/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:48:36,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:48:36,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:48:36,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 16:48:36,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:48:36,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:48:36,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:48:36,663 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-07-09 16:48:36,706 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:48:36,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:48:36,706 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:48:36,707 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:48:36,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:48:36,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:48:36,709 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:48:36,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:48:36,709 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:48:36,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:48:36,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:48:36,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:48:36,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:48:36,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:48:36,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:48:36,711 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:48:36,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:48:36,711 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:48:36,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:48:36,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:48:36,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:48:36,711 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:48:36,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:48:36,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:48:36,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:48:36,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:48:36,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:48:36,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:48:36,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:48:36,712 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:48:36,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:48:36,713 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:48:36,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:48:37,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:48:37,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:48:37,024 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:48:37,024 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:48:37,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2021-07-09 16:48:37,075 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dfaf3de8/17412f2140a44763b5c78b31d6b6aad2/FLAGfd85e0f72 [2021-07-09 16:48:37,513 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:48:37,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2021-07-09 16:48:37,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dfaf3de8/17412f2140a44763b5c78b31d6b6aad2/FLAGfd85e0f72 [2021-07-09 16:48:37,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dfaf3de8/17412f2140a44763b5c78b31d6b6aad2 [2021-07-09 16:48:37,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:48:37,546 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:48:37,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:48:37,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:48:37,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:48:37,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:48:37" (1/1) ... [2021-07-09 16:48:37,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74970185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:37, skipping insertion in model container [2021-07-09 16:48:37,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:48:37" (1/1) ... [2021-07-09 16:48:37,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:48:37,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:48:37,773 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/safe007_pso.opt.i[949,962] [2021-07-09 16:48:37,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:48:37,905 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:48:37,913 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/safe007_pso.opt.i[949,962] [2021-07-09 16:48:37,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:48:37,966 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:48:37,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:37 WrapperNode [2021-07-09 16:48:37,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:48:37,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:48:37,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:48:37,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:48:37,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:37" (1/1) ... [2021-07-09 16:48:37,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:37" (1/1) ... [2021-07-09 16:48:38,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:48:38,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:48:38,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:48:38,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:48:38,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:37" (1/1) ... [2021-07-09 16:48:38,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:37" (1/1) ... [2021-07-09 16:48:38,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:37" (1/1) ... [2021-07-09 16:48:38,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:37" (1/1) ... [2021-07-09 16:48:38,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:37" (1/1) ... [2021-07-09 16:48:38,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:37" (1/1) ... [2021-07-09 16:48:38,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:37" (1/1) ... [2021-07-09 16:48:38,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:48:38,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:48:38,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:48:38,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:48:38,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:37" (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 [2021-07-09 16:48:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:48:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 16:48:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:48:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:48:38,114 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 16:48:38,115 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 16:48:38,115 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 16:48:38,115 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 16:48:38,115 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-09 16:48:38,115 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-09 16:48:38,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:48:38,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 16:48:38,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:48:38,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:48:38,117 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 16:48:38,327 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:48:38,327 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 16:48:38,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:48:38 BoogieIcfgContainer [2021-07-09 16:48:38,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:48:38,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:48:38,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:48:38,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:48:38,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:48:37" (1/3) ... [2021-07-09 16:48:38,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438d37e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:48:38, skipping insertion in model container [2021-07-09 16:48:38,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:37" (2/3) ... [2021-07-09 16:48:38,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438d37e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:48:38, skipping insertion in model container [2021-07-09 16:48:38,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:48:38" (3/3) ... [2021-07-09 16:48:38,333 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt.i [2021-07-09 16:48:38,337 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:48:38,337 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:48:38,337 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 16:48:38,337 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:48:38,359 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,359 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,359 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,359 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,359 