/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/triangular-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 08:29:28,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 08:29:28,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 08:29:28,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 08:29:28,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 08:29:28,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 08:29:28,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 08:29:28,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 08:29:28,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 08:29:28,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 08:29:28,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 08:29:28,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 08:29:28,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 08:29:28,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 08:29:28,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 08:29:28,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 08:29:28,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 08:29:28,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 08:29:28,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 08:29:28,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 08:29:28,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 08:29:28,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 08:29:28,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 08:29:28,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 08:29:28,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 08:29:28,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 08:29:28,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 08:29:28,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 08:29:28,279 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 08:29:28,313 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 08:29:28,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 08:29:28,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 08:29:28,314 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 08:29:28,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 08:29:28,315 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 08:29:28,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 08:29:28,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 08:29:28,315 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 08:29:28,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 08:29:28,316 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 08:29:28,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 08:29:28,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 08:29:28,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 08:29:28,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 08:29:28,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 08:29:28,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 08:29:28,317 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 08:29:28,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 08:29:28,317 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 08:29:28,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 08:29:28,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 08:29:28,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 08:29:28,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 08:29:28,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 08:29:28,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 08:29:28,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 08:29:28,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 08:29:28,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 08:29:28,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 08:29:28,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 08:29:28,318 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 08:29:28,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 08:29:28,319 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 08:29:28,319 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 08:29:28,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 08:29:28,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 08:29:28,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 08:29:28,525 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 08:29:28,525 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 08:29:28,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/triangular-2.i [2022-01-18 08:29:28,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be02bf2dc/b58400a23f6947678c9fb91ed2021e66/FLAGfff718953 [2022-01-18 08:29:28,996 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 08:29:28,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-2.i [2022-01-18 08:29:29,006 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be02bf2dc/b58400a23f6947678c9fb91ed2021e66/FLAGfff718953 [2022-01-18 08:29:29,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be02bf2dc/b58400a23f6947678c9fb91ed2021e66 [2022-01-18 08:29:29,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 08:29:29,019 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 08:29:29,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 08:29:29,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 08:29:29,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 08:29:29,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 08:29:29" (1/1) ... [2022-01-18 08:29:29,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f8b5e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:29:29, skipping insertion in model container [2022-01-18 08:29:29,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 08:29:29" (1/1) ... [2022-01-18 08:29:29,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 08:29:29,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 08:29:29,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-2.i[30952,30965] [2022-01-18 08:29:29,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 08:29:29,347 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 08:29:29,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-2.i[30952,30965] [2022-01-18 08:29:29,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 08:29:29,444 INFO L208 MainTranslator]: Completed translation [2022-01-18 08:29:29,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:29:29 WrapperNode [2022-01-18 08:29:29,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 08:29:29,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 08:29:29,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 08:29:29,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 08:29:29,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:29:29" (1/1) ... [2022-01-18 08:29:29,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:29:29" (1/1) ... [2022-01-18 08:29:29,500 INFO L137 Inliner]: procedures = 169, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2022-01-18 08:29:29,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 08:29:29,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 08:29:29,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 08:29:29,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 08:29:29,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:29:29" (1/1) ... [2022-01-18 08:29:29,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:29:29" (1/1) ... [2022-01-18 08:29:29,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:29:29" (1/1) ... [2022-01-18 08:29:29,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:29:29" (1/1) ... [2022-01-18 08:29:29,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:29:29" (1/1) ... [2022-01-18 08:29:29,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:29:29" (1/1) ... [2022-01-18 08:29:29,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:29:29" (1/1) ... [2022-01-18 08:29:29,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 08:29:29,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 08:29:29,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 08:29:29,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 08:29:29,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:29:29" (1/1) ... [2022-01-18 