/usr/bin/java -Xmx8000000000 -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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:44:54,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:44:54,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:44:54,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:44:54,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:44:54,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:44:54,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:44:54,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:44:54,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:44:54,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:44:54,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:44:54,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:44:54,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:44:54,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:44:54,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:44:54,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:44:54,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:44:54,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:44:54,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:44:54,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:44:55,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:44:55,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:44:55,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:44:55,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:44:55,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 15:44:55,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:44:55,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:44:55,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:44:55,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:44:55,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:44:55,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:44:55,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:44:55,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:44:55,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:44:55,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:44:55,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:44:55,027 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-11-09 15:44:55,055 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:44:55,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:44:55,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:44:55,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:44:55,058 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:44:55,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:44:55,058 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:44:55,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:44:55,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:44:55,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:44:55,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:44:55,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:44:55,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:44:55,060 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:44:55,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:44:55,060 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:44:55,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:44:55,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:44:55,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:44:55,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:44:55,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:44:55,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:44:55,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:44:55,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:44:55,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:44:55,063 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:44:55,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:44:55,063 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:44:55,063 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:44:55,064 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:44:55,064 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:44:55,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:44:55,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:44:55,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:44:55,489 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:44:55,490 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:44:55,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i [2020-11-09 15:44:55,594 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee90e413d/768350bf420142729066c8b2ac50d327/FLAGadf9b3997 [2020-11-09 15:44:56,390 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:44:56,391 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i [2020-11-09 15:44:56,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee90e413d/768350bf420142729066c8b2ac50d327/FLAGadf9b3997 [2020-11-09 15:44:56,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee90e413d/768350bf420142729066c8b2ac50d327 [2020-11-09 15:44:56,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:44:56,632 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:44:56,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:44:56,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:44:56,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:44:56,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:44:56" (1/1) ... [2020-11-09 15:44:56,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31418573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:44:56, skipping insertion in model container [2020-11-09 15:44:56,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:44:56" (1/1) ... [2020-11-09 15:44:56,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:44:56,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:44:57,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:44:57,177 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:44:57,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:44:57,396 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:44:57,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:44:57 WrapperNode [2020-11-09 15:44:57,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:44:57,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:44:57,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:44:57,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:44:57,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:44:57" (1/1) ... [2020-11-09 15:44:57,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:44:57" (1/1) ... [2020-11-09 15:44:57,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:44:57,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:44:57,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:44:57,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:44:57,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:44:57" (1/1) ... [2020-11-09 15:44:57,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:44:57" (1/1) ... [2020-11-09 15:44:57,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:44:57" (1/1) ... [2020-11-09 15:44:57,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:44:57" (1/1) ... [2020-11-09 15:44:57,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:44:57" (1/1) ... [2020-11-09 15:44:57,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:44:57" (1/1) ... [2020-11-09 15:44:57,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:44:57" (1/1) ... [2020-11-09 15:44:57,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:44:57,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:44:57,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:44:57,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:44:57,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:44:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:44:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:44:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:44:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:44:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:44:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:44:57,564 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:44:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:44:57,565 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:44:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:44:57,565 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:44:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:44:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:44:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:44:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:44:57,568 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 15:44:57,988 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:44:57,989 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:44:57,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:44:57 BoogieIcfgContainer [2020-11-09 