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,359 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,360 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,360 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,360 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,360 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,360 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,361 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,361 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,361 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,361 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,361 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,361 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,362 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,362 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,363 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,363 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,363 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,363 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,363 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,363 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,364 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,364 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,364 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,364 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,364 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,365 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,366 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,366 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,366 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,366 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,369 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,370 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,372 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,372 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,372 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,372 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:38,373 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 16:48:38,387 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-09 16:48:38,400 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:48:38,400 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:48:38,400 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:48:38,400 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:48:38,400 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:48:38,400 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:48:38,400 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:48:38,400 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:48:38,407 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 85 transitions, 185 flow [2021-07-09 16:48:38,563 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5560 states, 5559 states have (on average 3.4934340708760567) internal successors, (19420), 5559 states have internal predecessors, (19420), 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) [2021-07-09 16:48:38,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 5560 states, 5559 states have (on average 3.4934340708760567) internal successors, (19420), 5559 states have internal predecessors, (19420), 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) [2021-07-09 16:48:38,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-07-09 16:48:38,608 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:38,609 INFO L508 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] [2021-07-09 16:48:38,609 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:38,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:38,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1408065288, now seen corresponding path program 1 times [2021-07-09 16:48:38,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:38,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537324196] [2021-07-09 16:48:38,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:38,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:38,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:38,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537324196] [2021-07-09 16:48:38,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537324196] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:38,980 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:38,980 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:48:38,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673922786] [2021-07-09 16:48:38,997 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:48:38,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:39,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:48:39,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:48:39,056 INFO L87 Difference]: Start difference. First operand has 5560 states, 5559 states have (on average 3.4934340708760567) internal successors, (19420), 5559 states have internal predecessors, (19420), 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 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-07-09 16:48:39,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:39,257 INFO L93 Difference]: Finished difference Result 6344 states and 21548 transitions. [2021-07-09 16:48:39,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:48:39,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2021-07-09 16:48:39,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:39,305 INFO L225 Difference]: With dead ends: 6344 [2021-07-09 16:48:39,305 INFO L226 Difference]: Without dead ends: 4629 [2021-07-09 16:48:39,307 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 107.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:48:39,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4629 states. [2021-07-09 16:48:39,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4629 to 4629. [2021-07-09 16:48:39,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4629 states, 4628 states have (on average 3.3854796888504755) internal successors, (15668), 4628 states have internal predecessors, (15668), 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) [2021-07-09 16:48:39,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 15668 transitions. [2021-07-09 16:48:39,532 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 15668 transitions. Word has length 50 [2021-07-09 16:48:39,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:39,533 INFO L482 AbstractCegarLoop]: Abstraction has 4629 states and 15668 transitions. [2021-07-09 16:48:39,533 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-07-09 16:48:39,533 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 15668 transitions. [2021-07-09 16:48:39,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-07-09 16:48:39,540 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:39,541 INFO L508 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] [2021-07-09 16:48:39,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:48:39,541 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:39,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:39,542 INFO L82 PathProgramCache]: Analyzing trace with hash 763919409, now seen corresponding path program 1 times [2021-07-09 16:48:39,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:39,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021498129] [2021-07-09 16:48:39,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:39,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:39,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:39,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021498129] [2021-07-09 16:48:39,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021498129] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:39,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:39,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:48:39,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009081086] [2021-07-09 16:48:39,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:48:39,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:39,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:48:39,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:48:39,695 INFO L87 Difference]: Start difference. First operand 4629 states and 15668 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-07-09 16:48:39,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:39,801 INFO L93 Difference]: Finished difference Result 5189 states and 17401 transitions. [2021-07-09 16:48:39,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:48:39,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2021-07-09 16:48:39,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:39,823 INFO L225 Difference]: With dead ends: 5189 [2021-07-09 16:48:39,823 INFO L226 Difference]: Without dead ends: 4209 [2021-07-09 16:48:39,824 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 137.