/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/safe022_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:40:55,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:40:55,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:40:55,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:40:55,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:40:55,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:40:55,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:40:55,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:40:55,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:40:55,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:40:55,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:40:55,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:40:55,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:40:55,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:40:55,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:40:55,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:40:55,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:40:55,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:40:55,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:40:55,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:40:55,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:40:55,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:40:55,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:40:55,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:40:55,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 15:40:55,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 15:40:55,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 15:40:55,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 15:40:55,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 15:40:55,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 15:40:55,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:40:55,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:40:55,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:40:55,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:40:55,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:40:55,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:40:55,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:40:55,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:40:55,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:40:55,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:40:55,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:40:55,761 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 15:40:55,820 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:40:55,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:40:55,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:40:55,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:40:55,825 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:40:55,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:40:55,825 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:40:55,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:40:55,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:40:55,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:40:55,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:40:55,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:40:55,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:40:55,828 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:40:55,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:40:55,828 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:40:55,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:40:55,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:40:55,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:40:55,829 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:40:55,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:40:55,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:40:55,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:40:55,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:40:55,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:40:55,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:40:55,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:40:55,831 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:40:55,831 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:40:55,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:40:55,832 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:40:56,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:40:56,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:40:56,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:40:56,361 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:40:56,362 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:40:56,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2020-11-09 15:40:56,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/141c3b48c/612e8c02f1f94cc2ae5c5cce6edc3a58/FLAGfbb9720a2 [2020-11-09 15:40:57,228 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:40:57,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2020-11-09 15:40:57,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/141c3b48c/612e8c02f1f94cc2ae5c5cce6edc3a58/FLAGfbb9720a2 [2020-11-09 15:40:57,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/141c3b48c/612e8c02f1f94cc2ae5c5cce6edc3a58 [2020-11-09 15:40:57,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:40:57,509 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:40:57,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:40:57,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:40:57,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:40:57,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:40:57" (1/1) ... [2020-11-09 15:40:57,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa68ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:57, skipping insertion in model container [2020-11-09 15:40:57,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:40:57" (1/1) ... [2020-11-09 15:40:57,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:40:57,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:40:57,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:40:57,954 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:40:58,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:40:58,180 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:40:58,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:58 WrapperNode [2020-11-09 15:40:58,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:40:58,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:40:58,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:40:58,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:40:58,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:58" (1/1) ... [2020-11-09 15:40:58,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:58" (1/1) ... [2020-11-09 15:40:58,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:40:58,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:40:58,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:40:58,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:40:58,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:58" (1/1) ... [2020-11-09 15:40:58,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:58" (1/1) ... [2020-11-09 15:40:58,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:58" (1/1) ... [2020-11-09 15:40:58,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:58" (1/1) ... [2020-11-09 15:40:58,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:58" (1/1) ... [2020-11-09 15:40:58,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:58" (1/1) ... [2020-11-09 15:40:58,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:58" (1/1) ... [2020-11-09 15:40:58,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:40:58,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:40:58,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:40:58,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:40:58,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:40:58,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:40:58,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:40:58,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:40:58,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:40:58,427 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:40:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:40:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:40:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:40:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:40:58,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:40:58,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:40:58,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:40:58,432 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 15:40:58,973 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:40:58,974 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:40:58,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:40:58 BoogieIcfgContainer [2020-11-09 15:40:58,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:40:58,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:40:58,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:40:58,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:40:58,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:40:57" (1/3) ... [2020-11-09 15:40:58,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d926002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:40:58, skipping insertion in model container [2020-11-09 15:40:58,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:58" (2/3) ... [2020-11-09 15:40:58,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d926002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:40:58, skipping insertion in model container [2020-11-09 15:40:58,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:40:58" (3/3) ... [2020-11-09 15:40:58,987 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.oepc.i [2020-11-09 15:40:59,002 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:40:59,003 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:40:59,006 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:40:59,007 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:40:59,052 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,052 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,052 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,053 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,053 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,053 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,053 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,053 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,055 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,055 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,056 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,056 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,057 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,057 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,057 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,058 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,058 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,058 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,058 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,058 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,063 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,064 