/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:13:07,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:13:07,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:13:07,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:13:07,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:13:07,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:13:07,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:13:07,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:13:07,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:13:07,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:13:07,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:13:07,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:13:07,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:13:07,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:13:07,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:13:07,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:13:07,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:13:07,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:13:07,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:13:07,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:13:07,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:13:07,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:13:07,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:13:07,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:13:07,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 17:13:07,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:13:07,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:13:07,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:13:07,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:13:07,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:13:07,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:13:07,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:13:07,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:13:07,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:13:07,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:13:07,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:13:07,249 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:13:07,303 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:13:07,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:13:07,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:13:07,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:13:07,309 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:13:07,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:13:07,309 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:13:07,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:13:07,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:13:07,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:13:07,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:13:07,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:13:07,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:13:07,311 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:13:07,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:13:07,312 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:13:07,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:13:07,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:13:07,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:13:07,313 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:13:07,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:13:07,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:13:07,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:13:07,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:13:07,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:13:07,314 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:13:07,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:13:07,314 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:13:07,314 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:13:07,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:13:07,315 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:13:07,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:13:07,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:13:07,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:13:07,748 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:13:07,749 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:13:07,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i [2020-11-09 17:13:07,846 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78fdd839e/863b089afd9840d9b6630e8b80fc4aad/FLAGcf22355bf [2020-11-09 17:13:08,624 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:13:08,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i [2020-11-09 17:13:08,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78fdd839e/863b089afd9840d9b6630e8b80fc4aad/FLAGcf22355bf [2020-11-09 17:13:08,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78fdd839e/863b089afd9840d9b6630e8b80fc4aad [2020-11-09 17:13:08,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:13:08,935 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:13:08,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:13:08,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:13:08,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:13:08,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:13:08" (1/1) ... [2020-11-09 17:13:08,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794b51fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:08, skipping insertion in model container [2020-11-09 17:13:08,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:13:08" (1/1) ... [2020-11-09 17:13:08,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:13:09,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:13:09,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:13:09,561 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:13:09,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:13:09,734 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:13:09,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:09 WrapperNode [2020-11-09 17:13:09,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:13:09,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:13:09,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:13:09,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:13:09,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:09" (1/1) ... [2020-11-09 17:13:09,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:09" (1/1) ... [2020-11-09 17:13:09,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:13:09,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:13:09,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:13:09,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:13:09,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:09" (1/1) ... [2020-11-09 17:13:09,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:09" (1/1) ... [2020-11-09 17:13:09,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:09" (1/1) ... [2020-11-09 17:13:09,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:09" (1/1) ... [2020-11-09 17:13:09,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:09" (1/1) ... [2020-11-09 17:13:09,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:09" (1/1) ... [2020-11-09 17:13:09,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:09" (1/1) ... [2020-11-09 17:13:09,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:13:09,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:13:09,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:13:09,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:13:09,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:13:09,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:13:09,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:13:09,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:13:09,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:13:09,977 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:13:09,979 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:13:09,980 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:13:09,980 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:13:09,981 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:13:09,982 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:13:09,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:13:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:13:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:13:09,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:13:09,985 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:13:10,506 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:13:10,507 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:13:10,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:13:10 