/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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:05:31,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:05:31,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:05:31,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 10:05:31,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:05:31,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:05:31,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:05:31,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:05:31,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:05:31,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:05:31,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:05:31,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:05:31,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:05:31,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:05:31,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:05:31,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:05:31,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 10:05:31,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:05:31,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:05:31,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:05:31,529 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-Separate.epf [2021-06-05 10:05:31,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:05:31,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:05:31,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:05:31,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:05:31,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:05:31,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:05:31,550 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:05:31,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:05:31,551 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:05:31,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:05:31,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:05:31,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:05:31,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:05:31,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:05:31,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:05:31,552 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:05:31,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:05:31,552 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:05:31,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:05:31,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:05:31,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:05:31,553 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:05:31,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:05:31,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:05:31,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:05:31,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:05:31,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:05:31,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:05:31,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:05:31,554 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:05:31,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:05:31,554 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:05:31,554 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:05:31,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:05:31,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:05:31,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:05:31,846 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:05:31,847 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:05:31,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2021-06-05 10:05:31,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b2f2c319/b978c66bb6324df6a72d4d0453c2150a/FLAGfe348f96f [2021-06-05 10:05:32,441 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:05:32,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2021-06-05 10:05:32,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b2f2c319/b978c66bb6324df6a72d4d0453c2150a/FLAGfe348f96f [2021-06-05 10:05:32,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b2f2c319/b978c66bb6324df6a72d4d0453c2150a [2021-06-05 10:05:32,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:05:32,913 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:05:32,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:05:32,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:05:32,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:05:32,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:05:32" (1/1) ... [2021-06-05 10:05:32,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e70586b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:32, skipping insertion in model container [2021-06-05 10:05:32,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:05:32" (1/1) ... [2021-06-05 10:05:32,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:05:33,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:05:33,196 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/safe008_tso.oepc.i[950,963] [2021-06-05 10:05:33,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:05:33,336 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:05:33,346 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/safe008_tso.oepc.i[950,963] [2021-06-05 10:05:33,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:05:33,446 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:05:33,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33 WrapperNode [2021-06-05 10:05:33,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:05:33,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:05:33,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:05:33,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:05:33,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:05:33,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:05:33,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:05:33,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:05:33,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:05:33,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:05:33,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:05:33,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:05:33,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:05:33,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:05:33,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:05:33,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:05:33,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:05:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:05:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:05:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:05:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:05:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:05:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:05:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:05:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:05:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:05:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:05:33,615 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:05:34,059 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:05:34,060 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:05:34,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:05:34 BoogieIcfgContainer [2021-06-05 10:05:34,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:05:34,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:05:34,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:05:34,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:05:34,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:05:32" (1/3) ... [2021-06-05 10:05:34,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3fa36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:05:34, skipping insertion in model container [2021-06-05 10:05:34,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (2/3) ... [2021-06-05 10:05:34,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3fa36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:05:34, skipping insertion in model container [2021-06-05 10:05:34,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:05:34" (3/3) ... [2021-06-05 10:05:34,069 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.oepc.i [2021-06-05 10:05:34,074 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:05:34,075 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:05:34,075 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:05:34,075 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:05:34,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,109 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,110 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,110 