08:29:29,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 08:29:29,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:29:29,572 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 08:29:29,598 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 08:29:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-01-18 08:29:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-01-18 08:29:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-01-18 08:29:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-01-18 08:29:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 08:29:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 08:29:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 08:29:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 08:29:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 08:29:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 08:29:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 08:29:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 08:29:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 08:29:29,614 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 08:29:29,756 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 08:29:29,757 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 08:29:29,868 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 08:29:29,874 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 08:29:29,874 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-18 08:29:29,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 08:29:29 BoogieIcfgContainer [2022-01-18 08:29:29,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 08:29:29,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 08:29:29,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 08:29:29,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 08:29:29,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 08:29:29" (1/3) ... [2022-01-18 08:29:29,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723918a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 08:29:29, skipping insertion in model container [2022-01-18 08:29:29,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:29:29" (2/3) ... [2022-01-18 08:29:29,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723918a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 08:29:29, skipping insertion in model container [2022-01-18 08:29:29,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 08:29:29" (3/3) ... [2022-01-18 08:29:29,882 INFO L111 eAbstractionObserver]: Analyzing ICFG triangular-2.i [2022-01-18 08:29:29,886 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 08:29:29,886 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 08:29:29,886 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 08:29:29,887 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 08:29:29,911 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,912 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,912 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,912 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,915 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,915 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,915 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,915 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,916 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,916 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,916 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,916 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,917 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,917 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,917 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,917 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,918 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,918 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,918 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,918 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,918 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,919 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,919 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,919 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,919 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,919 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,919 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,920 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,920 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,920 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,920 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,920 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,920 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,921 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,921 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,921 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,921 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,921 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,921 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,922 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,922 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,922 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,922 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,923 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,923 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,923 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,923 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,923 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,924 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,924 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,924 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,924 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,924 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,924 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,925 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,925 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,934 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,934 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,935 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,935 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,935 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,935 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,945 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,946 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,946 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,946 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,946 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,946 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:29:29,947 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 08:29:29,986 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 08:29:29,991 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 08:29:29,991 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 08:29:30,000 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 70 transitions, 150 flow [2022-01-18 08:29:30,098 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 783 states, 782 states have (on average 2.9271099744245523) internal successors, (2289), 782 states have internal predecessors, (2289), 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 08:29:30,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 783 states, 782 states have (on average 2.9271099744245523) internal successors, (2289), 782 states have internal predecessors, (2289), 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 08:29:30,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-18 08:29:30,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:29:30,118 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] [2022-01-18 08:29:30,119 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 08:29:30,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:29:30,123 INFO L85 PathProgramCache]: Analyzing trace with hash 398220865, now seen corresponding path program 1 times [2022-01-18 08:29:30,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:29:30,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238256627] [2022-01-18 