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:48:39,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4209 states. [2021-07-09 16:48:39,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4209 to 4209. [2021-07-09 16:48:39,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4209 states, 4208 states have (on average 3.3583650190114067) internal successors, (14132), 4208 states have internal predecessors, (14132), 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) [2021-07-09 16:48:40,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 14132 transitions. [2021-07-09 16:48:40,016 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 14132 transitions. Word has length 52 [2021-07-09 16:48:40,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:40,033 INFO L482 AbstractCegarLoop]: Abstraction has 4209 states and 14132 transitions. [2021-07-09 16:48:40,033 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-07-09 16:48:40,033 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 14132 transitions. [2021-07-09 16:48:40,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-09 16:48:40,042 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:40,043 INFO L508 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] [2021-07-09 16:48:40,043 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:48:40,043 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:40,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:40,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1544842766, now seen corresponding path program 1 times [2021-07-09 16:48:40,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:40,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538639079] [2021-07-09 16:48:40,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:40,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:40,167 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:40,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538639079] [2021-07-09 16:48:40,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538639079] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:40,168 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:40,168 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:48:40,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979253126] [2021-07-09 16:48:40,168 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:48:40,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:40,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:48:40,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:48:40,169 INFO L87 Difference]: Start difference. First operand 4209 states and 14132 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 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) [2021-07-09 16:48:40,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:40,361 INFO L93 Difference]: Finished difference Result 5719 states and 18965 transitions. [2021-07-09 16:48:40,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:48:40,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 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 [2021-07-09 16:48:40,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:40,375 INFO L225 Difference]: With dead ends: 5719 [2021-07-09 16:48:40,376 INFO L226 Difference]: Without dead ends: 2814 [2021-07-09 16:48:40,376 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 97.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:48:40,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2021-07-09 16:48:40,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 2814. [2021-07-09 16:48:40,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2813 states have (on average 3.2214717383576255) internal successors, (9062), 2813 states have internal predecessors, (9062), 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) [2021-07-09 16:48:40,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 9062 transitions. [2021-07-09 16:48:40,451 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 9062 transitions. Word has length 54 [2021-07-09 16:48:40,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:40,451 INFO L482 AbstractCegarLoop]: Abstraction has 2814 states and 9062 transitions. [2021-07-09 16:48:40,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 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) [2021-07-09 16:48:40,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 9062 transitions. [2021-07-09 16:48:40,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-07-09 16:48:40,458 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:40,458 INFO L508 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] [2021-07-09 16:48:40,458 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:48:40,458 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:40,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:40,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1023548365, now seen corresponding path program 1 times [2021-07-09 16:48:40,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:40,459 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988483477] [2021-07-09 16:48:40,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:40,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:40,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:40,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988483477] [2021-07-09 16:48:40,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988483477] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:40,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:40,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:48:40,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396961039] [2021-07-09 16:48:40,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:48:40,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:40,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:48:40,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:48:40,541 INFO L87 Difference]: Start difference. First operand 2814 states and 9062 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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) [2021-07-09 16:48:40,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:40,708 INFO L93 Difference]: Finished difference Result 4414 states and 14332 transitions. [2021-07-09 16:48:40,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:48:40,709 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 [2021-07-09 16:48:40,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:40,723 INFO L225 Difference]: With dead ends: 4414 [2021-07-09 16:48:40,723 INFO L226 Difference]: Without dead ends: 3214 [2021-07-09 16:48:40,723 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 126.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:48:40,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3214 states. [2021-07-09 16:48:40,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3214 to 2814. [2021-07-09 16:48:40,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2813 states have (on average 3.210095982936367) internal successors, (9030), 2813 states have internal predecessors, (9030), 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) [2021-07-09 16:48:40,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 9030 transitions. [2021-07-09 16:48:40,783 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 9030 transitions. Word has length 57 [2021-07-09 16:48:40,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:40,783 INFO L482 AbstractCegarLoop]: Abstraction has 2814 states and 9030 transitions. [2021-07-09 16:48:40,783 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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) [2021-07-09 16:48:40,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 9030 transitions. [2021-07-09 16:48:40,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-07-09 16:48:40,788 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:40,788 INFO L508 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] [2021-07-09 16:48:40,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:48:40,789 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:40,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:40,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1268655147, now seen corresponding path program 2 times [2021-07-09 16:48:40,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:40,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510600739] [2021-07-09 16:48:40,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:40,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:40,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:40,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510600739] [2021-07-09 16:48:40,863 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510600739] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:40,863 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:40,863 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:48:40,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947762504] [2021-07-09 16:48:40,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:48:40,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:40,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:48:40,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:48:40,865 INFO L87 Difference]: Start difference. First operand 2814 states and 9030 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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) [2021-07-09 16:48:40,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:40,980 INFO L93 Difference]: Finished difference Result 3734 states and 11976 transitions. [2021-07-09 16:48:40,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:48:40,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 [2021-07-09 16:48:40,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:40,997 INFO L225 Difference]: With dead ends: 3734 [2021-07-09 16:48:40,998 INFO L226 Difference]: Without dead ends: 1974 [2021-07-09 16:48:40,998 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 102.