/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/safe004_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:01:30,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:01:30,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:01:30,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:01:30,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:01:30,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:01:30,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:01:30,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:01:30,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:01:30,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:01:30,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:01:30,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:01:30,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:01:30,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:01:30,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:01:30,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:01:30,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:01:30,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:01:30,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:01:30,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:01:30,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:01:30,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:01:30,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:01:30,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:01:30,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 17:01:30,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:01:30,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:01:30,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:01:30,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:01:30,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:01:30,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:01:30,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:01:30,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:01:30,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:01:30,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:01:30,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:01:30,481 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 17:01:30,549 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:01:30,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:01:30,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:01:30,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:01:30,552 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:01:30,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:01:30,553 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:01:30,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:01:30,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:01:30,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:01:30,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:01:30,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:01:30,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:01:30,554 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:01:30,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:01:30,555 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:01:30,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:01:30,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:01:30,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:01:30,556 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:01:30,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:01:30,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:01:30,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:01:30,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:01:30,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:01:30,557 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:01:30,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:01:30,558 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:01:30,558 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:01:30,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:01:30,558 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:01:30,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:01:31,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:01:31,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:01:31,058 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:01:31,059 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:01:31,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-11-09 17:01:31,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d61befe8/372c4346f3fc42d49666e0cb50a82b73/FLAGe6c9cc65a [2020-11-09 17:01:32,176 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:01:32,177 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-11-09 17:01:32,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d61befe8/372c4346f3fc42d49666e0cb50a82b73/FLAGe6c9cc65a [2020-11-09 17:01:32,351 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d61befe8/372c4346f3fc42d49666e0cb50a82b73 [2020-11-09 17:01:32,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:01:32,362 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:01:32,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:01:32,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:01:32,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:01:32,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:01:32" (1/1) ... [2020-11-09 17:01:32,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c4669e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:32, skipping insertion in model container [2020-11-09 17:01:32,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:01:32" (1/1) ... [2020-11-09 17:01:32,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:01:32,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:01:32,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:01:32,852 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:01:32,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:01:33,085 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:01:33,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:33 WrapperNode [2020-11-09 17:01:33,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:01:33,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:01:33,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:01:33,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:01:33,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:33" (1/1) ... [2020-11-09 17:01:33,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:33" (1/1) ... [2020-11-09 17:01:33,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:01:33,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:01:33,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:01:33,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:01:33,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:33" (1/1) ... [2020-11-09 17:01:33,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:33" (1/1) ... [2020-11-09 17:01:33,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:33" (1/1) ... [2020-11-09 17:01:33,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:33" (1/1) ... [2020-11-09 17:01:33,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:33" (1/1) ... [2020-11-09 17:01:33,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:33" (1/1) ... [2020-11-09 17:01:33,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:33" (1/1) ... [2020-11-09 17:01:33,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:01:33,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:01:33,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:01:33,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:01:33,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:33" (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 17:01:33,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:01:33,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:01:33,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:01:33,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:01:33,317 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:01:33,318 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:01:33,318 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:01:33,318 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:01:33,318 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:01:33,318 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:01:33,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:01:33,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:01:33,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:01:33,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:01:33,321 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 17:01:33,799 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:01:33,800 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:01:33,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:01:33 