/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_41-traces-ex-7_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 18:11:03,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 18:11:03,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 18:11:03,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 18:11:03,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 18:11:03,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 18:11:03,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 18:11:03,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 18:11:03,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 18:11:03,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 18:11:03,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 18:11:03,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 18:11:03,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 18:11:03,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 18:11:03,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 18:11:03,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 18:11:03,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 18:11:03,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 18:11:03,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 18:11:03,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 18:11:03,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 18:11:03,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 18:11:03,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 18:11:03,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 18:11:03,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 18:11:03,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 18:11:03,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 18:11:03,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 18:11:03,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 18:11:03,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 18:11:03,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 18:11:03,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 18:11:03,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 18:11:03,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 18:11:03,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 18:11:03,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 18:11:03,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 18:11:03,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 18:11:03,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 18:11:03,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 18:11:03,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 18:11:03,749 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 18:11:03,763 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 18:11:03,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 18:11:03,763 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 18:11:03,764 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 18:11:03,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 18:11:03,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 18:11:03,764 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 18:11:03,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 18:11:03,764 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 18:11:03,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 18:11:03,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 18:11:03,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 18:11:03,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 18:11:03,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 18:11:03,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 18:11:03,765 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 18:11:03,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 18:11:03,765 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 18:11:03,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 18:11:03,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 18:11:03,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 18:11:03,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 18:11:03,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 18:11:03,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:11:03,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 18:11:03,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 18:11:03,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 18:11:03,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 18:11:03,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 18:11:03,766 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 18:11:03,766 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 18:11:03,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 18:11:03,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 18:11:03,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 18:11:03,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 18:11:03,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 18:11:03,974 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 18:11:03,975 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 18:11:03,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-03-15 18:11:04,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24ba57f4/11dfd4adde994399a20284efeecbbc89/FLAG641ecb94e [2022-03-15 18:11:04,349 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 18:11:04,350 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-03-15 18:11:04,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24ba57f4/11dfd4adde994399a20284efeecbbc89/FLAG641ecb94e [2022-03-15 18:11:04,754 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24ba57f4/11dfd4adde994399a20284efeecbbc89 [2022-03-15 18:11:04,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 18:11:04,757 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 18:11:04,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 18:11:04,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 18:11:04,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 18:11:04,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:11:04" (1/1) ... [2022-03-15 18:11:04,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d6cb41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:11:04, skipping insertion in model container [2022-03-15 18:11:04,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:11:04" (1/1) ... [2022-03-15 18:11:04,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 18:11:04,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 18:11:04,998 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_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2022-03-15 18:11:05,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:11:05,094 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 18:11:05,102 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_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2022-03-15 18:11:05,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:11:05,150 INFO L208 MainTranslator]: Completed translation [2022-03-15 18:11:05,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:11:05 WrapperNode [2022-03-15 18:11:05,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 18:11:05,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 18:11:05,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 18:11:05,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 18:11:05,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:11:05" (1/1) ... [2022-03-15 18:11:05,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:11:05" (1/1) ... [2022-03-15 18:11:05,182 INFO L137 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-03-15 18:11:05,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 18:11:05,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 18:11:05,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 18:11:05,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 18:11:05,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:11:05" (1/1) ... [2022-03-15 18:11:05,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:11:05" (1/1) ... [2022-03-15 18:11:05,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:11:05" (1/1) ... [2022-03-15 18:11:05,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:11:05" (1/1) ... [2022-03-15 18:11:05,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:11:05" (1/1) ... [2022-03-15 18:11:05,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:11:05" (1/1) ... [2022-03-15 18:11:05,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:11:05" (1/1) ... [2022-03-15 18:11:05,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 18:11:05,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 18:11:05,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 18:11:05,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 18:11:05,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:11:05" (1/1) ... [2022-03-15 18:11:05,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:11:05,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:11:05,220 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 18:11:05,236 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 18:11:05,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 18:11:05,256 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-15 18:11:05,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 18:11:05,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 18:11:05,257 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-03-15 18:11:05,257 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-03-15 18:11:05,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 18:11:05,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 18:11:05,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 