/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/thin002_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:27:31,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:27:31,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:27:31,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:27:31,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:27:31,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:27:31,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:27:31,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:27:31,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:27:31,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:27:31,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:27:31,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:27:31,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:27:31,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:27:31,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:27:31,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:27:31,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:27:31,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:27:31,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:27:31,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:27:31,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:27:31,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:27:31,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:27:32,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:27:32,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 06:27:32,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:27:32,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:27:32,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:27:32,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:27:32,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:27:32,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:27:32,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:27:32,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:27:32,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:27:32,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:27:32,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:27:32,024 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 06:27:32,075 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:27:32,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:27:32,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:27:32,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:27:32,080 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:27:32,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:27:32,081 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:27:32,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:27:32,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:27:32,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:27:32,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:27:32,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:27:32,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:27:32,084 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:27:32,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:27:32,084 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:27:32,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:27:32,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:27:32,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:27:32,085 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:27:32,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:27:32,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:27:32,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:27:32,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:27:32,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:27:32,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:27:32,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:27:32,087 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:27:32,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:27:32,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:27:32,087 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:27:32,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:27:32,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:27:32,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:27:32,535 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:27:32,535 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:27:32,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2020-11-12 06:27:32,611 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/938de19cb/6ce22a404a0648bb930b174a96269d43/FLAG6c2485ee0 [2020-11-12 06:27:33,334 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:27:33,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2020-11-12 06:27:33,362 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/938de19cb/6ce22a404a0648bb930b174a96269d43/FLAG6c2485ee0 [2020-11-12 06:27:33,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/938de19cb/6ce22a404a0648bb930b174a96269d43 [2020-11-12 06:27:33,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:27:33,647 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:27:33,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:27:33,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:27:33,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:27:33,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:27:33" (1/1) ... [2020-11-12 06:27:33,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed41e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:33, skipping insertion in model container [2020-11-12 06:27:33,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:27:33" (1/1) ... [2020-11-12 06:27:33,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:27:33,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:27:34,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:27:34,185 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:27:34,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:27:34,358 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:27:34,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:34 WrapperNode [2020-11-12 06:27:34,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:27:34,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:27:34,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:27:34,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:27:34,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:34" (1/1) ... [2020-11-12 06:27:34,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:34" (1/1) ... [2020-11-12 06:27:34,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:27:34,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:27:34,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:27:34,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:27:34,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:34" (1/1) ... [2020-11-12 06:27:34,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:34" (1/1) ... [2020-11-12 06:27:34,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:34" (1/1) ... [2020-11-12 06:27:34,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:34" (1/1) ... [2020-11-12 06:27:34,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:34" (1/1) ... [2020-11-12 06:27:34,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:34" (1/1) ... [2020-11-12 06:27:34,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:34" (1/1) ... [2020-11-12 06:27:34,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:27:34,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:27:34,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:27:34,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:27:34,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:34" (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 06:27:34,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:27:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:27:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:27:34,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:27:34,585 