/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:32:32,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:32:32,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:32:33,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:32:33,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:32:33,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:32:33,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:32:33,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:32:33,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:32:33,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:32:33,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:32:33,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:32:33,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:32:33,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:32:33,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:32:33,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:32:33,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:32:33,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:32:33,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:32:33,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:32:33,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:32:33,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:32:33,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:32:33,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:32:33,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 15:32:33,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:32:33,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:32:33,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:32:33,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:32:33,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:32:33,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:32:33,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:32:33,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:32:33,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:32:33,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:32:33,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:32:33,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-11-09 15:32:33,095 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:32:33,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:32:33,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:32:33,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:32:33,101 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:32:33,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:32:33,101 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:32:33,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:32:33,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:32:33,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:32:33,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:32:33,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:32:33,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:32:33,104 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:32:33,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:32:33,104 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:32:33,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:32:33,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:32:33,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:32:33,105 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:32:33,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:32:33,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:32:33,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:32:33,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:32:33,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:32:33,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:32:33,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:32:33,107 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:32:33,107 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:32:33,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:32:33,107 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:32:33,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:32:33,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:32:33,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:32:33,584 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:32:33,585 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:32:33,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-11-09 15:32:33,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27c2e309/a8da84aab54747598fd0a46b86eaa83a/FLAG48ca031a6 [2020-11-09 15:32:34,441 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:32:34,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-11-09 15:32:34,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27c2e309/a8da84aab54747598fd0a46b86eaa83a/FLAG48ca031a6 [2020-11-09 15:32:34,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27c2e309/a8da84aab54747598fd0a46b86eaa83a [2020-11-09 15:32:34,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:32:34,696 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:32:34,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:32:34,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:32:34,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:32:34,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:32:34" (1/1) ... [2020-11-09 15:32:34,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70eef722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:34, skipping insertion in model container [2020-11-09 15:32:34,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:32:34" (1/1) ... [2020-11-09 15:32:34,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:32:34,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:32:35,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:32:35,203 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:32:35,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:32:35,427 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:32:35,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:35 WrapperNode [2020-11-09 15:32:35,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:32:35,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:32:35,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:32:35,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:32:35,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:35" (1/1) ... [2020-11-09 15:32:35,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:35" (1/1) ... [2020-11-09 15:32:35,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:32:35,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:32:35,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:32:35,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:32:35,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:35" (1/1) ... [2020-11-09 15:32:35,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:35" (1/1) ... [2020-11-09 15:32:35,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:35" (1/1) ... [2020-11-09 15:32:35,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:35" (1/1) ... [2020-11-09 15:32:35,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:35" (1/1) ... [2020-11-09 15:32:35,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:35" (1/1) ... [2020-11-09 15:32:35,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:35" (1/1) ... [2020-11-09 15:32:35,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:32:35,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:32:35,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:32:35,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:32:35,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:32:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:32:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:32:35,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:32:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:32:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:32:35,616 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:32:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:32:35,616 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:32:35,616 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:32:35,617 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:32:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:32:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:32:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:32:35,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:32:35,619 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 15:32:36,185 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:32:36,185 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:32:36,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:32:36 