18:11:05,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 18:11:05,259 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 18:11:05,382 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 18:11:05,384 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 18:11:05,526 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 18:11:05,530 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 18:11:05,530 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 18:11:05,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:11:05 BoogieIcfgContainer [2022-03-15 18:11:05,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 18:11:05,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 18:11:05,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 18:11:05,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 18:11:05,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 06:11:04" (1/3) ... [2022-03-15 18:11:05,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398f817e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:11:05, skipping insertion in model container [2022-03-15 18:11:05,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:11:05" (2/3) ... [2022-03-15 18:11:05,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398f817e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:11:05, skipping insertion in model container [2022-03-15 18:11:05,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:11:05" (3/3) ... [2022-03-15 18:11:05,537 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-03-15 18:11:05,541 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 18:11:05,541 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 18:11:05,541 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 18:11:05,541 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 18:11:05,567 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,567 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,567 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,567 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,568 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,568 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,568 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,568 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,568 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,569 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,570 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,570 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,570 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,570 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,571 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,571 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,572 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,572 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,572 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,573 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,576 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,577 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,577 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,577 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,577 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,577 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:11:05,580 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 18:11:05,614 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 18:11:05,626 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 18:11:05,626 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 18:11:05,637 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 18:11:05,644 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 66 transitions, 137 flow [2022-03-15 18:11:05,646 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 66 transitions, 137 flow [2022-03-15 18:11:05,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 137 flow [2022-03-15 18:11:05,682 INFO L129 PetriNetUnfolder]: 1/65 cut-off events. [2022-03-15 18:11:05,682 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-03-15 18:11:05,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 65 events. 1/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2022-03-15 18:11:05,688 INFO L116 LiptonReduction]: Number of co-enabled transitions 460 [2022-03-15 18:11:07,678 INFO L131 LiptonReduction]: Checked pairs total: 1098 [2022-03-15 18:11:07,678 INFO L133 LiptonReduction]: Total number of compositions: 62 [2022-03-15 18:11:07,683 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 14 transitions, 33 flow [2022-03-15 18:11:07,692 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 32 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 31 states have internal predecessors, (51), 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 18:11:07,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 31 states have internal predecessors, (51), 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 18:11:07,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-03-15 18:11:07,697 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:11:07,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-03-15 18:11:07,697 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 18:11:07,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:11:07,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1548172269, now seen corresponding path program 1 times [2022-03-15 18:11:07,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:11:07,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003749105] [2022-03-15 18:11:07,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:11:07,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:11:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:11:07,850 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 18:11:07,850 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:11:07,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003749105] [2022-03-15 18:11:07,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003749105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:11:07,851 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:11:07,851 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 18:11:07,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1195569493] [2022-03-15 18:11:07,852 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:11:07,855 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:11:07,863 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2022-03-15 18:11:07,863 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:11:07,865 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:11:07,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 18:11:07,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:11:07,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 18:11:07,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:11:07,884 INFO L87 Difference]: Start difference. First operand has 32 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 31 states have internal predecessors, (51), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 18:11:07,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:11:07,913 INFO L93 Difference]: Finished difference Result 29 states and 45 transitions. [2022-03-15 18:11:07,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:11:07,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-03-15 18:11:07,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:11:07,918 INFO L225 Difference]: With dead ends: 29 [2022-03-15 18:11:07,919 INFO L226 Difference]: Without dead ends: 29 [2022-03-15 18:11:07,919 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 18:11:07,922 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:11:07,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:11:07,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-03-15 18:11:07,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-03-15 18:11:07,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 28 states have internal predecessors, (45), 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 18:11:07,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 45 transitions. [2022-03-15 18:11:07,949 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 45 transitions. Word has length 6 [2022-03-15 18:11:07,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:11:07,949 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 45 transitions. [2022-03-15 18:11:07,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 18:11:07,949 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2022-03-15 18:11:07,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-03-15 18:11:07,950 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:11:07,950 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:11:07,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 18:11:07,951 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 18:11:07,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:11:07,959 INFO L85 PathProgramCache]: Analyzing trace with hash 2112196315, now seen corresponding path program 1 times [2022-03-15 18:11:07,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:11:07,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573346683] [2022-03-15 18:11:07,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:11:07,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:11:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:11:08,063 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 18:11:08,063 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:11:08,063 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573346683] [2022-03-15 18:11:08,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573346683] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:11:08,063 