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,110 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,111 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,112 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,112 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,113 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,113 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,115 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,116 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,120 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,120 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,121 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,121 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,122 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,122 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,123 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,123 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,127 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,127 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,127 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,127 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,133 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,133 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,135 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,136 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,136 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,136 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,140 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:05:34,161 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 10:05:34,186 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:05:34,186 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:05:34,186 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:05:34,186 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:05:34,186 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:05:34,187 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:05:34,187 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:05:34,187 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:05:34,199 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-05 10:05:34,703 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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) [2021-06-05 10:05:34,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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) [2021-06-05 10:05:34,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 10:05:34,773 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:34,773 INFO L521 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] [2021-06-05 10:05:34,774 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:34,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:34,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1432389661, now seen corresponding path program 1 times [2021-06-05 10:05:34,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:34,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594234316] [2021-06-05 10:05:34,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:35,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:05:35,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:35,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594234316] [2021-06-05 10:05:35,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594234316] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:35,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:35,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:05:35,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891626087] [2021-06-05 10:05:35,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:05:35,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:35,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:05:35,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:05:35,413 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-06-05 10:05:35,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:35,982 INFO L93 Difference]: Finished difference Result 17683 states and 60730 transitions. [2021-06-05 10:05:35,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:05:35,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2021-06-05 10:05:35,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:36,045 INFO L225 Difference]: With dead ends: 17683 [2021-06-05 10:05:36,046 INFO L226 Difference]: Without dead ends: 5788 [2021-06-05 10:05:36,047 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 369.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:05:36,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2021-06-05 10:05:36,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 4948. [2021-06-05 10:05:36,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4948 states, 4947 states have (on average 3.3480897513644634) internal successors, (16563), 4947 states have internal predecessors, (16563), 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) [2021-06-05 10:05:36,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4948 states to 4948 states and 16563 transitions. [2021-06-05 10:05:36,456 INFO L78 Accepts]: Start accepts. Automaton has 4948 states and 16563 transitions. Word has length 49 [2021-06-05 10:05:36,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:36,457 INFO L482 AbstractCegarLoop]: Abstraction has 4948 states and 16563 transitions. [2021-06-05 10:05:36,457 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-06-05 10:05:36,457 INFO L276 IsEmpty]: Start isEmpty. Operand 4948 states and 16563 transitions. [2021-06-05 10:05:36,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 10:05:36,515 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:36,515 INFO L521 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] [2021-06-05 10:05:36,515 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:05:36,516 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:36,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:36,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1311501732, now seen corresponding path program 1 times [2021-06-05 10:05:36,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:36,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420627667] [2021-06-05 10:05:36,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:05:36,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:36,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420627667] [2021-06-05 10:05:36,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420627667] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:36,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:36,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:05:36,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750501343] [2021-06-05 10:05:36,682 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:05:36,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:36,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:05:36,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:05:36,683 INFO L87 Difference]: Start difference. First operand 4948 states and 16563 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2021-06-05 10:05:36,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:36,874 INFO L93 Difference]: Finished difference Result 5508 states and 18296 transitions. [2021-06-05 10:05:36,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:05:36,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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 51 [2021-06-05 10:05:36,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:36,902 INFO L225 Difference]: With dead ends: 5508 [2021-06-05 10:05:36,903 INFO L226 Difference]: Without dead ends: 4528 [2021-06-05 10:05:36,903 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:05:36,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4528 states. [2021-06-05 10:05:37,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4528 to 4528. [2021-06-05 10:05:37,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4528 states, 4527 states have (on average 3.3194168323392974) internal successors, (15027), 4527 states have internal predecessors, (15027), 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) [2021-06-05 10:05:37,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 15027 transitions. [2021-06-05 10:05:37,092 INFO L78 Accepts]: Start accepts. Automaton has 4528 states and 15027 transitions. Word has length 51 [2021-06-05 10:05:37,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:37,093 INFO L482 AbstractCegarLoop]: Abstraction has 4528 states and 15027 transitions. [2021-06-05 10:05:37,093 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2021-06-05 10:05:37,093 INFO L276 IsEmpty]: Start isEmpty. Operand 4528 states and 15027 transitions. [2021-06-05 