/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/safe024_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:10:02,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:10:02,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:10:02,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:10:02,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:10:02,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:10:02,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:10:02,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:10:02,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:10:02,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:10:02,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:10:02,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:10:02,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:10:02,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:10:02,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:10:02,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:10:02,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:10:02,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:10:02,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:10:02,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:10:02,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:10:02,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:10:02,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:10:02,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:10:02,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 17:10:02,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:10:02,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:10:02,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:10:02,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:10:02,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:10:02,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:10:02,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:10:02,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:10:02,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:10:02,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:10:02,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:10:02,379 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 17:10:02,411 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:10:02,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:10:02,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:10:02,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:10:02,414 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:10:02,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:10:02,415 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:10:02,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:10:02,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:10:02,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:10:02,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:10:02,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:10:02,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:10:02,416 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:10:02,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:10:02,416 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:10:02,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:10:02,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:10:02,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:10:02,417 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:10:02,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:10:02,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:10:02,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:10:02,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:10:02,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:10:02,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:10:02,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:10:02,419 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:10:02,419 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:10:02,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:10:02,420 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:10:02,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:10:02,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:10:02,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:10:02,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:10:02,897 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:10:02,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2020-11-09 17:10:02,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f18c805eb/821366d4965948818c60de3f538874a0/FLAG156d8aeef [2020-11-09 17:10:03,641 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:10:03,642 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2020-11-09 17:10:03,662 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f18c805eb/821366d4965948818c60de3f538874a0/FLAG156d8aeef [2020-11-09 17:10:03,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f18c805eb/821366d4965948818c60de3f538874a0 [2020-11-09 17:10:03,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:10:03,972 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:10:03,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:10:03,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:10:03,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:10:03,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:10:03" (1/1) ... [2020-11-09 17:10:03,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f3e749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:03, skipping insertion in model container [2020-11-09 17:10:03,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:10:03" (1/1) ... [2020-11-09 17:10:03,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:10:04,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:10:04,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:10:04,587 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:10:04,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:10:04,789 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:10:04,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:04 WrapperNode [2020-11-09 17:10:04,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:10:04,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:10:04,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:10:04,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:10:04,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:04" (1/1) ... [2020-11-09 17:10:04,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:04" (1/1) ... [2020-11-09 17:10:04,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:10:04,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:10:04,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:10:04,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:10:04,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:04" (1/1) ... [2020-11-09 17:10:04,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:04" (1/1) ... [2020-11-09 17:10:04,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:04" (1/1) ... [2020-11-09 17:10:04,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:04" (1/1) ... [2020-11-09 17:10:04,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:04" (1/1) ... [2020-11-09 17:10:04,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:04" (1/1) ... [2020-11-09 17:10:04,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:04" (1/1) ... [2020-11-09 17:10:04,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:10:04,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:10:04,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:10:04,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:10:04,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:04" (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 17:10:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:10:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:10:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:10:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:10:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:10:05,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:10:05,049 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:10:05,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:10:05,050 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:10:05,050 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:10:05,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:10:05,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:10:05,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:10:05,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:10:05,053 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 17:10:05,546 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:10:05,546 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:10:05,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:10:05 BoogieIcfgContainer [2020-11-09 17:10:05,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:10:05,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:10:05,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:10:05,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:10:05,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:10:03" (1/3) ... [2020-11-09 17:10:05,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c118b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:10:05, skipping insertion in model container [2020-11-09 17:10:05,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:04" (2/3) ... [2020-11-09 17:10:05,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c118b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:10:05, skipping insertion in model container [2020-11-09 17:10:05,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:10:05" (3/3) ... [2020-11-09 17:10:05,558 INFO L111 eAbstractionObserver]: Analyzing ICFG safe024_tso.opt.i [2020-11-09 17:10:05,577 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:10:05,577 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:10:05,581 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:10:05,582 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:10:05,615 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,616 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,616 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,616 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,617 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,617 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,617 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,617 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,618 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,618 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,618 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,619 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,620 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,620 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,620 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,620 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,620 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,621 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,621 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,621 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,621 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,622 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,622 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,622 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,623 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,623 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,623 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,623 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,623 