BoogieIcfgContainer [2020-11-09 15:32:36,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:32:36,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:32:36,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:32:36,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:32:36,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:32:34" (1/3) ... [2020-11-09 15:32:36,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628e378d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:32:36, skipping insertion in model container [2020-11-09 15:32:36,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:35" (2/3) ... [2020-11-09 15:32:36,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628e378d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:32:36, skipping insertion in model container [2020-11-09 15:32:36,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:32:36" (3/3) ... [2020-11-09 15:32:36,197 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2020-11-09 15:32:36,215 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:32:36,216 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:32:36,223 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:32:36,224 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:32:36,287 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,288 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,288 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,288 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,288 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,288 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,289 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,289 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,289 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,292 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,292 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,292 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,293 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,300 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,304 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,304 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,305 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,306 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,306 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,314 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,315 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,316 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,316 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,328 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,329 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,329 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,329 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,335 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,335 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:32:36,341 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:32:36,356 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 15:32:36,398 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:32:36,398 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:32:36,398 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:32:36,398 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:32:36,399 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:32:36,399 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:32:36,399 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:32:36,399 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:32:36,423 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:32:36,424 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 15:32:36,428 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 15:32:36,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-09 15:32:36,485 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-09 15:32:36,486 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:32:36,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 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. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 15:32:36,494 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 15:32:40,516 WARN L194 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 15:32:40,639 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:32:40,888 WARN L194 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 15:32:41,008 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:32:41,033 INFO L131 LiptonReduction]: Checked pairs total: 2779 [2020-11-09 15:32:41,033 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-11-09 15:32:41,040 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-09 15:32:41,072 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-11-09 15:32:41,074 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-09 15:32:41,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 15:32:41,082 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:41,083 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:41,084 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:41,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:41,090 INFO L82 PathProgramCache]: Analyzing trace with hash -460323677, now seen corresponding path program 1 times [2020-11-09 15:32:41,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:41,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353425954] [2020-11-09 15:32:41,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:41,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:32:41,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353425954] [2020-11-09 15:32:41,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:41,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:32:41,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1492729785] [2020-11-09 15:32:41,305 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:41,308 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:41,322 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 15:32:41,322 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:41,327 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:32:41,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 15:32:41,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:41,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 15:32:41,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 15:32:41,346 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-11-09 15:32:41,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:41,373 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-09 15:32:41,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 15:32:41,375 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 15:32:41,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:41,393 INFO L225 Difference]: With dead ends: 362 [2020-11-09 15:32:41,393 INFO L226 Difference]: Without dead ends: 298 [2020-11-09 15:32:41,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 15:32:41,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-09 15:32:41,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-09 15:32:41,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-09 15:32:41,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-09 15:32:41,482 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-09 15:32:41,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:41,483 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-09 15:32:41,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 15:32:41,484 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-09 15:32:41,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:32:41,485 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:41,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:41,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:32:41,486 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:41,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:41,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1385173359, now seen corresponding path program 1 times [2020-11-09 15:32:41,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:41,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722253433] [2020-11-09 15:32:41,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:41,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:32:41,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722253433] [2020-11-09 15:32:41,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:41,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:32:41,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [109467343] [2020-11-09 15:32:41,781 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:41,783 