/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-344d29da17dfcedfb91d6006a5dbd12b556a868d-344d29d [2021-02-16 17:35:01,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-16 17:35:01,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-16 17:35:01,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-16 17:35:01,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-16 17:35:01,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-16 17:35:01,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-16 17:35:01,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-16 17:35:01,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-16 17:35:01,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-16 17:35:01,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-16 17:35:01,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-16 17:35:01,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-16 17:35:01,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-16 17:35:01,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-16 17:35:01,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-16 17:35:01,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-16 17:35:01,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-16 17:35:01,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-16 17:35:01,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-16 17:35:01,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-16 17:35:01,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-16 17:35:01,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-16 17:35:01,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-16 17:35:01,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-16 17:35:01,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-16 17:35:01,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-16 17:35:01,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-16 17:35:01,278 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 [2021-02-16 17:35:01,323 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-16 17:35:01,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-16 17:35:01,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-16 17:35:01,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-16 17:35:01,326 INFO L138 SettingsManager]: * Use SBE=true [2021-02-16 17:35:01,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-16 17:35:01,327 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-16 17:35:01,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-16 17:35:01,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-16 17:35:01,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-16 17:35:01,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-16 17:35:01,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-16 17:35:01,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-16 17:35:01,328 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-16 17:35:01,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-16 17:35:01,328 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-16 17:35:01,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-16 17:35:01,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-16 17:35:01,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-16 17:35:01,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-16 17:35:01,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-16 17:35:01,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-16 17:35:01,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-16 17:35:01,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-16 17:35:01,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-16 17:35:01,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-16 17:35:01,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-16 17:35:01,331 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-16 17:35:01,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-16 17:35:01,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-16 17:35:01,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-16 17:35:01,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-16 17:35:01,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-16 17:35:01,742 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-16 17:35:01,743 INFO L275 PluginConnector]: CDTParser initialized [2021-02-16 17:35:01,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i [2021-02-16 17:35:01,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0d56c647/6fd558e9815b40f3977b0c1e4e0c14f3/FLAGb872f0f56 [2021-02-16 17:35:02,563 INFO L306 CDTParser]: Found 1 translation units. [2021-02-16 17:35:02,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2.i [2021-02-16 17:35:02,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0d56c647/6fd558e9815b40f3977b0c1e4e0c14f3/FLAGb872f0f56 [2021-02-16 17:35:02,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0d56c647/6fd558e9815b40f3977b0c1e4e0c14f3 [2021-02-16 17:35:02,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-16 17:35:02,791 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-02-16 17:35:02,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-16 17:35:02,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-16 17:35:02,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-16 17:35:02,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 05:35:02" (1/1) ... [2021-02-16 17:35:02,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e9faeed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:35:02, skipping insertion in model container [2021-02-16 17:35:02,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 05:35:02" (1/1) ... [2021-02-16 17:35:02,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-16 17:35:02,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-16 17:35:03,241 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2.i[30003,30016] [2021-02-16 17:35:03,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 17:35:03,269 INFO L203 MainTranslator]: Completed pre-run [2021-02-16 17:35:03,312 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2.i[30003,30016] [2021-02-16 17:35:03,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 17:35:03,418 INFO L208 MainTranslator]: Completed translation [2021-02-16 17:35:03,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:35:03 WrapperNode [2021-02-16 17:35:03,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-16 17:35:03,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-16 17:35:03,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-16 17:35:03,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-16 17:35:03,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:35:03" (1/1) ... [2021-02-16 17:35:03,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:35:03" (1/1) ... [2021-02-16 17:35:03,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-16 17:35:03,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-16 17:35:03,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-16 17:35:03,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-16 17:35:03,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:35:03" (1/1) ... [2021-02-16 17:35:03,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:35:03" (1/1) ... [2021-02-16 17:35:03,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:35:03" (1/1) ... [2021-02-16 17:35:03,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:35:03" (1/1) ... [2021-02-16 