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,624 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,624 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,624 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,625 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,625 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,627 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,627 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,628 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,628 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,635 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,636 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,642 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,642 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:10:05,645 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:10:05,660 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:10:05,686 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:10:05,686 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:10:05,687 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:10:05,687 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:10:05,687 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:10:05,687 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:10:05,687 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:10:05,687 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:10:05,702 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:10:05,703 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 17:10:05,707 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 17:10:05,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-11-09 17:10:05,763 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-11-09 17:10:05,764 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:10:05,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 17:10:05,773 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 17:10:08,057 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-09 17:10:08,237 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-09 17:10:09,224 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-09 17:10:09,439 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 25 [2020-11-09 17:10:09,934 WARN L194 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 17:10:10,062 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 17:10:10,325 WARN L194 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 17:10:10,463 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 17:10:10,587 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-11-09 17:10:10,752 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-11-09 17:10:10,824 INFO L131 LiptonReduction]: Checked pairs total: 3412 [2020-11-09 17:10:10,825 INFO L133 LiptonReduction]: Total number of compositions: 77 [2020-11-09 17:10:10,832 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 17:10:10,863 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 17:10:10,865 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 17:10:10,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:10:10,873 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:10,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:10,874 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:10,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:10,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1698580066, now seen corresponding path program 1 times [2020-11-09 17:10:10,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:10,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815124564] [2020-11-09 17:10:10,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:11,154 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 17:10:11,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815124564] [2020-11-09 17:10:11,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:11,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:10:11,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1395245600] [2020-11-09 17:10:11,158 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:11,161 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:11,176 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 17:10:11,177 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:11,182 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:11,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:10:11,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:11,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:10:11,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:10:11,203 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-11-09 17:10:11,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:11,240 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-11-09 17:10:11,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:10:11,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 17:10:11,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:11,258 INFO L225 Difference]: With dead ends: 282 [2020-11-09 17:10:11,258 INFO L226 Difference]: Without dead ends: 218 [2020-11-09 17:10:11,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:10:11,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-09 17:10:11,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-09 17:10:11,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-09 17:10:11,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-11-09 17:10:11,329 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-11-09 17:10:11,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:11,331 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-11-09 17:10:11,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:10:11,331 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-11-09 17:10:11,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:10:11,332 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:11,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:11,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:10:11,333 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:11,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:11,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1116373545, now seen corresponding path program 1 times [2020-11-09 17:10:11,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:11,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365350521] [2020-11-09 17:10:11,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:11,435 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 17:10:11,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365350521] [2020-11-09 17:10:11,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:11,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:10:11,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [395314544] [2020-11-09 17:10:11,437 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:11,438 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:11,440 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-11-09 17:10:11,440 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:11,450 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:11,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:10:11,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:11,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:10:11,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:10:11,452 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-11-09 17:10:11,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:11,483 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-11-09 17:10:11,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:10:11,484 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 17:10:11,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:11,486 INFO L225 Difference]: With dead ends: 242 [2020-11-09 17:10:11,486 INFO L226 Difference]: Without dead ends: 146 [2020-11-09 17:10:11,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:10:11,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-09 17:10:11,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-11-09 17:10:11,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-09 17:10:11,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-11-09 17:10:11,503 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-11-09 17:10:11,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:11,503 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-11-09 17:10:11,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:10:11,504 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-11-09 17:10:11,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:10:11,505 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:11,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:11,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:10:11,506 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:11,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:11,506 INFO L82 PathProgramCache]: Analyzing trace with hash -906978528, now seen corresponding path program 1 times [2020-11-09 17:10:11,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:11,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752704452] [2020-11-09 17:10:11,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:11,667 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 17:10:11,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752704452] [2020-11-09 17:10:11,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:11,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:10:11,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1470570662] [2020-11-09 17:10:11,670 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:11,672 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:11,677 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 17:10:11,677 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:11,724 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:10:11,768 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:10:11,811 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:10:11,851 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1951#(not (= 3 ~__unbuffered_cnt~0))] [2020-11-09 17:10:11,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:10:11,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:11,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:10:11,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:10:11,853 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 5 states. [2020-11-09 17:10:11,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:11,924 INFO L93 Difference]: Finished difference Result 137 states and 312 transitions. [2020-11-09 17:10:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:10:11,925 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-09 17:10:11,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:11,926 INFO L225 Difference]: With dead ends: 137 [2020-11-09 17:10:11,926 INFO L226 Difference]: Without dead ends: 97 [2020-11-09 17:10:11,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:10:11,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-11-09 17:10:11,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-11-09 17:10:11,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-09 17:10:11,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-11-09 17:10:11,934 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 11 [2020-11-09 17:10:11,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:11,934 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-11-09 17:10:11,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:10:11,934 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-11-09 17:10:11,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:10:11,936 