08:29:30,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:29:30,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:29:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:29:30,583 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 08:29:30,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:29:30,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238256627] [2022-01-18 08:29:30,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238256627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:29:30,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:29:30,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:29:30,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141511131] [2022-01-18 08:29:30,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:29:30,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:29:30,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:29:30,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:29:30,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:29:30,636 INFO L87 Difference]: Start difference. First operand has 783 states, 782 states have (on average 2.9271099744245523) internal successors, (2289), 782 states have internal predecessors, (2289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 08:29:30,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:29:30,808 INFO L93 Difference]: Finished difference Result 1542 states and 4129 transitions. [2022-01-18 08:29:30,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 08:29:30,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 35 [2022-01-18 08:29:30,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:29:30,842 INFO L225 Difference]: With dead ends: 1542 [2022-01-18 08:29:30,843 INFO L226 Difference]: Without dead ends: 1245 [2022-01-18 08:29:30,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-18 08:29:30,846 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 156 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:29:30,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 303 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:29:30,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2022-01-18 08:29:30,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 945. [2022-01-18 08:29:30,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 944 states have (on average 2.702330508474576) internal successors, (2551), 944 states have internal predecessors, (2551), 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 08:29:30,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 2551 transitions. [2022-01-18 08:29:30,952 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 2551 transitions. Word has length 35 [2022-01-18 08:29:30,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:29:30,953 INFO L470 AbstractCegarLoop]: Abstraction has 945 states and 2551 transitions. [2022-01-18 08:29:30,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 08:29:30,954 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 2551 transitions. [2022-01-18 08:29:30,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 08:29:30,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:29:30,963 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] [2022-01-18 08:29:30,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 08:29:30,964 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 08:29:30,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:29:30,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1832706688, now seen corresponding path program 1 times [2022-01-18 08:29:30,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:29:30,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30094779] [2022-01-18 08:29:30,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:29:30,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:29:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:29:31,126 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 08:29:31,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:29:31,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30094779] [2022-01-18 08:29:31,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30094779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:29:31,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:29:31,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:29:31,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90387169] [2022-01-18 08:29:31,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:29:31,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:29:31,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:29:31,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:29:31,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:29:31,129 INFO L87 Difference]: Start difference. First operand 945 states and 2551 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 08:29:31,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:29:31,214 INFO L93 Difference]: Finished difference Result 1197 states and 3183 transitions. [2022-01-18 08:29:31,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 08:29:31,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2022-01-18 08:29:31,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:29:31,223 INFO L225 Difference]: With dead ends: 1197 [2022-01-18 08:29:31,223 INFO L226 Difference]: Without dead ends: 945 [2022-01-18 08:29:31,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 08:29:31,228 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 77 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:29:31,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 357 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:29:31,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2022-01-18 08:29:31,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 803. [2022-01-18 08:29:31,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 802 states have (on average 2.7219451371571073) internal successors, (2183), 802 states have internal predecessors, (2183), 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 08:29:31,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 2183 transitions. [2022-01-18 08:29:31,251 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 2183 transitions. Word has length 39 [2022-01-18 08:29:31,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:29:31,253 INFO L470 AbstractCegarLoop]: Abstraction has 803 states and 2183 transitions. [2022-01-18 08:29:31,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 08:29:31,253 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 2183 transitions. [2022-01-18 08:29:31,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 08:29:31,255 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:29:31,255 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] [2022-01-18 08:29:31,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 08:29:31,256 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 08:29:31,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:29:31,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1559123106, now seen corresponding path program 1 times [2022-01-18 08:29:31,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:29:31,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751028075] [2022-01-18 08:29:31,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:29:31,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:29:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:29:31,384 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 08:29:31,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:29:31,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751028075] [2022-01-18 08:29:31,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751028075] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:29:31,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:29:31,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:29:31,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897966299] [2022-01-18 08:29:31,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:29:31,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:29:31,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:29:31,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:29:31,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:29:31,389 