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:41,786 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 15:32:41,790 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:41,791 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:32:41,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:32:41,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:41,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:32:41,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:32:41,796 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-11-09 15:32:41,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:41,900 INFO L93 Difference]: Finished difference Result 346 states and 956 transitions. [2020-11-09 15:32:41,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:32:41,901 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 15:32:41,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:41,906 INFO L225 Difference]: With dead ends: 346 [2020-11-09 15:32:41,906 INFO L226 Difference]: Without dead ends: 282 [2020-11-09 15:32:41,909 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 15:32:41,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-11-09 15:32:41,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-11-09 15:32:41,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-09 15:32:41,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 804 transitions. [2020-11-09 15:32:41,966 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 804 transitions. Word has length 9 [2020-11-09 15:32:41,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:41,966 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 804 transitions. [2020-11-09 15:32:41,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:32:41,966 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 804 transitions. [2020-11-09 15:32:41,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:32:41,969 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:41,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:41,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:32:41,970 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:41,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:41,970 INFO L82 PathProgramCache]: Analyzing trace with hash 585999155, now seen corresponding path program 1 times [2020-11-09 15:32:41,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:41,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606380755] [2020-11-09 15:32:41,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:42,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:32:42,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606380755] [2020-11-09 15:32:42,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:42,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:32:42,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [65386532] [2020-11-09 15:32:42,086 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:42,087 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:42,090 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 20 transitions. [2020-11-09 15:32:42,090 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:42,216 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:32:42,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:32:42,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:42,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:32:42,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:32:42,218 INFO L87 Difference]: Start difference. First operand 282 states and 804 transitions. Second operand 4 states. [2020-11-09 15:32:42,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:42,265 INFO L93 Difference]: Finished difference Result 306 states and 838 transitions. [2020-11-09 15:32:42,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:32:42,266 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-09 15:32:42,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:42,270 INFO L225 Difference]: With dead ends: 306 [2020-11-09 15:32:42,272 INFO L226 Difference]: Without dead ends: 258 [2020-11-09 15:32:42,273 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 15:32:42,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-11-09 15:32:42,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2020-11-09 15:32:42,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-11-09 15:32:42,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 722 transitions. [2020-11-09 15:32:42,302 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 722 transitions. Word has length 10 [2020-11-09 15:32:42,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:42,302 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 722 transitions. [2020-11-09 15:32:42,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:32:42,303 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 722 transitions. [2020-11-09 15:32:42,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:32:42,309 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:42,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:42,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:32:42,311 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:42,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:42,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1013183742, now seen corresponding path program 1 times [2020-11-09 15:32:42,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:42,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005907517] [2020-11-09 15:32:42,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:42,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:32:42,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005907517] [2020-11-09 15:32:42,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:42,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:32:42,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [274187992] [2020-11-09 15:32:42,426 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:42,427 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:42,430 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 38 transitions. [2020-11-09 15:32:42,430 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:42,578 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:32:42,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:32:42,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:42,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:32:42,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:32:42,580 INFO L87 Difference]: Start difference. First operand 258 states and 722 transitions. Second operand 4 states. [2020-11-09 15:32:42,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:42,621 INFO L93 Difference]: Finished difference Result 280 states and 752 transitions. [2020-11-09 15:32:42,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:32:42,622 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 15:32:42,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:42,624 INFO L225 Difference]: With dead ends: 280 [2020-11-09 15:32:42,624 INFO L226 Difference]: Without dead ends: 236 [2020-11-09 15:32:42,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 15:32:42,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-11-09 15:32:42,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2020-11-09 15:32:42,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-11-09 15:32:42,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 648 transitions. [2020-11-09 15:32:42,638 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 648 transitions. Word has length 11 [2020-11-09 15:32:42,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:42,639 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 648 transitions. [2020-11-09 15:32:42,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:32:42,639 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 648 transitions. [2020-11-09 15:32:42,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:32:42,640 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:42,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:42,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:32:42,641 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:42,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:42,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1343804868, now seen corresponding path program 1 times [2020-11-09 15:32:42,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:42,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654739801] [2020-11-09 15:32:42,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:42,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:32:42,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654739801] [2020-11-09 