/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_05-lockfuns_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 10:01:10,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 10:01:10,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 10:01:11,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 10:01:11,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 10:01:11,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 10:01:11,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 10:01:11,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 10:01:11,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 10:01:11,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 10:01:11,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 10:01:11,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 10:01:11,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 10:01:11,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 10:01:11,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 10:01:11,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 10:01:11,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 10:01:11,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 10:01:11,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 10:01:11,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 10:01:11,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 10:01:11,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 10:01:11,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 10:01:11,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 10:01:11,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 10:01:11,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 10:01:11,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 10:01:11,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 10:01:11,075 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 10:01:11,105 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 10:01:11,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 10:01:11,106 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 10:01:11,106 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 10:01:11,107 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 10:01:11,107 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 10:01:11,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 10:01:11,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 10:01:11,108 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 10:01:11,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 10:01:11,109 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 10:01:11,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 10:01:11,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 10:01:11,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 10:01:11,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 10:01:11,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 10:01:11,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 10:01:11,110 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 10:01:11,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 10:01:11,110 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 10:01:11,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 10:01:11,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 10:01:11,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 10:01:11,110 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 10:01:11,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 10:01:11,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 10:01:11,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 10:01:11,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 10:01:11,112 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 10:01:11,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 10:01:11,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 10:01:11,112 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 10:01:11,113 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 10:01:11,113 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 10:01:11,113 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 10:01:11,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 10:01:11,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 10:01:11,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 10:01:11,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 10:01:11,351 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 10:01:11,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_05-lockfuns_racefree.i [2022-01-18 10:01:11,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dcade60d/2d7d6f044ad84c3c93f16a1da7a0d130/FLAG52f402ae1 [2022-01-18 10:01:11,782 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 10:01:11,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_05-lockfuns_racefree.i [2022-01-18 10:01:11,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dcade60d/2d7d6f044ad84c3c93f16a1da7a0d130/FLAG52f402ae1 [2022-01-18 10:01:11,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dcade60d/2d7d6f044ad84c3c93f16a1da7a0d130 [2022-01-18 10:01:11,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 10:01:11,812 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 10:01:11,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 10:01:11,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 10:01:11,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 10:01:11,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:01:11" (1/1) ... [2022-01-18 10:01:11,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e490ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:01:11, skipping insertion in model container [2022-01-18 10:01:11,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:01:11" (1/1) ... [2022-01-18 10:01:11,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 10:01:11,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 10:01:12,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_05-lockfuns_racefree.i[30176,30189] [2022-01-18 10:01:12,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 10:01:12,126 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 10:01:12,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_05-lockfuns_racefree.i[30176,30189] [2022-01-18 10:01:12,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 10:01:12,228 INFO L208 MainTranslator]: Completed translation [2022-01-18 10:01:12,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:01:12 WrapperNode [2022-01-18 10:01:12,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 10:01:12,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 10:01:12,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 10:01:12,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 10:01:12,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:01:12" (1/1) ... [2022-01-18 10:01:12,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:01:12" (1/1) ... [2022-01-18 10:01:12,274 INFO L137 Inliner]: procedures = 172, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 106 [2022-01-18 10:01:12,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 10:01:12,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 10:01:12,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 10:01:12,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 10:01:12,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:01:12" (1/1) ... [2022-01-18 10:01:12,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:01:12" (1/1) ... [2022-01-18 10:01:12,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:01:12" (1/1) ... [2022-01-18 10:01:12,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:01:12" (1/1) ... [2022-01-18 10:01:12,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:01:12" (1/1) ... [2022-01-18 10:01:12,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:01:12" (1/1) ... [2022-01-18 10:01:12,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:01:12" (1/1) ... [2022-01-18 10:01:12,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 10:01:12,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 10:01:12,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 10:01:12,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 10:01:12,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:01:12" (1/1) ... [2022-01-18 10:01:12,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 10:01:12,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:01:12,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 10:01:12,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 10:01:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 10:01:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 10:01:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-18 