INFO L87 Difference]: Start difference. First operand 803 states and 2183 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 08:29:31,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:29:31,536 INFO L93 Difference]: Finished difference Result 1945 states and 5271 transitions. [2022-01-18 08:29:31,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 08:29:31,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2022-01-18 08:29:31,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:29:31,544 INFO L225 Difference]: With dead ends: 1945 [2022-01-18 08:29:31,544 INFO L226 Difference]: Without dead ends: 1521 [2022-01-18 08:29:31,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 08:29:31,555 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 130 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:29:31,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 383 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:29:31,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2022-01-18 08:29:31,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1021. [2022-01-18 08:29:31,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 1020 states have (on average 2.7) internal successors, (2754), 1020 states have internal predecessors, (2754), 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 08:29:31,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 2754 transitions. [2022-01-18 08:29:31,591 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 2754 transitions. Word has length 39 [2022-01-18 08:29:31,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:29:31,591 INFO L470 AbstractCegarLoop]: Abstraction has 1021 states and 2754 transitions. [2022-01-18 08:29:31,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 08:29:31,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 2754 transitions. [2022-01-18 08:29:31,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 08:29:31,593 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:29:31,593 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] [2022-01-18 08:29:31,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 08:29:31,594 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 08:29:31,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:29:31,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1227227950, now seen corresponding path program 2 times [2022-01-18 08:29:31,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:29:31,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110529428] [2022-01-18 08:29:31,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:29:31,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:29:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:29:31,717 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 08:29:31,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:29:31,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110529428] [2022-01-18 08:29:31,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110529428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:29:31,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:29:31,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:29:31,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822492124] [2022-01-18 08:29:31,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:29:31,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:29:31,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:29:31,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:29:31,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:29:31,730 INFO L87 Difference]: Start difference. First operand 1021 states and 2754 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 08:29:31,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:29:31,798 INFO L93 Difference]: Finished difference Result 1341 states and 3466 transitions. [2022-01-18 08:29:31,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 08:29:31,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2022-01-18 08:29:31,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:29:31,805 INFO L225 Difference]: With dead ends: 1341 [2022-01-18 08:29:31,805 INFO L226 Difference]: Without dead ends: 1031 [2022-01-18 08:29:31,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-18 08:29:31,811 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 107 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:29:31,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 331 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:29:31,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-01-18 08:29:31,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 879. [2022-01-18 08:29:31,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 878 states have (on average 2.7004555808656034) internal successors, (2371), 878 states have internal predecessors, (2371), 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 08:29:31,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 2371 transitions. [2022-01-18 08:29:31,837 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 2371 transitions. Word has length 39 [2022-01-18 08:29:31,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:29:31,838 INFO L470 AbstractCegarLoop]: Abstraction has 879 states and 2371 transitions. [2022-01-18 08:29:31,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 08:29:31,838 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 2371 transitions. [2022-01-18 08:29:31,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-18 08:29:31,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:29:31,840 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 08:29:31,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 08:29:31,840 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 08:29:31,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:29:31,842 INFO L85 PathProgramCache]: Analyzing trace with hash -2144864227, now seen corresponding path program 1 times [2022-01-18 08:29:31,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:29:31,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962672230] [2022-01-18 08:29:31,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:29:31,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:29:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:29:31,956 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 08:29:31,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:29:31,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962672230] [2022-01-18 08:29:31,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962672230] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:29:31,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:29:31,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 08:29:31,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488565709] [2022-01-18 08:29:31,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:29:31,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 08:29:31,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:29:31,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 08:29:31,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-18 08:29:31,958 INFO L87 Difference]: Start difference. First operand 879 states and 2371 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 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 08:29:32,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:29:32,108 INFO L93 Difference]: Finished difference Result 1527 states and 4059 transitions. [2022-01-18 08:29:32,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 08:29:32,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 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 08:29:32,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:29:32,113 INFO L225 Difference]: With dead ends: 1527 [2022-01-18 08:29:32,113 INFO L226 Difference]: Without dead ends: 1134 [2022-01-18 08:29:32,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-18 08:29:32,114 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 204 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:29:32,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 374 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:29:32,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2022-01-18 