/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788 [2021-06-01 16:37:25,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-01 16:37:25,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-01 16:37:25,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-01 16:37:25,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-01 16:37:25,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-01 16:37:25,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-01 16:37:25,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-01 16:37:25,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-01 16:37:25,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-01 16:37:25,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-01 16:37:25,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-01 16:37:25,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-01 16:37:25,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-01 16:37:25,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-01 16:37:25,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-01 16:37:25,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-01 16:37:25,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-01 16:37:25,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-01 16:37:25,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-01 16:37:25,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-01 16:37:25,480 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-01 16:37:25,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-01 16:37:25,480 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-01 16:37:25,480 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-01 16:37:25,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-01 16:37:25,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-01 16:37:25,482 INFO L138 SettingsManager]: * Use SBE=true [2021-06-01 16:37:25,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-01 16:37:25,483 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-01 16:37:25,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-01 16:37:25,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-01 16:37:25,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-01 16:37:25,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-01 16:37:25,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-01 16:37:25,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-01 16:37:25,484 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-01 16:37:25,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-01 16:37:25,484 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-01 16:37:25,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-01 16:37:25,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-01 16:37:25,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-01 16:37:25,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-01 16:37:25,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-01 16:37:25,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-01 16:37:25,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-01 16:37:25,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-01 16:37:25,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-01 16:37:25,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-01 16:37:25,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-01 16:37:25,485 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-01 16:37:25,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-01 16:37:25,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-01 16:37:25,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-01 16:37:25,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-01 16:37:25,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-01 16:37:25,737 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-01 16:37:25,737 INFO L275 PluginConnector]: CDTParser initialized [2021-06-01 16:37:25,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2021-06-01 16:37:25,785 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f0345739/e5f9815ab4c14b49b0b2c928e7a0cc3b/FLAG7ab4961a6 [2021-06-01 16:37:26,209 INFO L306 CDTParser]: Found 1 translation units. [2021-06-01 16:37:26,209 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2021-06-01 16:37:26,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f0345739/e5f9815ab4c14b49b0b2c928e7a0cc3b/FLAG7ab4961a6 [2021-06-01 16:37:26,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f0345739/e5f9815ab4c14b49b0b2c928e7a0cc3b [2021-06-01 16:37:26,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-01 16:37:26,229 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-01 16:37:26,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-01 16:37:26,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-01 16:37:26,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-01 16:37:26,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 04:37:26" (1/1) ... [2021-06-01 16:37:26,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af8abac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:37:26, skipping insertion in model container [2021-06-01 16:37:26,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 04:37:26" (1/1) ... [2021-06-01 16:37:26,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-01 16:37:26,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-01 16:37:26,364 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i[950,963] [2021-06-01 16:37:26,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-01 16:37:26,514 INFO L203 MainTranslator]: Completed pre-run [2021-06-01 16:37:26,522 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i[950,963] [2021-06-01 16:37:26,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-01 16:37:26,599 INFO L208 MainTranslator]: Completed translation [2021-06-01 16:37:26,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:37:26 WrapperNode [2021-06-01 16:37:26,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-01 16:37:26,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-01 16:37:26,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-01 16:37:26,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-01 16:37:26,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:37:26" (1/1) ... [2021-06-01 16:37:26,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:37:26" (1/1) ... [2021-06-01 16:37:26,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-01 16:37:26,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-01 16:37:26,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-01 16:37:26,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-01 16:37:26,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:37:26" (1/1) ... [2021-06-01 16:37:26,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:37:26" (1/1) ... [2021-06-01 16:37:26,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:37:26" (1/1) ... [2021-06-01 16:37:26,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:37:26" (1/1) ... [2021-06-01 16:37:26,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:37:26" (1/1) ... [2021-06-01 16:37:26,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:37:26" (1/1) ... [2021-06-01 16:37:26,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:37:26" (1/1) ... [2021-06-01 16:37:26,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-01 16:37:26,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-01 16:37:26,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-01 