17:35:03,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:35:03" (1/1) ... [2021-02-16 17:35:03,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:35:03" (1/1) ... [2021-02-16 17:35:03,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:35:03" (1/1) ... [2021-02-16 17:35:03,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-16 17:35:03,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-16 17:35:03,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-16 17:35:03,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-16 17:35:03,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:35:03" (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 [2021-02-16 17:35:03,672 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2021-02-16 17:35:03,673 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2021-02-16 17:35:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-16 17:35:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-02-16 17:35:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-16 17:35:03,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-16 17:35:03,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-16 17:35:03,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-02-16 17:35:03,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-16 17:35:03,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-16 17:35:03,680 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-16 17:35:04,226 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-16 17:35:04,226 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-02-16 17:35:04,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:35:04 BoogieIcfgContainer [2021-02-16 17:35:04,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-16 17:35:04,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-16 17:35:04,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-16 17:35:04,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-16 17:35:04,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 05:35:02" (1/3) ... [2021-02-16 17:35:04,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1026a5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 05:35:04, skipping insertion in model container [2021-02-16 17:35:04,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:35:03" (2/3) ... [2021-02-16 17:35:04,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1026a5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 05:35:04, skipping insertion in model container [2021-02-16 17:35:04,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:35:04" (3/3) ... [2021-02-16 17:35:04,238 INFO L111 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2021-02-16 17:35:04,245 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-16 17:35:04,246 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-16 17:35:04,251 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-16 17:35:04,252 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-16 17:35:04,284 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,285 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,285 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,285 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,285 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,286 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,286 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,286 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,286 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,286 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,287 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,287 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,287 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,287 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,287 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,288 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,288 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,288 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,288 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,288 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,289 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,289 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,289 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,289 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,290 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,290 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,290 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,290 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,290 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,291 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,291 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,291 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,291 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,291 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,292 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,292 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,292 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,292 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,292 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,293 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,293 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,293 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,293 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,294 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,294 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~lse~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,294 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~lse~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,294 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~lse~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,294 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,295 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~lse~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,295 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,295 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,295 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,295 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,296 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,296 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,296 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,296 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,296 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,297 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,297 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,297 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,297 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,297 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,298 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,300 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,300 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,301 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,301 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~lse~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,301 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,301 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,301 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,301 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,302 