08:29:32,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1036. [2022-01-18 08:29:32,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 1035 states have (on average 2.7304347826086954) internal successors, (2826), 1035 states have internal predecessors, (2826), 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 08:29:32,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 2826 transitions. [2022-01-18 08:29:32,137 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 2826 transitions. Word has length 43 [2022-01-18 08:29:32,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:29:32,137 INFO L470 AbstractCegarLoop]: Abstraction has 1036 states and 2826 transitions. [2022-01-18 08:29:32,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 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 08:29:32,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 2826 transitions. [2022-01-18 08:29:32,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 08:29:32,139 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:29:32,139 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:29:32,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 08:29:32,140 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 08:29:32,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:29:32,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2080476017, now seen corresponding path program 1 times [2022-01-18 08:29:32,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:29:32,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293942463] [2022-01-18 08:29:32,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:29:32,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:29:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:29:32,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:29:32,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:29:32,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293942463] [2022-01-18 08:29:32,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293942463] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:29:32,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310621173] [2022-01-18 08:29:32,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:29:32,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:29:32,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:29:32,211 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 08:29:32,239 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 08:29:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:29:32,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-18 08:29:32,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:29:32,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:29:32,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:29:32,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:29:32,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310621173] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:29:32,756 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:29:32,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2022-01-18 08:29:32,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822291571] [2022-01-18 08:29:32,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:29:32,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 08:29:32,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:29:32,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 08:29:32,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-01-18 08:29:32,757 INFO L87 Difference]: Start difference. First operand 1036 states and 2826 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 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 08:29:33,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:29:33,073 INFO L93 Difference]: Finished difference Result 2380 states and 6538 transitions. [2022-01-18 08:29:33,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 08:29:33,073 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 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 48 [2022-01-18 08:29:33,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:29:33,081 INFO L225 Difference]: With dead ends: 2380 [2022-01-18 08:29:33,081 INFO L226 Difference]: Without dead ends: 1391 [2022-01-18 08:29:33,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=227, Invalid=529, Unknown=0, NotChecked=0, Total=756 [2022-01-18 08:29:33,084 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 442 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:29:33,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 661 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:29:33,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2022-01-18 08:29:33,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 1225. [2022-01-18 08:29:33,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 1224 states have (on average 2.732843137254902) internal successors, (3345), 1224 states have internal predecessors, (3345), 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 08:29:33,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 3345 transitions. [2022-01-18 08:29:33,121 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 3345 transitions. Word has length 48 [2022-01-18 08:29:33,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:29:33,122 INFO L470 AbstractCegarLoop]: Abstraction has 1225 states and 3345 transitions. [2022-01-18 08:29:33,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 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 08:29:33,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 3345 transitions. [2022-01-18 08:29:33,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 08:29:33,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:29:33,125 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-01-18 08:29:33,155 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 08:29:33,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-01-18 08:29:33,344 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 08:29:33,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:29:33,344 INFO L85 PathProgramCache]: Analyzing trace with hash 2080275648, now seen corresponding path program 1 times [2022-01-18 08:29:33,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:29:33,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651731477] [2022-01-18 08:29:33,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:29:33,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:29:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:29:33,468 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 08:29:33,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:29:33,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651731477] [2022-01-18 08:29:33,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651731477] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:29:33,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121470028] [2022-01-18 08:29:33,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:29:33,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:29:33,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:29:33,471 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 08:29:33,472 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 08:29:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:29:33,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2022-01-18 08:29:33,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:29:33,720 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 08:29:33,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:29:33,945 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 08:29:33,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121470028] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:29:33,945 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:29:33,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 17 [2022-01-18 08:29:33,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774053567] [2022-01-18 08:29:33,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:29:33,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 08:29:33,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:29:33,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 