10:05:37,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 10:05:37,107 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:37,107 INFO L521 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] [2021-06-05 10:05:37,108 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:05:37,108 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:37,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:37,115 INFO L82 PathProgramCache]: Analyzing trace with hash 742880451, now seen corresponding path program 1 times [2021-06-05 10:05:37,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:37,116 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644505583] [2021-06-05 10:05:37,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:37,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:05:37,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:37,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644505583] [2021-06-05 10:05:37,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644505583] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:37,315 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:37,315 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:05:37,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817762660] [2021-06-05 10:05:37,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:05:37,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:37,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:05:37,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:05:37,317 INFO L87 Difference]: Start difference. First operand 4528 states and 15027 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-06-05 10:05:37,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:37,815 INFO L93 Difference]: Finished difference Result 7248 states and 23783 transitions. [2021-06-05 10:05:37,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 10:05:37,816 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-06-05 10:05:37,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:37,851 INFO L225 Difference]: With dead ends: 7248 [2021-06-05 10:05:37,852 INFO L226 Difference]: Without dead ends: 5848 [2021-06-05 10:05:37,852 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 444.3ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:05:37,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5848 states. [2021-06-05 10:05:37,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5848 to 4608. [2021-06-05 10:05:37,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4608 states, 4607 states have (on average 3.3169090514434556) internal successors, (15281), 4607 states have internal predecessors, (15281), 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) [2021-06-05 10:05:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4608 states to 4608 states and 15281 transitions. [2021-06-05 10:05:38,012 INFO L78 Accepts]: Start accepts. Automaton has 4608 states and 15281 transitions. Word has length 53 [2021-06-05 10:05:38,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:38,012 INFO L482 AbstractCegarLoop]: Abstraction has 4608 states and 15281 transitions. [2021-06-05 10:05:38,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-06-05 10:05:38,013 INFO L276 IsEmpty]: Start isEmpty. Operand 4608 states and 15281 transitions. [2021-06-05 10:05:38,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 10:05:38,024 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:38,025 INFO L521 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] [2021-06-05 10:05:38,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:05:38,025 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:38,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:38,026 INFO L82 PathProgramCache]: Analyzing trace with hash -904737545, now seen corresponding path program 2 times [2021-06-05 10:05:38,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:38,027 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368623334] [2021-06-05 10:05:38,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:38,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:05:38,245 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:38,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368623334] [2021-06-05 10:05:38,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368623334] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:38,246 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:38,246 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:05:38,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171707465] [2021-06-05 10:05:38,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:05:38,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:38,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:05:38,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:05:38,247 INFO L87 Difference]: Start difference. First operand 4608 states and 15281 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-06-05 10:05:38,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:38,681 INFO L93 Difference]: Finished difference Result 8307 states and 27134 transitions. [2021-06-05 10:05:38,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 10:05:38,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-06-05 10:05:38,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:38,702 INFO L225 Difference]: With dead ends: 8307 [2021-06-05 10:05:38,702 INFO L226 Difference]: Without dead ends: 6107 [2021-06-05 10:05:38,702 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 369.2ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:05:38,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6107 states. [2021-06-05 10:05:38,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6107 to 4212. [2021-06-05 10:05:38,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4212 states, 4211 states have (on average 3.2825932082640703) internal successors, (13823), 4211 states have internal predecessors, (13823), 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) [2021-06-05 10:05:38,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4212 states to 4212 states and 13823 transitions. [2021-06-05 10:05:38,887 INFO L78 Accepts]: Start accepts. Automaton has 4212 states and 13823 transitions. Word has length 53 [2021-06-05 10:05:38,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:38,888 INFO L482 AbstractCegarLoop]: Abstraction has 4212 states and 13823 transitions. [2021-06-05 10:05:38,888 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-06-05 10:05:38,888 INFO L276 IsEmpty]: Start isEmpty. Operand 4212 states and 13823 transitions. [2021-06-05 10:05:38,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:05:38,897 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:38,897 INFO L521 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] [2021-06-05 10:05:38,897 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:05:38,898 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:38,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:38,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1490806147, now seen corresponding path program 1 times [2021-06-05 10:05:38,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:38,899 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659440197] [2021-06-05 10:05:38,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:38,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:05:38,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:38,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659440197] [2021-06-05 10:05:38,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659440197] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:38,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:38,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:05:38,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762268738] [2021-06-05 10:05:38,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:05:38,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:38,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:05:38,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:05:38,989 INFO L87 Difference]: Start difference. First operand 4212 states and 13823 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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) [2021-06-05 10:05:39,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:39,140 INFO L93 Difference]: Finished difference Result 6222 states and 20044 transitions. [2021-06-05 10:05:39,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:05:39,141 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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 54 [2021-06-05 10:05:39,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:39,151 INFO L225 Difference]: With dead ends: 6222 [2021-06-05 10:05:39,152 INFO L226 Difference]: Without dead ends: 3293 [2021-06-05 10:05:39,152 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 126.