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:11,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:11,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:10:11,936 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:11,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:11,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1529886427, now seen corresponding path program 1 times [2020-11-09 17:10:11,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:11,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194237897] [2020-11-09 17:10:11,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:12,052 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 17:10:12,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194237897] [2020-11-09 17:10:12,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:12,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:10:12,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1915547287] [2020-11-09 17:10:12,053 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:12,055 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:12,059 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-11-09 17:10:12,059 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:12,135 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2293#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:10:12,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 17:10:12,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:12,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 17:10:12,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:10:12,137 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 7 states. [2020-11-09 17:10:12,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:12,230 INFO L93 Difference]: Finished difference Result 92 states and 190 transitions. [2020-11-09 17:10:12,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:10:12,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-11-09 17:10:12,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:12,232 INFO L225 Difference]: With dead ends: 92 [2020-11-09 17:10:12,232 INFO L226 Difference]: Without dead ends: 84 [2020-11-09 17:10:12,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:10:12,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-11-09 17:10:12,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-11-09 17:10:12,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-09 17:10:12,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2020-11-09 17:10:12,246 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 14 [2020-11-09 17:10:12,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:12,246 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2020-11-09 17:10:12,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 17:10:12,247 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-11-09 17:10:12,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:10:12,248 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:12,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:12,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:10:12,249 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:12,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:12,249 INFO L82 PathProgramCache]: Analyzing trace with hash 212367058, now seen corresponding path program 1 times [2020-11-09 17:10:12,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:12,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715769166] [2020-11-09 17:10:12,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:12,304 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 17:10:12,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715769166] [2020-11-09 17:10:12,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:12,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:10:12,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [521188522] [2020-11-09 17:10:12,305 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:12,308 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:12,315 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2020-11-09 17:10:12,315 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:12,437 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:12,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:10:12,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:12,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:10:12,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:10:12,439 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states. [2020-11-09 17:10:12,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:12,456 INFO L93 Difference]: Finished difference Result 97 states and 197 transitions. [2020-11-09 17:10:12,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:10:12,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:10:12,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:12,457 INFO L225 Difference]: With dead ends: 97 [2020-11-09 17:10:12,457 INFO L226 Difference]: Without dead ends: 36 [2020-11-09 17:10:12,458 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 17:10:12,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-09 17:10:12,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-09 17:10:12,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-09 17:10:12,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-11-09 17:10:12,460 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 17 [2020-11-09 17:10:12,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:12,461 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-11-09 17:10:12,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:10:12,461 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-11-09 17:10:12,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:10:12,462 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:12,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:12,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:10:12,462 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:12,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:12,463 INFO L82 PathProgramCache]: Analyzing trace with hash 671694040, now seen corresponding path program 2 times [2020-11-09 17:10:12,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:12,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263891117] [2020-11-09 17:10:12,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:12,506 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 17:10:12,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263891117] [2020-11-09 17:10:12,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:12,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:10:12,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [873560242] [2020-11-09 17:10:12,508 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:12,510 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:12,514 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-11-09 17:10:12,515 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:12,556 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:12,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:10:12,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:12,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:10:12,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:10:12,558 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-11-09 17:10:12,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:12,571 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-11-09 17:10:12,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:10:12,571 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:10:12,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:12,571 INFO L225 Difference]: With dead ends: 35 [2020-11-09 17:10:12,571 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:10:12,572 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 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 17:10:12,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:10:12,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:10:12,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:10:12,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:10:12,573 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 17:10:12,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:12,573 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:10:12,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:10:12,573 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:10:12,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:10:12,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:10:12,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:10:12 BasicIcfg [2020-11-09 17:10:12,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:10:12,579 INFO L168 Benchmark]: Toolchain (without parser) took 8612.18 ms. Allocated memory was 163.6 MB in the beginning and 243.3 MB in the end (delta: 79.7 MB). Free memory was 137.5 MB in the beginning and 145.2 MB in the end (delta: -7.7 MB). Peak memory consumption was 72.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:12,579 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 163.6 MB. Free memory is still 135.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:10:12,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 815.86 ms. Allocated memory is still 163.6 MB. Free memory was 137.0 MB in the beginning and 138.9 MB in the end (delta: -1.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:12,581 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.55 ms. Allocated memory is still 163.6 MB. Free memory was 138.9 MB in the beginning and 136.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:12,582 INFO L168 Benchmark]: Boogie Preprocessor took 58.24 ms. Allocated memory is still 163.6 MB. Free memory was 136.8 MB in the beginning and 135.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:12,583 INFO L168 Benchmark]: RCFGBuilder took 592.82 ms. Allocated memory is still 163.6 MB. Free memory was 135.3 MB in the beginning and 112.7 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:12,584 INFO L168 Benchmark]: TraceAbstraction took 7027.00 ms. Allocated memory was 163.6 MB in the beginning and 243.3 MB in the end (delta: 79.7 MB). Free memory was 112.2 MB in the beginning and 145.2 MB in the end (delta: -33.0 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:12,588 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 163.6 MB. Free memory is still 135.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 815.86 ms. Allocated memory is still 163.6 MB. Free memory was 137.0 MB in the beginning and 138.9 MB in the end (delta: -1.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 99.55 ms. Allocated memory is still 163.6 MB. Free memory was 138.9 MB in the beginning and 136.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 58.24 ms. Allocated memory is still 163.6 MB. Free memory was 136.8 MB in the beginning and 135.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 592.82 ms. Allocated memory is still 163.6 MB. Free memory was 135.3 MB in the beginning and 112.7 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7027.00 ms. Allocated memory was 163.6 MB in the beginning and 243.3 MB in the end (delta: 79.7 MB). Free memory was 112.2 MB in the beginning and 145.2 MB in the end (delta: -33.0 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 818 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 65 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.1s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 77 TotalNumberOfCompositions, 3412 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, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 117 SDtfs, 111 SDslu, 169 SDs, 0 SdLazy, 80 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2638 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...