08:29:33,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-01-18 08:29:33,947 INFO L87 Difference]: Start difference. First operand 1225 states and 3345 transitions. Second operand has 17 states, 17 states have (on average 6.882352941176471) internal successors, (117), 17 states have internal predecessors, (117), 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 08:29:34,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:29:34,571 INFO L93 Difference]: Finished difference Result 5394 states and 14706 transitions. [2022-01-18 08:29:34,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 08:29:34,572 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.882352941176471) internal successors, (117), 17 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-18 08:29:34,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:29:34,587 INFO L225 Difference]: With dead ends: 5394 [2022-01-18 08:29:34,587 INFO L226 Difference]: Without dead ends: 3609 [2022-01-18 08:29:34,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=603, Invalid=1559, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 08:29:34,589 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 734 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:29:34,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [734 Valid, 1043 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:29:34,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3609 states. [2022-01-18 08:29:34,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3609 to 2319. [2022-01-18 08:29:34,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2319 states, 2318 states have (on average 2.7791199309749786) internal successors, (6442), 2318 states have internal predecessors, (6442), 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 08:29:34,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 6442 transitions. [2022-01-18 08:29:34,657 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 6442 transitions. Word has length 63 [2022-01-18 08:29:34,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:29:34,657 INFO L470 AbstractCegarLoop]: Abstraction has 2319 states and 6442 transitions. [2022-01-18 08:29:34,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.882352941176471) internal successors, (117), 17 states have internal predecessors, (117), 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 08:29:34,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 6442 transitions. [2022-01-18 08:29:34,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-18 08:29:34,663 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:29:34,663 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 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] [2022-01-18 08:29:34,691 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 08:29:34,885 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 08:29:34,886 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 08:29:34,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:29:34,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1595975090, now seen corresponding path program 2 times [2022-01-18 08:29:34,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:29:34,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319711480] [2022-01-18 08:29:34,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:29:34,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:29:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:29:35,040 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:29:35,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:29:35,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319711480] [2022-01-18 08:29:35,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319711480] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:29:35,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579010711] [2022-01-18 08:29:35,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 08:29:35,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:29:35,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:29:35,042 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 08:29:35,043 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 08:29:35,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 08:29:35,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 08:29:35,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-18 08:29:35,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:29:35,303 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:29:35,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:29:35,507 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:29:35,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579010711] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:29:35,507 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:29:35,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 17 [2022-01-18 08:29:35,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100554818] [2022-01-18 08:29:35,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:29:35,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 08:29:35,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:29:35,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 08:29:35,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2022-01-18 08:29:35,510 INFO L87 Difference]: Start difference. First operand 2319 states and 6442 transitions. Second operand has 17 states, 17 states have (on average 5.0) internal successors, (85), 17 states have internal predecessors, (85), 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 08:29:35,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:29:35,960 INFO L93 Difference]: Finished difference Result 4823 states and 13178 transitions. [2022-01-18 08:29:35,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 08:29:35,960 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.0) internal successors, (85), 17 states have internal predecessors, (85), 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 78 [2022-01-18 08:29:35,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:29:35,979 INFO L225 Difference]: With dead ends: 4823 [2022-01-18 08:29:35,979 INFO L226 Difference]: Without dead ends: 4009 [2022-01-18 08:29:35,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=399, Invalid=1083, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 08:29:35,980 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 590 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:29:35,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [590 Valid, 1135 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:29:35,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4009 states. [2022-01-18 08:29:36,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4009 to 2394. [2022-01-18 08:29:36,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2394 states, 2393 states have (on average 2.786042624320936) internal successors, (6667), 2393 states have internal predecessors, (6667), 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 08:29:36,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2394 states to 2394 states and 6667 transitions. [2022-01-18 08:29:36,048 INFO L78 Accepts]: Start accepts. Automaton has 2394 states and 6667 transitions. Word has length 78 [2022-01-18 08:29:36,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:29:36,048 INFO L470 AbstractCegarLoop]: Abstraction has 2394 states and 6667 transitions. [2022-01-18 08:29:36,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.0) internal successors, (85), 17 states have internal predecessors, (85), 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 08:29:36,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2394 states and 6667 transitions. [2022-01-18 08:29:36,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-18 08:29:36,053 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:29:36,053 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:36,076 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 08:29:36,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:29:36,268 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 08:29:36,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:29:36,268 