BoogieIcfgContainer [2020-11-09 17:13:10,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:13:10,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:13:10,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:13:10,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:13:10,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:13:08" (1/3) ... [2020-11-09 17:13:10,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5513d8a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:13:10, skipping insertion in model container [2020-11-09 17:13:10,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:09" (2/3) ... [2020-11-09 17:13:10,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5513d8a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:13:10, skipping insertion in model container [2020-11-09 17:13:10,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:13:10" (3/3) ... [2020-11-09 17:13:10,521 INFO L111 eAbstractionObserver]: Analyzing ICFG safe031_tso.opt.i [2020-11-09 17:13:10,540 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:13:10,541 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:13:10,545 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:13:10,547 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:13:10,584 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,584 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,585 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,585 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,585 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,586 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,586 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,586 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,587 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,587 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,587 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,588 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,588 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,589 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,589 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,590 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,591 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,591 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,592 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,592 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,592 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,592 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,593 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,593 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,593 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,595 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,596 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,596 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,596 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,603 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,603 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,604 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,608 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,608 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:10,612 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:13:10,626 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:13:10,650 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:13:10,651 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:13:10,651 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:13:10,651 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:13:10,651 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:13:10,651 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:13:10,651 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:13:10,652 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:13:10,666 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:13:10,667 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 17:13:10,671 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 17:13:10,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-11-09 17:13:10,721 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-11-09 17:13:10,721 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:13:10,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 17:13:10,730 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 17:13:11,311 WARN L194 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2020-11-09 17:13:11,975 WARN L194 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-11-09 17:13:13,739 WARN L194 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:13:14,048 WARN L194 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:13:14,157 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:13:14,179 INFO L131 LiptonReduction]: Checked pairs total: 2814 [2020-11-09 17:13:14,180 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-11-09 17:13:14,187 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-09 17:13:14,222 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-11-09 17:13:14,224 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-09 17:13:14,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:13:14,233 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:14,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:14,234 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:14,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:14,241 INFO L82 PathProgramCache]: Analyzing trace with hash 515529937, now seen corresponding path program 1 times [2020-11-09 17:13:14,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:14,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232575471] [2020-11-09 17:13:14,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:14,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:14,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232575471] [2020-11-09 17:13:14,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:14,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:13:14,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1480890450] [2020-11-09 17:13:14,465 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:14,468 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:14,483 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 17:13:14,483 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:14,487 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:14,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 17:13:14,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:14,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 17:13:14,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:13:14,508 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-11-09 17:13:14,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:14,535 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-09 17:13:14,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 17:13:14,538 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 17:13:14,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:14,555 INFO L225 Difference]: With dead ends: 362 [2020-11-09 17:13:14,555 INFO L226 Difference]: Without dead ends: 298 [2020-11-09 17:13:14,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:13:14,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-09 17:13:14,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-09 17:13:14,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-09 17:13:14,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-09 17:13:14,639 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-09 17:13:14,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:14,641 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-09 17:13:14,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 17:13:14,641 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-09 17:13:14,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:13:14,644 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:14,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:14,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:13:14,645 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:14,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:14,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1198450655, now seen corresponding path program 1 times [2020-11-09 17:13:14,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:14,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022740628] [2020-11-09 17:13:14,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:14,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:14,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022740628] [2020-11-09 