15:44:57,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:44:57,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:44:57,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:44:57,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:44:57,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:44:56" (1/3) ... [2020-11-09 15:44:57,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a3c9d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:44:57, skipping insertion in model container [2020-11-09 15:44:57,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:44:57" (2/3) ... [2020-11-09 15:44:57,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a3c9d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:44:57, skipping insertion in model container [2020-11-09 15:44:57,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:44:57" (3/3) ... [2020-11-09 15:44:58,000 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.opt.i [2020-11-09 15:44:58,017 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:44:58,017 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:44:58,021 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:44:58,022 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:44:58,060 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,061 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,061 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,061 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,062 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,062 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,062 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,062 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,065 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,065 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,065 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,065 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,066 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,066 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,066 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,068 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,068 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,069 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,069 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,075 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,075 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,083 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,084 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,090 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,090 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,090 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,091 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:44:58,093 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:44:58,106 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 15:44:58,131 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:44:58,132 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:44:58,132 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:44:58,132 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:44:58,132 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:44:58,132 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:44:58,133 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:44:58,133 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:44:58,146 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:44:58,147 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 15:44:58,151 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 15:44:58,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-11-09 15:44:58,202 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-11-09 15:44:58,203 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:44:58,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 15:44:58,227 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 15:45:01,425 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-11-09 15:45:01,713 WARN L194 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-11-09 15:45:01,823 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 15:45:02,077 WARN L194 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-11-09 15:45:02,182 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 15:45:02,328 WARN L194 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-11-09 15:45:02,518 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-11-09 15:45:02,820 INFO L131 LiptonReduction]: Checked pairs total: 2833 [2020-11-09 15:45:02,820 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-11-09 15:45:02,827 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-11-09 15:45:02,875 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 15:45:02,878 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 15:45:02,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 15:45:02,888 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:45:02,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:45:02,889 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:45:02,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:45:02,902 INFO L82 PathProgramCache]: Analyzing trace with hash -618309236, now seen corresponding path program 1 times [2020-11-09 15:45:02,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:45:02,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960753861] [2020-11-09 15:45:02,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:45:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:45:03,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:45:03,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960753861] [2020-11-09 15:45:03,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:45:03,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:45:03,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [319815876] [2020-11-09 15:45:03,209 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:45:03,215 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:45:03,234 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 15:45:03,235 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:45:03,242 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:45:03,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:45:03,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:45:03,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:45:03,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:45:03,272 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-11-09 15:45:03,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:45:03,346 INFO L93 Difference]: Finished difference Result 294 states and 849 transitions. [2020-11-09 15:45:03,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:45:03,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 15:45:03,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:45:03,379 INFO L225 Difference]: With dead ends: 294 [2020-11-09 15:45:03,380 INFO L226 Difference]: Without dead ends: 230 [2020-11-09 15:45:03,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:45:03,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-11-09 15:45:03,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2020-11-09 15:45:03,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-11-09 15:45:03,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 641 transitions. [2020-11-09 15:45:03,498 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 641 transitions. Word has length 8 [2020-11-09 15:45:03,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:45:03,500 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 641 transitions. [2020-11-09 15:45:03,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:45:03,500 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 641 transitions. [2020-11-09 15:45:03,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:45:03,504 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:45:03,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:45:03,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:45:03,504 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:45:03,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:45:03,508 INFO L82 PathProgramCache]: Analyzing trace with hash -2017712009, now seen corresponding path program 1 times [2020-11-09 15:45:03,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:45:03,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676489516] [2020-11-09 15:45:03,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:45:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:45:03,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:45:03,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676489516] [2020-11-09 15:45:03,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:45:03,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:45:03,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1234735428] [2020-11-09 15:45:03,648 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:45:03,649 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:45:03,655 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-11-09 15:45:03,655 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:45:03,688 