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,065 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,065 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,072 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,073 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:59,079 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:40:59,095 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-09 15:40:59,130 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:40:59,130 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:40:59,131 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:40:59,132 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:40:59,132 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:40:59,132 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:40:59,132 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:40:59,132 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:40:59,147 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:40:59,148 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-09 15:40:59,152 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-09 15:40:59,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-11-09 15:40:59,222 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-11-09 15:40:59,223 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:40:59,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-11-09 15:40:59,233 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-11-09 15:41:01,894 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-11-09 15:41:02,088 WARN L194 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-11-09 15:41:02,515 WARN L194 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 15:41:02,639 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 15:41:02,858 WARN L194 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 15:41:02,976 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 15:41:03,017 INFO L131 LiptonReduction]: Checked pairs total: 1892 [2020-11-09 15:41:03,017 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-11-09 15:41:03,025 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-11-09 15:41:03,039 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-11-09 15:41:03,041 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-11-09 15:41:03,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-09 15:41:03,047 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:03,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-09 15:41:03,049 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:03,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:03,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1281927427, now seen corresponding path program 1 times [2020-11-09 15:41:03,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:03,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197881869] [2020-11-09 15:41:03,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:03,245 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 15:41:03,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197881869] [2020-11-09 15:41:03,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:03,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:41:03,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1148304728] [2020-11-09 15:41:03,249 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:03,251 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:03,264 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-11-09 15:41:03,265 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:03,271 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:41:03,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 15:41:03,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:03,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 15:41:03,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 15:41:03,297 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-11-09 15:41:03,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:03,322 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-11-09 15:41:03,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 15:41:03,323 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-11-09 15:41:03,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:03,335 INFO L225 Difference]: With dead ends: 90 [2020-11-09 15:41:03,335 INFO L226 Difference]: Without dead ends: 74 [2020-11-09 15:41:03,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 15:41:03,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-09 15:41:03,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-11-09 15:41:03,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-09 15:41:03,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-11-09 15:41:03,403 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-11-09 15:41:03,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:03,403 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-11-09 15:41:03,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 15:41:03,403 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-11-09 15:41:03,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-09 15:41:03,404 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:03,404 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:41:03,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:41:03,405 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:03,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:03,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1085050971, now seen corresponding path program 1 times [2020-11-09 15:41:03,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:03,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636135671] [2020-11-09 15:41:03,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:03,563 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 15:41:03,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636135671] [2020-11-09 15:41:03,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:03,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:41:03,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [701047958] [2020-11-09 15:41:03,565 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:03,567 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:03,569 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-11-09 15:41:03,569 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:03,570 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:41:03,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:41:03,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:03,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:41:03,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:41:03,573 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 5 states. [2020-11-09 15:41:03,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:03,669 INFO L93 Difference]: Finished difference Result 82 states and 166 transitions. [2020-11-09 15:41:03,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:41:03,672 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-11-09 15:41:03,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:03,673 INFO L225 Difference]: With dead ends: 82 [2020-11-09 15:41:03,673 INFO L226 Difference]: Without dead ends: 66 [2020-11-09 15:41:03,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:41:03,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-09 15:41:03,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-11-09 15:41:03,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-09 15:41:03,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 138 transitions. [2020-11-09 15:41:03,692 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 138 transitions. Word has length 7 [2020-11-09 15:41:03,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:03,693 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 138 transitions. [2020-11-09 15:41:03,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:41:03,694 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 138 transitions. [2020-11-09 15:41:03,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 15:41:03,696 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:03,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:41:03,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:41:03,697 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:03,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:03,703 INFO L82 PathProgramCache]: Analyzing trace with hash 722349434, now seen corresponding path program 1 times [2020-11-09 15:41:03,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:03,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36248693] [2020-11-09 15:41:03,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:03,851 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 15:41:03,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36248693] [2020-11-09 15:41:03,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:03,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:41:03,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1808081952] [2020-11-09 15:41:03,853 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:03,854 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:03,855 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 10 transitions. [2020-11-09 15:41:03,855 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:03,880 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:41:03,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:41:03,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:03,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:41:03,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:41:03,884 INFO L87 Difference]: Start difference. First operand 66 states and 138 transitions. Second operand 5 states. [2020-11-09 15:41:03,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:03,950 INFO L93 Difference]: Finished difference Result 78 states and 155 transitions. [2020-11-09 15:41:03,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 15:41:03,952 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-11-09 15:41:03,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:03,953 INFO L225 Difference]: With dead ends: 78 [2020-11-09 15:41:03,953 INFO L226 Difference]: Without dead ends: 42 [2020-11-09 15:41:03,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 15:41:03,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-09 15:41:03,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-11-09 15:41:03,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-09 15:41:03,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2020-11-09 15:41:03,965 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 8 [2020-11-09 15:41:03,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:03,965 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2020-11-09 15:41:03,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:41:03,966 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2020-11-09 15:41:03,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:41:03,966 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:03,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:41:03,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:41:03,967 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:03,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:03,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1631439828, now seen corresponding path program 1 times [2020-11-09 15:41:03,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:03,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807696052] [2020-11-09 