INFO L85 PathProgramCache]: Analyzing trace with hash 981781773, now seen corresponding path program 3 times [2022-01-18 08:29:36,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:29:36,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400358980] [2022-01-18 08:29:36,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:29:36,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:29:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:29:36,291 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 08:29:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:29:36,340 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 08:29:36,341 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 08:29:36,341 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 08:29:36,343 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 08:29:36,343 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 08:29:36,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 08:29:36,346 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2022-01-18 08:29:36,349 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 08:29:36,349 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 08:29:36,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 08:29:36 BasicIcfg [2022-01-18 08:29:36,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 08:29:36,422 INFO L158 Benchmark]: Toolchain (without parser) took 7402.96ms. Allocated memory was 362.8MB in the beginning and 463.5MB in the end (delta: 100.7MB). Free memory was 308.2MB in the beginning and 217.1MB in the end (delta: 91.0MB). Peak memory consumption was 193.4MB. Max. memory is 16.0GB. [2022-01-18 08:29:36,422 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 362.8MB. Free memory is still 326.8MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 08:29:36,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.83ms. Allocated memory is still 362.8MB. Free memory was 308.0MB in the beginning and 328.0MB in the end (delta: -20.0MB). Peak memory consumption was 19.6MB. Max. memory is 16.0GB. [2022-01-18 08:29:36,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.54ms. Allocated memory is still 362.8MB. Free memory was 328.0MB in the beginning and 325.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 08:29:36,423 INFO L158 Benchmark]: Boogie Preprocessor took 33.97ms. Allocated memory is still 362.8MB. Free memory was 325.9MB in the beginning and 324.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 08:29:36,423 INFO L158 Benchmark]: RCFGBuilder took 340.35ms. Allocated memory is still 362.8MB. Free memory was 324.8MB in the beginning and 312.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-18 08:29:36,423 INFO L158 Benchmark]: TraceAbstraction took 6544.78ms. Allocated memory was 362.8MB in the beginning and 463.5MB in the end (delta: 100.7MB). Free memory was 311.2MB in the beginning and 217.1MB in the end (delta: 94.1MB). Peak memory consumption was 196.9MB. Max. memory is 16.0GB. [2022-01-18 08:29:36,425 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 362.8MB. Free memory is still 326.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 424.83ms. Allocated memory is still 362.8MB. Free memory was 308.0MB in the beginning and 328.0MB in the end (delta: -20.0MB). Peak memory consumption was 19.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 54.54ms. Allocated memory is still 362.8MB. Free memory was 328.0MB in the beginning and 325.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.97ms. Allocated memory is still 362.8MB. Free memory was 325.9MB in the beginning and 324.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 340.35ms. Allocated memory is still 362.8MB. Free memory was 324.8MB in the beginning and 312.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 6544.78ms. Allocated memory was 362.8MB in the beginning and 463.5MB in the end (delta: 100.7MB). Free memory was 311.2MB in the beginning and 217.1MB in the end (delta: 94.1MB). Peak memory consumption was 196.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L694] 0 int i = 3, j = 6; VAL [i=3, j=6] [L712] 0 pthread_t id1, id2; VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, i=3, id1={5:0}, id2={3:0}, j=6] [L713] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=49, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, i=3, id1={5:0}, id2={3:0}, j=6, pthread_create(&id1, ((void *)0), t1, ((void *)0))=6] [L696] 1 int k = 0; VAL [arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L696] COND TRUE 1 k < 5 VAL [arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, i=7, j=6, k=0] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, i=7, j=6, k=1, k++=0] [L696] COND TRUE 1 k < 5 VAL [arg={0:0}, arg={0:0}, i=7, j=6, k=1] [L714] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=49, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, i=7, id1={5:0}, id2={3:0}, j=6, k=1, pthread_create(&id2, ((void *)0), t2, ((void *)0))=7] [L704] 2 int k = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L704] COND TRUE 2 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=0, k=1] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L704] COND TRUE 2 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=1] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=1, k=1] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=1] [L704] COND TRUE 2 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=1] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L696] COND TRUE 1 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=2] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=2, k=2] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=2] [L704] COND TRUE 2 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=2] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L696] COND TRUE 1 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=3] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=3, k=3] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=3, k=4] [L704] COND TRUE 2 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=3, k=4] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=4] [L696] COND TRUE 1 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=4] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=4] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=4, k=4] [L716] 0 int condI = i >= (2*5 +6); VAL [\old(argc)=49, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, i=15, id1={5:0}, id2={3:0}, j=16, k=4, k=4] [L719] 0 int condJ = j >= (2*5 +6); VAL [\old(argc)=49, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, condJ=1, i=15, id1={5:0}, id2={3:0}, j=16, k=4, k=4] [L721] COND TRUE 0 condI || condJ VAL [\old(argc)=49, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, condJ=1, i=15, id1={5:0}, id2={3:0}, j=16, k=4, k=4] [L722] 0 reach_error() VAL [\old(argc)=49, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, condJ=1, i=15, id1={5:0}, id2={3:0}, j=16, k=4, k=4] - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 88 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2440 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2440 mSDsluCounter, 4587 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3879 mSDsCounter, 199 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 762 IncrementalHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 199 mSolverCounterUnsat, 768 mSDtfsCounter, 762 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 522 GetRequests, 371 SyntacticMatches, 2 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1083 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2394occurred in iteration=8, InterpolantAutomatonStates: 130, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 4263 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 656 NumberOfCodeBlocks, 656 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 748 ConstructedInterpolants, 0 QuantifiedInterpolants, 2313 SizeOfPredicates, 20 NumberOfNonLiveVariables, 480 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 14 InterpolantComputations, 5 PerfectInterpolantSequences, 3/252 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-18 08:29:36,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...