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:48:41,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2021-07-09 16:48:41,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1974. [2021-07-09 16:48:41,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1974 states, 1973 states have (on average 3.084642676127724) internal successors, (6086), 1973 states have internal predecessors, (6086), 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) [2021-07-09 16:48:41,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 6086 transitions. [2021-07-09 16:48:41,072 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 6086 transitions. Word has length 57 [2021-07-09 16:48:41,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:41,073 INFO L482 AbstractCegarLoop]: Abstraction has 1974 states and 6086 transitions. [2021-07-09 16:48:41,073 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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) [2021-07-09 16:48:41,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 6086 transitions. [2021-07-09 16:48:41,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-09 16:48:41,077 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:41,077 INFO L508 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] [2021-07-09 16:48:41,077 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:48:41,077 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:41,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:41,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1283773141, now seen corresponding path program 1 times [2021-07-09 16:48:41,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:41,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909068763] [2021-07-09 16:48:41,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:41,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:41,171 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:41,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909068763] [2021-07-09 16:48:41,171 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909068763] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:41,171 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:41,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:48:41,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758214506] [2021-07-09 16:48:41,172 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:48:41,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:41,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:48:41,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:48:41,173 INFO L87 Difference]: Start difference. First operand 1974 states and 6086 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) [2021-07-09 16:48:41,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:41,271 INFO L93 Difference]: Finished difference Result 1814 states and 5558 transitions. [2021-07-09 16:48:41,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:48:41,272 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 [2021-07-09 16:48:41,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:41,272 INFO L225 Difference]: With dead ends: 1814 [2021-07-09 16:48:41,272 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 16:48:41,275 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 99.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:48:41,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 16:48:41,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 16:48:41,276 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) [2021-07-09 16:48:41,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 16:48:41,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-07-09 16:48:41,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:41,276 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 16:48:41,276 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) [2021-07-09 16:48:41,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 16:48:41,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:48:41,276 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 16:48:41,278 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 16:48:41,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 04:48:41 BasicIcfg [2021-07-09 16:48:41,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 16:48:41,281 INFO L168 Benchmark]: Toolchain (without parser) took 3734.73 ms. Allocated memory was 187.7 MB in the beginning and 471.9 MB in the end (delta: 284.2 MB). Free memory was 150.6 MB in the beginning and 306.5 MB in the end (delta: -155.9 MB). Peak memory consumption was 128.3 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:41,281 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 187.7 MB. Free memory is still 168.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 16:48:41,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.77 ms. Allocated memory is still 187.7 MB. Free memory was 150.4 MB in the beginning and 160.5 MB in the end (delta: -10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:41,282 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.37 ms. Allocated memory is still 187.7 MB. Free memory was 160.5 MB in the beginning and 158.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:41,283 INFO L168 Benchmark]: Boogie Preprocessor took 41.78 ms. Allocated memory is still 187.7 MB. Free memory was 158.4 MB in the beginning and 157.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:41,284 INFO L168 Benchmark]: RCFGBuilder took 273.90 ms. Allocated memory is still 187.7 MB. Free memory was 156.9 MB in the beginning and 133.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:41,285 INFO L168 Benchmark]: TraceAbstraction took 2950.63 ms. Allocated memory was 187.7 MB in the beginning and 471.9 MB in the end (delta: 284.2 MB). Free memory was 132.8 MB in the beginning and 306.5 MB in the end (delta: -173.7 MB). Peak memory consumption was 111.5 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:41,289 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 187.7 MB. Free memory is still 168.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 418.77 ms. Allocated memory is still 187.7 MB. Free memory was 150.4 MB in the beginning and 160.5 MB in the end (delta: -10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 43.37 ms. Allocated memory is still 187.7 MB. Free memory was 160.5 MB in the beginning and 158.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.78 ms. Allocated memory is still 187.7 MB. Free memory was 158.4 MB in the beginning and 157.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 273.90 ms. Allocated memory is still 187.7 MB. Free memory was 156.9 MB in the beginning and 133.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2950.63 ms. Allocated memory was 187.7 MB in the beginning and 471.9 MB in the end (delta: 284.2 MB). Free memory was 132.8 MB in the beginning and 306.5 MB in the end (delta: -173.7 MB). Peak memory consumption was 111.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2878.5ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 75.5ms, AutomataDifference: 1063.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 162.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 634 SDtfs, 819 SDslu, 2033 SDs, 0 SdLazy, 149 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 120.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 672.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5560occurred in iteration=0, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 616.7ms AutomataMinimizationTime, 6 MinimizatonAttempts, 400 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.4ms SsaConstructionTime, 157.4ms SatisfiabilityAnalysisTime, 607.8ms InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 958 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...