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:45:03,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:45:03,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:45:03,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:45:03,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:45:03,693 INFO L87 Difference]: Start difference. First operand 230 states and 641 transitions. Second operand 3 states. [2020-11-09 15:45:03,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:45:03,723 INFO L93 Difference]: Finished difference Result 326 states and 861 transitions. [2020-11-09 15:45:03,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:45:03,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-09 15:45:03,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:45:03,727 INFO L225 Difference]: With dead ends: 326 [2020-11-09 15:45:03,727 INFO L226 Difference]: Without dead ends: 254 [2020-11-09 15:45:03,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:45:03,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-11-09 15:45:03,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 218. [2020-11-09 15:45:03,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-09 15:45:03,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 576 transitions. [2020-11-09 15:45:03,770 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 576 transitions. Word has length 9 [2020-11-09 15:45:03,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:45:03,771 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 576 transitions. [2020-11-09 15:45:03,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:45:03,772 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 576 transitions. [2020-11-09 15:45:03,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:45:03,773 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:45:03,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:45:03,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:45:03,774 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:45:03,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:45:03,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1987739380, now seen corresponding path program 1 times [2020-11-09 15:45:03,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:45:03,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596658669] [2020-11-09 15:45:03,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:45:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:45:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:45:03,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596658669] [2020-11-09 15:45:03,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:45:03,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:45:03,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2085652338] [2020-11-09 15:45:03,873 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:45:03,874 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:45:03,876 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-11-09 15:45:03,884 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:45:03,888 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:45:03,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:45:03,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:45:03,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:45:03,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:45:03,890 INFO L87 Difference]: Start difference. First operand 218 states and 576 transitions. Second operand 3 states. [2020-11-09 15:45:03,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:45:03,898 INFO L93 Difference]: Finished difference Result 194 states and 494 transitions. [2020-11-09 15:45:03,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:45:03,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-09 15:45:03,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:45:03,900 INFO L225 Difference]: With dead ends: 194 [2020-11-09 15:45:03,901 INFO L226 Difference]: Without dead ends: 170 [2020-11-09 15:45:03,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:45:03,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-11-09 15:45:03,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-11-09 15:45:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-11-09 15:45:03,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 440 transitions. [2020-11-09 15:45:03,916 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 440 transitions. Word has length 9 [2020-11-09 15:45:03,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:45:03,916 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 440 transitions. [2020-11-09 15:45:03,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:45:03,917 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 440 transitions. [2020-11-09 15:45:03,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:45:03,922 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:45:03,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:45:03,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:45:03,922 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:45:03,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:45:03,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1991682187, now seen corresponding path program 1 times [2020-11-09 15:45:03,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:45:03,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013352426] [2020-11-09 15:45:03,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:45:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:45:03,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:45:03,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013352426] [2020-11-09 15:45:03,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:45:03,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:45:03,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [743004115] [2020-11-09 15:45:03,975 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:45:03,977 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:45:03,979 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-11-09 15:45:03,979 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:45:03,985 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:45:03,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:45:03,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:45:03,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:45:03,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:45:03,986 INFO L87 Difference]: Start difference. First operand 170 states and 440 transitions. Second operand 4 states. [2020-11-09 15:45:04,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:45:04,016 INFO L93 Difference]: Finished difference Result 218 states and 556 transitions. [2020-11-09 15:45:04,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:45:04,016 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 15:45:04,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:45:04,018 INFO L225 Difference]: With dead ends: 218 [2020-11-09 15:45:04,018 INFO L226 Difference]: Without dead ends: 146 [2020-11-09 15:45:04,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:45:04,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-09 15:45:04,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-11-09 15:45:04,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-09 15:45:04,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-11-09 15:45:04,026 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 11 [2020-11-09 15:45:04,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:45:04,026 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-11-09 15:45:04,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:45:04,026 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-11-09 15:45:04,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:45:04,027 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:45:04,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:45:04,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:45:04,028 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:45:04,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:45:04,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1991064667, now seen corresponding path program 2 times [2020-11-09 15:45:04,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:45:04,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510909618] [2020-11-09 15:45:04,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:45:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:45:04,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:45:04,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510909618] [2020-11-09 15:45:04,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:45:04,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:45:04,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [57144012] [2020-11-09 15:45:04,069 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:45:04,070 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:45:04,073 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-11-09 15:45:04,073 