/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 18:10:31,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 18:10:31,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 18:10:31,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 18:10:31,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 18:10:31,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 18:10:31,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 18:10:31,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 18:10:31,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 18:10:31,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 18:10:31,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 18:10:31,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 18:10:31,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 18:10:31,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 18:10:31,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 18:10:31,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 18:10:31,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 18:10:31,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 18:10:31,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 18:10:31,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 18:10:31,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 18:10:31,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 18:10:31,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 18:10:31,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 18:10:31,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 18:10:31,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 18:10:31,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 18:10:31,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 18:10:31,360 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 18:10:31,383 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 18:10:31,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 18:10:31,384 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 18:10:31,384 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 18:10:31,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 18:10:31,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 18:10:31,385 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 18:10:31,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 18:10:31,385 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 18:10:31,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 18:10:31,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 18:10:31,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 18:10:31,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 18:10:31,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 18:10:31,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 18:10:31,386 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 18:10:31,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 18:10:31,387 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 18:10:31,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 18:10:31,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 18:10:31,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 18:10:31,387 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 18:10:31,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 18:10:31,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:10:31,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 18:10:31,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 18:10:31,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 18:10:31,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 18:10:31,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 18:10:31,389 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 18:10:31,389 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 18:10:31,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 18:10:31,389 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 18:10:31,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 18:10:31,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 18:10:31,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 18:10:31,584 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 18:10:31,585 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 18:10:31,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2022-03-15 18:10:31,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23262265b/8693ea107a3746cab36ede22e03ad950/FLAG260ac89df [2022-03-15 18:10:32,016 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 18:10:32,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2022-03-15 18:10:32,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23262265b/8693ea107a3746cab36ede22e03ad950/FLAG260ac89df [2022-03-15 18:10:32,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23262265b/8693ea107a3746cab36ede22e03ad950 [2022-03-15 18:10:32,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 18:10:32,411 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 18:10:32,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 18:10:32,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 18:10:32,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 18:10:32,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:10:32" (1/1) ... [2022-03-15 18:10:32,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7840c4e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:32, skipping insertion in model container [2022-03-15 18:10:32,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:10:32" (1/1) ... [2022-03-15 18:10:32,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 18:10:32,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 18:10:32,609 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i[1096,1109] [2022-03-15 18:10:32,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:10:32,747 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 18:10:32,756 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i[1096,1109] [2022-03-15 18:10:32,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:10:32,816 INFO L208 MainTranslator]: Completed translation [2022-03-15 18:10:32,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:32 WrapperNode [2022-03-15 18:10:32,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 18:10:32,819 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 18:10:32,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 18:10:32,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 18:10:32,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:32" (1/1) ... [2022-03-15 18:10:32,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:32" (1/1) ... [2022-03-15 18:10:32,871 INFO L137 Inliner]: procedures = 162, calls = 46, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 90 [2022-03-15 18:10:32,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 18:10:32,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 18:10:32,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 18:10:32,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 18:10:32,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:32" (1/1) ... [2022-03-15 18:10:32,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:32" (1/1) ... [2022-03-15 18:10:32,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:32" (1/1) ... [2022-03-15 18:10:32,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:32" (1/1) ... [2022-03-15 18:10:32,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:32" (1/1) ... [2022-03-15 18:10:32,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:32" (1/1) ... [2022-03-15 18:10:32,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:32" (1/1) ... [2022-03-15 18:10:32,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 18:10:32,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 18:10:32,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 18:10:32,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 18:10:32,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:32" (1/1) ... [2022-03-15 