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,302 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,302 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,302 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:35:04,305 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-02-16 17:35:04,326 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-02-16 17:35:04,352 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-16 17:35:04,352 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-16 17:35:04,352 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-16 17:35:04,352 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-16 17:35:04,352 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-16 17:35:04,352 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-16 17:35:04,353 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-16 17:35:04,353 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-16 17:35:04,367 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 96 transitions, 197 flow [2021-02-16 17:35:04,436 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1148 states, 1146 states have (on average 2.0898778359511345) internal successors, (2395), 1147 states have internal predecessors, (2395), 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) [2021-02-16 17:35:04,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 1148 states, 1146 states have (on average 2.0898778359511345) internal successors, (2395), 1147 states have internal predecessors, (2395), 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) [2021-02-16 17:35:04,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-02-16 17:35:04,478 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:35:04,479 INFO L505 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] [2021-02-16 17:35:04,479 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:35:04,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:35:04,486 INFO L82 PathProgramCache]: Analyzing trace with hash 224222624, now seen corresponding path program 1 times [2021-02-16 17:35:04,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:35:04,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262699185] [2021-02-16 17:35:04,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:35:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:35:04,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:04,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:35:04,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:04,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:35:04,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:04,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:35:04,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:04,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:35:04,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:35:04,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262699185] [2021-02-16 17:35:04,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:35:04,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-16 17:35:04,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073864108] [2021-02-16 17:35:04,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-16 17:35:04,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:35:04,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-16 17:35:04,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-16 17:35:04,858 INFO L87 Difference]: Start difference. First operand has 1148 states, 1146 states have (on average 2.0898778359511345) internal successors, (2395), 1147 states have internal predecessors, (2395), 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 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-02-16 17:35:05,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:35:05,019 INFO L93 Difference]: Finished difference Result 1848 states and 3744 transitions. [2021-02-16 17:35:05,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-16 17:35:05,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2021-02-16 17:35:05,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:35:05,092 INFO L225 Difference]: With dead ends: 1848 [2021-02-16 17:35:05,092 INFO L226 Difference]: Without dead ends: 882 [2021-02-16 17:35:05,097 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-16 17:35:05,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2021-02-16 17:35:05,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 640. [2021-02-16 17:35:05,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 638 states have (on average 1.9717868338557993) internal successors, (1258), 639 states have internal predecessors, (1258), 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) [2021-02-16 17:35:05,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 1258 transitions. [2021-02-16 17:35:05,249 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 1258 transitions. Word has length 41 [2021-02-16 17:35:05,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:35:05,250 INFO L480 AbstractCegarLoop]: Abstraction has 640 states and 1258 transitions. [2021-02-16 17:35:05,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-02-16 17:35:05,251 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 1258 transitions. [2021-02-16 17:35:05,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-02-16 17:35:05,254 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:35:05,254 INFO L505 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] [2021-02-16 17:35:05,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-16 17:35:05,255 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:35:05,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:35:05,256 INFO L82 PathProgramCache]: Analyzing trace with hash -969499873, now seen corresponding path program 1 times [2021-02-16 17:35:05,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:35:05,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760162467] [2021-02-16 17:35:05,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:35:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:35:05,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:35:05,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:35:05,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-16 17:35:05,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-16 17:35:05,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:35:05,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:35:05,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760162467] [2021-02-16 17:35:05,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:35:05,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-16 17:35:05,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225446018] [2021-02-16 17:35:05,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-16 17:35:05,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:35:05,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-16 17:35:05,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-16 17:35:05,458 INFO L87 Difference]: Start difference. First operand 640 states and 1258 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-02-16 17:35:05,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:35:05,562 INFO L93 Difference]: Finished difference Result 607 states and 1184 transitions. [2021-02-16 17:35:05,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-16 17:35:05,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 