10:01:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 10:01:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 10:01:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-18 10:01:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-18 10:01:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 10:01:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 10:01:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 10:01:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 10:01:12,360 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 10:01:12,442 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 10:01:12,443 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 10:01:12,644 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 10:01:12,651 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 10:01:12,651 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-01-18 10:01:12,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:01:12 BoogieIcfgContainer [2022-01-18 10:01:12,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 10:01:12,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 10:01:12,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 10:01:12,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 10:01:12,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 10:01:11" (1/3) ... [2022-01-18 10:01:12,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6424a69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:01:12, skipping insertion in model container [2022-01-18 10:01:12,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:01:12" (2/3) ... [2022-01-18 10:01:12,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6424a69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:01:12, skipping insertion in model container [2022-01-18 10:01:12,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:01:12" (3/3) ... [2022-01-18 10:01:12,659 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_05-lockfuns_racefree.i [2022-01-18 10:01:12,663 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 10:01:12,664 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 10:01:12,664 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 10:01:12,664 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 10:01:12,689 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,690 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,690 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,690 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,690 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,690 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,690 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,690 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,691 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,691 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,691 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,691 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,691 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,692 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,692 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,692 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,692 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,693 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,693 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,693 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,693 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,694 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,694 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,694 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,694 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,694 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,697 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,697 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:12,704 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-18 10:01:12,740 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 10:01:12,745 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 10:01:12,745 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 10:01:12,755 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 106 places, 115 transitions, 238 flow [2022-01-18 10:01:12,846 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 836 states, 833 states have (on average 2.183673469387755) internal successors, (1819), 835 states have internal predecessors, (1819), 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) [2022-01-18 10:01:12,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 836 states, 833 states have (on average 2.183673469387755) internal successors, (1819), 835 states have internal predecessors, (1819), 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) [2022-01-18 10:01:12,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-18 10:01:12,860 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:01:12,860 INFO L514 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] [2022-01-18 10:01:12,861 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 10:01:12,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:01:12,868 INFO L85 PathProgramCache]: Analyzing trace with hash 943706821, now seen corresponding path program 1 times [2022-01-18 10:01:12,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:01:12,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364109199] [2022-01-18 10:01:12,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:01:12,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:01:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:01:13,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:01:13,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:01:13,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364109199] [2022-01-18 10:01:13,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364109199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:01:13,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:01:13,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 10:01:13,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626313464] [2022-01-18 10:01:13,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:01:13,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 10:01:13,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:01:13,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 10:01:13,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 10:01:13,067 INFO L87 Difference]: Start difference. First operand has 836 states, 833 states have (on average 2.183673469387755) internal successors, (1819), 835 states have internal predecessors, (1819), 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 2 states, 2 states have (on average 21.5) internal successors, (43), 2 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) [2022-01-18 10:01:13,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:01:13,110 INFO L93 Difference]: Finished difference Result 807 states and 1508 transitions. [2022-01-18 10:01:13,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 10:01:13,113 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 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 [2022-01-18 10:01:13,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:01:13,127 INFO L225 Difference]: With dead ends: 807 [2022-01-18 10:01:13,127 INFO L226 Difference]: Without dead ends: 608 [2022-01-18 10:01:13,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 10:01:13,132 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:01:13,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:01:13,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2022-01-18 10:01:13,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 608. [2022-01-18 10:01:13,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 606 states have (on average 1.8481848184818481) internal successors, (1120), 607 states have internal predecessors, (1120), 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) [2022-01-18 10:01:13,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 1120 transitions. [2022-01-18 10:01:13,201 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 1120 transitions. Word has length 43 [2022-01-18 10:01:13,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:01:13,202 INFO L470 AbstractCegarLoop]: Abstraction has 608 states and 1120 transitions. [2022-01-18 10:01:13,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 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) [2022-01-18 10:01:13,202 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 1120 transitions. [2022-01-18 10:01:13,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-18 10:01:13,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:01:13,204 