15:32:42,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:42,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:32:42,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1552278415] [2020-11-09 15:32:42,713 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:42,715 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:42,718 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 46 transitions. [2020-11-09 15:32:42,719 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:42,914 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:32:42,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:32:42,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:42,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:32:42,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:32:42,915 INFO L87 Difference]: Start difference. First operand 236 states and 648 transitions. Second operand 5 states. [2020-11-09 15:32:43,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:43,009 INFO L93 Difference]: Finished difference Result 299 states and 792 transitions. [2020-11-09 15:32:43,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 15:32:43,010 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 15:32:43,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:43,011 INFO L225 Difference]: With dead ends: 299 [2020-11-09 15:32:43,011 INFO L226 Difference]: Without dead ends: 146 [2020-11-09 15:32:43,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 15:32:43,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-09 15:32:43,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-11-09 15:32:43,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-09 15:32:43,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-11-09 15:32:43,017 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 12 [2020-11-09 15:32:43,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:43,018 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-11-09 15:32:43,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:32:43,018 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-11-09 15:32:43,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:32:43,019 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:43,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:43,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:32:43,019 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:43,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:43,020 INFO L82 PathProgramCache]: Analyzing trace with hash -365258832, now seen corresponding path program 1 times [2020-11-09 15:32:43,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:43,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604854797] [2020-11-09 15:32:43,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:43,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:32:43,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604854797] [2020-11-09 15:32:43,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:43,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:32:43,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2128237795] [2020-11-09 15:32:43,134 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:43,137 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:43,144 INFO L252 McrAutomatonBuilder]: Finished intersection with 32 states and 51 transitions. [2020-11-09 15:32:43,144 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:43,263 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:32:43,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:32:43,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:43,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:32:43,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:32:43,265 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-11-09 15:32:43,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:43,382 INFO L93 Difference]: Finished difference Result 218 states and 538 transitions. [2020-11-09 15:32:43,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:32:43,383 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 15:32:43,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:43,384 INFO L225 Difference]: With dead ends: 218 [2020-11-09 15:32:43,384 INFO L226 Difference]: Without dead ends: 146 [2020-11-09 15:32:43,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 15:32:43,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-09 15:32:43,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-11-09 15:32:43,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-09 15:32:43,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 348 transitions. [2020-11-09 15:32:43,392 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 348 transitions. Word has length 13 [2020-11-09 15:32:43,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:43,392 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 348 transitions. [2020-11-09 15:32:43,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:32:43,392 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 348 transitions. [2020-11-09 15:32:43,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:32:43,393 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:43,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:43,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:32:43,393 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:43,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:43,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1456573974, now seen corresponding path program 2 times [2020-11-09 15:32:43,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:43,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718465431] [2020-11-09 15:32:43,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:43,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:32:43,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718465431] [2020-11-09 15:32:43,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:43,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:32:43,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [640673614] [2020-11-09 15:32:43,452 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:43,453 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:43,456 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 21 transitions. [2020-11-09 15:32:43,456 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:43,471 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:32:43,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:32:43,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:43,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:32:43,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:32:43,472 INFO L87 Difference]: Start difference. First operand 146 states and 348 transitions. Second operand 4 states. [2020-11-09 15:32:43,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:43,507 INFO L93 Difference]: Finished difference Result 152 states and 349 transitions. [2020-11-09 15:32:43,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:32:43,508 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 15:32:43,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:43,509 INFO L225 Difference]: With dead ends: 152 [2020-11-09 15:32:43,510 INFO L226 Difference]: Without dead ends: 134 [2020-11-09 15:32:43,510 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 15:32:43,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-11-09 15:32:43,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-11-09 15:32:43,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-11-09 15:32:43,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 310 transitions. [2020-11-09 15:32:43,515 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 310 transitions. Word has length 13 [2020-11-09 15:32:43,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:43,516 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 310 transitions. [2020-11-09 15:32:43,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:32:43,516 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 310 transitions. [2020-11-09 15:32:43,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:32:43,516 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:43,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:43,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 15:32:43,517 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:43,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:43,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1047574954, now seen corresponding path program 1 times [2020-11-09 15:32:43,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:43,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507951434] [2020-11-09 