BoogieIcfgContainer [2020-11-09 17:01:33,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:01:33,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:01:33,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:01:33,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:01:33,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:01:32" (1/3) ... [2020-11-09 17:01:33,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116c2e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:01:33, skipping insertion in model container [2020-11-09 17:01:33,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:33" (2/3) ... [2020-11-09 17:01:33,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116c2e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:01:33, skipping insertion in model container [2020-11-09 17:01:33,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:01:33" (3/3) ... [2020-11-09 17:01:33,816 INFO L111 eAbstractionObserver]: Analyzing ICFG safe004_tso.oepc.i [2020-11-09 17:01:33,839 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:01:33,839 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:01:33,845 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:01:33,846 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:01:33,889 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,890 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,890 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,891 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,891 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,891 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,893 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,894 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,894 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,894 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,896 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,897 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,897 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,897 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,897 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,897 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,898 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,898 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,899 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,899 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,899 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,902 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,903 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,910 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,911 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,911 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,911 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,915 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,915 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,916 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,916 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:01:33,919 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:01:33,936 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:01:33,966 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:01:33,966 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:01:33,966 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:01:33,966 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:01:33,966 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:01:33,967 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:01:33,967 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:01:33,967 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:01:33,983 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:01:33,984 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 17:01:33,987 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 17:01:33,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-11-09 17:01:34,044 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-11-09 17:01:34,045 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:01:34,051 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 65 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 17:01:34,055 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 17:01:36,899 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-11-09 17:01:37,092 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-11-09 17:01:37,973 WARN L194 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:01:38,078 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:01:38,340 WARN L194 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:01:38,453 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:01:38,481 INFO L131 LiptonReduction]: Checked pairs total: 3163 [2020-11-09 17:01:38,481 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-11-09 17:01:38,490 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-09 17:01:38,519 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-11-09 17:01:38,521 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-09 17:01:38,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:01:38,528 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:01:38,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:01:38,529 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:01:38,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:01:38,535 INFO L82 PathProgramCache]: Analyzing trace with hash 2115134997, now seen corresponding path program 1 times [2020-11-09 17:01:38,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:01:38,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469992221] [2020-11-09 17:01:38,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:01:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:01:38,822 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 17:01:38,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469992221] [2020-11-09 17:01:38,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:01:38,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:01:38,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2069032163] [2020-11-09 17:01:38,826 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:01:38,829 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:01:38,844 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 17:01:38,844 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:01:38,849 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:01:38,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 17:01:38,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:01:38,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 17:01:38,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:01:38,870 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-11-09 17:01:38,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:01:38,896 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-09 17:01:38,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 17:01:38,901 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 17:01:38,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:01:38,921 INFO L225 Difference]: With dead ends: 362 [2020-11-09 17:01:38,921 INFO L226 Difference]: Without dead ends: 298 [2020-11-09 17:01:38,923 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 17:01:38,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-09 17:01:38,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-09 17:01:38,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-09 17:01:39,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-09 17:01:39,003 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-09 17:01:39,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:01:39,004 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-09 17:01:39,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 17:01:39,004 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-09 17:01:39,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:01:39,006 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:01:39,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:01:39,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:01:39,007 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:01:39,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:01:39,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1144664430, now seen corresponding path program 1 times [2020-11-09 17:01:39,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:01:39,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852963501] [2020-11-09 17:01:39,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:01:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:01:39,139 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 17:01:39,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852963501] [2020-11-09 17:01:39,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:01:39,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:01:39,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1332248832] [2020-11-09 