17:13:14,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:14,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:13:14,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1338733771] [2020-11-09 17:13:14,854 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:14,855 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:14,860 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 17:13:14,861 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:14,861 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:14,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:13:14,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:14,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:13:14,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:13:14,864 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-11-09 17:13:14,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:14,900 INFO L93 Difference]: Finished difference Result 346 states and 956 transitions. [2020-11-09 17:13:14,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:13:14,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 17:13:14,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:14,904 INFO L225 Difference]: With dead ends: 346 [2020-11-09 17:13:14,905 INFO L226 Difference]: Without dead ends: 282 [2020-11-09 17:13:14,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:13:14,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-11-09 17:13:14,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-11-09 17:13:14,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-09 17:13:14,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 804 transitions. [2020-11-09 17:13:14,935 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 804 transitions. Word has length 9 [2020-11-09 17:13:14,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:14,936 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 804 transitions. [2020-11-09 17:13:14,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:13:14,936 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 804 transitions. [2020-11-09 17:13:14,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:13:14,938 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:14,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:14,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:13:14,938 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:14,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:14,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1977877749, now seen corresponding path program 1 times [2020-11-09 17:13:14,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:14,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162382468] [2020-11-09 17:13:14,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:15,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:15,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162382468] [2020-11-09 17:13:15,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:15,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:13:15,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1841460924] [2020-11-09 17:13:15,055 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:15,056 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:15,059 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 20 transitions. [2020-11-09 17:13:15,059 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:15,142 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:15,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:13:15,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:15,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:13:15,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:13:15,144 INFO L87 Difference]: Start difference. First operand 282 states and 804 transitions. Second operand 4 states. [2020-11-09 17:13:15,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:15,168 INFO L93 Difference]: Finished difference Result 318 states and 870 transitions. [2020-11-09 17:13:15,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:13:15,169 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-09 17:13:15,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:15,173 INFO L225 Difference]: With dead ends: 318 [2020-11-09 17:13:15,173 INFO L226 Difference]: Without dead ends: 270 [2020-11-09 17:13:15,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:13:15,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-11-09 17:13:15,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2020-11-09 17:13:15,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-11-09 17:13:15,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 760 transitions. [2020-11-09 17:13:15,213 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 760 transitions. Word has length 10 [2020-11-09 17:13:15,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:15,214 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 760 transitions. [2020-11-09 17:13:15,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:13:15,215 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 760 transitions. [2020-11-09 17:13:15,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:13:15,220 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:15,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:15,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:13:15,220 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:15,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:15,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1186186363, now seen corresponding path program 1 times [2020-11-09 17:13:15,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:15,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652620396] [2020-11-09 17:13:15,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:15,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:15,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652620396] [2020-11-09 17:13:15,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:15,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:13:15,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [983789370] [2020-11-09 17:13:15,334 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:15,335 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:15,337 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-11-09 17:13:15,338 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:15,357 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:13:15,431 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:13:15,483 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:15,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:13:15,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:15,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:13:15,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:13:15,485 INFO L87 Difference]: Start difference. First operand 270 states and 760 transitions. Second operand 4 states. [2020-11-09 17:13:15,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:15,528 INFO L93 Difference]: Finished difference Result 273 states and 687 transitions. [2020-11-09 17:13:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:13:15,534 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 17:13:15,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:15,536 INFO L225 Difference]: With dead ends: 273 [2020-11-09 17:13:15,536 INFO L226 Difference]: Without dead ends: 209 [2020-11-09 17:13:15,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:13:15,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-11-09 17:13:15,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-11-09 17:13:15,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-11-09 17:13:15,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 516 transitions. [2020-11-09 17:13:15,558 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 516 transitions. Word has length 11 [2020-11-09 17:13:15,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:15,558 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 516 transitions. [2020-11-09 17:13:15,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:13:15,558 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 516 transitions. [2020-11-09 17:13:15,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:13:15,560 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:15,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:15,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:13:15,561 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:15,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:15,570 INFO L82 PathProgramCache]: Analyzing trace with hash -497822471, now seen corresponding path program 1 times [2020-11-09 17:13:15,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:15,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175849154] [2020-11-09 