INFO L514 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] [2022-01-18 10:01:13,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 10:01:13,204 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 10:01:13,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:01:13,205 INFO L85 PathProgramCache]: Analyzing trace with hash 438148196, now seen corresponding path program 1 times [2022-01-18 10:01:13,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:01:13,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892570950] [2022-01-18 10:01:13,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:01:13,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:01:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:01:13,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:01:13,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:01:13,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892570950] [2022-01-18 10:01:13,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892570950] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:01:13,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:01:13,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 10:01:13,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877704565] [2022-01-18 10:01:13,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:01:13,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 10:01:13,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:01:13,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 10:01:13,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 10:01:13,276 INFO L87 Difference]: Start difference. First operand 608 states and 1120 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2022-01-18 10:01:13,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:01:13,295 INFO L93 Difference]: Finished difference Result 594 states and 1106 transitions. [2022-01-18 10:01:13,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 10:01:13,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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 [2022-01-18 10:01:13,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:01:13,300 INFO L225 Difference]: With dead ends: 594 [2022-01-18 10:01:13,300 INFO L226 Difference]: Without dead ends: 594 [2022-01-18 10:01:13,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 10:01:13,301 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 35 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:01:13,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 144 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:01:13,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-01-18 10:01:13,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2022-01-18 10:01:13,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 593 states have (on average 1.8650927487352444) internal successors, (1106), 593 states have internal predecessors, (1106), 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) [2022-01-18 10:01:13,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 1106 transitions. [2022-01-18 10:01:13,325 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 1106 transitions. Word has length 43 [2022-01-18 10:01:13,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:01:13,325 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 1106 transitions. [2022-01-18 10:01:13,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2022-01-18 10:01:13,326 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 1106 transitions. [2022-01-18 10:01:13,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-18 10:01:13,328 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:01:13,328 INFO L514 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] [2022-01-18 10:01:13,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 10:01:13,329 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 10:01:13,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:01:13,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1717695376, now seen corresponding path program 1 times [2022-01-18 10:01:13,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:01:13,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781677394] [2022-01-18 10:01:13,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:01:13,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:01:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:01:13,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:01:13,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:01:13,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781677394] [2022-01-18 10:01:13,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781677394] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:01:13,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877976086] [2022-01-18 10:01:13,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:01:13,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:01:13,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:01:13,467 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 10:01:13,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 10:01:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:01:13,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-18 10:01:13,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 10:01:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:01:13,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 10:01:13,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:01:13,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877976086] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 10:01:13,891 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 10:01:13,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-18 10:01:13,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623729404] [2022-01-18 10:01:13,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 10:01:13,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 10:01:13,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:01:13,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 10:01:13,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 10:01:13,895 INFO L87 Difference]: Start difference. First operand 594 states and 1106 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 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) [2022-01-18 10:01:13,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:01:13,954 INFO L93 Difference]: Finished difference Result 202 states and 336 transitions. [2022-01-18 10:01:13,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:01:13,955 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-18 10:01:13,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:01:13,955 INFO L225 Difference]: With dead ends: 202 [2022-01-18 10:01:13,955 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 10:01:13,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-01-18 10:01:13,958 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 287 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:01:13,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 257 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:01:13,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 10:01:13,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 10:01:13,961 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) [2022-01-18 10:01:13,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 10:01:13,962 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2022-01-18 10:01:13,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:01:13,962 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 10:01:13,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 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) [2022-01-18 10:01:13,962 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 10:01:13,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 10:01:13,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-18 10:01:13,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 10:01:14,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:01:14,182 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-18 10:01:14,183 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2022-01-18 10:01:14,187 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 10:01:14,188 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 10:01:14,188 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 10:01:14,193 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 106 places, 115 transitions, 238 flow [2022-01-18 10:01:14,200 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 342 states, 341 states have (on average 1.9853372434017595) internal successors, (677), 341 states have internal predecessors, (677), 