16:37:26,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-01 16:37:26,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:37:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-01 16:37:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-01 16:37:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-01 16:37:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-01 16:37:26,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-01 16:37:26,698 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-01 16:37:26,699 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-01 16:37:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-01 16:37:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-01 16:37:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-01 16:37:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-01 16:37:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-01 16:37:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-01 16:37:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-01 16:37:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-01 16:37:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-01 16:37:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-01 16:37:26,701 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-01 16:37:26,948 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-01 16:37:26,948 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-01 16:37:26,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 04:37:26 BoogieIcfgContainer [2021-06-01 16:37:26,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-01 16:37:26,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-01 16:37:26,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-01 16:37:26,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-01 16:37:26,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.06 04:37:26" (1/3) ... [2021-06-01 16:37:26,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596c1f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 04:37:26, skipping insertion in model container [2021-06-01 16:37:26,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:37:26" (2/3) ... [2021-06-01 16:37:26,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596c1f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 04:37:26, skipping insertion in model container [2021-06-01 16:37:26,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 04:37:26" (3/3) ... [2021-06-01 16:37:26,954 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc.i [2021-06-01 16:37:26,958 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-01 16:37:26,958 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-01 16:37:26,958 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-01 16:37:26,958 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-01 16:37:26,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,980 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,980 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,980 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,980 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,981 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,982 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,982 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,982 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,983 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,983 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,983 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,983 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,984 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,984 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,985 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,985 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,985 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,985 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,985 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,985 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,985 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,985 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,985 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,986 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,987 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,987 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,993 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,993 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,993 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,993 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,995 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,995 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,995 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,995 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,997 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,997 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,998 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:26,998 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 16:37:27,000 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-01 16:37:27,013 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-01 16:37:27,040 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-01 16:37:27,040 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-01 16:37:27,041 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-01 16:37:27,041 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-01 16:37:27,041 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-01 16:37:27,041 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-01 16:37:27,041 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-01 16:37:27,041 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-01 16:37:27,052 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 103 transitions, 226 flow [2021-06-01 16:37:35,262 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 70046 states, 70044 states have (on average 4.422177488435841) internal successors, (309747), 70045 states have internal predecessors, (309747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:35,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 70046 states, 70044 states have (on average 4.422177488435841) internal successors, (309747), 70045 states have internal predecessors, (309747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:35,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-01 16:37:35,471 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:37:35,472 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:37:35,472 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:37:35,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:37:35,476 INFO L82 PathProgramCache]: Analyzing trace with hash -190192830, now seen corresponding path program 1 times [2021-06-01 16:37:35,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:37:35,481 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719939122] [2021-06-01 16:37:35,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:37:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:37:35,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:37:35,915 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:37:35,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719939122] [2021-06-01 16:37:35,916 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719939122] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:37:35,916 