15:32:43,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:43,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:32:43,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507951434] [2020-11-09 15:32:43,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:43,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:32:43,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [296013825] [2020-11-09 15:32:43,581 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:43,583 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:43,586 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-11-09 15:32:43,586 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:43,601 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:32:43,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:32:43,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:43,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:32:43,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:32:43,606 INFO L87 Difference]: Start difference. First operand 134 states and 310 transitions. Second operand 5 states. [2020-11-09 15:32:43,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:43,651 INFO L93 Difference]: Finished difference Result 162 states and 370 transitions. [2020-11-09 15:32:43,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:32:43,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 15:32:43,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:43,652 INFO L225 Difference]: With dead ends: 162 [2020-11-09 15:32:43,652 INFO L226 Difference]: Without dead ends: 90 [2020-11-09 15:32:43,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:32:43,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-11-09 15:32:43,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-11-09 15:32:43,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-09 15:32:43,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 194 transitions. [2020-11-09 15:32:43,657 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 194 transitions. Word has length 14 [2020-11-09 15:32:43,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:43,657 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 194 transitions. [2020-11-09 15:32:43,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:32:43,657 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 194 transitions. [2020-11-09 15:32:43,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 15:32:43,658 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:32:43,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:32:43,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 15:32:43,658 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:32:43,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:32:43,659 INFO L82 PathProgramCache]: Analyzing trace with hash 255451346, now seen corresponding path program 1 times [2020-11-09 15:32:43,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:32:43,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298996126] [2020-11-09 15:32:43,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:32:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:32:43,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:32:43,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298996126] [2020-11-09 15:32:43,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:32:43,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:32:43,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [705637441] [2020-11-09 15:32:43,745 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:32:43,747 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:32:43,751 INFO L252 McrAutomatonBuilder]: Finished intersection with 34 states and 51 transitions. [2020-11-09 15:32:43,752 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:32:43,765 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:32:43,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:32:43,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:32:43,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:32:43,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:32:43,767 INFO L87 Difference]: Start difference. First operand 90 states and 194 transitions. Second operand 4 states. [2020-11-09 15:32:43,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:32:43,792 INFO L93 Difference]: Finished difference Result 82 states and 174 transitions. [2020-11-09 15:32:43,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:32:43,792 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-09 15:32:43,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:32:43,793 INFO L225 Difference]: With dead ends: 82 [2020-11-09 15:32:43,793 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:32:43,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 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 15:32:43,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:32:43,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:32:43,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:32:43,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:32:43,794 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-09 15:32:43,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:32:43,795 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:32:43,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:32:43,795 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:32:43,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:32:43,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 15:32:43,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:32:43 BasicIcfg [2020-11-09 15:32:43,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:32:43,801 INFO L168 Benchmark]: Toolchain (without parser) took 9111.52 ms. Allocated memory was 162.5 MB in the beginning and 241.2 MB in the end (delta: 78.6 MB). Free memory was 135.6 MB in the beginning and 206.7 MB in the end (delta: -71.1 MB). Peak memory consumption was 8.6 MB. Max. memory is 8.0 GB. [2020-11-09 15:32:43,802 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 162.5 MB. Free memory was 135.2 MB in the beginning and 135.1 MB in the end (delta: 89.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:32:43,803 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.91 ms. Allocated memory is still 162.5 MB. Free memory was 134.9 MB in the beginning and 136.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 28.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:32:43,803 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.62 ms. Allocated memory is still 162.5 MB. Free memory was 136.9 MB in the beginning and 134.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:32:43,804 INFO L168 Benchmark]: Boogie Preprocessor took 29.57 ms. Allocated memory is still 162.5 MB. Free memory was 134.8 MB in the beginning and 133.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:32:43,805 INFO L168 Benchmark]: RCFGBuilder took 673.47 ms. Allocated memory is still 162.5 MB. Free memory was 133.8 MB in the beginning and 111.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:32:43,806 INFO L168 Benchmark]: TraceAbstraction took 7609.85 ms. Allocated memory was 162.5 MB in the beginning and 241.2 MB in the end (delta: 78.6 MB). Free memory was 111.2 MB in the beginning and 206.7 MB in the end (delta: -95.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:32:43,809 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 162.5 MB. Free memory was 135.2 MB in the beginning and 135.1 MB in the end (delta: 89.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 728.91 ms. Allocated memory is still 162.5 MB. Free memory was 134.9 MB in the beginning and 136.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 28.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 53.62 ms. Allocated memory is still 162.5 MB. Free memory was 136.9 MB in the beginning and 134.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.57 ms. Allocated memory is still 162.5 MB. Free memory was 134.8 MB in the beginning and 133.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 673.47 ms. Allocated memory is still 162.5 MB. Free memory was 133.8 MB in the beginning and 111.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7609.85 ms. Allocated memory was 162.5 MB in the beginning and 241.2 MB in the end (delta: 78.6 MB). Free memory was 111.2 MB in the beginning and 206.7 MB in the end (delta: -95.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 42 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.6s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2779 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.4s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 209 SDtfs, 157 SDslu, 299 SDs, 0 SdLazy, 91 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 3344 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...