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) [2022-01-18 10:01:14,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 342 states, 341 states have (on average 1.9853372434017595) internal successors, (677), 341 states have internal predecessors, (677), 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) [2022-01-18 10:01:14,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-18 10:01:14,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:01:14,206 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:01:14,207 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 10:01:14,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:01:14,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1685952027, now seen corresponding path program 1 times [2022-01-18 10:01:14,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:01:14,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874893468] [2022-01-18 10:01:14,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:01:14,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:01:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 10:01:14,242 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 10:01:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 10:01:14,273 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 10:01:14,274 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 10:01:14,274 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-18 10:01:14,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 10:01:14,275 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 10:01:14,275 INFO L308 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-18 10:01:14,276 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 10:01:14,276 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-01-18 10:01:14,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:14,303 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 10:01:14,305 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 10:01:14,305 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 10:01:14,306 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 10:01:14,307 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 136 places, 150 transitions, 318 flow [2022-01-18 10:01:15,109 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 22788 states, 22784 states have (on average 3.3844364466292136) internal successors, (77111), 22787 states have internal predecessors, (77111), 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) [2022-01-18 10:01:15,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 22788 states, 22784 states have (on average 3.3844364466292136) internal successors, (77111), 22787 states have internal predecessors, (77111), 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) [2022-01-18 10:01:15,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-18 10:01:15,177 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:01:15,177 INFO L514 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] [2022-01-18 10:01:15,177 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 10:01:15,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:01:15,179 INFO L85 PathProgramCache]: Analyzing trace with hash 115204507, now seen corresponding path program 1 times [2022-01-18 10:01:15,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:01:15,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977850580] [2022-01-18 10:01:15,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:01:15,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:01:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:01:15,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:01:15,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:01:15,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977850580] [2022-01-18 10:01:15,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977850580] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:01:15,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:01:15,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 10:01:15,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385727377] [2022-01-18 10:01:15,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:01:15,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 10:01:15,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:01:15,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 10:01:15,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 10:01:15,295 INFO L87 Difference]: Start difference. First operand has 22788 states, 22784 states have (on average 3.3844364466292136) internal successors, (77111), 22787 states have internal predecessors, (77111), 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 2 states, 2 states have (on average 21.5) internal successors, (43), 2 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) [2022-01-18 10:01:15,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:01:15,644 INFO L93 Difference]: Finished difference Result 21975 states and 62744 transitions. [2022-01-18 10:01:15,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 10:01:15,645 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 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 [2022-01-18 10:01:15,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:01:15,853 INFO L225 Difference]: With dead ends: 21975 [2022-01-18 10:01:15,854 INFO L226 Difference]: Without dead ends: 16400 [2022-01-18 10:01:15,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 10:01:15,857 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:01:15,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:01:15,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16400 states. [2022-01-18 10:01:16,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16400 to 16400. [2022-01-18 10:01:16,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16400 states, 16397 states have (on average 2.8361285601024577) internal successors, (46504), 16399 states have internal predecessors, (46504), 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) [2022-01-18 10:01:16,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16400 states to 16400 states and 46504 transitions. [2022-01-18 10:01:16,528 INFO L78 Accepts]: Start accepts. Automaton has 16400 states and 46504 transitions. Word has length 43 [2022-01-18 10:01:16,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:01:16,528 INFO L470 AbstractCegarLoop]: Abstraction has 16400 states and 46504 transitions. [2022-01-18 10:01:16,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 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) [2022-01-18 10:01:16,529 INFO L276 IsEmpty]: Start isEmpty. Operand 16400 states and 46504 transitions. [2022-01-18 10:01:16,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-18 10:01:16,532 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:01:16,532 INFO L514 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] [2022-01-18 10:01:16,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 10:01:16,532 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 10:01:16,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:01:16,533 INFO L85 PathProgramCache]: Analyzing trace with hash -390354118, now seen corresponding path program 1 times [2022-01-18 10:01:16,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:01:16,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758436021] [2022-01-18 10:01:16,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:01:16,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:01:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:01:16,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:01:16,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:01:16,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758436021] [2022-01-18 10:01:16,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758436021] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:01:16,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:01:16,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 10:01:16,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552404245] [2022-01-18 10:01:16,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:01:16,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 10:01:16,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:01:16,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 10:01:16,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 10:01:16,654 INFO L87 Difference]: Start difference. First operand 16400 states and 46504 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2022-01-18 10:01:16,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:01:16,750 INFO L93 Difference]: Finished difference Result 16386 states and 46490 transitions. [2022-01-18 