15:41:03,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:04,050 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 15:41:04,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807696052] [2020-11-09 15:41:04,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:04,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:41:04,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [711883873] [2020-11-09 15:41:04,051 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:04,052 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:04,056 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 24 transitions. [2020-11-09 15:41:04,056 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:04,081 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:41:04,167 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:41:04,217 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:41:04,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:41:04,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:04,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:41:04,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:41:04,220 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand 4 states. [2020-11-09 15:41:04,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:04,253 INFO L93 Difference]: Finished difference Result 43 states and 68 transitions. [2020-11-09 15:41:04,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:41:04,254 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-09 15:41:04,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:04,255 INFO L225 Difference]: With dead ends: 43 [2020-11-09 15:41:04,255 INFO L226 Difference]: Without dead ends: 33 [2020-11-09 15:41:04,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 2 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 15:41:04,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-09 15:41:04,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-09 15:41:04,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-09 15:41:04,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-11-09 15:41:04,265 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 10 [2020-11-09 15:41:04,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:04,267 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-11-09 15:41:04,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:41:04,267 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-11-09 15:41:04,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:41:04,273 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:04,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:41:04,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:41:04,274 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:04,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:04,274 INFO L82 PathProgramCache]: Analyzing trace with hash 215135871, now seen corresponding path program 1 times [2020-11-09 15:41:04,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:04,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391976716] [2020-11-09 15:41:04,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:04,411 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 15:41:04,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391976716] [2020-11-09 15:41:04,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:04,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:41:04,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1545474246] [2020-11-09 15:41:04,413 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:04,414 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:04,416 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 27 transitions. [2020-11-09 15:41:04,418 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:04,463 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1008#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 15:41:04,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 15:41:04,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:04,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 15:41:04,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 15:41:04,465 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 6 states. [2020-11-09 15:41:04,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:04,502 INFO L93 Difference]: Finished difference Result 28 states and 39 transitions. [2020-11-09 15:41:04,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 15:41:04,503 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-09 15:41:04,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:04,503 INFO L225 Difference]: With dead ends: 28 [2020-11-09 15:41:04,503 INFO L226 Difference]: Without dead ends: 23 [2020-11-09 15:41:04,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:41:04,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-09 15:41:04,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-11-09 15:41:04,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-09 15:41:04,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2020-11-09 15:41:04,507 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 11 [2020-11-09 15:41:04,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:04,507 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2020-11-09 15:41:04,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 15:41:04,507 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-11-09 15:41:04,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:41:04,508 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:41:04,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:41:04,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:41:04,508 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:41:04,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:41:04,509 INFO L82 PathProgramCache]: Analyzing trace with hash 536770965, now seen corresponding path program 1 times [2020-11-09 15:41:04,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:41:04,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158498887] [2020-11-09 15:41:04,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:41:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:41:04,567 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 15:41:04,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158498887] [2020-11-09 15:41:04,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:41:04,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:41:04,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1154715376] [2020-11-09 15:41:04,568 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:41:04,569 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:41:04,571 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 29 transitions. [2020-11-09 15:41:04,571 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:41:04,591 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:41:04,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:41:04,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:41:04,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:41:04,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:41:04,592 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand 5 states. [2020-11-09 15:41:04,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:41:04,621 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. [2020-11-09 15:41:04,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:41:04,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 15:41:04,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:41:04,621 INFO L225 Difference]: With dead ends: 22 [2020-11-09 15:41:04,622 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:41:04,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:41:04,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:41:04,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:41:04,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:41:04,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:41:04,623 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-11-09 15:41:04,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:41:04,623 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:41:04,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:41:04,623 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:41:04,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:41:04,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:41:04,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:41:04 BasicIcfg [2020-11-09 15:41:04,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:41:04,629 INFO L168 Benchmark]: Toolchain (without parser) took 7124.69 ms. Allocated memory was 155.2 MB in the beginning and 191.9 MB in the end (delta: 36.7 MB). Free memory was 129.0 MB in the beginning and 129.9 MB in the end (delta: -821.1 kB). Peak memory consumption was 36.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:41:04,629 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 155.2 MB. Free memory is still 129.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:41:04,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.30 ms. Allocated memory is still 155.2 MB. Free memory was 128.5 MB in the beginning and 130.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. [2020-11-09 15:41:04,631 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.97 ms. Allocated memory is still 155.2 MB. Free memory was 130.5 MB in the beginning and 129.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:41:04,632 INFO L168 Benchmark]: Boogie Preprocessor took 62.79 ms. Allocated memory is still 155.2 MB. Free memory was 129.0 MB in the beginning and 127.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:41:04,633 INFO L168 Benchmark]: RCFGBuilder took 640.88 ms. Allocated memory is still 155.2 MB. Free memory was 127.4 MB in the beginning and 107.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-09 15:41:04,633 INFO L168 Benchmark]: TraceAbstraction took 5648.65 ms. Allocated memory was 155.2 MB in the beginning and 191.9 MB in the end (delta: 36.7 MB). Free memory was 107.5 MB in the beginning and 129.9 MB in the end (delta: -22.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 8.0 GB. [2020-11-09 15:41:04,637 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 155.2 MB. Free memory is still 129.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 668.30 ms. Allocated memory is still 155.2 MB. Free memory was 128.5 MB in the beginning and 130.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 86.97 ms. Allocated memory is still 155.2 MB. Free memory was 130.5 MB in the beginning and 129.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.79 ms. Allocated memory is still 155.2 MB. Free memory was 129.0 MB in the beginning and 127.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 640.88 ms. Allocated memory is still 155.2 MB. Free memory was 127.4 MB in the beginning and 107.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5648.65 ms. Allocated memory was 155.2 MB in the beginning and 191.9 MB in the end (delta: 36.7 MB). Free memory was 107.5 MB in the beginning and 129.9 MB in the end (delta: -22.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 450 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 22 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.8s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 1892 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 84 SDtfs, 67 SDslu, 119 SDs, 0 SdLazy, 70 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 1497 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...