43 [2021-02-16 17:35:05,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:35:05,568 INFO L225 Difference]: With dead ends: 607 [2021-02-16 17:35:05,569 INFO L226 Difference]: Without dead ends: 514 [2021-02-16 17:35:05,570 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-02-16 17:35:05,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2021-02-16 17:35:05,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2021-02-16 17:35:05,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 513 states have (on average 1.9512670565302144) internal successors, (1001), 513 states have internal predecessors, (1001), 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) [2021-02-16 17:35:05,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 1001 transitions. [2021-02-16 17:35:05,603 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 1001 transitions. Word has length 43 [2021-02-16 17:35:05,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:35:05,604 INFO L480 AbstractCegarLoop]: Abstraction has 514 states and 1001 transitions. [2021-02-16 17:35:05,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-02-16 17:35:05,604 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 1001 transitions. [2021-02-16 17:35:05,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-02-16 17:35:05,608 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:35:05,608 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:35:05,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-16 17:35:05,609 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:35:05,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:35:05,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1331609554, now seen corresponding path program 1 times [2021-02-16 17:35:05,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:35:05,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024258409] [2021-02-16 17:35:05,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:35:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:35:05,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:35:05,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:35:05,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:35:05,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:35:05,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:35:05,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:35:05,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:35:05,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024258409] [2021-02-16 17:35:05,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:35:05,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-16 17:35:05,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894743723] [2021-02-16 17:35:05,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-16 17:35:05,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:35:05,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-16 17:35:05,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-16 17:35:05,732 INFO L87 Difference]: Start difference. First operand 514 states and 1001 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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) [2021-02-16 17:35:05,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:35:05,848 INFO L93 Difference]: Finished difference Result 619 states and 1190 transitions. [2021-02-16 17:35:05,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-16 17:35:05,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 60 [2021-02-16 17:35:05,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:35:05,853 INFO L225 Difference]: With dead ends: 619 [2021-02-16 17:35:05,853 INFO L226 Difference]: Without dead ends: 514 [2021-02-16 17:35:05,854 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-02-16 17:35:05,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2021-02-16 17:35:05,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2021-02-16 17:35:05,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 513 states have (on average 1.9103313840155944) internal successors, (980), 513 states have internal predecessors, (980), 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) [2021-02-16 17:35:05,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 980 transitions. [2021-02-16 17:35:05,888 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 980 transitions. Word has length 60 [2021-02-16 17:35:05,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:35:05,889 INFO L480 AbstractCegarLoop]: Abstraction has 514 states and 980 transitions. [2021-02-16 17:35:05,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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) [2021-02-16 17:35:05,889 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 980 transitions. [2021-02-16 17:35:05,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-16 17:35:05,892 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:35:05,893 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:35:05,893 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-16 17:35:05,893 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:35:05,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:35:05,894 INFO L82 PathProgramCache]: Analyzing trace with hash 856348374, now seen corresponding path program 1 times [2021-02-16 17:35:05,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:35:05,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893247038] [2021-02-16 17:35:05,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:35:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:35:05,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:35:05,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 17:35:05,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 17:35:05,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 17:35:05,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:05,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:35:05,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:35:05,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893247038] [2021-02-16 17:35:05,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:35:05,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-16 17:35:05,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147240992] [2021-02-16 17:35:05,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-16 17:35:05,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:35:05,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-16 17:35:05,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-16 17:35:05,980 INFO L87 Difference]: Start difference. First operand 514 states and 980 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:35:06,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:35:06,043 INFO L93 Difference]: Finished difference Result 619 states and 1164 transitions. [2021-02-16 17:35:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-16 17:35:06,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-02-16 17:35:06,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:35:06,047 INFO L225 Difference]: With dead ends: 619 [2021-02-16 17:35:06,048 INFO L226 Difference]: Without dead ends: 493 [2021-02-16 17:35:06,048 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-02-16 17:35:06,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2021-02-16 17:35:06,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 472. [2021-02-16 