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:05:39,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3293 states. [2021-06-05 10:05:39,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3293 to 2813. [2021-06-05 10:05:39,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2813 states, 2812 states have (on average 3.15398293029872) internal successors, (8869), 2812 states have internal predecessors, (8869), 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) [2021-06-05 10:05:39,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 8869 transitions. [2021-06-05 10:05:39,229 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 8869 transitions. Word has length 54 [2021-06-05 10:05:39,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:39,230 INFO L482 AbstractCegarLoop]: Abstraction has 2813 states and 8869 transitions. [2021-06-05 10:05:39,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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) [2021-06-05 10:05:39,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 8869 transitions. [2021-06-05 10:05:39,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 10:05:39,236 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:39,236 INFO L521 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] [2021-06-05 10:05:39,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:05:39,237 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:39,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:39,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1323776860, now seen corresponding path program 1 times [2021-06-05 10:05:39,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:39,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769849677] [2021-06-05 10:05:39,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:39,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:05:39,335 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:39,335 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769849677] [2021-06-05 10:05:39,335 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769849677] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:39,336 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:39,336 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:05:39,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472729884] [2021-06-05 10:05:39,336 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:05:39,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:39,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:05:39,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:05:39,340 INFO L87 Difference]: Start difference. First operand 2813 states and 8869 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2021-06-05 10:05:39,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:39,488 INFO L93 Difference]: Finished difference Result 3221 states and 10023 transitions. [2021-06-05 10:05:39,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:05:39,489 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2021-06-05 10:05:39,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:39,493 INFO L225 Difference]: With dead ends: 3221 [2021-06-05 10:05:39,493 INFO L226 Difference]: Without dead ends: 1461 [2021-06-05 10:05:39,494 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 122.7ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:05:39,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2021-06-05 10:05:39,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1461. [2021-06-05 10:05:39,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1460 states have (on average 2.9404109589041094) internal successors, (4293), 1460 states have internal predecessors, (4293), 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) [2021-06-05 10:05:39,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4293 transitions. [2021-06-05 10:05:39,530 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4293 transitions. Word has length 56 [2021-06-05 10:05:39,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:39,531 INFO L482 AbstractCegarLoop]: Abstraction has 1461 states and 4293 transitions. [2021-06-05 10:05:39,531 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2021-06-05 10:05:39,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4293 transitions. [2021-06-05 10:05:39,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 10:05:39,535 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:39,535 INFO L521 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] [2021-06-05 10:05:39,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:05:39,535 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:39,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:39,536 INFO L82 PathProgramCache]: Analyzing trace with hash -4942770, now seen corresponding path program 1 times [2021-06-05 10:05:39,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:39,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344948505] [2021-06-05 10:05:39,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:39,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:05:39,614 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:39,617 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344948505] [2021-06-05 10:05:39,617 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344948505] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:39,617 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:39,617 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:05:39,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750581438] [2021-06-05 10:05:39,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:05:39,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:39,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:05:39,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:05:39,619 INFO L87 Difference]: Start difference. First operand 1461 states and 4293 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2021-06-05 10:05:39,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:39,722 INFO L93 Difference]: Finished difference Result 1662 states and 4844 transitions. [2021-06-05 10:05:39,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:05:39,723 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 57 [2021-06-05 10:05:39,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:39,727 INFO L225 Difference]: With dead ends: 1662 [2021-06-05 10:05:39,727 INFO L226 Difference]: Without dead ends: 1326 [2021-06-05 10:05:39,727 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 88.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:05:39,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2021-06-05 10:05:39,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1326. [2021-06-05 10:05:39,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1325 states have (on average 2.900377358490566) internal successors, (3843), 1325 states have internal predecessors, (3843), 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) [2021-06-05 10:05:39,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 3843 transitions. [2021-06-05 10:05:39,761 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 3843 transitions. Word has length 57 [2021-06-05 10:05:39,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:39,761 INFO L482 AbstractCegarLoop]: Abstraction has 1326 states and 3843 transitions. [2021-06-05 10:05:39,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2021-06-05 10:05:39,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 3843 transitions. [2021-06-05 10:05:39,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 10:05:39,764 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:39,764 INFO L521 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] [2021-06-05 10:05:39,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:05:39,764 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:39,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:39,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1433061019, now seen corresponding path program 1 times [2021-06-05 10:05:39,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:39,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216160415] [2021-06-05 10:05:39,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:39,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:05:39,844 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:39,844 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216160415] [2021-06-05 10:05:39,844 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216160415] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:39,844 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:39,844 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:05:39,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322905608] [2021-06-05 