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:27:34,585 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:27:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:27:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:27:34,587 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 06:27:34,587 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 06:27:34,588 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-12 06:27:34,588 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-12 06:27:34,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:27:34,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:27:34,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:27:34,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:27:34,590 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 06:27:35,137 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:27:35,138 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:27:35,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:27:35 BoogieIcfgContainer [2020-11-12 06:27:35,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:27:35,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:27:35,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:27:35,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:27:35,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:27:33" (1/3) ... [2020-11-12 06:27:35,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ddb606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:27:35, skipping insertion in model container [2020-11-12 06:27:35,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:27:34" (2/3) ... [2020-11-12 06:27:35,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ddb606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:27:35, skipping insertion in model container [2020-11-12 06:27:35,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:27:35" (3/3) ... [2020-11-12 06:27:35,151 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.opt.i [2020-11-12 06:27:35,167 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:27:35,167 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:27:35,171 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:27:35,172 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:27:35,223 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,223 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,223 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,223 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,224 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,224 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,224 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,224 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,225 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,225 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,226 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,226 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,227 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,227 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,228 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,228 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,231 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,231 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,231 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,232 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,232 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,233 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,234 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,234 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,234 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,235 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,235 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,235 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,235 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,235 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,236 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,236 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,236 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,236 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,236 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,237 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,237 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,237 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,240 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,240 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,249 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,250 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,252 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,252 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,258 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,258 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,258 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,259 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,262 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,262 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,263 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,263 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:27:35,266 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:27:35,279 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-12 06:27:35,316 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:27:35,316 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:27:35,316 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:27:35,316 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:27:35,316 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:27:35,317 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:27:35,317 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:27:35,317 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:27:35,335 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 105 places, 95 transitions, 210 flow [2020-11-12 06:27:47,526 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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 06:27:50,076 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 2545ms [2020-11-12 06:27:50,257 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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 06:27:50,348 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 73649 states, 68347 states have (on average 1.6256017089265073) internal successors, (111105), 73648 states have internal predecessors, (111105), 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 06:27:50,450 INFO L276 IsEmpty]: Start isEmpty. Operand has 73649 states, 68347 states have (on average 1.6256017089265073) internal successors, (111105), 73648 states have internal predecessors, (111105), 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 06:27:50,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 06:27:50,504 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:27:50,505 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 06:27:50,506 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:27:50,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:27:50,512 INFO L82 PathProgramCache]: Analyzing trace with hash 207288984, now seen corresponding path program 1 times [2020-11-12 06:27:50,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:27:50,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572642280] [2020-11-12 06:27:50,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:27:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:27:50,999 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 06:27:51,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572642280] [2020-11-12 06:27:51,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:27:51,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:27:51,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825885497] [2020-11-12 