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:37:35,916 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-01 16:37:35,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087303612] [2021-06-01 16:37:35,919 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-01 16:37:35,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:37:35,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-01 16:37:35,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-01 16:37:36,004 INFO L87 Difference]: Start difference. First operand has 70046 states, 70044 states have (on average 4.422177488435841) internal successors, (309747), 70045 states have internal predecessors, (309747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:36,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:37:36,673 INFO L93 Difference]: Finished difference Result 93713 states and 406277 transitions. [2021-06-01 16:37:36,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-01 16:37:36,674 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-01 16:37:36,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:37:36,855 INFO L225 Difference]: With dead ends: 93713 [2021-06-01 16:37:36,856 INFO L226 Difference]: Without dead ends: 32316 [2021-06-01 16:37:36,857 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 100.9ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-01 16:37:37,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32316 states. [2021-06-01 16:37:38,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32316 to 32316. [2021-06-01 16:37:38,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32316 states, 32315 states have (on average 4.247779668884419) internal successors, (137267), 32315 states have internal predecessors, (137267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32316 states to 32316 states and 137267 transitions. [2021-06-01 16:37:38,685 INFO L78 Accepts]: Start accepts. Automaton has 32316 states and 137267 transitions. Word has length 59 [2021-06-01 16:37:38,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:37:38,686 INFO L482 AbstractCegarLoop]: Abstraction has 32316 states and 137267 transitions. [2021-06-01 16:37:38,686 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:38,686 INFO L276 IsEmpty]: Start isEmpty. Operand 32316 states and 137267 transitions. [2021-06-01 16:37:38,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-01 16:37:38,855 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:37:38,855 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:37:38,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-01 16:37:38,856 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:37:38,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:37:38,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1901105981, now seen corresponding path program 1 times [2021-06-01 16:37:38,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:37:38,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113645377] [2021-06-01 16:37:38,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:37:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:37:38,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:37:38,961 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:37:38,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113645377] [2021-06-01 16:37:38,962 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113645377] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:37:38,962 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:37:38,962 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-01 16:37:38,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354620509] [2021-06-01 16:37:38,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-01 16:37:38,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:37:38,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-01 16:37:38,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-01 16:37:38,964 INFO L87 Difference]: Start difference. First operand 32316 states and 137267 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:39,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:37:39,274 INFO L93 Difference]: Finished difference Result 36236 states and 152758 transitions. [2021-06-01 16:37:39,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-01 16:37:39,274 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-01 16:37:39,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:37:39,375 INFO L225 Difference]: With dead ends: 36236 [2021-06-01 16:37:39,375 INFO L226 Difference]: Without dead ends: 29376 [2021-06-01 16:37:39,376 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 79.0ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-01 16:37:39,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29376 states. [2021-06-01 16:37:40,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29376 to 29376. [2021-06-01 16:37:40,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29376 states, 29375 states have (on average 4.221106382978723) internal successors, (123995), 29375 states have internal predecessors, (123995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:40,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29376 states to 29376 states and 123995 transitions. [2021-06-01 16:37:40,336 INFO L78 Accepts]: Start accepts. Automaton has 29376 states and 123995 transitions. Word has length 61 [2021-06-01 16:37:40,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:37:40,337 INFO L482 AbstractCegarLoop]: Abstraction has 29376 states and 123995 transitions. [2021-06-01 16:37:40,337 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:40,337 INFO L276 IsEmpty]: Start isEmpty. Operand 29376 states and 123995 transitions. [2021-06-01 16:37:40,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-01 16:37:40,374 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:37:40,374 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:37:40,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-01 16:37:40,374 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:37:40,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:37:40,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1062827298, now seen corresponding path program 1 times [2021-06-01 16:37:40,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:37:40,375 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655108243] [2021-06-01 16:37:40,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:37:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:37:40,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:37:40,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:37:40,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655108243] [2021-06-01 16:37:40,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655108243] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:37:40,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:37:40,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-01 16:37:40,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477078457] [2021-06-01 16:37:40,481 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-01 16:37:40,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:37:40,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-01 16:37:40,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-01 16:37:40,482 INFO L87 Difference]: Start difference. First operand 29376 states and 123995 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:40,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:37:40,938 INFO L93 Difference]: Finished difference Result 40086 states and 167243 transitions. [2021-06-01 16:37:40,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-01 16:37:40,939 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-01 16:37:40,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:37:40,997 INFO L225 Difference]: With dead ends: 40086 [2021-06-01 16:37:40,998 INFO L226 Difference]: Without dead ends: 19506 [2021-06-01 16:37:40,998 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 122.