17:35:06,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.861995753715499) internal successors, (877), 471 states have internal predecessors, (877), 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) [2021-02-16 17:35:06,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 877 transitions. [2021-02-16 17:35:06,066 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 877 transitions. Word has length 61 [2021-02-16 17:35:06,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:35:06,066 INFO L480 AbstractCegarLoop]: Abstraction has 472 states and 877 transitions. [2021-02-16 17:35:06,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:35:06,067 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 877 transitions. [2021-02-16 17:35:06,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-16 17:35:06,069 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:35:06,069 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:35:06,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-16 17:35:06,070 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:35:06,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:35:06,070 INFO L82 PathProgramCache]: Analyzing trace with hash 390420900, now seen corresponding path program 1 times [2021-02-16 17:35:06,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:35:06,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417102682] [2021-02-16 17:35:06,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:35:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:35:06,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:35:06,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:35:06,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:35:06,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:35:06,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:35:06,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:35:06,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-16 17:35:06,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-16 17:35:06,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:35:06,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:35:06,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417102682] [2021-02-16 17:35:06,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:35:06,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-16 17:35:06,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864652702] [2021-02-16 17:35:06,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-16 17:35:06,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:35:06,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-16 17:35:06,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-16 17:35:06,250 INFO L87 Difference]: Start difference. First operand 472 states and 877 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:35:06,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:35:06,428 INFO L93 Difference]: Finished difference Result 493 states and 897 transitions. [2021-02-16 17:35:06,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-16 17:35:06,429 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-02-16 17:35:06,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:35:06,431 INFO L225 Difference]: With dead ends: 493 [2021-02-16 17:35:06,432 INFO L226 Difference]: Without dead ends: 283 [2021-02-16 17:35:06,432 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2021-02-16 17:35:06,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-02-16 17:35:06,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2021-02-16 17:35:06,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 1.7695035460992907) internal successors, (499), 282 states have internal predecessors, (499), 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) [2021-02-16 17:35:06,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 499 transitions. [2021-02-16 17:35:06,443 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 499 transitions. Word has length 63 [2021-02-16 17:35:06,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:35:06,444 INFO L480 AbstractCegarLoop]: Abstraction has 283 states and 499 transitions. [2021-02-16 17:35:06,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:35:06,444 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 499 transitions. [2021-02-16 17:35:06,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-16 17:35:06,445 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:35:06,446 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:35:06,446 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-16 17:35:06,446 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:35:06,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:35:06,447 INFO L82 PathProgramCache]: Analyzing trace with hash 948876974, now seen corresponding path program 2 times [2021-02-16 17:35:06,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:35:06,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551243093] [2021-02-16 17:35:06,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:35:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:35:06,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:35:06,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:35:06,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 17:35:06,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:35:06,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-16 17:35:06,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-16 17:35:06,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-16 17:35:06,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-16 17:35:06,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:35:06,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:35:06,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:35:06,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551243093] [2021-02-16 17:35:06,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:35:06,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-16 17:35:06,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105249379] [2021-02-16 17:35:06,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-16 17:35:06,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:35:06,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-16 17:35:06,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-02-16 17:35:06,619 INFO L87 Difference]: Start difference. First operand 283 states and 499 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:35:06,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:35:06,774 INFO L93 Difference]: Finished difference Result 468 states and 827 transitions. [2021-02-16 17:35:06,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-16 17:35:06,774 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-02-16 17:35:06,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:35:06,777 INFO L225 Difference]: With dead ends: 468 [2021-02-16 17:35:06,777 INFO L226 Difference]: Without dead ends: 377 [2021-02-16 17:35:06,778 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-02-16 17:35:06,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-02-16 17:35:06,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 234. [2021-02-16 17:35:06,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.7210300429184548) internal successors, (401), 233 states have internal predecessors, (401), 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) [2021-02-16 