18:10:32,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:10:32,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:10:32,929 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) [2022-03-15 18:10:32,943 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 [2022-03-15 18:10:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 18:10:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 18:10:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-15 18:10:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 18:10:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 18:10:32,972 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-03-15 18:10:32,972 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-03-15 18:10:32,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 18:10:32,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 18:10:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 18:10:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 18:10:32,974 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 18:10:33,044 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 18:10:33,045 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 18:10:33,245 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 18:10:33,251 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 18:10:33,251 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 18:10:33,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:10:33 BoogieIcfgContainer [2022-03-15 18:10:33,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 18:10:33,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 18:10:33,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 18:10:33,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 18:10:33,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 06:10:32" (1/3) ... [2022-03-15 18:10:33,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bdae482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:10:33, skipping insertion in model container [2022-03-15 18:10:33,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:32" (2/3) ... [2022-03-15 18:10:33,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bdae482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:10:33, skipping insertion in model container [2022-03-15 18:10:33,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:10:33" (3/3) ... [2022-03-15 18:10:33,257 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2022-03-15 18:10:33,260 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 18:10:33,260 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 18:10:33,261 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-03-15 18:10:33,261 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 18:10:33,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,285 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,285 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,285 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,285 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,297 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,298 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:33,301 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-15 18:10:33,327 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 18:10:33,332 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 18:10:33,332 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 18:10:33,343 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 18:10:33,349 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 143 transitions, 294 flow [2022-03-15 18:10:33,350 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 143 transitions, 294 flow [2022-03-15 18:10:33,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 143 places, 143 transitions, 294 flow [2022-03-15 18:10:33,421 INFO L129 PetriNetUnfolder]: 4/142 cut-off events. [2022-03-15 18:10:33,421 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-03-15 18:10:33,426 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 142 events. 4/142 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 115 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-03-15 18:10:33,430 INFO L116 LiptonReduction]: Number of co-enabled transitions 4026 [2022-03-15 18:10:36,127 INFO L131 LiptonReduction]: Checked pairs total: 12759 [2022-03-15 18:10:36,128 INFO L133 LiptonReduction]: Total number of compositions: 124 [2022-03-15 18:10:36,140 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 48 transitions, 104 flow [2022-03-15 18:10:36,170 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 342 states, 338 states have (on average 2.059171597633136) internal successors, (696), 341 states have internal predecessors, (696), 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) [2022-03-15 18:10:36,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 342 states, 338 states have (on average 2.059171597633136) internal successors, (696), 341 states have internal predecessors, (696), 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) [2022-03-15 18:10:36,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-03-15 18:10:36,175 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:36,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-03-15 18:10:36,176 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 18:10:36,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:36,179 INFO L85 PathProgramCache]: Analyzing trace with hash 468604870, now seen corresponding path program 1 times [2022-03-15 18:10:36,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:36,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920813896] [2022-03-15 18:10:36,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:36,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:10:36,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:10:36,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:10:36,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920813896] [2022-03-15 18:10:36,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920813896] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:10:36,353 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:10:36,353 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 18:10:36,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1336195873] [2022-03-15 18:10:36,354 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:10:36,356 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:10:36,361 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2022-03-15 18:10:36,362 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:10:36,364 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:10:36,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 18:10:36,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:10:36,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 18:10:36,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:10:36,379 INFO L87 Difference]: Start difference. First operand has 342 states, 338 states have (on average 2.059171597633136) internal successors, (696), 341 states have internal predecessors, (696), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-03-15 18:10:36,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:10:36,452 INFO L93 Difference]: Finished difference Result 512 states and 958 transitions. [2022-03-15 18:10:36,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:10:36,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-03-15 18:10:36,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:10:36,461 INFO L225 Difference]: With dead ends: 512 [2022-03-15 18:10:36,462 INFO L226 Difference]: Without dead ends: 423 [2022-03-15 18:10:36,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:10:36,464 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 27 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:10:36,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 24 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:10:36,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-03-15 