/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:25:14,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:25:14,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:25:14,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:25:14,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:25:14,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:25:14,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:25:14,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:25:14,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:25:14,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:25:14,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:25:14,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:25:14,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:25:14,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:25:14,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:25:14,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:25:14,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:25:14,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:25:14,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:25:14,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:25:14,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:25:14,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:25:14,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:25:14,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:25:14,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 23:25:14,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:25:14,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:25:14,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:25:14,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:25:14,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:25:14,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:25:14,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:25:14,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:25:14,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:25:14,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:25:14,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:25:14,643 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.epf [2020-10-21 23:25:14,682 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:25:14,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:25:14,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:25:14,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:25:14,685 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:25:14,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:25:14,686 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:25:14,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:25:14,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:25:14,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:25:14,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:25:14,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:25:14,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:25:14,688 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:25:14,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:25:14,689 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:25:14,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:25:14,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:25:14,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:25:14,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:25:14,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:25:14,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:25:14,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:25:14,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:25:14,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:25:14,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:25:14,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:25:14,691 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:25:14,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:25:15,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:25:15,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:25:15,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:25:15,041 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:25:15,042 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:25:15,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2020-10-21 23:25:15,117 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46fdae504/b20412e4a2084ab2bce7eb3a07a05cfb/FLAG379056b49 [2020-10-21 23:25:15,704 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:25:15,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2020-10-21 23:25:15,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46fdae504/b20412e4a2084ab2bce7eb3a07a05cfb/FLAG379056b49 [2020-10-21 23:25:15,937 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46fdae504/b20412e4a2084ab2bce7eb3a07a05cfb [2020-10-21 23:25:15,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:25:15,954 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:25:15,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:25:15,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:25:15,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:25:15,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:25:15" (1/1) ... [2020-10-21 23:25:15,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31184fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:25:15, skipping insertion in model container [2020-10-21 23:25:15,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:25:15" (1/1) ... [2020-10-21 23:25:15,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:25:16,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:25:16,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:25:16,480 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:25:16,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:25:16,621 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:25:16,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:25:16 WrapperNode [2020-10-21 23:25:16,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:25:16,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:25:16,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:25:16,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:25:16,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:25:16" (1/1) ... [2020-10-21 23:25:16,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:25:16" (1/1) ... [2020-10-21 23:25:16,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:25:16,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:25:16,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:25:16,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:25:16,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:25:16" (1/1) ... [2020-10-21 23:25:16,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:25:16" (1/1) ... [2020-10-21 23:25:16,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:25:16" (1/1) ... [2020-10-21 23:25:16,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:25:16" (1/1) ... [2020-10-21 23:25:16,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:25:16" (1/1) ... [2020-10-21 23:25:16,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:25:16" (1/1) ... [2020-10-21 23:25:16,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:25:16" (1/1) ... [2020-10-21 23:25:16,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:25:16,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:25:16,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:25:16,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:25:16,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:25:16" (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 [2020-10-21 23:25:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 23:25:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:25:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 23:25:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:25:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-10-21 23:25:16,832 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-10-21 23:25:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:25:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:25:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:25:16,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:25:16,837 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:25:17,262 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:25:17,262 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-21 23:25:17,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:25:17 BoogieIcfgContainer [2020-10-21 23:25:17,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:25:17,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:25:17,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:25:17,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:25:17,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:25:15" (1/3) ... [2020-10-21 23:25:17,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cff6003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:25:17, skipping insertion in model container [2020-10-21 23:25:17,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:25:16" (2/3) ... [2020-10-21 23:25:17,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cff6003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:25:17, skipping insertion in model container [2020-10-21 23:25:17,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:25:17" (3/3) ... [2020-10-21 23:25:17,274 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2020-10-21 23:25:17,286 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:25:17,286 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:25:17,293 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 23:25:17,294 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:25:17,322 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,323 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,323 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,323 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,323 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,324 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,324 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,324 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,324 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,325 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,325 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,326 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,326 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,326 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,327 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,327 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,327 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,327 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,328 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,328 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,328 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,328 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,328 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,329 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,329 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,329 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,329 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,329 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,330 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,330 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,330 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,330 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,330 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,331 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,331 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,331 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,335 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,335 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,335 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,336 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,336 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,336 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,336 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,336 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,337 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:25:17,347 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-21 23:25:17,361 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 23:25:17,383 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:25:17,383 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:25:17,384 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:25:17,384 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:25:17,384 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:25:17,384 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:25:17,384 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:25:17,384 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:25:17,400 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:25:17,401 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 103 transitions, 214 flow [2020-10-21 23:25:17,404 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 103 transitions, 214 flow [2020-10-21 23:25:17,405 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 103 transitions, 214 flow [2020-10-21 23:25:17,458 INFO L129 PetriNetUnfolder]: 10/102 cut-off events. [2020-10-21 23:25:17,459 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-21 23:25:17,466 INFO L80 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 102 events. 