06:27:51,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:27:51,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:27:51,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:27:51,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:27:51,087 INFO L87 Difference]: Start difference. First operand has 73649 states, 68347 states have (on average 1.6256017089265073) internal successors, (111105), 73648 states have internal predecessors, (111105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.166666666666666) 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 06:27:52,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:27:52,025 INFO L93 Difference]: Finished difference Result 93543 states and 137222 transitions. [2020-11-12 06:27:52,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:27:52,036 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 06:27:52,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:27:52,246 INFO L225 Difference]: With dead ends: 93543 [2020-11-12 06:27:52,247 INFO L226 Difference]: Without dead ends: 25046 [2020-11-12 06:27:52,250 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:27:52,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25046 states. [2020-11-12 06:27:53,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25046 to 25046. [2020-11-12 06:27:53,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25046 states, 23331 states have (on average 2.0264883631220263) internal successors, (47280), 25045 states have internal predecessors, (47280), 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 06:27:53,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25046 states to 25046 states and 47280 transitions. [2020-11-12 06:27:53,871 INFO L78 Accepts]: Start accepts. Automaton has 25046 states and 47280 transitions. Word has length 49 [2020-11-12 06:27:53,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:27:53,873 INFO L481 AbstractCegarLoop]: Abstraction has 25046 states and 47280 transitions. [2020-11-12 06:27:53,873 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 06:27:53,873 INFO L276 IsEmpty]: Start isEmpty. Operand 25046 states and 47280 transitions. [2020-11-12 06:27:53,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 06:27:53,904 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:27:53,904 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 06:27:53,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:27:53,905 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:27:53,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:27:53,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1475547447, now seen corresponding path program 1 times [2020-11-12 06:27:53,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:27:53,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971663159] [2020-11-12 06:27:53,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:27:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:27:54,058 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 06:27:54,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971663159] [2020-11-12 06:27:54,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:27:54,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:27:54,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766082181] [2020-11-12 06:27:54,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:27:54,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:27:54,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:27:54,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:27:54,062 INFO L87 Difference]: Start difference. First operand 25046 states and 47280 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:27:54,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:27:54,595 INFO L93 Difference]: Finished difference Result 27986 states and 60125 transitions. [2020-11-12 06:27:54,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:27:54,596 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-11-12 06:27:54,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:27:54,658 INFO L225 Difference]: With dead ends: 27986 [2020-11-12 06:27:54,658 INFO L226 Difference]: Without dead ends: 18223 [2020-11-12 06:27:54,659 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:27:54,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18223 states. [2020-11-12 06:27:55,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18223 to 18223. [2020-11-12 06:27:55,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18223 states, 16998 states have (on average 2.0587127897399693) internal successors, (34994), 18222 states have internal predecessors, (34994), 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 06:27:55,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18223 states to 18223 states and 34994 transitions. [2020-11-12 06:27:55,252 INFO L78 Accepts]: Start accepts. Automaton has 18223 states and 34994 transitions. Word has length 51 [2020-11-12 06:27:55,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:27:55,253 INFO L481 AbstractCegarLoop]: Abstraction has 18223 states and 34994 transitions. [2020-11-12 06:27:55,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:27:55,253 INFO L276 IsEmpty]: Start isEmpty. Operand 18223 states and 34994 transitions. [2020-11-12 06:27:55,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 06:27:55,275 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:27:55,275 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 06:27:55,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:27:55,276 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:27:55,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:27:55,277 INFO L82 PathProgramCache]: Analyzing trace with hash 172190166, now seen corresponding path program 1 times [2020-11-12 06:27:55,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:27:55,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173635184] [2020-11-12 06:27:55,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:27:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:27:55,661 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 06:27:55,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173635184] [2020-11-12 06:27:55,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:27:55,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:27:55,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407254954] [2020-11-12 06:27:55,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:27:55,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:27:55,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:27:55,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:27:55,666 INFO L87 Difference]: Start difference. First operand 18223 states and 34994 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:27:55,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:27:55,890 INFO L93 Difference]: Finished difference Result 20323 states and 44394 transitions. [2020-11-12 06:27:55,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:27:55,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2020-11-12 06:27:55,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:27:55,932 INFO L225 Difference]: With dead ends: 20323 [2020-11-12 06:27:55,932 INFO L226 Difference]: Without dead ends: 13673 [2020-11-12 06:27:55,933 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:27:56,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13673 states. [2020-11-12 06:27:56,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13673 to 13673. [2020-11-12 06:27:56,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13673 states, 12798 states have (on average 2.058837318330989) internal successors, (26349), 13672 states have internal predecessors, (26349), 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 06:27:56,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13673 states to 13673 states and 26349 