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:45:04,122 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:45:04,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:45:04,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:45:04,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:45:04,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:45:04,124 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-11-09 15:45:04,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:45:04,132 INFO L93 Difference]: Finished difference Result 144 states and 355 transitions. [2020-11-09 15:45:04,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:45:04,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-09 15:45:04,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:45:04,134 INFO L225 Difference]: With dead ends: 144 [2020-11-09 15:45:04,134 INFO L226 Difference]: Without dead ends: 144 [2020-11-09 15:45:04,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:45:04,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-11-09 15:45:04,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-11-09 15:45:04,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-09 15:45:04,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions. [2020-11-09 15:45:04,140 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 11 [2020-11-09 15:45:04,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:45:04,141 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 355 transitions. [2020-11-09 15:45:04,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:45:04,141 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-11-09 15:45:04,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:45:04,142 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:45:04,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:45:04,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:45:04,143 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:45:04,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:45:04,143 INFO L82 PathProgramCache]: Analyzing trace with hash 659418087, now seen corresponding path program 1 times [2020-11-09 15:45:04,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:45:04,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862978894] [2020-11-09 15:45:04,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:45:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:45:04,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:45:04,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862978894] [2020-11-09 15:45:04,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:45:04,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:45:04,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [806332444] [2020-11-09 15:45:04,215 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:45:04,219 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:45:04,226 INFO L252 McrAutomatonBuilder]: Finished intersection with 39 states and 71 transitions. [2020-11-09 15:45:04,226 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:45:04,242 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 15:45:04,243 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 15:45:04,258 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 15:45:04,259 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 15:45:04,275 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 15:45:04,276 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 15:45:04,284 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 15:45:04,284 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 15:45:04,307 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 15:45:04,308 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 15:45:04,325 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 15:45:04,326 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 15:45:04,341 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 15:45:04,341 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 15:45:04,415 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3699#(not (= 3 ~__unbuffered_cnt~0))] [2020-11-09 15:45:04,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:45:04,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:45:04,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:45:04,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:45:04,417 INFO L87 Difference]: Start difference. First operand 144 states and 355 transitions. Second operand 5 states. [2020-11-09 15:45:04,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:45:04,468 INFO L93 Difference]: Finished difference Result 137 states and 312 transitions. [2020-11-09 15:45:04,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:45:04,469 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 15:45:04,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:45:04,470 INFO L225 Difference]: With dead ends: 137 [2020-11-09 15:45:04,470 INFO L226 Difference]: Without dead ends: 97 [2020-11-09 15:45:04,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:45:04,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-11-09 15:45:04,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-11-09 15:45:04,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-09 15:45:04,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-11-09 15:45:04,476 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 12 [2020-11-09 15:45:04,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:45:04,476 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-11-09 15:45:04,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:45:04,477 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-11-09 15:45:04,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:45:04,478 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:45:04,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:45:04,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:45:04,478 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:45:04,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:45:04,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1390045438, now seen corresponding path program 1 times [2020-11-09 15:45:04,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:45:04,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064363863] [2020-11-09 15:45:04,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:45:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:45:04,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:45:04,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064363863] [2020-11-09 15:45:04,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:45:04,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:45:04,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1113525415] [2020-11-09 15:45:04,510 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:45:04,512 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:45:04,515 INFO L252 McrAutomatonBuilder]: Finished intersection with 25 states and 32 transitions. [2020-11-09 15:45:04,515 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:45:04,518 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:45:04,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:45:04,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:45:04,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:45:04,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:45:04,520 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 3 states. [2020-11-09 15:45:04,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:45:04,530 INFO L93 Difference]: Finished difference Result 115 states and 230 transitions. [2020-11-09 15:45:04,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:45:04,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-11-09 15:45:04,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:45:04,532 INFO L225 Difference]: With dead ends: 115 [2020-11-09 15:45:04,532 INFO L226 Difference]: Without dead ends: 98 [2020-11-09 15:45:04,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:45:04,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-11-09 15:45:04,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2020-11-09 15:45:04,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-11-09 15:45:04,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 193 transitions. [2020-11-09 15:45:04,536 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 193 transitions. Word has length 14 [2020-11-09 15:45:04,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:45:04,537 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 193 transitions. [2020-11-09 15:45:04,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:45:04,537 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 193 transitions. [2020-11-09 15:45:04,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 15:45:04,538 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:45:04,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:45:04,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 15:45:04,538 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:45:04,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:45:04,539 INFO L82 PathProgramCache]: Analyzing trace with hash 836357957, now seen corresponding path program 1 times [2020-11-09 15:45:04,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:45:04,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868588678] [2020-11-09 15:45:04,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:45:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:45:04,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:45:04,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868588678] [2020-11-09 15:45:04,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:45:04,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:45:04,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [751018019] [2020-11-09 15:45:04,608 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:45:04,610 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:45:04,615 INFO L252 McrAutomatonBuilder]: Finished intersection with 36 states and 54 transitions. [2020-11-09 15:45:04,616 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:45:04,622 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-09 15:45:04,622 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-09 15:45:04,774 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:45:04,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 15:45:04,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:45:04,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 15:45:04,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 15:45:04,776 INFO L87 Difference]: Start difference. First operand 96 states and 193 transitions. Second operand 6 states. [2020-11-09 15:45:04,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:45:04,857 INFO L93 Difference]: Finished difference Result 92 states and 183 transitions. [2020-11-09 15:45:04,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 15:45:04,857 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-09 15:45:04,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:45:04,858 INFO L225 Difference]: With dead ends: 92 [2020-11-09 15:45:04,858 INFO L226 Difference]: Without dead ends: 36 [2020-11-09 15:45:04,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-11-09 15:45:04,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-09 15:45:04,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-09 15:45:04,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-09 15:45:04,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-11-09 15:45:04,862 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-11-09 15:45:04,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:45:04,863 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-11-09 15:45:04,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 15:45:04,863 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-11-09 15:45:04,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 15:45:04,864 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:45:04,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:45:04,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 15:45:04,864 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:45:04,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:45:04,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1235317196, now seen corresponding path program 1 times [2020-11-09 15:45:04,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:45:04,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640090478] [2020-11-09 15:45:04,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:45:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:45:04,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:45:04,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640090478] [2020-11-09 15:45:04,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:45:04,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:45:04,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2072423327] [2020-11-09 15:45:04,927 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:45:04,932 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:45:04,943 INFO L252 McrAutomatonBuilder]: Finished intersection with 54 states and 89 transitions. [2020-11-09 15:45:04,943 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:45:04,968 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:45:04,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:45:04,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:45:04,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:45:04,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:45:04,969 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-11-09 15:45:04,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:45:04,985 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-11-09 15:45:04,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:45:04,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 15:45:04,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:45:04,986 INFO L225 Difference]: With dead ends: 35 [2020-11-09 15:45:04,986 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:45:04,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:45:04,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:45:04,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:45:04,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:45:04,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:45:04,987 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 15:45:04,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:45:04,987 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:45:04,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:45:04,988 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:45:04,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:45:04,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 15:45:04,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:45:04 BasicIcfg [2020-11-09 15:45:04,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:45:04,994 INFO L168 Benchmark]: Toolchain (without parser) took 8367.93 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 128.8 MB in the beginning and 170.2 MB in the end (delta: -41.4 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. [2020-11-09 15:45:04,995 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 151.0 MB. Free memory was 122.9 MB in the beginning and 122.9 MB in the end (delta: 71.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:45:04,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.32 ms. Allocated memory is still 151.0 MB. Free memory was 128.2 MB in the beginning and 115.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 8.0 GB. [2020-11-09 15:45:04,997 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.57 ms. Allocated memory is still 151.0 MB. Free memory was 115.1 MB in the beginning and 113.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:45:04,997 INFO L168 Benchmark]: Boogie Preprocessor took 29.43 ms. Allocated memory is still 151.0 MB. Free memory was 113.0 MB in the beginning and 111.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:45:04,998 INFO L168 Benchmark]: RCFGBuilder took 513.53 ms. Allocated memory is still 151.0 MB. Free memory was 111.7 MB in the beginning and 90.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:45:04,999 INFO L168 Benchmark]: TraceAbstraction took 6999.37 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 89.7 MB in the beginning and 170.2 MB in the end (delta: -80.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:45:05,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 151.0 MB. Free memory was 122.9 MB in the beginning and 122.9 MB in the end (delta: 71.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 765.32 ms. Allocated memory is still 151.0 MB. Free memory was 128.2 MB in the beginning and 115.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 47.57 ms. Allocated memory is still 151.0 MB. Free memory was 115.1 MB in the beginning and 113.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.43 ms. Allocated memory is still 151.0 MB. Free memory was 113.0 MB in the beginning and 111.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 513.53 ms. Allocated memory is still 151.0 MB. Free memory was 111.7 MB in the beginning and 90.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6999.37 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 89.7 MB in the beginning and 170.2 MB in the end (delta: -80.6 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 771 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 49 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.6s, 85 PlacesBefore, 31 PlacesAfterwards, 78 TransitionsBefore, 21 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 3 ChoiceCompositions, 71 TotalNumberOfCompositions, 2833 MoverChecksTotal - 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 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 165 SDtfs, 112 SDslu, 143 SDs, 0 SdLazy, 74 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 74 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 38 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 2637 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...