18:10:36,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 409. [2022-03-15 18:10:36,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 405 states have (on average 1.9111111111111112) internal successors, (774), 408 states have internal predecessors, (774), 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) [2022-03-15 18:10:36,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 774 transitions. [2022-03-15 18:10:36,502 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 774 transitions. Word has length 5 [2022-03-15 18:10:36,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:10:36,502 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 774 transitions. [2022-03-15 18:10:36,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-03-15 18:10:36,503 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 774 transitions. [2022-03-15 18:10:36,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-03-15 18:10:36,503 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:36,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:10:36,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 18:10:36,504 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 18:10:36,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:36,504 INFO L85 PathProgramCache]: Analyzing trace with hash 369462674, now seen corresponding path program 1 times [2022-03-15 18:10:36,505 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:36,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628151342] [2022-03-15 18:10:36,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:36,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:10:36,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:10:36,583 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:10:36,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628151342] [2022-03-15 18:10:36,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628151342] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:10:36,583 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:10:36,583 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 18:10:36,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [21206326] [2022-03-15 18:10:36,583 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:10:36,584 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:10:36,585 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 12 transitions. [2022-03-15 18:10:36,585 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:10:36,599 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:10:36,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 18:10:36,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:10:36,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 18:10:36,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 18:10:36,601 INFO L87 Difference]: Start difference. First operand 409 states and 774 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-03-15 18:10:36,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:10:36,666 INFO L93 Difference]: Finished difference Result 189 states and 304 transitions. [2022-03-15 18:10:36,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 18:10:36,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 8 [2022-03-15 18:10:36,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:10:36,667 INFO L225 Difference]: With dead ends: 189 [2022-03-15 18:10:36,667 INFO L226 Difference]: Without dead ends: 189 [2022-03-15 18:10:36,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 18:10:36,669 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 31 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:10:36,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 1 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:10:36,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-03-15 18:10:36,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 178. [2022-03-15 18:10:36,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 174 states have (on average 1.6896551724137931) internal successors, (294), 177 states have internal predecessors, (294), 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) [2022-03-15 18:10:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 294 transitions. [2022-03-15 18:10:36,690 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 294 transitions. Word has length 8 [2022-03-15 18:10:36,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:10:36,690 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 294 transitions. [2022-03-15 18:10:36,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-03-15 18:10:36,690 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 294 transitions. [2022-03-15 18:10:36,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-15 18:10:36,691 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:36,691 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:10:36,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 18:10:36,692 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 18:10:36,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:36,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1889478724, now seen corresponding path program 1 times [2022-03-15 18:10:36,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:36,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982179804] [2022-03-15 18:10:36,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:36,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:10:36,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:10:36,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:10:36,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982179804] [2022-03-15 18:10:36,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982179804] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:10:36,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:10:36,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 18:10:36,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [891306594] [2022-03-15 18:10:36,777 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:10:36,777 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:10:36,778 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2022-03-15 18:10:36,779 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:10:36,779 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:10:36,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 18:10:36,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:10:36,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 18:10:36,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:10:36,780 INFO L87 Difference]: Start difference. First operand 178 states and 294 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-03-15 18:10:36,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:10:36,804 INFO L93 Difference]: Finished difference Result 174 states and 287 transitions. [2022-03-15 18:10:36,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:10:36,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2022-03-15 18:10:36,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:10:36,806 INFO L225 Difference]: With dead ends: 174 [2022-03-15 18:10:36,806 INFO L226 Difference]: Without dead ends: 174 [2022-03-15 18:10:36,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:10:36,807 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 16 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:10:36,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 13 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:10:36,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-03-15 18:10:36,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-03-15 18:10:36,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 171 states have (on average 1.6783625730994152) internal successors, (287), 173 states have internal predecessors, (287), 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) [2022-03-15 18:10:36,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 