10:01:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 10:01:16,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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 [2022-01-18 10:01:16,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:01:16,802 INFO L225 Difference]: With dead ends: 16386 [2022-01-18 10:01:16,802 INFO L226 Difference]: Without dead ends: 16386 [2022-01-18 10:01:16,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 10:01:16,803 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 35 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:01:16,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 202 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:01:16,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16386 states. [2022-01-18 10:01:17,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16386 to 16386. [2022-01-18 10:01:17,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16386 states, 16384 states have (on average 2.8375244140625) internal successors, (46490), 16385 states have internal predecessors, (46490), 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) [2022-01-18 10:01:17,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16386 states to 16386 states and 46490 transitions. [2022-01-18 10:01:17,470 INFO L78 Accepts]: Start accepts. Automaton has 16386 states and 46490 transitions. Word has length 43 [2022-01-18 10:01:17,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:01:17,471 INFO L470 AbstractCegarLoop]: Abstraction has 16386 states and 46490 transitions. [2022-01-18 10:01:17,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2022-01-18 10:01:17,471 INFO L276 IsEmpty]: Start isEmpty. Operand 16386 states and 46490 transitions. [2022-01-18 10:01:17,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-18 10:01:17,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:01:17,473 INFO L514 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] [2022-01-18 10:01:17,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 10:01:17,473 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 10:01:17,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:01:17,474 INFO L85 PathProgramCache]: Analyzing trace with hash -993521947, now seen corresponding path program 1 times [2022-01-18 10:01:17,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:01:17,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430006627] [2022-01-18 10:01:17,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:01:17,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:01:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:01:17,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:01:17,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:01:17,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430006627] [2022-01-18 10:01:17,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430006627] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:01:17,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564463728] [2022-01-18 10:01:17,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:01:17,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:01:17,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:01:17,563 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 10:01:17,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 10:01:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:01:17,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-18 10:01:17,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 10:01:17,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:01:17,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 10:01:17,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:01:17,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564463728] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 10:01:17,872 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 10:01:17,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-18 10:01:17,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145635899] [2022-01-18 10:01:17,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 10:01:17,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 10:01:17,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:01:17,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 10:01:17,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 10:01:17,875 INFO L87 Difference]: Start difference. First operand 16386 states and 46490 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 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) [2022-01-18 10:01:17,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:01:17,960 INFO L93 Difference]: Finished difference Result 5018 states and 13576 transitions. [2022-01-18 10:01:17,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 10:01:17,961 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-18 10:01:17,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:01:17,962 INFO L225 Difference]: With dead ends: 5018 [2022-01-18 10:01:17,962 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 10:01:17,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-18 10:01:17,963 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 423 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:01:17,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 844 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:01:17,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 10:01:17,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 10:01:17,965 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) [2022-01-18 10:01:17,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 10:01:17,965 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2022-01-18 10:01:17,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:01:17,965 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 10:01:17,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 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) [2022-01-18 10:01:17,965 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 10:01:17,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 10:01:17,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-18 10:01:17,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 10:01:18,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-01-18 10:01:18,192 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-18 10:01:18,192 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2022-01-18 10:01:18,193 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 10:01:18,193 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 10:01:18,193 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 10:01:18,195 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 136 places, 150 transitions, 318 flow [2022-01-18 10:01:18,430 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8938 states, 8937 states have (on average 3.223900637797919) internal successors, (28812), 8937 states have internal predecessors, (28812), 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) [2022-01-18 10:01:18,447 INFO L276 IsEmpty]: Start isEmpty. Operand has 8938 states, 8937 states have (on average 3.223900637797919) internal successors, (28812), 8937 states have internal predecessors, (28812), 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) [2022-01-18 10:01:18,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 10:01:18,451 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:01:18,451 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:01:18,451 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 10:01:18,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:01:18,451 INFO L85 PathProgramCache]: Analyzing trace with hash 210109917, now seen corresponding path program 1 times [2022-01-18 10:01:18,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:01:18,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256779063] [2022-01-18 10:01:18,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:01:18,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:01:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 10:01:18,476 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 10:01:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 10:01:18,501 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 10:01:18,502 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 10:01:18,502 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-18 10:01:18,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 10:01:18,502 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 10:01:18,502 INFO L308 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-18 10:01:18,502 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 10:01:18,502 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-01-18 