17:13:15,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:15,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:15,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175849154] [2020-11-09 17:13:15,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:15,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:13:15,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [454021948] [2020-11-09 17:13:15,731 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:15,732 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:15,733 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-11-09 17:13:15,733 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:15,734 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:15,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:13:15,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:15,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:13:15,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:13:15,738 INFO L87 Difference]: Start difference. First operand 209 states and 516 transitions. Second operand 4 states. [2020-11-09 17:13:15,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:15,770 INFO L93 Difference]: Finished difference Result 303 states and 706 transitions. [2020-11-09 17:13:15,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:13:15,773 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-09 17:13:15,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:15,775 INFO L225 Difference]: With dead ends: 303 [2020-11-09 17:13:15,775 INFO L226 Difference]: Without dead ends: 223 [2020-11-09 17:13:15,776 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:13:15,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-11-09 17:13:15,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 199. [2020-11-09 17:13:15,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-11-09 17:13:15,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 470 transitions. [2020-11-09 17:13:15,796 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 470 transitions. Word has length 12 [2020-11-09 17:13:15,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:15,797 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 470 transitions. [2020-11-09 17:13:15,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:13:15,797 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 470 transitions. [2020-11-09 17:13:15,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:13:15,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:15,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:15,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:13:15,802 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:15,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:15,803 INFO L82 PathProgramCache]: Analyzing trace with hash -319232189, now seen corresponding path program 1 times [2020-11-09 17:13:15,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:15,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678201383] [2020-11-09 17:13:15,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:15,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:15,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678201383] [2020-11-09 17:13:15,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:15,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:13:15,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [773608664] [2020-11-09 17:13:15,914 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:15,916 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:15,919 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 45 transitions. [2020-11-09 17:13:15,919 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:16,047 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4961#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:13:16,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 17:13:16,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:16,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 17:13:16,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 17:13:16,048 INFO L87 Difference]: Start difference. First operand 199 states and 470 transitions. Second operand 6 states. [2020-11-09 17:13:16,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:16,105 INFO L93 Difference]: Finished difference Result 171 states and 364 transitions. [2020-11-09 17:13:16,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:13:16,107 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-11-09 17:13:16,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:16,108 INFO L225 Difference]: With dead ends: 171 [2020-11-09 17:13:16,108 INFO L226 Difference]: Without dead ends: 134 [2020-11-09 17:13:16,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:13:16,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-11-09 17:13:16,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-11-09 17:13:16,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-11-09 17:13:16,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 280 transitions. [2020-11-09 17:13:16,114 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 280 transitions. Word has length 13 [2020-11-09 17:13:16,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:16,114 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 280 transitions. [2020-11-09 17:13:16,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 17:13:16,115 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 280 transitions. [2020-11-09 17:13:16,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:13:16,115 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:16,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:16,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:13:16,116 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:16,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:16,117 INFO L82 PathProgramCache]: Analyzing trace with hash 447753789, now seen corresponding path program 1 times [2020-11-09 17:13:16,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:16,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841024880] [2020-11-09 17:13:16,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:16,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:16,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841024880] [2020-11-09 17:13:16,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:16,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:13:16,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1018083515] [2020-11-09 17:13:16,178 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:16,179 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:16,184 INFO L252 McrAutomatonBuilder]: Finished intersection with 40 states and 67 transitions. [2020-11-09 17:13:16,184 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:16,248 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:16,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:13:16,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:16,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:13:16,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:13:16,252 INFO L87 Difference]: Start difference. First operand 134 states and 280 transitions. Second operand 4 states. [2020-11-09 17:13:16,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:16,295 INFO L93 Difference]: Finished difference Result 177 states and 347 transitions. [2020-11-09 17:13:16,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:13:16,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-09 17:13:16,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:16,297 INFO L225 Difference]: With dead ends: 177 [2020-11-09 17:13:16,297 INFO L226 Difference]: Without dead ends: 130 [2020-11-09 17:13:16,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:13:16,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-11-09 17:13:16,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2020-11-09 17:13:16,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-11-09 17:13:16,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 248 transitions. [2020-11-09 17:13:16,303 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 248 transitions. Word has length 15 [2020-11-09 17:13:16,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:16,303 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 248 transitions. [2020-11-09 17:13:16,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:13:16,303 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 248 transitions. [2020-11-09 17:13:16,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:13:16,304 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:16,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:16,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 17:13:16,304 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:16,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:16,305 