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:37:41,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19506 states. [2021-06-01 16:37:41,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19506 to 19506. [2021-06-01 16:37:41,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19506 states, 19505 states have (on average 4.092284029735965) internal successors, (79820), 19505 states have internal predecessors, (79820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:41,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19506 states to 19506 states and 79820 transitions. [2021-06-01 16:37:41,563 INFO L78 Accepts]: Start accepts. Automaton has 19506 states and 79820 transitions. Word has length 63 [2021-06-01 16:37:41,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:37:41,564 INFO L482 AbstractCegarLoop]: Abstraction has 19506 states and 79820 transitions. [2021-06-01 16:37:41,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:41,564 INFO L276 IsEmpty]: Start isEmpty. Operand 19506 states and 79820 transitions. [2021-06-01 16:37:41,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-01 16:37:41,592 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:37:41,592 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:37:41,592 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-01 16:37:41,592 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:37:41,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:37:41,593 INFO L82 PathProgramCache]: Analyzing trace with hash -719271399, now seen corresponding path program 1 times [2021-06-01 16:37:41,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:37:41,593 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480566475] [2021-06-01 16:37:41,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:37:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:37:41,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:37:41,683 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:37:41,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480566475] [2021-06-01 16:37:41,683 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480566475] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:37:41,683 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:37:41,683 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-01 16:37:41,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047804999] [2021-06-01 16:37:41,683 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-01 16:37:41,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:37:41,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-01 16:37:41,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-01 16:37:41,684 INFO L87 Difference]: Start difference. First operand 19506 states and 79820 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:41,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:37:41,912 INFO L93 Difference]: Finished difference Result 28186 states and 115330 transitions. [2021-06-01 16:37:41,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-01 16:37:41,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-01 16:37:41,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:37:42,100 INFO L225 Difference]: With dead ends: 28186 [2021-06-01 16:37:42,100 INFO L226 Difference]: Without dead ends: 11911 [2021-06-01 16:37:42,100 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 102.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:37:42,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11911 states. [2021-06-01 16:37:42,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11911 to 11911. [2021-06-01 16:37:42,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11911 states, 11910 states have (on average 4.041813602015114) internal successors, (48138), 11910 states have internal predecessors, (48138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:42,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11911 states to 11911 states and 48138 transitions. [2021-06-01 16:37:42,350 INFO L78 Accepts]: Start accepts. Automaton has 11911 states and 48138 transitions. Word has length 66 [2021-06-01 16:37:42,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:37:42,350 INFO L482 AbstractCegarLoop]: Abstraction has 11911 states and 48138 transitions. [2021-06-01 16:37:42,350 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:42,350 INFO L276 IsEmpty]: Start isEmpty. Operand 11911 states and 48138 transitions. [2021-06-01 16:37:42,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-06-01 16:37:42,366 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:37:42,366 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:37:42,366 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-01 16:37:42,367 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:37:42,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:37:42,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1694784545, now seen corresponding path program 1 times [2021-06-01 16:37:42,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:37:42,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76595404] [2021-06-01 16:37:42,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:37:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:37:42,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:37:42,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:37:42,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76595404] [2021-06-01 16:37:42,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76595404] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:37:42,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:37:42,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-01 16:37:42,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571101808] [2021-06-01 16:37:42,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-01 16:37:42,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:37:42,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-01 16:37:42,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-01 16:37:42,488 INFO L87 Difference]: Start difference. First operand 11911 states and 48138 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:42,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:37:42,612 INFO L93 Difference]: Finished difference Result 13191 states and 52922 transitions. [2021-06-01 16:37:42,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-01 16:37:42,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-06-01 16:37:42,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:37:42,638 INFO L225 Difference]: With dead ends: 13191 [2021-06-01 16:37:42,638 INFO L226 Difference]: Without dead ends: 10951 [2021-06-01 16:37:42,638 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 73.