10:01:18,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,526 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,526 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,526 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,526 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,527 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,531 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,531 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,531 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,531 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,531 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,531 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,531 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,531 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,532 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,532 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,532 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,532 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,532 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,532 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,532 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,532 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,535 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,536 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,536 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,536 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,536 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,536 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,536 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,536 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,536 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,537 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,537 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,537 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,537 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,537 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,537 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,537 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,538 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,538 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,538 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,538 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,539 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,539 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,539 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,539 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,539 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,539 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,539 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,542 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,543 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,544 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,545 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,545 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,545 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,545 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,545 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:01:18,548 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-18 10:01:18,550 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 10:01:18,551 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 10:01:18,551 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 10:01:18,554 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 166 places, 185 transitions, 400 flow [2022-01-18 10:01:35,849 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 637444 states, 637439 states have (on average 4.564676776915125) internal successors, (2909703), 637443 states have internal predecessors, (2909703), 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) [2022-01-18 10:01:36,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 637444 states, 637439 states have (on average 4.564676776915125) internal successors, (2909703), 637443 states have internal predecessors, (2909703), 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) [2022-01-18 10:01:36,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-18 10:01:36,925 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:01:36,925 INFO L514 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] [2022-01-18 10:01:36,925 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 10:01:36,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:01:36,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1670365364, now seen corresponding path program 1 times [2022-01-18 10:01:36,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:01:36,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863748512] [2022-01-18 10:01:36,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:01:36,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:01:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:01:36,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:01:36,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:01:36,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863748512] [2022-01-18 10:01:36,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863748512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:01:36,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:01:36,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 10:01:36,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925772300] [2022-01-18 10:01:36,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:01:36,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 10:01:36,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:01:36,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 10:01:36,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 10:01:39,498 INFO L87 Difference]: Start difference. First operand has 637444 states, 637439 states have (on average 4.564676776915125) internal successors, (2909703), 637443 states have internal predecessors, (2909703), 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 2 states, 2 states have (on average 21.5) internal successors, (43), 2 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) [2022-01-18 10:01:48,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:01:48,433 INFO L93 Difference]: Finished difference Result 614679 states and 2348888 transitions. [2022-01-18 10:01:48,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 10:01:48,434 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 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 [2022-01-18 10:01:48,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:01:53,252 INFO L225 Difference]: With dead ends: 614679 [2022-01-18 10:01:53,252 INFO L226 Difference]: Without dead ends: 458576 [2022-01-18 10:01:53,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 10:01:53,253 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:01:53,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:01:55,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458576 states. [2022-01-18 10:02:11,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458576 to 458576. [2022-01-18 10:02:12,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458576 states, 458572 states have (on average 3.8023254799682493) internal successors, (1743640), 458575 states have internal predecessors, (1743640), 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) [2022-01-18 10:02:16,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458576 states to 458576 states and 1743640 transitions. [2022-01-18 10:02:16,450 INFO L78 Accepts]: Start accepts. Automaton has 458576 states and 1743640 transitions. Word has length 43 [2022-01-18 10:02:16,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:02:16,450 INFO L470 AbstractCegarLoop]: Abstraction has 458576 states and 1743640 transitions. [2022-01-18 10:02:16,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 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) [2022-01-18 10:02:16,451 INFO L276 IsEmpty]: Start isEmpty. Operand 458576 states and 1743640 transitions. [2022-01-18 10:02:16,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-18 10:02:16,451 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:02:16,451 INFO L514 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] [2022-01-18 10:02:16,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 10:02:16,451 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 10:02:16,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:02:16,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1164806739, now seen corresponding