/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-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:09:27,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:09:27,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:09:27,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:09:27,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:09:27,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:09:27,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:09:27,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:09:27,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:09:27,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:09:27,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:09:27,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:09:27,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:09:27,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:09:27,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:09:27,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:09:27,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:09:27,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:09:27,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:09:27,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:09:27,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:09:27,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:09:27,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:09:27,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:09:27,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 17:09:27,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 17:09:27,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 17:09:27,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 17:09:27,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 17:09:27,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 17:09:27,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:09:27,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:09:27,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:09:27,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:09:27,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:09:27,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:09:27,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:09:27,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:09:27,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:09:27,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:09:27,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:09:27,640 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-SP.epf [2020-11-09 17:09:27,697 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:09:27,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:09:27,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:09:27,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:09:27,701 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:09:27,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:09:27,701 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:09:27,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:09:27,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:09:27,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:09:27,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:09:27,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:09:27,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:09:27,704 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:09:27,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:09:27,704 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:09:27,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:09:27,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:09:27,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:09:27,705 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:09:27,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:09:27,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:09:27,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:09:27,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:09:27,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:09:27,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:09:27,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:09:27,707 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:09:27,707 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:09:27,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:09:27,707 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:09:28,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:09:28,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:09:28,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:09:28,118 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:09:28,118 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:09:28,119 INFO L432 ainManager$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 17:09:28,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abbbb04c0/e39b6cf6133d497f932e5d4cfe62b1bc/FLAG8963451e4 [2020-11-09 17:09:28,794 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:09:28,796 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2020-11-09 17:09:28,838 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abbbb04c0/e39b6cf6133d497f932e5d4cfe62b1bc/FLAG8963451e4 [2020-11-09 17:09:29,062 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abbbb04c0/e39b6cf6133d497f932e5d4cfe62b1bc [2020-11-09 17:09:29,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:09:29,074 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:09:29,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:09:29,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:09:29,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:09:29,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:09:29" (1/1) ... [2020-11-09 17:09:29,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37565b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:29, skipping insertion in model container [2020-11-09 17:09:29,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:09:29" (1/1) ... [2020-11-09 17:09:29,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:09:29,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:09:29,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:09:29,547 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:09:29,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:09:29,800 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:09:29,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:29 WrapperNode [2020-11-09 17:09:29,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:09:29,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:09:29,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:09:29,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:09:29,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:29" (1/1) ... [2020-11-09 17:09:29,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:29" (1/1) ... [2020-11-09 17:09:29,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:09:29,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:09:29,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:09:29,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:09:29,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:29" (1/1) ... [2020-11-09 17:09:29,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:29" (1/1) ... [2020-11-09 17:09:29,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:29" (1/1) ... [2020-11-09 17:09:29,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:29" (1/1) ... [2020-11-09 17:09:29,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:29" (1/1) ... [2020-11-09 17:09:29,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:29" (1/1) ... [2020-11-09 17:09:29,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:29" (1/1) ... [2020-11-09 17:09:29,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:09:29,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:09:29,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:09:29,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:09:29,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:29" (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 17:09:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:09:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:09:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:09:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:09:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:09:30,042 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:09:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:09:30,043 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:09:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:09:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:09:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:09:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:09:30,046 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 17:09:30,509 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:09:30,509 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:09:30,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:09:30 BoogieIcfgContainer [2020-11-09 17:09:30,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:09:30,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:09:30,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:09:30,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:09:30,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:09:29" (1/3) ... [2020-11-09 17:09:30,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4541bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:09:30, skipping insertion in model container [2020-11-09 17:09:30,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:29" (2/3) ... [2020-11-09 17:09:30,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4541bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:09:30, skipping insertion in model container [2020-11-09 17:09:30,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:09:30" (3/3) ... [2020-11-09 17:09:30,520 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.oepc.i [2020-11-09 17:09:30,536 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:09:30,536 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:09:30,540 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:09:30,541 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:09:30,579 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,579 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,579 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,580 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,580 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,580 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,580 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,581 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,581 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,582 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,582 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,582 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,583 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,583 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,583 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,583 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,584 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,584 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,584 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,584 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,585 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,585 