10:05:39,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:05:39,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:39,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:05:39,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:05:39,846 INFO L87 Difference]: Start difference. First operand 1326 states and 3843 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2021-06-05 10:05:39,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:39,959 INFO L93 Difference]: Finished difference Result 1218 states and 3423 transitions. [2021-06-05 10:05:39,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:05:39,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 58 [2021-06-05 10:05:39,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:39,962 INFO L225 Difference]: With dead ends: 1218 [2021-06-05 10:05:39,962 INFO L226 Difference]: Without dead ends: 966 [2021-06-05 10:05:39,963 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 101.5ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:05:39,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2021-06-05 10:05:39,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2021-06-05 10:05:39,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 965 states have (on average 2.75440414507772) internal successors, (2658), 965 states have internal predecessors, (2658), 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) [2021-06-05 10:05:39,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 2658 transitions. [2021-06-05 10:05:39,984 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 2658 transitions. Word has length 58 [2021-06-05 10:05:39,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:39,984 INFO L482 AbstractCegarLoop]: Abstraction has 966 states and 2658 transitions. [2021-06-05 10:05:39,985 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2021-06-05 10:05:39,985 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 2658 transitions. [2021-06-05 10:05:39,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-05 10:05:39,987 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:39,987 INFO L521 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] [2021-06-05 10:05:39,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:05:39,987 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:39,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:39,988 INFO L82 PathProgramCache]: Analyzing trace with hash -385159466, now seen corresponding path program 1 times [2021-06-05 10:05:39,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:39,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46484135] [2021-06-05 10:05:39,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:40,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:05:40,071 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:40,071 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46484135] [2021-06-05 10:05:40,072 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46484135] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:40,072 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:40,072 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:05:40,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520998430] [2021-06-05 10:05:40,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:05:40,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:40,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:05:40,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:05:40,073 INFO L87 Difference]: Start difference. First operand 966 states and 2658 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 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) [2021-06-05 10:05:40,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:40,155 INFO L93 Difference]: Finished difference Result 669 states and 1767 transitions. [2021-06-05 10:05:40,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:05:40,155 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 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 [2021-06-05 10:05:40,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:40,155 INFO L225 Difference]: With dead ends: 669 [2021-06-05 10:05:40,155 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:05:40,156 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 101.2ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:05:40,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:05:40,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:05:40,156 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) [2021-06-05 10:05:40,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:05:40,157 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-06-05 10:05:40,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:40,157 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:05:40,157 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 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) [2021-06-05 10:05:40,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:05:40,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:05:40,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 10:05:40,159 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:05:40,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:05:40 BasicIcfg [2021-06-05 10:05:40,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:05:40,163 INFO L168 Benchmark]: Toolchain (without parser) took 7249.47 ms. Allocated memory was 337.6 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 299.6 MB in the beginning and 1.3 GB in the end (delta: -966.3 MB). Peak memory consumption was 284.4 MB. Max. memory is 16.0 GB. [2021-06-05 10:05:40,163 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 337.6 MB. Free memory was 317.9 MB in the beginning and 317.9 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:05:40,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.47 ms. Allocated memory is still 337.6 MB. Free memory was 299.5 MB in the beginning and 298.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:05:40,164 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.04 ms. Allocated memory is still 337.6 MB. Free memory was 298.4 MB in the beginning and 296.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:05:40,164 INFO L168 Benchmark]: Boogie Preprocessor took 34.70 ms. Allocated memory is still 337.6 MB. Free memory was 296.3 MB in the beginning and 295.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:05:40,164 INFO L168 Benchmark]: RCFGBuilder took 514.09 ms. Allocated memory is still 337.6 MB. Free memory was 295.3 MB in the beginning and 270.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:05:40,165 INFO L168 Benchmark]: TraceAbstraction took 6099.15 ms. Allocated memory was 337.6 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 270.1 MB in the beginning and 1.3 GB in the end (delta: -995.8 MB). Peak memory consumption was 256.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:05:40,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 337.6 MB. Free memory was 317.9 MB in the beginning and 317.9 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 533.47 ms. Allocated memory is still 337.6 MB. Free memory was 299.5 MB in the beginning and 298.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 63.04 ms. Allocated memory is still 337.6 MB. Free memory was 298.4 MB in the beginning and 296.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.70 ms. Allocated memory is still 337.6 MB. Free memory was 296.3 MB in the beginning and 295.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 514.09 ms. Allocated memory is still 337.6 MB. Free memory was 295.3 MB in the beginning and 270.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6099.15 ms. Allocated memory was 337.6 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 270.1 MB in the beginning and 1.3 GB in the end (delta: -995.8 MB). Peak memory consumption was 256.2 MB. 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 with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5974.2ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 175.6ms, AutomataDifference: 2582.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 516.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 941 SDtfs, 1694 SDslu, 3271 SDs, 0 SdLazy, 326 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 364.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1901.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1099.0ms AutomataMinimizationTime, 9 MinimizatonAttempts, 4455 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.6ms SsaConstructionTime, 211.9ms SatisfiabilityAnalysisTime, 1180.0ms InterpolantComputationTime, 490 NumberOfCodeBlocks, 490 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 481 ConstructedInterpolants, 0 QuantifiedInterpolants, 1981 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...