INFO L82 PathProgramCache]: Analyzing trace with hash 144030791, now seen corresponding path program 1 times [2020-11-09 17:13:16,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:16,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315411912] [2020-11-09 17:13:16,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:16,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:16,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315411912] [2020-11-09 17:13:16,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:16,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 17:13:16,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2028593086] [2020-11-09 17:13:16,372 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:16,374 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:16,378 INFO L252 McrAutomatonBuilder]: Finished intersection with 34 states and 48 transitions. [2020-11-09 17:13:16,378 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:16,378 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:16,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 17:13:16,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:16,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 17:13:16,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 17:13:16,380 INFO L87 Difference]: Start difference. First operand 126 states and 248 transitions. Second operand 6 states. [2020-11-09 17:13:16,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:16,432 INFO L93 Difference]: Finished difference Result 113 states and 220 transitions. [2020-11-09 17:13:16,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:13:16,433 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-09 17:13:16,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:16,434 INFO L225 Difference]: With dead ends: 113 [2020-11-09 17:13:16,434 INFO L226 Difference]: Without dead ends: 37 [2020-11-09 17:13:16,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:13:16,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-09 17:13:16,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-09 17:13:16,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-09 17:13:16,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-11-09 17:13:16,437 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 15 [2020-11-09 17:13:16,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:16,438 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-11-09 17:13:16,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 17:13:16,438 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-11-09 17:13:16,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 17:13:16,438 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:16,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:16,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 17:13:16,439 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:16,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:16,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1289085181, now seen corresponding path program 1 times [2020-11-09 17:13:16,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:16,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085263661] [2020-11-09 17:13:16,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:16,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:16,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085263661] [2020-11-09 17:13:16,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:16,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:13:16,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1795102148] [2020-11-09 17:13:16,492 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:16,494 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:16,507 INFO L252 McrAutomatonBuilder]: Finished intersection with 62 states and 104 transitions. [2020-11-09 17:13:16,508 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:16,521 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:16,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:13:16,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:16,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:13:16,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:13:16,522 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-11-09 17:13:16,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:16,548 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-11-09 17:13:16,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:13:16,548 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-09 17:13:16,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:16,549 INFO L225 Difference]: With dead ends: 36 [2020-11-09 17:13:16,549 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:13:16,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:13:16,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:13:16,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:13:16,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:13:16,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:13:16,550 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-09 17:13:16,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:16,550 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:13:16,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:13:16,550 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:13:16,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:13:16,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 17:13:16,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:13:16 BasicIcfg [2020-11-09 17:13:16,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:13:16,555 INFO L168 Benchmark]: Toolchain (without parser) took 7626.50 ms. Allocated memory was 125.8 MB in the beginning and 190.8 MB in the end (delta: 65.0 MB). Free memory was 99.6 MB in the beginning and 73.1 MB in the end (delta: 26.5 MB). Peak memory consumption was 91.7 MB. Max. memory is 8.0 GB. [2020-11-09 17:13:16,556 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 125.8 MB. Free memory is still 87.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:13:16,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.32 ms. Allocated memory was 125.8 MB in the beginning and 158.3 MB in the end (delta: 32.5 MB). Free memory was 98.9 MB in the beginning and 134.1 MB in the end (delta: -35.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. [2020-11-09 17:13:16,558 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.61 ms. Allocated memory is still 158.3 MB. Free memory was 134.1 MB in the beginning and 132.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:13:16,558 INFO L168 Benchmark]: Boogie Preprocessor took 65.39 ms. Allocated memory is still 158.3 MB. Free memory was 132.0 MB in the beginning and 130.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:13:16,559 INFO L168 Benchmark]: RCFGBuilder took 613.65 ms. Allocated memory is still 158.3 MB. Free memory was 130.5 MB in the beginning and 108.9 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:13:16,560 INFO L168 Benchmark]: TraceAbstraction took 6042.03 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 108.5 MB in the beginning and 73.1 MB in the end (delta: 35.4 MB). Peak memory consumption was 67.7 MB. Max. memory is 8.0 GB. [2020-11-09 17:13:16,564 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 125.8 MB. Free memory is still 87.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 796.32 ms. Allocated memory was 125.8 MB in the beginning and 158.3 MB in the end (delta: 32.5 MB). Free memory was 98.9 MB in the beginning and 134.1 MB in the end (delta: -35.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 93.61 ms. Allocated memory is still 158.3 MB. Free memory was 134.1 MB in the beginning and 132.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 65.39 ms. Allocated memory is still 158.3 MB. Free memory was 132.0 MB in the beginning and 130.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 613.65 ms. Allocated memory is still 158.3 MB. Free memory was 130.5 MB in the beginning and 108.9 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6042.03 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 108.5 MB in the beginning and 73.1 MB in the end (delta: 35.4 MB). Peak memory consumption was 67.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 779 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 48 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.5s, 85 PlacesBefore, 32 PlacesAfterwards, 78 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2814 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 211 SDtfs, 158 SDslu, 310 SDs, 0 SdLazy, 117 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 3183 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...