17:01:39,141 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:01:39,142 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:01:39,144 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 17:01:39,144 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:01:39,149 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:01:39,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:01:39,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:01:39,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:01:39,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:01:39,153 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-11-09 17:01:39,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:01:39,195 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-11-09 17:01:39,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:01:39,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-09 17:01:39,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:01:39,199 INFO L225 Difference]: With dead ends: 217 [2020-11-09 17:01:39,200 INFO L226 Difference]: Without dead ends: 217 [2020-11-09 17:01:39,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:01:39,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-11-09 17:01:39,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-11-09 17:01:39,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-11-09 17:01:39,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-11-09 17:01:39,220 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-11-09 17:01:39,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:01:39,221 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-11-09 17:01:39,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:01:39,221 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-11-09 17:01:39,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:01:39,223 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:01:39,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:01:39,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:01:39,224 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:01:39,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:01:39,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1523104206, now seen corresponding path program 1 times [2020-11-09 17:01:39,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:01:39,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878898494] [2020-11-09 17:01:39,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:01:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:01:39,297 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 17:01:39,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878898494] [2020-11-09 17:01:39,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:01:39,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:01:39,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2119338603] [2020-11-09 17:01:39,299 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:01:39,300 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:01:39,304 INFO L252 McrAutomatonBuilder]: Finished intersection with 25 states and 36 transitions. [2020-11-09 17:01:39,304 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:01:39,437 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2430#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:01:39,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:01:39,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:01:39,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:01:39,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:01:39,440 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 5 states. [2020-11-09 17:01:39,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:01:39,516 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-11-09 17:01:39,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:01:39,517 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 17:01:39,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:01:39,520 INFO L225 Difference]: With dead ends: 136 [2020-11-09 17:01:39,521 INFO L226 Difference]: Without dead ends: 136 [2020-11-09 17:01:39,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:01:39,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-11-09 17:01:39,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-11-09 17:01:39,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-11-09 17:01:39,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-11-09 17:01:39,557 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-11-09 17:01:39,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:01:39,558 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-11-09 17:01:39,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:01:39,558 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-11-09 17:01:39,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:01:39,560 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:01:39,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:01:39,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:01:39,561 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:01:39,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:01:39,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1616090199, now seen corresponding path program 1 times [2020-11-09 17:01:39,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:01:39,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341820616] [2020-11-09 17:01:39,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:01:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:01:39,683 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 17:01:39,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341820616] [2020-11-09 17:01:39,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:01:39,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:01:39,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1848633113] [2020-11-09 17:01:39,684 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:01:39,686 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:01:39,693 INFO L252 McrAutomatonBuilder]: Finished intersection with 52 states and 90 transitions. [2020-11-09 17:01:39,693 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:01:39,932 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2844#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:01:39,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 17:01:39,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:01:39,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 17:01:39,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-11-09 17:01:39,934 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 6 states. [2020-11-09 17:01:39,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:01:39,987 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-11-09 17:01:39,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:01:39,987 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-09 17:01:39,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:01:39,989 INFO L225 Difference]: With dead ends: 109 [2020-11-09 17:01:39,989 INFO L226 Difference]: Without dead ends: 109 [2020-11-09 17:01:39,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-11-09 17:01:39,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-09 17:01:39,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-09 17:01:39,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-09 17:01:39,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-11-09 17:01:39,996 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-11-09 17:01:39,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:01:39,996 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-11-09 17:01:39,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 17:01:39,997 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-11-09 17:01:39,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 17:01:39,998 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:01:39,999 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 17:01:39,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:01:39,999 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:01:40,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:01:40,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1930604432, now seen corresponding path program 1 times [2020-11-09 17:01:40,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:01:40,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142871619] [2020-11-09 17:01:40,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:01:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:01:40,087 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 17:01:40,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142871619] [2020-11-09 17:01:40,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:01:40,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:01:40,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1316619230] [2020-11-09 