287 transitions. [2022-03-15 18:10:36,811 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 287 transitions. Word has length 12 [2022-03-15 18:10:36,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:10:36,811 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 287 transitions. [2022-03-15 18:10:36,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-03-15 18:10:36,811 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 287 transitions. [2022-03-15 18:10:36,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-03-15 18:10:36,812 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:36,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:10:36,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 18:10:36,812 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 18:10:36,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:36,813 INFO L85 PathProgramCache]: Analyzing trace with hash 118734982, now seen corresponding path program 1 times [2022-03-15 18:10:36,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:36,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795206403] [2022-03-15 18:10:36,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:36,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:10:36,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:10:36,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:10:36,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795206403] [2022-03-15 18:10:36,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795206403] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:10:36,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:10:36,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 18:10:36,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [105905766] [2022-03-15 18:10:36,894 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:10:36,895 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:10:36,897 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2022-03-15 18:10:36,897 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:10:36,897 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:10:36,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 18:10:36,897 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:10:36,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 18:10:36,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:10:36,898 INFO L87 Difference]: Start difference. First operand 174 states and 287 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-03-15 18:10:36,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:10:36,941 INFO L93 Difference]: Finished difference Result 165 states and 259 transitions. [2022-03-15 18:10:36,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 18:10:36,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2022-03-15 18:10:36,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:10:36,942 INFO L225 Difference]: With dead ends: 165 [2022-03-15 18:10:36,942 INFO L226 Difference]: Without dead ends: 143 [2022-03-15 18:10:36,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 18:10:36,948 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 24 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:10:36,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 27 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:10:36,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-03-15 18:10:36,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2022-03-15 18:10:36,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 141 states have (on average 1.6028368794326242) internal successors, (226), 142 states have internal predecessors, (226), 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) [2022-03-15 18:10:36,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 226 transitions. [2022-03-15 18:10:36,956 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 226 transitions. Word has length 13 [2022-03-15 18:10:36,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:10:36,956 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 226 transitions. [2022-03-15 18:10:36,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-03-15 18:10:36,956 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 226 transitions. [2022-03-15 18:10:36,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 18:10:36,957 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:36,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:10:36,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 18:10:36,957 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 18:10:36,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:36,958 INFO L85 PathProgramCache]: Analyzing trace with hash -343277498, now seen corresponding path program 1 times [2022-03-15 18:10:36,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:36,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848337201] [2022-03-15 18:10:36,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:36,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:10:37,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:10:37,010 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:10:37,010 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848337201] [2022-03-15 18:10:37,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848337201] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:10:37,011 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:10:37,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 18:10:37,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [525806425] [2022-03-15 18:10:37,011 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:10:37,013 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:10:37,015 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 21 transitions. [2022-03-15 18:10:37,015 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:10:37,023 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3698#(not (= (select (select |#pthreadsMutex| |~#__global_lock~0.base|) |~#__global_lock~0.offset|) 0))] [2022-03-15 18:10:37,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 18:10:37,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:10:37,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 18:10:37,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 18:10:37,025 INFO L87 Difference]: Start difference. First operand 143 states and 226 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-03-15 18:10:37,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:10:37,070 INFO L93 Difference]: Finished difference Result 110 states and 144 transitions. [2022-03-15 18:10:37,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:10:37,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 19 [2022-03-15 18:10:37,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:10:37,071 INFO L225 Difference]: With dead ends: 110 [2022-03-15 18:10:37,071 INFO L226 Difference]: Without dead ends: 105 [2022-03-15 18:10:37,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 18:10:37,072 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:10:37,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 6 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:10:37,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-03-15 18:10:37,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 99. [2022-03-15 18:10:37,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 96 states have (on average 1.375) internal successors, (132), 98 states have internal predecessors, (132), 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) [2022-03-15 18:10:37,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 132 transitions. [2022-03-15 18:10:37,075 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 132 transitions. Word has length 19 [2022-03-15 18:10:37,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:10:37,075 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 132 transitions. [2022-03-15 18:10:37,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-03-15 