transitions. [2020-11-12 06:27:56,286 INFO L78 Accepts]: Start accepts. Automaton has 13673 states and 26349 transitions. Word has length 53 [2020-11-12 06:27:56,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:27:56,287 INFO L481 AbstractCegarLoop]: Abstraction has 13673 states and 26349 transitions. [2020-11-12 06:27:56,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:27:56,287 INFO L276 IsEmpty]: Start isEmpty. Operand 13673 states and 26349 transitions. [2020-11-12 06:27:56,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 06:27:56,301 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:27:56,302 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, 1, 1] [2020-11-12 06:27:56,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:27:56,302 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:27:56,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:27:56,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1705817035, now seen corresponding path program 1 times [2020-11-12 06:27:56,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:27:56,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741670806] [2020-11-12 06:27:56,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:27:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:27:56,427 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 06:27:56,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741670806] [2020-11-12 06:27:56,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:27:56,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:27:56,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548464697] [2020-11-12 06:27:56,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:27:56,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:27:56,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:27:56,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:27:56,430 INFO L87 Difference]: Start difference. First operand 13673 states and 26349 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:27:56,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:27:56,664 INFO L93 Difference]: Finished difference Result 17261 states and 37424 transitions. [2020-11-12 06:27:56,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:27:56,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-12 06:27:56,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:27:56,687 INFO L225 Difference]: With dead ends: 17261 [2020-11-12 06:27:56,687 INFO L226 Difference]: Without dead ends: 8033 [2020-11-12 06:27:56,688 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:27:56,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8033 states. [2020-11-12 06:27:57,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8033 to 8033. [2020-11-12 06:27:57,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8033 states, 7533 states have (on average 2.0829682729324306) internal successors, (15691), 8032 states have internal predecessors, (15691), 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 06:27:57,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8033 states to 8033 states and 15691 transitions. [2020-11-12 06:27:57,036 INFO L78 Accepts]: Start accepts. Automaton has 8033 states and 15691 transitions. Word has length 55 [2020-11-12 06:27:57,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:27:57,036 INFO L481 AbstractCegarLoop]: Abstraction has 8033 states and 15691 transitions. [2020-11-12 06:27:57,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:27:57,038 INFO L276 IsEmpty]: Start isEmpty. Operand 8033 states and 15691 transitions. [2020-11-12 06:27:57,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-12 06:27:57,052 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:27:57,053 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] [2020-11-12 06:27:57,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:27:57,053 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:27:57,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:27:57,054 INFO L82 PathProgramCache]: Analyzing trace with hash 375824576, now seen corresponding path program 1 times [2020-11-12 06:27:57,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:27:57,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640640822] [2020-11-12 06:27:57,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:27:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:27:57,251 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 06:27:57,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640640822] [2020-11-12 06:27:57,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:27:57,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:27:57,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023112490] [2020-11-12 06:27:57,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:27:57,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:27:57,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:27:57,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:27:57,254 INFO L87 Difference]: Start difference. First operand 8033 states and 15691 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:27:57,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:27:57,481 INFO L93 Difference]: Finished difference Result 11653 states and 25295 transitions. [2020-11-12 06:27:57,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:27:57,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2020-11-12 06:27:57,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:27:57,497 INFO L225 Difference]: With dead ends: 11653 [2020-11-12 06:27:57,497 INFO L226 Difference]: Without dead ends: 5848 [2020-11-12 06:27:57,497 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:27:57,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5848 states. [2020-11-12 06:27:57,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5848 to 5848. [2020-11-12 06:27:57,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5848 states, 5448 states have (on average 2.180066079295154) internal successors, (11877), 5847 states have internal predecessors, (11877), 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 06:27:57,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5848 states to 5848 states and 11877 transitions. [2020-11-12 06:27:57,632 INFO L78 Accepts]: Start accepts. Automaton has 5848 states and 11877 transitions. Word has length 58 [2020-11-12 06:27:57,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:27:57,634 INFO L481 AbstractCegarLoop]: Abstraction has 5848 states and 11877 transitions. [2020-11-12 06:27:57,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:27:57,634 INFO L276 IsEmpty]: Start isEmpty. Operand 5848 states and 11877 transitions. [2020-11-12 06:27:57,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 06:27:57,642 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:27:57,643 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 06:27:57,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 06:27:57,643 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:27:57,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:27:57,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1220317126, now seen corresponding path program 1 times [2020-11-12 06:27:57,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:27:57,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876739098] [2020-11-12 06:27:57,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:27:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:27:57,833 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 06:27:57,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876739098] [2020-11-12 06:27:57,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:27:57,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:27:57,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727633581] [2020-11-12 06:27:57,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:27:57,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:27:57,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:27:57,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:27:57,836 