17:01:40,088 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:01:40,091 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:01:40,102 INFO L252 McrAutomatonBuilder]: Finished intersection with 59 states and 101 transitions. [2020-11-09 17:01:40,103 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:01:40,112 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:01:40,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:01:40,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:01:40,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:01:40,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:01:40,114 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-11-09 17:01:40,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:01:40,152 INFO L93 Difference]: Finished difference Result 147 states and 317 transitions. [2020-11-09 17:01:40,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:01:40,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-09 17:01:40,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:01:40,153 INFO L225 Difference]: With dead ends: 147 [2020-11-09 17:01:40,154 INFO L226 Difference]: Without dead ends: 67 [2020-11-09 17:01:40,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 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 17:01:40,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-11-09 17:01:40,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-11-09 17:01:40,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-11-09 17:01:40,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 129 transitions. [2020-11-09 17:01:40,161 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 129 transitions. Word has length 18 [2020-11-09 17:01:40,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:01:40,161 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 129 transitions. [2020-11-09 17:01:40,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:01:40,162 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 129 transitions. [2020-11-09 17:01:40,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 17:01:40,163 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:01:40,163 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 17:01:40,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:01:40,164 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:01:40,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:01:40,164 INFO L82 PathProgramCache]: Analyzing trace with hash 30994256, now seen corresponding path program 2 times [2020-11-09 17:01:40,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:01:40,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632291045] [2020-11-09 17:01:40,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:01:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:01:40,249 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 17:01:40,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632291045] [2020-11-09 17:01:40,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:01:40,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:01:40,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [115947851] [2020-11-09 17:01:40,251 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:01:40,254 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:01:40,261 INFO L252 McrAutomatonBuilder]: Finished intersection with 37 states and 52 transitions. [2020-11-09 17:01:40,262 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:01:40,304 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:01:40,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:01:40,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:01:40,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:01:40,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:01:40,306 INFO L87 Difference]: Start difference. First operand 67 states and 129 transitions. Second operand 5 states. [2020-11-09 17:01:40,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:01:40,343 INFO L93 Difference]: Finished difference Result 85 states and 159 transitions. [2020-11-09 17:01:40,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:01:40,344 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-09 17:01:40,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:01:40,344 INFO L225 Difference]: With dead ends: 85 [2020-11-09 17:01:40,345 INFO L226 Difference]: Without dead ends: 63 [2020-11-09 17:01:40,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 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 17:01:40,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-09 17:01:40,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-11-09 17:01:40,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-11-09 17:01:40,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 121 transitions. [2020-11-09 17:01:40,348 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 121 transitions. Word has length 18 [2020-11-09 17:01:40,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:01:40,349 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 121 transitions. [2020-11-09 17:01:40,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:01:40,349 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 121 transitions. [2020-11-09 17:01:40,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 17:01:40,350 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:01:40,350 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 17:01:40,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:01:40,351 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:01:40,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:01:40,351 INFO L82 PathProgramCache]: Analyzing trace with hash 46641744, now seen corresponding path program 3 times [2020-11-09 17:01:40,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:01:40,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090395441] [2020-11-09 17:01:40,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:01:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:01:40,414 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 17:01:40,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090395441] [2020-11-09 17:01:40,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:01:40,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:01:40,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1630880093] [2020-11-09 17:01:40,416 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:01:40,418 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:01:40,425 INFO L252 McrAutomatonBuilder]: Finished intersection with 37 states and 49 transitions. [2020-11-09 17:01:40,426 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:01:40,430 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:01:40,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:01:40,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:01:40,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:01:40,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:01:40,432 INFO L87 Difference]: Start difference. First operand 63 states and 121 transitions. Second operand 5 states. [2020-11-09 17:01:40,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:01:40,469 INFO L93 Difference]: Finished difference Result 77 states and 143 transitions. [2020-11-09 17:01:40,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:01:40,469 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-09 17:01:40,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:01:40,470 INFO L225 Difference]: With dead ends: 77 [2020-11-09 17:01:40,470 INFO L226 Difference]: Without dead ends: 39 [2020-11-09 17:01:40,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 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 17:01:40,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-09 17:01:40,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-09 17:01:40,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-09 17:01:40,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 61 transitions. [2020-11-09 17:01:40,473 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 61 transitions. Word has length 18 [2020-11-09 17:01:40,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:01:40,474 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 61 transitions. [2020-11-09 17:01:40,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:01:40,474 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 61 transitions. [2020-11-09 17:01:40,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 17:01:40,475 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:01:40,475 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 17:01:40,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 17:01:40,476 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:01:40,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:01:40,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1564299214, now seen