18:10:37,076 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 132 transitions. [2022-03-15 18:10:37,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-15 18:10:37,079 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:37,079 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] [2022-03-15 18:10:37,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 18:10:37,080 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 18:10:37,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:37,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2053817002, now seen corresponding path program 1 times [2022-03-15 18:10:37,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:37,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585115044] [2022-03-15 18:10:37,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:37,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:10:37,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:10:37,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:10:37,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585115044] [2022-03-15 18:10:37,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585115044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:10:37,229 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:10:37,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 18:10:37,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2080226003] [2022-03-15 18:10:37,229 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:10:37,231 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:10:37,233 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 20 transitions. [2022-03-15 18:10:37,234 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:10:37,234 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:10:37,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 18:10:37,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:10:37,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 18:10:37,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:10:37,235 INFO L87 Difference]: Start difference. First operand 99 states and 132 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2022-03-15 18:10:37,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:10:37,283 INFO L93 Difference]: Finished difference Result 93 states and 126 transitions. [2022-03-15 18:10:37,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 18:10:37,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2022-03-15 18:10:37,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:10:37,284 INFO L225 Difference]: With dead ends: 93 [2022-03-15 18:10:37,284 INFO L226 Difference]: Without dead ends: 81 [2022-03-15 18:10:37,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:10:37,285 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:10:37,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:10:37,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-03-15 18:10:37,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2022-03-15 18:10:37,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 80 states have internal predecessors, (114), 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) [2022-03-15 18:10:37,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 114 transitions. [2022-03-15 18:10:37,288 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 114 transitions. Word has length 20 [2022-03-15 18:10:37,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:10:37,288 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 114 transitions. [2022-03-15 18:10:37,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2022-03-15 18:10:37,289 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 114 transitions. [2022-03-15 18:10:37,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-03-15 18:10:37,290 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:37,290 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] [2022-03-15 18:10:37,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 18:10:37,290 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 18:10:37,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:37,291 INFO L85 PathProgramCache]: Analyzing trace with hash -145983985, now seen corresponding path program 1 times [2022-03-15 18:10:37,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:37,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669110491] [2022-03-15 18:10:37,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:37,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:10:37,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:10:37,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:10:37,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669110491] [2022-03-15 18:10:37,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669110491] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:10:37,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:10:37,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 18:10:37,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [684969037] [2022-03-15 18:10:37,391 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:10:37,394 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:10:37,397 INFO L252 McrAutomatonBuilder]: Finished intersection with 25 states and 24 transitions. [2022-03-15 18:10:37,397 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:10:37,397 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:10:37,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 18:10:37,398 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:10:37,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 18:10:37,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 18:10:37,398 INFO L87 Difference]: Start difference. First operand 81 states and 114 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-03-15 18:10:37,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:10:37,432 INFO L93 Difference]: Finished difference Result 57 states and 72 transitions. [2022-03-15 18:10:37,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 18:10:37,433 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2022-03-15 18:10:37,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:10:37,433 INFO L225 Difference]: With dead ends: 57 [2022-03-15 18:10:37,433 INFO L226 Difference]: Without dead ends: 53 [2022-03-15 18:10:37,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 18:10:37,434 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:10:37,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:10:37,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-03-15 18:10:37,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-03-15 18:10:37,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 52 states have internal predecessors, (68), 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) [2022-03-15 18:10:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2022-03-15 18:10:37,435 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 24 [2022-03-15 18:10:37,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:10:37,436 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2022-03-15 18:10:37,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-03-15 18:10:37,436 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2022-03-15 18:10:37,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:10:37,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:37,436 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] [2022-03-15 18:10:37,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 18:10:37,436 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 18:10:37,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:37,437 INFO L85 PathProgramCache]: Analyzing trace with hash -961602926, now seen corresponding path program 1 times [2022-03-15 18:10:37,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:37,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295704837] [2022-03-15 