17:35:06,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 401 transitions. [2021-02-16 17:35:06,788 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 401 transitions. Word has length 63 [2021-02-16 17:35:06,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:35:06,788 INFO L480 AbstractCegarLoop]: Abstraction has 234 states and 401 transitions. [2021-02-16 17:35:06,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:35:06,789 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 401 transitions. [2021-02-16 17:35:06,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-16 17:35:06,790 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:35:06,790 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:35:06,790 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-16 17:35:06,790 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:35:06,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:35:06,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1709083682, now seen corresponding path program 3 times [2021-02-16 17:35:06,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:35:06,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240212262] [2021-02-16 17:35:06,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:35:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-16 17:35:06,811 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-16 17:35:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-16 17:35:06,824 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-16 17:35:06,862 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-16 17:35:06,862 INFO L606 BasicCegarLoop]: Counterexample might be feasible [2021-02-16 17:35:06,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-16 17:35:06,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 05:35:06 BasicIcfg [2021-02-16 17:35:06,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-16 17:35:06,935 INFO L168 Benchmark]: Toolchain (without parser) took 4156.77 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 276.4 MB in the beginning and 240.3 MB in the end (delta: 36.1 MB). Peak memory consumption was 99.1 MB. Max. memory is 16.0 GB. [2021-02-16 17:35:06,935 INFO L168 Benchmark]: CDTParser took 1.42 ms. Allocated memory is still 302.0 MB. Free memory is still 272.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-02-16 17:35:06,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 624.89 ms. Allocated memory is still 302.0 MB. Free memory was 275.1 MB in the beginning and 244.4 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-02-16 17:35:06,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.74 ms. Allocated memory is still 302.0 MB. Free memory was 244.4 MB in the beginning and 284.5 MB in the end (delta: -40.1 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. [2021-02-16 17:35:06,937 INFO L168 Benchmark]: Boogie Preprocessor took 28.16 ms. Allocated memory is still 302.0 MB. Free memory was 284.5 MB in the beginning and 283.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-16 17:35:06,938 INFO L168 Benchmark]: RCFGBuilder took 672.57 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 255.2 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-02-16 17:35:06,939 INFO L168 Benchmark]: TraceAbstraction took 2702.74 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 255.2 MB in the beginning and 240.3 MB in the end (delta: 14.9 MB). Peak memory consumption was 79.9 MB. Max. memory is 16.0 GB. [2021-02-16 17:35:06,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.42 ms. Allocated memory is still 302.0 MB. Free memory is still 272.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 624.89 ms. Allocated memory is still 302.0 MB. Free memory was 275.1 MB in the beginning and 244.4 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 105.74 ms. Allocated memory is still 302.0 MB. Free memory was 244.4 MB in the beginning and 284.5 MB in the end (delta: -40.1 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.16 ms. Allocated memory is still 302.0 MB. Free memory was 284.5 MB in the beginning and 283.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 672.57 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 255.2 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2702.74 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 255.2 MB in the beginning and 240.3 MB in the end (delta: 14.9 MB). Peak memory consumption was 79.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 690]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 volatile int stoppingFlag; VAL [stoppingFlag=0] [L698] 0 volatile int pendingIo; VAL [pendingIo=0, stoppingFlag=0] [L699] 0 volatile int stoppingEvent; VAL [pendingIo=0, stoppingEvent=0, stoppingFlag=0] [L700] 0 volatile int stopped; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0] [L755] 0 pthread_t t; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0] [L756] 0 pendingIo = 1 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L757] 0 stoppingFlag = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L758] 0 stoppingEvent = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L759] 0 stopped = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L760] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L734] 0 int status; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L703] 0 int lsf = stoppingFlag; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L744] 1 stoppingFlag = 1 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L705] COND FALSE 0 !(\read(lsf)) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L709] 0 int lp = pendingIo; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L725] 1 int pending; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L719] 1 pendingIo-- [L720] 1 int tmp = pendingIo; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L722] 1 return tmp; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L726] 1 pending = dec() VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L727] COND TRUE 1 pending == 0 VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L729] 1 stoppingEvent = 1 VAL [pendingIo=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L748] 1 int lse = stoppingEvent; VAL [pendingIo=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L686] COND FALSE 1 !(!cond) VAL [pendingIo=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L712] 0 pendingIo = lp + 1 VAL [pendingIo=2, stopped=0, stoppingEvent=1, stoppingFlag=1] [L715] 0 return 0; VAL [pendingIo=2, stopped=0, stoppingEvent=1, stoppingFlag=1] [L735] 0 status = BCSP_IoIncrement() VAL [pendingIo=2, stopped=0, stoppingEvent=1, stoppingFlag=1] [L736] COND TRUE 0 status == 0 VAL [pendingIo=2, stopped=0, stoppingEvent=1, stoppingFlag=1] [L751] 1 stopped = 1 VAL [pendingIo=2, stopped=1, stoppingEvent=1, stoppingFlag=1] [L689] COND TRUE 0 !(cond) VAL [pendingIo=2, stopped=1, stoppingEvent=1, stoppingFlag=1] [L690] 0 reach_error() VAL [pendingIo=2, stopped=1, stoppingEvent=1, stoppingFlag=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 802 SDtfs, 716 SDslu, 2215 SDs, 0 SdLazy, 233 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1148occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 406 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 394 NumberOfCodeBlocks, 394 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 325 ConstructedInterpolants, 0 QuantifiedInterpolants, 33877 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...