path program 1 times [2022-01-18 10:02:16,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:02:16,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640824743] [2022-01-18 10:02:16,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:02:16,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:02:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:02:16,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:02:16,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:02:16,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640824743] [2022-01-18 10:02:16,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640824743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:02:16,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:02:16,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 10:02:16,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207904249] [2022-01-18 10:02:16,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:02:16,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 10:02:16,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:02:16,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 10:02:16,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 10:02:16,487 INFO L87 Difference]: Start difference. First operand 458576 states and 1743640 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2022-01-18 10:02:22,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:02:22,649 INFO L93 Difference]: Finished difference Result 458562 states and 1743626 transitions. [2022-01-18 10:02:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 10:02:22,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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 [2022-01-18 10:02:22,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:02:27,141 INFO L225 Difference]: With dead ends: 458562 [2022-01-18 10:02:27,141 INFO L226 Difference]: Without dead ends: 458562 [2022-01-18 10:02:27,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 10:02:27,141 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 35 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:02:27,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 256 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:02:29,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458562 states. [2022-01-18 10:02:50,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458562 to 458562. [2022-01-18 10:02:52,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458562 states, 458559 states have (on average 3.8024027442488317) internal successors, (1743626), 458561 states have internal predecessors, (1743626), 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) [2022-01-18 10:02:57,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458562 states to 458562 states and 1743626 transitions. [2022-01-18 10:02:57,402 INFO L78 Accepts]: Start accepts. Automaton has 458562 states and 1743626 transitions. Word has length 43 [2022-01-18 10:02:57,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:02:57,402 INFO L470 AbstractCegarLoop]: Abstraction has 458562 states and 1743626 transitions. [2022-01-18 10:02:57,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2022-01-18 10:02:57,403 INFO L276 IsEmpty]: Start isEmpty. Operand 458562 states and 1743626 transitions. [2022-01-18 10:02:57,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-18 10:02:57,406 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:02:57,406 INFO L514 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] [2022-01-18 10:02:57,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 10:02:57,406 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 10:02:57,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:02:57,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1762072419, now seen corresponding path program 1 times [2022-01-18 10:02:57,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:02:57,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852011091] [2022-01-18 10:02:57,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:02:57,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:02:57,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:02:57,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:02:57,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:02:57,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852011091] [2022-01-18 10:02:57,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852011091] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:02:57,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713597132] [2022-01-18 10:02:57,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:02:57,460 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:02:57,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:02:57,464 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 10:02:57,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 10:02:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:02:57,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-18 10:02:57,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 10:02:57,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:02:57,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 10:02:57,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:02:57,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713597132] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 10:02:57,714 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 10:02:57,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-18 10:02:57,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638225067] [2022-01-18 10:02:57,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 10:02:57,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 10:02:57,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:02:57,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 10:02:57,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 10:02:57,715 INFO L87 Difference]: Start difference. First operand 458562 states and 1743626 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 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) [2022-01-18 10:03:05,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:03:05,050 INFO L93 Difference]: Finished difference Result 447194 states and 1710712 transitions. [2022-01-18 10:03:05,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 10:03:05,050 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-18 10:03:05,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:03:12,143 INFO L225 Difference]: With dead ends: 447194 [2022-01-18 10:03:12,144 INFO L226 Difference]: Without dead ends: 447194 [2022-01-18 10:03:12,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-18 10:03:12,146 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 567 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:03:12,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [567 Valid, 978 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:03:13,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447194 states. [2022-01-18 10:03:32,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447194 to 447194. [2022-01-18 10:03:33,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447194 states, 447193 states have (on average 3.8254444948825226) internal successors, (1710712), 447193 states have internal predecessors, (1710712), 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) [2022-01-18 10:03:38,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447194 states to 447194 states and 1710712 transitions. [2022-01-18 10:03:38,263 INFO L78 Accepts]: Start accepts. Automaton has 447194 states and 1710712 transitions. Word has length 53 [2022-01-18 10:03:38,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:03:38,264 INFO L470 AbstractCegarLoop]: Abstraction has 447194 states and 1710712 transitions. [2022-01-18 10:03:38,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 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) [2022-01-18 10:03:38,264 INFO L276 IsEmpty]: Start isEmpty. Operand 447194 states and 1710712 transitions. [2022-01-18 10:03:38,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-18 10:03:38,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:03:38,394 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:03:38,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 10:03:38,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:03:38,615 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 10:03:38,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:03:38,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1994006542, now seen corresponding path program 1 times [2022-01-18 10:03:38,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:03:38,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085782200] [2022-01-18 