/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:51:50,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:51:50,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:51:50,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:51:50,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:51:50,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:51:50,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:51:50,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:51:50,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:51:50,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:51:50,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:51:50,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:51:50,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:51:50,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:51:50,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:51:50,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:51:50,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:51:50,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:51:50,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:51:50,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:51:50,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:51:50,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:51:50,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:51:50,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:51:50,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 14:51:50,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 14:51:50,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 14:51:50,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 14:51:50,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 14:51:50,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 14:51:50,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:51:50,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:51:50,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:51:50,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:51:50,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:51:50,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:51:50,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:51:50,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:51:50,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:51:50,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:51:50,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:51:50,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-01-20 14:51:50,753 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:51:50,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:51:50,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:51:50,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:51:50,755 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:51:50,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:51:50,755 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:51:50,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:51:50,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:51:50,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:51:50,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:51:50,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:51:50,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:51:50,757 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:51:50,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:51:50,757 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:51:50,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:51:50,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:51:50,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:51:50,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:51:50,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:51:50,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:51:50,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:51:50,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:51:50,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:51:50,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:51:50,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:51:50,760 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:51:50,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:51:50,760 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:51:50,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:51:51,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:51:51,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:51:51,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:51:51,135 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:51:51,136 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:51:51,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_power.oepc.i [2021-01-20 14:51:51,209 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a67eabc/9a1b327589f8449797e257c47304143b/FLAGc6d20b669 [2021-01-20 14:51:51,993 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:51:51,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_power.oepc.i [2021-01-20 14:51:52,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a67eabc/9a1b327589f8449797e257c47304143b/FLAGc6d20b669 [2021-01-20 14:51:52,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a67eabc/9a1b327589f8449797e257c47304143b [2021-01-20 14:51:52,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:51:52,215 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:51:52,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:51:52,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:51:52,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:51:52,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:51:52" (1/1) ... [2021-01-20 14:51:52,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2538b734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:52, skipping insertion in model container [2021-01-20 14:51:52,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:51:52" (1/1) ... [2021-01-20 14:51:52,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:51:52,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:51:52,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:51:52,703 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:51:52,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:51:52,838 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:51:52,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:52 WrapperNode [2021-01-20 14:51:52,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:51:52,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:51:52,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:51:52,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:51:52,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:52" (1/1) ... [2021-01-20 14:51:52,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:52" (1/1) ... [2021-01-20 14:51:52,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:51:52,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:51:52,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:51:52,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:51:52,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:52" (1/1) ... [2021-01-20 14:51:52,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:52" (1/1) ... [2021-01-20 14:51:52,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:52" (1/1) ... [2021-01-20 14:51:52,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:52" (1/1) ... [2021-01-20 14:51:52,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:52" (1/1) ... [2021-01-20 14:51:52,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:52" (1/1) ... [2021-01-20 14:51:52,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:52" (1/1) ... [2021-01-20 14:51:52,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:51:52,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:51:52,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:51:52,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:51:52,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:52" (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 [2021-01-20 14:51:53,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:51:53,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:51:53,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:51:53,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:51:53,066 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:51:53,067 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:51:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:51:53,067 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:51:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:51:53,067 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:51:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:51:53,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:51:53,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:51:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:51:53,069 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 14:51:53,461 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:51:53,462 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:51:53,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:51:53 BoogieIcfgContainer [2021-01-20 14:51:53,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:51:53,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:51:53,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:51:53,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:51:53,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:51:52" (1/3) ... [2021-01-20 14:51:53,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637a7cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:51:53, skipping insertion in model container [2021-01-20 14:51:53,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:52" (2/3) ... [2021-01-20 14:51:53,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637a7cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:51:53, skipping insertion in model container [2021-01-20 14:51:53,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:51:53" (3/3) ... [2021-01-20 14:51:53,473 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_power.oepc.i [2021-01-20 14:51:53,489 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:51:53,490 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:51:53,494 