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,585 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,585 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,588 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,588 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,596 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,596 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,596 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,597 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:30,601 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:09:30,613 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-09 17:09:30,635 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:09:30,635 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:09:30,635 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:09:30,635 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:09:30,635 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:09:30,636 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:09:30,636 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:09:30,636 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:09:30,647 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:09:30,648 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-09 17:09:30,651 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-09 17:09:30,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-11-09 17:09:30,698 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-11-09 17:09:30,698 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:09:30,702 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 17:09:30,705 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-11-09 17:09:33,357 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-11-09 17:09:33,550 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-11-09 17:09:33,991 WARN L194 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:09:34,314 WARN L194 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:09:34,424 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:09:34,469 INFO L131 LiptonReduction]: Checked pairs total: 1892 [2020-11-09 17:09:34,469 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-11-09 17:09:34,476 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-11-09 17:09:34,489 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-11-09 17:09:34,492 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-11-09 17:09:34,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-09 17:09:34,497 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:09:34,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-09 17:09:34,498 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:09:34,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:09:34,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1281927427, now seen corresponding path program 1 times [2020-11-09 17:09:34,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:09:34,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785967440] [2020-11-09 17:09:34,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:09:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:09:34,717 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 17:09:34,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785967440] [2020-11-09 17:09:34,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:09:34,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:09:34,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1403538871] [2020-11-09 17:09:34,720 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:09:34,725 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:09:34,739 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-11-09 17:09:34,739 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:09:34,745 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:09:34,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 17:09:34,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:09:34,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 17:09:34,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:09:34,769 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-11-09 17:09:34,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:09:34,786 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-11-09 17:09:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 17:09:34,788 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-11-09 17:09:34,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:09:34,797 INFO L225 Difference]: With dead ends: 90 [2020-11-09 17:09:34,797 INFO L226 Difference]: Without dead ends: 74 [2020-11-09 17:09:34,798 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 17:09:34,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-09 17:09:34,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-11-09 17:09:34,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-09 17:09:34,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-11-09 17:09:34,841 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-11-09 17:09:34,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:09:34,842 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-11-09 17:09:34,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 17:09:34,842 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-11-09 17:09:34,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-09 17:09:34,843 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:09:34,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:09:34,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:09:34,844 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:09:34,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:09:34,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1085050971, now seen corresponding path program 1 times [2020-11-09 17:09:34,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:09:34,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528561429] [2020-11-09 17:09:34,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:09:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:09:35,014 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 17:09:35,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528561429] [2020-11-09 17:09:35,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:09:35,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:09:35,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [38650622] [2020-11-09 17:09:35,016 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:09:35,017 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:09:35,018 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-11-09 17:09:35,018 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:09:35,018 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:09:35,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:09:35,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:09:35,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:09:35,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:09:35,021 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 5 states. [2020-11-09 17:09:35,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:09:35,094 INFO L93 Difference]: Finished difference Result 82 states and 166 transitions. [2020-11-09 17:09:35,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:09:35,094 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-11-09 17:09:35,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:09:35,096 INFO L225 Difference]: With dead ends: 82 [2020-11-09 17:09:35,096 INFO L226 Difference]: Without dead ends: 66 [2020-11-09 17:09:35,097 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 17:09:35,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-09 17:09:35,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-11-09 17:09:35,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-09 17:09:35,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 138 transitions. [2020-11-09 17:09:35,107 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 138 transitions. Word has length 7 [2020-11-09 17:09:35,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:09:35,107 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 138 transitions. [2020-11-09 17:09:35,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:09:35,108 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 138 transitions. [2020-11-09 17:09:35,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:09:35,108 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:09:35,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:09:35,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:09:35,109 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:09:35,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:09:35,110 INFO L82 PathProgramCache]: Analyzing trace with hash 722349434, now seen corresponding path program 1 times [2020-11-09 17:09:35,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:09:35,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919432458] [2020-11-09 17:09:35,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:09:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:09:35,199 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 17:09:35,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919432458] [2020-11-09 17:09:35,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:09:35,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:09:35,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1895622902] [2020-11-09 17:09:35,201 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:09:35,202 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:09:35,208 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 10 transitions. [2020-11-09 17:09:35,208 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:09:35,237 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:09:35,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:09:35,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:09:35,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:09:35,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:09:35,241 INFO L87 Difference]: Start difference. First operand 66 states and 138 transitions. Second operand 5 states. [2020-11-09 17:09:35,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:09:35,317 INFO L93 Difference]: Finished difference Result 78 states and 155 transitions. [2020-11-09 17:09:35,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:09:35,318 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-11-09 17:09:35,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:09:35,319 INFO L225 Difference]: With dead ends: 78 [2020-11-09 17:09:35,319 INFO L226 Difference]: Without dead ends: 42 [2020-11-09 17:09:35,320 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 17:09:35,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-09 17:09:35,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-11-09 17:09:35,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-09 17:09:35,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2020-11-09 17:09:35,326 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 8 [2020-11-09 17:09:35,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:09:35,327 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2020-11-09 17:09:35,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:09:35,327 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2020-11-09 17:09:35,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:09:35,328 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:09:35,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:09:35,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:09:35,329 