10:03:38,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:03:38,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:03:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:03:38,763 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-01-18 10:03:38,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:03:38,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085782200] [2022-01-18 10:03:38,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085782200] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:03:38,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:03:38,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 10:03:38,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448443687] [2022-01-18 10:03:38,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:03:38,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 10:03:38,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:03:38,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 10:03:38,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 10:03:38,765 INFO L87 Difference]: Start difference. First operand 447194 states and 1710712 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2022-01-18 10:03:47,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:03:47,973 INFO L93 Difference]: Finished difference Result 506395 states and 1919839 transitions. [2022-01-18 10:03:47,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 10:03:47,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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 73 [2022-01-18 10:03:47,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:03:55,240 INFO L225 Difference]: With dead ends: 506395 [2022-01-18 10:03:55,240 INFO L226 Difference]: Without dead ends: 440539 [2022-01-18 10:03:55,241 INFO L932 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 [2022-01-18 10:03:55,241 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 263 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 10:03:55,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 859 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 10:03:57,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440539 states. [2022-01-18 10:04:16,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440539 to 440539. [2022-01-18 10:04:16,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440539 states, 440538 states have (on average 3.822807567111123) internal successors, (1684092), 440538 states have internal predecessors, (1684092), 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) [2022-01-18 10:04:21,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440539 states to 440539 states and 1684092 transitions. [2022-01-18 10:04:21,642 INFO L78 Accepts]: Start accepts. Automaton has 440539 states and 1684092 transitions. Word has length 73 [2022-01-18 10:04:21,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:04:21,653 INFO L470 AbstractCegarLoop]: Abstraction has 440539 states and 1684092 transitions. [2022-01-18 10:04:21,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2022-01-18 10:04:21,653 INFO L276 IsEmpty]: Start isEmpty. Operand 440539 states and 1684092 transitions. [2022-01-18 10:04:21,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-18 10:04:21,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:04:22,000 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:04:22,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 10:04:22,000 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 10:04:22,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:04:22,001 INFO L85 PathProgramCache]: Analyzing trace with hash 903011276, now seen corresponding path program 1 times [2022-01-18 10:04:22,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:04:22,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217121232] [2022-01-18 10:04:22,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:04:22,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:04:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:04:22,125 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:04:22,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:04:22,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217121232] [2022-01-18 10:04:22,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217121232] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:04:22,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865051262] [2022-01-18 10:04:22,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:04:22,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:04:22,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:04:22,144 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 10:04:22,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 10:04:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:04:22,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 10:04:22,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 10:04:22,483 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:04:22,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 10:04:22,678 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:04:22,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865051262] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 10:04:22,679 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 10:04:22,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-18 10:04:22,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781247118] [2022-01-18 10:04:22,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 10:04:22,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 10:04:22,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:04:22,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 10:04:22,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-01-18 10:04:22,682 INFO L87 Difference]: Start difference. First operand 440539 states and 1684092 transitions. Second operand has 18 states, 18 states have (on average 7.111111111111111) internal successors, (128), 18 states have internal predecessors, (128), 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) [2022-01-18 10:04:24,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:04:24,707 INFO L93 Difference]: Finished difference Result 139866 states and 514328 transitions. [2022-01-18 10:04:24,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 10:04:24,707 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.111111111111111) internal successors, (128), 18 states have internal predecessors, (128), 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 84 [2022-01-18 10:04:24,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:04:24,708 INFO L225 Difference]: With dead ends: 139866 [2022-01-18 10:04:24,708 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 10:04:24,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=189, Invalid=363, Unknown=0, NotChecked=0, Total=552 [2022-01-18 10:04:24,709 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 1672 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1672 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:04:24,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1672 Valid, 1312 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:04:24,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 10:04:24,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 10:04:24,710 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) [2022-01-18 10:04:24,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 10:04:24,710 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2022-01-18 10:04:24,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:04:24,710 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 10:04:24,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.111111111111111) internal successors, (128), 18 states have internal predecessors, (128), 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) [2022-01-18 10:04:24,710 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 10:04:24,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 10:04:24,711 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-18 10:04:24,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 10:04:24,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:04:24,928 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-01-18 10:04:24,928 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2022-01-18 10:04:24,929 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 10:04:24,929 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 10:04:24,929 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 10:04:24,930 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 166 places, 185 transitions, 400 flow