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:51:53,495 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:51:53,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,530 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,531 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,531 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,531 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,531 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,532 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,532 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,532 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,533 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,533 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,534 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,534 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,535 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,535 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,536 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,536 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,536 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,536 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,537 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,537 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,537 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,537 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,537 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,537 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,538 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,538 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,538 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,538 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,541 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,541 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,541 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,542 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,549 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,549 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,549 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,550 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,556 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,556 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,556 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,556 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:53,559 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:51:53,572 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 14:51:53,594 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:51:53,594 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:51:53,595 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:51:53,595 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:51:53,595 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:51:53,595 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:51:53,595 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:51:53,595 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:51:53,607 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2021-01-20 14:51:54,517 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:51:54,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:51:54,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-20 14:51:54,616 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:51:54,617 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:51:54,617 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:51:54,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:51:54,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1869165386, now seen corresponding path program 1 times [2021-01-20 14:51:54,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:51:54,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262986465] [2021-01-20 14:51:54,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:51:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:51:55,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:51:55,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262986465] [2021-01-20 14:51:55,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:51:55,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:51:55,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057236430] [2021-01-20 14:51:55,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:51:55,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:51:55,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:51:55,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:51:55,288 INFO L87 Difference]: Start difference. First operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:51:55,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:51:55,670 INFO L93 Difference]: Finished difference Result 9342 states and 31814 transitions. [2021-01-20 14:51:55,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:51:55,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-01-20 14:51:55,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:51:55,733 INFO L225 Difference]: With dead ends: 9342 [2021-01-20 14:51:55,733 INFO L226 Difference]: Without dead ends: 4558 [2021-01-20 14:51:55,735 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:51:55,735 INFO L78 Accepts]: Start accepts. Automaton has 4558 states. Word has length 43 [2021-01-20 14:51:55,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:51:55,737 INFO L481 AbstractCegarLoop]: Abstraction has 4558 states. [2021-01-20 14:51:55,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:51:55,737 INFO L276 IsEmpty]: Start isEmpty. Operand 4558 states. [2021-01-20 14:51:55,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 14:51:55,753 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:51:55,754 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:51:55,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:51:55,754 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:51:55,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:51:55,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1028386504, now seen corresponding path program 1 times [2021-01-20 14:51:55,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:51:55,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129197428] [2021-01-20 14:51:55,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:51:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:51:56,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:51:56,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129197428] [2021-01-20 14:51:56,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:51:56,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:51:56,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567385942] [2021-01-20 14:51:56,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:51:56,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:51:56,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:51:56,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:51:56,062 INFO L87 Difference]: Start difference. First operand 4558 states. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:51:56,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:51:56,268 INFO L93 Difference]: Finished difference Result 3802 states and 12186 transitions. [2021-01-20 14:51:56,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:51:56,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-01-20 14:51:56,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:51:56,291 INFO L225 Difference]: With dead ends: 3802 [2021-01-20 14:51:56,291 INFO L226 Difference]: Without dead ends: 2686 [2021-01-20 14:51:56,292 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-20 14:51:56,292 INFO L78 Accepts]: Start accepts. Automaton has 2686 states. Word has length 47 [2021-01-20 14:51:56,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:51:56,293 INFO L481 AbstractCegarLoop]: Abstraction has 2686 states. [2021-01-20 14:51:56,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:51:56,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states. [2021-01-20 14:51:56,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 14:51:56,303 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:51:56,303 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:51:56,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:51:56,303 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:51:56,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:51:56,304 INFO L82 PathProgramCache]: Analyzing trace with hash 708225082, now seen corresponding path program 1 times [2021-01-20 14:51:56,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:51:56,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407045350] [2021-01-20 14:51:56,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:51:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:51:56,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:51:56,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407045350] [2021-01-20 14:51:56,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:51:56,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 14:51:56,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560291604] [2021-01-20 14:51:56,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 14:51:56,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:51:56,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 14:51:56,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 14:51:56,534 INFO L87 Difference]: Start difference. First operand 2686 states. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:51:56,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:51:56,759 INFO L93 Difference]: Finished difference Result 1822 states and 5502 transitions. [2021-01-20 14:51:56,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 14:51:56,760 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-20 14:51:56,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:51:56,770 INFO L225 Difference]: With dead ends: 1822 [2021-01-20 14:51:56,770 INFO L226 Difference]: Without dead ends: 1282 [2021-01-20 14:51:56,771 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-20 14:51:56,771 INFO L78 Accepts]: Start accepts. Automaton has 1282 states. Word has length 51 [2021-01-20 14:51:56,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:51:56,773 INFO L481 AbstractCegarLoop]: Abstraction has 1282 states. [2021-01-20 14:51:56,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:51:56,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states. [2021-01-20 14:51:56,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 14:51:56,778 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:51:56,778 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:51:56,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:51:56,779 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:51:56,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:51:56,783 INFO L82 PathProgramCache]: Analyzing trace with hash 139688856, now seen corresponding path program 1 times [2021-01-20 14:51:56,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:51:56,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081289017] [2021-01-20 14:51:56,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:51:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:51:56,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:51:56,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081289017] [2021-01-20 14:51:56,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:51:56,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:51:56,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614363945] [2021-01-20 14:51:56,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:51:56,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:51:56,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:51:56,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:51:56,958 INFO L87 Difference]: Start difference. First operand 1282 states. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:51:57,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:51:57,065 INFO L93 Difference]: Finished difference Result 1805 states and 5308 transitions. [2021-01-20 14:51:57,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:51:57,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-20 14:51:57,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:51:57,073 INFO L225 Difference]: With dead ends: 1805 [2021-01-20 14:51:57,073 INFO L226 Difference]: Without dead ends: 912 [2021-01-20 14:51:57,074 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:51:57,074 INFO L78 Accepts]: Start accepts. Automaton has 912 states. Word has length 55 [2021-01-20 14:51:57,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:51:57,074 INFO L481 AbstractCegarLoop]: Abstraction has 912 states. [2021-01-20 14:51:57,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:51:57,075 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states. [2021-01-20 14:51:57,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 14:51:57,078 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:51:57,078 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:51:57,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:51:57,079 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:51:57,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:51:57,079 INFO L82 PathProgramCache]: Analyzing trace with hash -621080086, now seen corresponding path program 2 times [2021-01-20 14:51:57,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:51:57,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220763203] [2021-01-20 14:51:57,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:51:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:51:57,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:51:57,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220763203] [2021-01-20 14:51:57,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:51:57,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:51:57,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985399366] [2021-01-20 14:51:57,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:51:57,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:51:57,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:51:57,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:51:57,192 INFO L87 Difference]: Start difference. First operand 912 states. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:51:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:51:57,309 INFO L93 Difference]: Finished difference Result 1315 states and 3797 transitions. [2021-01-20 14:51:57,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:51:57,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-20 14:51:57,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:51:57,315 INFO L225 Difference]: With dead ends: 1315 [2021-01-20 14:51:57,315 INFO L226 Difference]: Without dead ends: 692 [2021-01-20 14:51:57,316 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:51:57,316 INFO L78 Accepts]: Start accepts. Automaton has 692 states. Word has length 55 [2021-01-20 14:51:57,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:51:57,316 INFO L481 AbstractCegarLoop]: Abstraction has 692 states. [2021-01-20 14:51:57,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:51:57,317 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states. [2021-01-20 14:51:57,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 14:51:57,319 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:51:57,320 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:51:57,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:51:57,320 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:51:57,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:51:57,321 INFO L82 PathProgramCache]: Analyzing trace with hash 952401922, now seen corresponding path program 3 times [2021-01-20 14:51:57,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:51:57,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22705956] [2021-01-20 14:51:57,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:51:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:51:57,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:51:57,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22705956] [2021-01-20 14:51:57,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:51:57,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:51:57,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823357054] [2021-01-20 14:51:57,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:51:57,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:51:57,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:51:57,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:51:57,435 INFO L87 Difference]: Start difference. First operand 692 states. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:51:57,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:51:57,526 INFO L93 Difference]: Finished difference Result 584 states and 1626 transitions. [2021-01-20 14:51:57,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:51:57,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-20 14:51:57,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:51:57,527 INFO L225 Difference]: With dead ends: 584 [2021-01-20 14:51:57,527 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:51:57,528 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:51:57,528 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 55 [2021-01-20 14:51:57,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:51:57,528 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:51:57,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:51:57,530 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:51:57,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:51:57,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 14:51:57,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:51:57 BasicIcfg [2021-01-20 14:51:57,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:51:57,539 INFO L168 Benchmark]: Toolchain (without parser) took 5322.43 ms. Allocated memory was 302.0 MB in the beginning and 371.2 MB in the end (delta: 69.2 MB). Free memory was 276.9 MB in the beginning and 258.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 89.4 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:57,540 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:51:57,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 619.65 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 245.9 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:57,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.83 ms. Allocated memory is still 302.0 MB. Free memory was 245.9 MB in the beginning and 243.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:57,548 INFO L168 Benchmark]: Boogie Preprocessor took 72.54 ms. Allocated memory is still 302.0 MB. Free memory was 243.9 MB in the beginning and 284.8 MB in the end (delta: -40.9 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:57,549 INFO L168 Benchmark]: RCFGBuilder took 501.27 ms. Allocated memory is still 302.0 MB. Free memory was 284.8 MB in the beginning and 262.5 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:57,550 INFO L168 Benchmark]: TraceAbstraction took 4070.34 ms. Allocated memory was 302.0 MB in the beginning and 371.2 MB in the end (delta: 69.2 MB). Free memory was 261.4 MB in the beginning and 258.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:57,559 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 619.65 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 245.9 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 47.83 ms. Allocated memory is still 302.0 MB. Free memory was 245.9 MB in the beginning and 243.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 72.54 ms. Allocated memory is still 302.0 MB. Free memory was 243.9 MB in the beginning and 284.8 MB in the end (delta: -40.9 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * RCFGBuilder took 501.27 ms. Allocated memory is still 302.0 MB. Free memory was 284.8 MB in the beginning and 262.5 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4070.34 ms. Allocated memory was 302.0 MB in the beginning and 371.2 MB in the end (delta: 69.2 MB). Free memory was 261.4 MB in the beginning and 258.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 553 SDtfs, 747 SDslu, 2005 SDs, 0 SdLazy, 227 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9849occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 300 ConstructedInterpolants, 0 QuantifiedInterpolants, 38064 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...