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-01 16:37:42,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10951 states. [2021-06-01 16:37:42,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10951 to 10951. [2021-06-01 16:37:42,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10951 states, 10950 states have (on average 4.019178082191781) internal successors, (44010), 10950 states have internal predecessors, (44010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:42,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10951 states to 10951 states and 44010 transitions. [2021-06-01 16:37:42,994 INFO L78 Accepts]: Start accepts. Automaton has 10951 states and 44010 transitions. Word has length 67 [2021-06-01 16:37:42,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:37:42,995 INFO L482 AbstractCegarLoop]: Abstraction has 10951 states and 44010 transitions. [2021-06-01 16:37:42,995 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:42,995 INFO L276 IsEmpty]: Start isEmpty. Operand 10951 states and 44010 transitions. [2021-06-01 16:37:43,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-01 16:37:43,011 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:37:43,011 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:37:43,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-01 16:37:43,012 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:37:43,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:37:43,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1688661600, now seen corresponding path program 1 times [2021-06-01 16:37:43,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:37:43,012 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025197122] [2021-06-01 16:37:43,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:37:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:37:43,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:37:43,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:37:43,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025197122] [2021-06-01 16:37:43,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025197122] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:37:43,073 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:37:43,073 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-01 16:37:43,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183751949] [2021-06-01 16:37:43,073 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-01 16:37:43,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:37:43,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-01 16:37:43,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-01 16:37:43,074 INFO L87 Difference]: Start difference. First operand 10951 states and 44010 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:43,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:37:43,259 INFO L93 Difference]: Finished difference Result 18151 states and 72990 transitions. [2021-06-01 16:37:43,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-01 16:37:43,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-06-01 16:37:43,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:37:43,290 INFO L225 Difference]: With dead ends: 18151 [2021-06-01 16:37:43,290 INFO L226 Difference]: Without dead ends: 13351 [2021-06-01 16:37:43,290 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 112.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-01 16:37:43,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13351 states. [2021-06-01 16:37:43,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13351 to 10951. [2021-06-01 16:37:43,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10951 states, 10950 states have (on average 4.007488584474886) internal successors, (43882), 10950 states have internal predecessors, (43882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:43,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10951 states to 10951 states and 43882 transitions. [2021-06-01 16:37:43,706 INFO L78 Accepts]: Start accepts. Automaton has 10951 states and 43882 transitions. Word has length 69 [2021-06-01 16:37:43,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:37:43,706 INFO L482 AbstractCegarLoop]: Abstraction has 10951 states and 43882 transitions. [2021-06-01 16:37:43,706 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:43,706 INFO L276 IsEmpty]: Start isEmpty. Operand 10951 states and 43882 transitions. [2021-06-01 16:37:43,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-01 16:37:43,720 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:37:43,720 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:37:43,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-01 16:37:43,720 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:37:43,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:37:43,721 INFO L82 PathProgramCache]: Analyzing trace with hash -438389976, now seen corresponding path program 2 times [2021-06-01 16:37:43,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:37:43,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657963951] [2021-06-01 16:37:43,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:37:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:37:43,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:37:43,780 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:37:43,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657963951] [2021-06-01 16:37:43,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657963951] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:37:43,780 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:37:43,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-01 16:37:43,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588859306] [2021-06-01 16:37:43,781 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-01 16:37:43,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:37:43,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-01 16:37:43,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-01 16:37:43,781 INFO L87 Difference]: Start difference. First operand 10951 states and 43882 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:43,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:37:43,917 INFO L93 Difference]: Finished difference Result 14631 states and 58426 transitions. [2021-06-01 16:37:43,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-01 16:37:43,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-06-01 16:37:43,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:37:43,933 INFO L225 Difference]: With dead ends: 14631 [2021-06-01 16:37:43,934 INFO L226 Difference]: Without dead ends: 6971 [2021-06-01 16:37:43,934 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 82.