INFO L87 Difference]: Start difference. First operand 5848 states and 11877 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 06:27:58,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:27:58,035 INFO L93 Difference]: Finished difference Result 8728 states and 19601 transitions. [2020-11-12 06:27:58,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:27:58,036 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 06:27:58,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:27:58,046 INFO L225 Difference]: With dead ends: 8728 [2020-11-12 06:27:58,047 INFO L226 Difference]: Without dead ends: 4563 [2020-11-12 06:27:58,047 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:27:58,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4563 states. [2020-11-12 06:27:58,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4563 to 4563. [2020-11-12 06:27:58,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4563 states, 4243 states have (on average 2.2213056799434363) internal successors, (9425), 4562 states have internal predecessors, (9425), 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 06:27:58,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4563 states to 4563 states and 9425 transitions. [2020-11-12 06:27:58,147 INFO L78 Accepts]: Start accepts. Automaton has 4563 states and 9425 transitions. Word has length 59 [2020-11-12 06:27:58,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:27:58,147 INFO L481 AbstractCegarLoop]: Abstraction has 4563 states and 9425 transitions. [2020-11-12 06:27:58,147 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 06:27:58,148 INFO L276 IsEmpty]: Start isEmpty. Operand 4563 states and 9425 transitions. [2020-11-12 06:27:58,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-12 06:27:58,154 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:27:58,154 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, 1] [2020-11-12 06:27:58,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 06:27:58,155 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:27:58,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:27:58,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1579380312, now seen corresponding path program 1 times [2020-11-12 06:27:58,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:27:58,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330653489] [2020-11-12 06:27:58,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:27:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:27:58,414 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 06:27:58,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330653489] [2020-11-12 06:27:58,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:27:58,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:27:58,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676083375] [2020-11-12 06:27:58,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:27:58,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:27:58,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:27:58,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:27:58,416 INFO L87 Difference]: Start difference. First operand 4563 states and 9425 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 06:27:58,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:27:58,598 INFO L93 Difference]: Finished difference Result 3283 states and 8145 transitions. [2020-11-12 06:27:58,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:27:58,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2020-11-12 06:27:58,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:27:58,600 INFO L225 Difference]: With dead ends: 3283 [2020-11-12 06:27:58,600 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:27:58,601 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:27:58,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:27:58,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:27:58,602 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 06:27:58,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:27:58,603 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2020-11-12 06:27:58,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:27:58,604 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:27:58,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 06:27:58,604 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:27:58,604 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:27:58,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 06:27:58,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:27:58 BasicIcfg [2020-11-12 06:27:58,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:27:58,613 INFO L168 Benchmark]: Toolchain (without parser) took 24969.91 ms. Allocated memory was 302.0 MB in the beginning and 7.1 GB in the end (delta: 6.8 GB). Free memory was 275.6 MB in the beginning and 6.5 GB in the end (delta: -6.2 GB). Peak memory consumption was 570.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:27:58,614 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 272.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:27:58,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.17 ms. Allocated memory is still 302.0 MB. Free memory was 275.1 MB in the beginning and 243.8 MB in the end (delta: 31.3 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-12 06:27:58,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.78 ms. Allocated memory is still 302.0 MB. Free memory was 243.8 MB in the beginning and 284.4 MB in the end (delta: -40.6 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.0 GB. [2020-11-12 06:27:58,616 INFO L168 Benchmark]: Boogie Preprocessor took 32.71 ms. Allocated memory is still 302.0 MB. Free memory was 284.4 MB in the beginning and 282.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:27:58,617 INFO L168 Benchmark]: RCFGBuilder took 655.09 ms. Allocated memory is still 302.0 MB. Free memory was 282.3 MB in the beginning and 257.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-11-12 06:27:58,618 INFO L168 Benchmark]: TraceAbstraction took 23466.78 ms. Allocated memory was 302.0 MB in the beginning and 7.1 GB in the end (delta: 6.8 GB). Free memory was 257.1 MB in the beginning and 6.5 GB in the end (delta: -6.2 GB). Peak memory consumption was 552.8 MB. Max. memory is 16.0 GB. [2020-11-12 06:27:58,622 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 272.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 708.17 ms. Allocated memory is still 302.0 MB. Free memory was 275.1 MB in the beginning and 243.8 MB in the end (delta: 31.3 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 92.78 ms. Allocated memory is still 302.0 MB. Free memory was 243.8 MB in the beginning and 284.4 MB in the end (delta: -40.6 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.71 ms. Allocated memory is still 302.0 MB. Free memory was 284.4 MB in the beginning and 282.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 655.09 ms. Allocated memory is still 302.0 MB. Free memory was 282.3 MB in the beginning and 257.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 23466.78 ms. Allocated memory was 302.0 MB in the beginning and 7.1 GB in the end (delta: 6.8 GB). Free memory was 257.1 MB in the beginning and 6.5 GB in the end (delta: -6.2 GB). Peak memory consumption was 552.8 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, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 23.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.0s, HoareTripleCheckerStatistics: 726 SDtfs, 957 SDslu, 2482 SDs, 0 SdLazy, 162 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73649occurred 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: 3.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 385 NumberOfCodeBlocks, 385 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 58718 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...