5 GB). Peak memory consumption was 481.8 MB. Max. memory is 16.0 GB. [2020-11-12 06:23:21,204 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 271.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:23:21,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 802.66 ms. Allocated memory is still 302.0 MB. Free memory was 274.4 MB in the beginning and 275.7 MB in the end (delta: -1.3 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.0 GB. [2020-11-12 06:23:21,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.91 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 273.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:23:21,212 INFO L168 Benchmark]: Boogie Preprocessor took 29.85 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 272.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:23:21,213 INFO L168 Benchmark]: RCFGBuilder took 543.88 ms. Allocated memory is still 302.0 MB. Free memory was 272.6 MB in the beginning and 248.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:23:21,217 INFO L168 Benchmark]: TraceAbstraction took 21749.43 ms. Allocated memory was 302.0 MB in the beginning and 7.3 GB in the end (delta: 7.0 GB). Free memory was 248.5 MB in the beginning and 6.8 GB in the end (delta: -6.6 GB). Peak memory consumption was 455.0 MB. Max. memory is 16.0 GB. [2020-11-12 06:23:21,225 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 271.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 802.66 ms. Allocated memory is still 302.0 MB. Free memory was 274.4 MB in the beginning and 275.7 MB in the end (delta: -1.3 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.91 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 273.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.85 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 272.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 543.88 ms. Allocated memory is still 302.0 MB. Free memory was 272.6 MB in the beginning and 248.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 21749.43 ms. Allocated memory was 302.0 MB in the beginning and 7.3 GB in the end (delta: 7.0 GB). Free memory was 248.5 MB in the beginning and 6.8 GB in the end (delta: -6.6 GB). Peak memory consumption was 455.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.2s, HoareTripleCheckerStatistics: 876 SDtfs, 1311 SDslu, 3147 SDs, 0 SdLazy, 337 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54313occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 1512 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 545 NumberOfCodeBlocks, 545 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 535 ConstructedInterpolants, 0 QuantifiedInterpolants, 77341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...