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-01 16:37:43,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6971 states. [2021-06-01 16:37:44,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6971 to 6971. [2021-06-01 16:37:44,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6971 states, 6970 states have (on average 3.9176470588235293) internal successors, (27306), 6970 states have internal predecessors, (27306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:44,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6971 states to 6971 states and 27306 transitions. [2021-06-01 16:37:44,047 INFO L78 Accepts]: Start accepts. Automaton has 6971 states and 27306 transitions. Word has length 69 [2021-06-01 16:37:44,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:37:44,047 INFO L482 AbstractCegarLoop]: Abstraction has 6971 states and 27306 transitions. [2021-06-01 16:37:44,048 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:44,048 INFO L276 IsEmpty]: Start isEmpty. Operand 6971 states and 27306 transitions. [2021-06-01 16:37:44,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-01 16:37:44,056 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 16:37:44,056 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 16:37:44,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-01 16:37:44,056 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 16:37:44,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 16:37:44,056 INFO L82 PathProgramCache]: Analyzing trace with hash 461811338, now seen corresponding path program 1 times [2021-06-01 16:37:44,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 16:37:44,057 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005477691] [2021-06-01 16:37:44,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 16:37:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 16:37:44,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 16:37:44,108 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 16:37:44,108 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005477691] [2021-06-01 16:37:44,108 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005477691] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 16:37:44,108 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 16:37:44,108 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-01 16:37:44,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741810565] [2021-06-01 16:37:44,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-01 16:37:44,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 16:37:44,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-01 16:37:44,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-01 16:37:44,109 INFO L87 Difference]: Start difference. First operand 6971 states and 27306 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:44,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 16:37:44,201 INFO L93 Difference]: Finished difference Result 6331 states and 24714 transitions. [2021-06-01 16:37:44,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-01 16:37:44,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-06-01 16:37:44,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 16:37:44,202 INFO L225 Difference]: With dead ends: 6331 [2021-06-01 16:37:44,202 INFO L226 Difference]: Without dead ends: 0 [2021-06-01 16:37:44,202 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 74.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-01 16:37:44,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-01 16:37:44,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-01 16:37:44,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:44,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-01 16:37:44,202 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-06-01 16:37:44,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 16:37:44,202 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-01 16:37:44,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 16:37:44,203 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-01 16:37:44,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-01 16:37:44,203 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-01 16:37:44,204 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-01 16:37:44,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.06 04:37:44 BasicIcfg [2021-06-01 16:37:44,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-01 16:37:44,206 INFO L168 Benchmark]: Toolchain (without parser) took 17977.58 ms. Allocated memory was 358.6 MB in the beginning and 7.7 GB in the end (delta: 7.3 GB). Free memory was 320.8 MB in the beginning and 6.1 GB in the end (delta: -5.8 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-06-01 16:37:44,207 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 358.6 MB. Free memory was 338.8 MB in the beginning and 338.8 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-01 16:37:44,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.89 ms. Allocated memory is still 358.6 MB. Free memory was 320.6 MB in the beginning and 320.4 MB in the end (delta: 161.7 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-01 16:37:44,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.50 ms. Allocated memory is still 358.6 MB. Free memory was 320.4 MB in the beginning and 318.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-01 16:37:44,207 INFO L168 Benchmark]: Boogie Preprocessor took 14.41 ms. Allocated memory is still 358.6 MB. Free memory was 318.3 MB in the beginning and 317.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-01 16:37:44,208 INFO L168 Benchmark]: RCFGBuilder took 309.91 ms. Allocated memory is still 358.6 MB. Free memory was 317.3 MB in the beginning and 287.9 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-06-01 16:37:44,208 INFO L168 Benchmark]: TraceAbstraction took 17255.38 ms. Allocated memory was 358.6 MB in the beginning and 7.7 GB in the end (delta: 7.3 GB). Free memory was 287.9 MB in the beginning and 6.1 GB in the end (delta: -5.8 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.0 GB. [2021-06-01 16:37:44,209 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 358.6 MB. Free memory was 338.8 MB in the beginning and 338.8 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 369.89 ms. Allocated memory is still 358.6 MB. Free memory was 320.6 MB in the beginning and 320.4 MB in the end (delta: 161.7 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.50 ms. Allocated memory is still 358.6 MB. Free memory was 320.4 MB in the beginning and 318.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.41 ms. Allocated memory is still 358.6 MB. Free memory was 318.3 MB in the beginning and 317.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 309.91 ms. Allocated memory is still 358.6 MB. Free memory was 317.3 MB in the beginning and 287.9 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 17255.38 ms. Allocated memory was 358.6 MB in the beginning and 7.7 GB in the end (delta: 7.3 GB). Free memory was 287.9 MB in the beginning and 6.1 GB in the end (delta: -5.8 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 134 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17164.3ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 497.5ms, AutomataDifference: 2896.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8220.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1079 SDtfs, 1818 SDslu, 3732 SDs, 0 SdLazy, 255 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 153.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 747.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=70046occurred in iteration=0, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 4470.5ms AutomataMinimizationTime, 8 MinimizatonAttempts, 2400 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.4ms SsaConstructionTime, 150.2ms SatisfiabilityAnalysisTime, 760.4ms InterpolantComputationTime, 524 NumberOfCodeBlocks, 524 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 516 ConstructedInterpolants, 0 QuantifiedInterpolants, 2674 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...