corresponding path program 4 times [2020-11-09 17:01:40,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:01:40,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130264045] [2020-11-09 17:01:40,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:01:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:01:40,541 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 17:01:40,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130264045] [2020-11-09 17:01:40,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:01:40,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:01:40,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [597288227] [2020-11-09 17:01:40,543 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:01:40,546 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:01:40,582 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 37 transitions. [2020-11-09 17:01:40,582 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:01:40,608 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:01:40,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:01:40,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:01:40,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:01:40,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:01:40,611 INFO L87 Difference]: Start difference. First operand 39 states and 61 transitions. Second operand 5 states. [2020-11-09 17:01:40,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:01:40,648 INFO L93 Difference]: Finished difference Result 59 states and 94 transitions. [2020-11-09 17:01:40,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:01:40,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-09 17:01:40,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:01:40,649 INFO L225 Difference]: With dead ends: 59 [2020-11-09 17:01:40,650 INFO L226 Difference]: Without dead ends: 37 [2020-11-09 17:01:40,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 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 17:01:40,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-09 17:01:40,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-09 17:01:40,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-09 17:01:40,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-11-09 17:01:40,654 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-11-09 17:01:40,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:01:40,654 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-11-09 17:01:40,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:01:40,655 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-11-09 17:01:40,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 17:01:40,656 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:01:40,656 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 17:01:40,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 17:01:40,656 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:01:40,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:01:40,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1971294494, now seen corresponding path program 5 times [2020-11-09 17:01:40,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:01:40,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278698897] [2020-11-09 17:01:40,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:01:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:01:40,713 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 17:01:40,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278698897] [2020-11-09 17:01:40,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:01:40,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:01:40,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [155558962] [2020-11-09 17:01:40,715 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:01:40,719 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:01:40,729 INFO L252 McrAutomatonBuilder]: Finished intersection with 43 states and 65 transitions. [2020-11-09 17:01:40,729 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:01:40,734 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:01:40,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:01:40,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:01:40,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:01:40,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:01:40,736 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-11-09 17:01:40,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:01:40,775 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-11-09 17:01:40,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:01:40,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-09 17:01:40,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:01:40,776 INFO L225 Difference]: With dead ends: 36 [2020-11-09 17:01:40,777 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:01:40,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 17:01:40,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:01:40,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:01:40,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:01:40,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:01:40,780 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-09 17:01:40,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:01:40,781 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:01:40,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:01:40,781 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:01:40,781 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:01:40,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 17:01:40,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:01:40 BasicIcfg [2020-11-09 17:01:40,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:01:40,792 INFO L168 Benchmark]: Toolchain (without parser) took 8435.12 ms. Allocated memory was 158.3 MB in the beginning and 243.3 MB in the end (delta: 84.9 MB). Free memory was 132.5 MB in the beginning and 196.9 MB in the end (delta: -64.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 8.0 GB. [2020-11-09 17:01:40,793 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 158.3 MB. Free memory is still 132.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:01:40,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.83 ms. Allocated memory is still 158.3 MB. Free memory was 131.8 MB in the beginning and 133.2 MB in the end (delta: -1.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 8.0 GB. [2020-11-09 17:01:40,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.68 ms. Allocated memory is still 158.3 MB. Free memory was 133.2 MB in the beginning and 131.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:01:40,796 INFO L168 Benchmark]: Boogie Preprocessor took 33.35 ms. Allocated memory is still 158.3 MB. Free memory was 131.6 MB in the beginning and 130.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:01:40,797 INFO L168 Benchmark]: RCFGBuilder took 588.06 ms. Allocated memory is still 158.3 MB. Free memory was 130.1 MB in the beginning and 107.5 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:01:40,798 INFO L168 Benchmark]: TraceAbstraction took 6984.78 ms. Allocated memory was 158.3 MB in the beginning and 243.3 MB in the end (delta: 84.9 MB). Free memory was 107.5 MB in the beginning and 196.9 MB in the end (delta: -89.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:01:40,802 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 158.3 MB. Free memory is still 132.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 723.83 ms. Allocated memory is still 158.3 MB. Free memory was 131.8 MB in the beginning and 133.2 MB in the end (delta: -1.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 91.68 ms. Allocated memory is still 158.3 MB. Free memory was 133.2 MB in the beginning and 131.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.35 ms. Allocated memory is still 158.3 MB. Free memory was 131.6 MB in the beginning and 130.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 588.06 ms. Allocated memory is still 158.3 MB. Free memory was 130.1 MB in the beginning and 107.5 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6984.78 ms. Allocated memory was 158.3 MB in the beginning and 243.3 MB in the end (delta: 84.9 MB). Free memory was 107.5 MB in the beginning and 196.9 MB in the end (delta: -89.4 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 778 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 58 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.4s, 85 PlacesBefore, 32 PlacesAfterwards, 78 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 3163 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: 6.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 160 SDtfs, 91 SDslu, 251 SDs, 0 SdLazy, 96 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 96 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 4324 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...