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:09:35,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:09:35,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1631439828, now seen corresponding path program 1 times [2020-11-09 17:09:35,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:09:35,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195344023] [2020-11-09 17:09:35,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:09:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:09:35,452 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 17:09:35,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195344023] [2020-11-09 17:09:35,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:09:35,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:09:35,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1769922179] [2020-11-09 17:09:35,454 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:09:35,455 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:09:35,457 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 24 transitions. [2020-11-09 17:09:35,457 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:09:35,489 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:09:35,542 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:09:35,557 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:09:35,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:09:35,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:09:35,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:09:35,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:09:35,559 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand 4 states. [2020-11-09 17:09:35,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:09:35,587 INFO L93 Difference]: Finished difference Result 43 states and 68 transitions. [2020-11-09 17:09:35,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:09:35,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-09 17:09:35,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:09:35,589 INFO L225 Difference]: With dead ends: 43 [2020-11-09 17:09:35,590 INFO L226 Difference]: Without dead ends: 33 [2020-11-09 17:09:35,590 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 17:09:35,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-09 17:09:35,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-09 17:09:35,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-09 17:09:35,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-11-09 17:09:35,594 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 10 [2020-11-09 17:09:35,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:09:35,594 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-11-09 17:09:35,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:09:35,595 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-11-09 17:09:35,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:09:35,595 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:09:35,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:09:35,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:09:35,596 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:09:35,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:09:35,597 INFO L82 PathProgramCache]: Analyzing trace with hash 215135871, now seen corresponding path program 1 times [2020-11-09 17:09:35,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:09:35,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971043889] [2020-11-09 17:09:35,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:09:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:09:35,653 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 17:09:35,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971043889] [2020-11-09 17:09:35,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:09:35,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:09:35,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [767185424] [2020-11-09 17:09:35,655 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:09:35,656 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:09:35,657 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 27 transitions. [2020-11-09 17:09:35,658 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:09:35,697 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1008#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:09:35,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 17:09:35,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:09:35,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 17:09:35,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 17:09:35,699 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 6 states. [2020-11-09 17:09:35,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:09:35,736 INFO L93 Difference]: Finished difference Result 28 states and 39 transitions. [2020-11-09 17:09:35,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:09:35,737 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-09 17:09:35,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:09:35,737 INFO L225 Difference]: With dead ends: 28 [2020-11-09 17:09:35,737 INFO L226 Difference]: Without dead ends: 23 [2020-11-09 17:09:35,738 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 17:09:35,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-09 17:09:35,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-11-09 17:09:35,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-09 17:09:35,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2020-11-09 17:09:35,741 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 11 [2020-11-09 17:09:35,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:09:35,741 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2020-11-09 17:09:35,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 17:09:35,741 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-11-09 17:09:35,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:09:35,742 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:09:35,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:09:35,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:09:35,743 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:09:35,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:09:35,743 INFO L82 PathProgramCache]: Analyzing trace with hash 536770965, now seen corresponding path program 1 times [2020-11-09 17:09:35,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:09:35,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670351888] [2020-11-09 17:09:35,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:09:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:09:35,816 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 17:09:35,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670351888] [2020-11-09 17:09:35,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:09:35,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:09:35,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1767902231] [2020-11-09 17:09:35,817 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:09:35,818 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:09:35,820 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 29 transitions. [2020-11-09 17:09:35,821 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:09:35,845 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:09:35,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:09:35,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:09:35,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:09:35,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:09:35,847 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand 5 states. [2020-11-09 17:09:35,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:09:35,875 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. [2020-11-09 17:09:35,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:09:35,876 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 17:09:35,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:09:35,876 INFO L225 Difference]: With dead ends: 22 [2020-11-09 17:09:35,876 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:09:35,877 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 17:09:35,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:09:35,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:09:35,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:09:35,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:09:35,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-11-09 17:09:35,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:09:35,878 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:09:35,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:09:35,878 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:09:35,878 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:09:35,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:09:35,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:09:35 BasicIcfg [2020-11-09 17:09:35,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:09:35,884 INFO L168 Benchmark]: Toolchain (without parser) took 6814.72 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 133.3 MB in the beginning and 74.8 MB in the end (delta: 58.5 MB). Peak memory consumption was 93.4 MB. Max. memory is 8.0 GB. [2020-11-09 17:09:35,884 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 151.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:09:35,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.48 ms. Allocated memory is still 151.0 MB. Free memory was 132.6 MB in the beginning and 113.7 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 8.0 GB. [2020-11-09 17:09:35,886 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.21 ms. Allocated memory is still 151.0 MB. Free memory was 113.7 MB in the beginning and 111.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:09:35,887 INFO L168 Benchmark]: Boogie Preprocessor took 54.80 ms. Allocated memory is still 151.0 MB. Free memory was 111.7 MB in the beginning and 110.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:09:35,888 INFO L168 Benchmark]: RCFGBuilder took 565.08 ms. Allocated memory is still 151.0 MB. Free memory was 110.5 MB in the beginning and 91.0 MB in the end (delta: 19.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:09:35,888 INFO L168 Benchmark]: TraceAbstraction took 5368.78 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 90.5 MB in the beginning and 74.8 MB in the end (delta: 15.8 MB). Peak memory consumption was 51.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:09:35,892 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 151.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 723.48 ms. Allocated memory is still 151.0 MB. Free memory was 132.6 MB in the beginning and 113.7 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 84.21 ms. Allocated memory is still 151.0 MB. Free memory was 113.7 MB in the beginning and 111.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 54.80 ms. Allocated memory is still 151.0 MB. Free memory was 111.7 MB in the beginning and 110.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 565.08 ms. Allocated memory is still 151.0 MB. Free memory was 110.5 MB in the beginning and 91.0 MB in the end (delta: 19.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5368.78 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 90.5 MB in the beginning and 74.8 MB in the end (delta: 15.8 MB). Peak memory consumption was 51.9 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: 5.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, 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...