10/102 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 157 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 58. Up to 3 conditions per place. [2020-10-21 23:25:17,470 INFO L116 LiptonReduction]: Number of co-enabled transitions 1650 [2020-10-21 23:25:19,011 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-10-21 23:25:19,428 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-21 23:25:19,559 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-21 23:25:20,371 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 137 [2020-10-21 23:25:20,680 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-21 23:25:20,686 INFO L131 LiptonReduction]: Checked pairs total: 3209 [2020-10-21 23:25:20,687 INFO L133 LiptonReduction]: Total number of compositions: 90 [2020-10-21 23:25:20,693 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 29 transitions, 66 flow [2020-10-21 23:25:20,705 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 84 states. [2020-10-21 23:25:20,707 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-10-21 23:25:20,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-21 23:25:20,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:25:20,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-21 23:25:20,714 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:25:20,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:25:20,719 INFO L82 PathProgramCache]: Analyzing trace with hash 378015944, now seen corresponding path program 1 times [2020-10-21 23:25:20,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:25:20,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308428195] [2020-10-21 23:25:20,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:25:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:25:20,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:25:20,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308428195] [2020-10-21 23:25:20,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:25:20,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:25:20,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793663488] [2020-10-21 23:25:20,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:25:20,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:25:20,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:25:20,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:25:20,979 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2020-10-21 23:25:21,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:25:21,031 INFO L93 Difference]: Finished difference Result 105 states and 178 transitions. [2020-10-21 23:25:21,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:25:21,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-21 23:25:21,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:25:21,043 INFO L225 Difference]: With dead ends: 105 [2020-10-21 23:25:21,044 INFO L226 Difference]: Without dead ends: 38 [2020-10-21 23:25:21,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:25:21,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-21 23:25:21,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-21 23:25:21,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-21 23:25:21,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2020-10-21 23:25:21,085 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 5 [2020-10-21 23:25:21,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:25:21,085 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2020-10-21 23:25:21,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:25:21,085 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2020-10-21 23:25:21,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 23:25:21,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:25:21,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:25:21,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:25:21,087 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:25:21,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:25:21,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1573707980, now seen corresponding path program 1 times [2020-10-21 23:25:21,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:25:21,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063922853] [2020-10-21 23:25:21,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:25:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:25:21,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:25:21,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063922853] [2020-10-21 23:25:21,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:25:21,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:25:21,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424893232] [2020-10-21 23:25:21,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:25:21,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:25:21,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:25:21,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:25:21,186 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand 5 states. [2020-10-21 23:25:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:25:21,222 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2020-10-21 23:25:21,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:25:21,222 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-21 23:25:21,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:25:21,223 INFO L225 Difference]: With dead ends: 17 [2020-10-21 23:25:21,223 INFO L226 Difference]: Without dead ends: 15 [2020-10-21 23:25:21,224 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:25:21,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-10-21 23:25:21,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-10-21 23:25:21,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-21 23:25:21,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-10-21 23:25:21,227 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 9 [2020-10-21 23:25:21,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:25:21,228 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-10-21 23:25:21,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:25:21,228 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-10-21 23:25:21,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 23:25:21,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:25:21,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:25:21,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:25:21,229 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:25:21,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:25:21,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1335143805, now seen corresponding path program 1 times [2020-10-21 23:25:21,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:25:21,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596065532] [2020-10-21 23:25:21,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:25:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:25:21,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:25:21,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596065532] [2020-10-21 23:25:21,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:25:21,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-21 23:25:21,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124304120] [2020-10-21 23:25:21,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-21 23:25:21,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:25:21,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-21 23:25:21,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:25:21,368 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 7 states. [2020-10-21 23:25:21,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:25:21,490 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-10-21 23:25:21,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-21 23:25:21,491 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-21 23:25:21,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:25:21,492 INFO L225 Difference]: With dead ends: 14 [2020-10-21 23:25:21,492 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 23:25:21,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-21 23:25:21,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 23:25:21,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 23:25:21,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 23:25:21,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 23:25:21,495 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-21 23:25:21,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:25:21,495 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 23:25:21,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-21 23:25:21,495 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 23:25:21,495 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 23:25:21,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:25:21,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:25:21 BasicIcfg [2020-10-21 23:25:21,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:25:21,503 INFO L168 Benchmark]: Toolchain (without parser) took 5553.90 ms. Allocated memory was 147.3 MB in the beginning and 274.7 MB in the end (delta: 127.4 MB). Free memory was 101.7 MB in the beginning and 144.6 MB in the end (delta: -42.8 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2020-10-21 23:25:21,505 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 23:25:21,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 667.42 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 100.9 MB in the beginning and 159.9 MB in the end (delta: -59.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-10-21 23:25:21,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.08 ms. Allocated memory is still 204.5 MB. Free memory was 159.3 MB in the beginning and 157.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:25:21,512 INFO L168 Benchmark]: Boogie Preprocessor took 62.96 ms. Allocated memory is still 204.5 MB. Free memory was 157.3 MB in the beginning and 155.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:25:21,518 INFO L168 Benchmark]: RCFGBuilder took 508.62 ms. Allocated memory is still 204.5 MB. Free memory was 155.3 MB in the beginning and 127.2 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2020-10-21 23:25:21,519 INFO L168 Benchmark]: TraceAbstraction took 4234.68 ms. Allocated memory was 204.5 MB in the beginning and 274.7 MB in the end (delta: 70.3 MB). Free memory was 127.2 MB in the beginning and 144.6 MB in the end (delta: -17.3 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2020-10-21 23:25:21,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 667.42 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 100.9 MB in the beginning and 159.9 MB in the end (delta: -59.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 61.08 ms. Allocated memory is still 204.5 MB. Free memory was 159.3 MB in the beginning and 157.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.96 ms. Allocated memory is still 204.5 MB. Free memory was 157.3 MB in the beginning and 155.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 508.62 ms. Allocated memory is still 204.5 MB. Free memory was 155.3 MB in the beginning and 127.2 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4234.68 ms. Allocated memory was 204.5 MB in the beginning and 274.7 MB in the end (delta: 70.3 MB). Free memory was 127.2 MB in the beginning and 144.6 MB in the end (delta: -17.3 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 909 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 59 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.2s, 97 PlacesBefore, 25 PlacesAfterwards, 103 TransitionsBefore, 29 TransitionsAfterwards, 1650 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 90 TotalNumberOfCompositions, 3209 MoverChecksTotal - PositiveResult [Line: 683]: 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 2 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 34 SDtfs, 34 SDslu, 28 SDs, 0 SdLazy, 46 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 2216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...