18:10:37,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:37,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:10:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:10:37,509 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:10:37,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295704837] [2022-03-15 18:10:37,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295704837] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:10:37,509 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:10:37,509 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 18:10:37,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1283172774] [2022-03-15 18:10:37,509 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:10:37,512 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:10:37,517 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 30 transitions. [2022-03-15 18:10:37,517 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:10:37,534 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:10:37,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 18:10:37,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:10:37,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 18:10:37,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:10:37,535 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-03-15 18:10:37,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:10:37,564 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2022-03-15 18:10:37,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 18:10:37,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 28 [2022-03-15 18:10:37,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:10:37,565 INFO L225 Difference]: With dead ends: 52 [2022-03-15 18:10:37,565 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 18:10:37,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 18:10:37,566 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:10:37,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 27 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:10:37,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 18:10:37,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 18:10:37,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:37,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 18:10:37,568 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2022-03-15 18:10:37,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:10:37,568 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 18:10:37,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-03-15 18:10:37,568 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 18:10:37,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 18:10:37,570 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-03-15 18:10:37,570 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-03-15 18:10:37,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-03-15 18:10:37,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-03-15 18:10:37,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 5 remaining) [2022-03-15 18:10:37,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 18:10:37,576 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:10:37,577 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 18:10:37,577 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 18:10:37,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 06:10:37 BasicIcfg [2022-03-15 18:10:37,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 18:10:37,579 INFO L158 Benchmark]: Toolchain (without parser) took 5168.10ms. Allocated memory was 175.1MB in the beginning and 217.1MB in the end (delta: 41.9MB). Free memory was 121.0MB in the beginning and 118.9MB in the end (delta: 2.1MB). Peak memory consumption was 45.6MB. Max. memory is 8.0GB. [2022-03-15 18:10:37,580 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 175.1MB. Free memory is still 138.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 18:10:37,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.91ms. Allocated memory was 175.1MB in the beginning and 217.1MB in the end (delta: 41.9MB). Free memory was 120.8MB in the beginning and 182.4MB in the end (delta: -61.6MB). Peak memory consumption was 6.6MB. Max. memory is 8.0GB. [2022-03-15 18:10:37,580 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.65ms. Allocated memory is still 217.1MB. Free memory was 182.4MB in the beginning and 180.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 18:10:37,580 INFO L158 Benchmark]: Boogie Preprocessor took 30.72ms. Allocated memory is still 217.1MB. Free memory was 180.3MB in the beginning and 179.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 18:10:37,581 INFO L158 Benchmark]: RCFGBuilder took 349.34ms. Allocated memory is still 217.1MB. Free memory was 179.2MB in the beginning and 164.0MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-03-15 18:10:37,581 INFO L158 Benchmark]: TraceAbstraction took 4325.84ms. Allocated memory is still 217.1MB. Free memory was 163.5MB in the beginning and 118.9MB in the end (delta: 44.6MB). Peak memory consumption was 46.2MB. Max. memory is 8.0GB. [2022-03-15 18:10:37,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 175.1MB. Free memory is still 138.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 403.91ms. Allocated memory was 175.1MB in the beginning and 217.1MB in the end (delta: 41.9MB). Free memory was 120.8MB in the beginning and 182.4MB in the end (delta: -61.6MB). Peak memory consumption was 6.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.65ms. Allocated memory is still 217.1MB. Free memory was 182.4MB in the beginning and 180.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.72ms. Allocated memory is still 217.1MB. Free memory was 180.3MB in the beginning and 179.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 349.34ms. Allocated memory is still 217.1MB. Free memory was 179.2MB in the beginning and 164.0MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4325.84ms. Allocated memory is still 217.1MB. Free memory was 163.5MB in the beginning and 118.9MB in the end (delta: 44.6MB). Peak memory consumption was 46.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 143 PlacesBefore, 48 PlacesAfterwards, 143 TransitionsBefore, 48 TransitionsAfterwards, 4026 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 68 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 0 ChoiceCompositions, 124 TotalNumberOfCompositions, 12759 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4183, positive: 3754, positive conditional: 0, positive unconditional: 3754, negative: 429, negative conditional: 0, negative unconditional: 429, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2111, positive: 2044, positive conditional: 0, positive unconditional: 2044, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4183, positive: 1710, positive conditional: 0, positive unconditional: 1710, negative: 362, negative conditional: 0, negative unconditional: 362, unknown: 2111, unknown conditional: 0, unknown unconditional: 2111] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 104, Positive conditional cache size: 0, Positive unconditional cache size: 104, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39 - 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 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 175 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 156 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 98 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 177 mSDsCounter, 111 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 488 IncrementalHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 111 mSolverCounterUnsat, 49 mSDtfsCounter, 488 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=409occurred in iteration=1, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 31 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 668 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 18:10:37,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...