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:11:08,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 18:11:08,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1198605000] [2022-03-15 18:11:08,063 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:11:08,064 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:11:08,066 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2022-03-15 18:11:08,066 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:11:08,076 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:11:08,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 18:11:08,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:11:08,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 18:11:08,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 18:11:08,077 INFO L87 Difference]: Start difference. First operand 29 states and 45 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 18:11:08,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:11:08,101 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-03-15 18:11:08,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 18:11:08,101 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 9 [2022-03-15 18:11:08,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:11:08,101 INFO L225 Difference]: With dead ends: 21 [2022-03-15 18:11:08,101 INFO L226 Difference]: Without dead ends: 21 [2022-03-15 18:11:08,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 18:11:08,103 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:11:08,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:11:08,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-03-15 18:11:08,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-03-15 18:11:08,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 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 18:11:08,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-03-15 18:11:08,106 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 9 [2022-03-15 18:11:08,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:11:08,106 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-03-15 18:11:08,106 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 18:11:08,106 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-03-15 18:11:08,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-03-15 18:11:08,106 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:11:08,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:11:08,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 18:11:08,106 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 18:11:08,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:11:08,107 INFO L85 PathProgramCache]: Analyzing trace with hash 2052761875, now seen corresponding path program 2 times [2022-03-15 18:11:08,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:11:08,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858852128] [2022-03-15 18:11:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:11:08,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:11:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:11:08,201 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 18:11:08,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:11:08,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858852128] [2022-03-15 18:11:08,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858852128] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:11:08,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:11:08,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 18:11:08,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1475049848] [2022-03-15 18:11:08,202 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:11:08,202 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:11:08,204 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2022-03-15 18:11:08,204 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:11:08,205 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:11:08,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 18:11:08,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:11:08,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 18:11:08,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:11:08,206 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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 18:11:08,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:11:08,239 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2022-03-15 18:11:08,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 18:11:08,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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 9 [2022-03-15 18:11:08,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:11:08,240 INFO L225 Difference]: With dead ends: 16 [2022-03-15 18:11:08,240 INFO L226 Difference]: Without dead ends: 12 [2022-03-15 18:11:08,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 18:11:08,240 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:11:08,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:11:08,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-03-15 18:11:08,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-03-15 18:11:08,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 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 18:11:08,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2022-03-15 18:11:08,242 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2022-03-15 18:11:08,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:11:08,242 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2022-03-15 18:11:08,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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 18:11:08,243 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2022-03-15 18:11:08,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 18:11:08,243 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:11:08,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:11:08,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 18:11:08,243 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 18:11:08,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:11:08,244 INFO L85 PathProgramCache]: Analyzing trace with hash 973638846, now seen corresponding path program 1 times [2022-03-15 18:11:08,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:11:08,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226303099] [2022-03-15 18:11:08,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:11:08,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:11:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 18:11:08,271 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 18:11:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 18:11:08,296 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 18:11:08,296 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 18:11:08,296 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-03-15 18:11:08,297 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-15 18:11:08,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 18:11:08,304 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-03-15 18:11:08,307 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 18:11:08,307 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 18:11:08,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 06:11:08 BasicIcfg [2022-03-15 18:11:08,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 18:11:08,334 INFO L158 Benchmark]: Toolchain (without parser) took 3577.73ms. Allocated memory was 161.5MB in the beginning and 194.0MB in the end (delta: 32.5MB). Free memory was 109.1MB in the beginning and 158.6MB in the end (delta: -49.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 18:11:08,335 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 161.5MB. Free memory was 126.9MB in the beginning and 126.8MB in the end (delta: 74.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 18:11:08,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.65ms. Allocated memory was 161.5MB in the beginning and 194.0MB in the end (delta: 32.5MB). Free memory was 108.8MB in the beginning and 162.4MB in the end (delta: -53.6MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. [2022-03-15 18:11:08,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.54ms. Allocated memory is still 194.0MB. Free memory was 162.4MB in the beginning and 160.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 18:11:08,335 INFO L158 Benchmark]: Boogie Preprocessor took 13.18ms. Allocated memory is still 194.0MB. Free memory was 160.3MB in the beginning and 159.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 18:11:08,335 INFO L158 Benchmark]: RCFGBuilder took 334.84ms. Allocated memory is still 194.0MB. Free memory was 159.3MB in the beginning and 147.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-15 18:11:08,336 INFO L158 Benchmark]: TraceAbstraction took 2801.64ms. Allocated memory is still 194.0MB. Free memory was 146.7MB in the beginning and 158.6MB in the end (delta: -11.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 18:11:08,337 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 161.5MB. Free memory was 126.9MB in the beginning and 126.8MB in the end (delta: 74.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 393.65ms. Allocated memory was 161.5MB in the beginning and 194.0MB in the end (delta: 32.5MB). Free memory was 108.8MB in the beginning and 162.4MB in the end (delta: -53.6MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.54ms. Allocated memory is still 194.0MB. Free memory was 162.4MB in the beginning and 160.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.18ms. Allocated memory is still 194.0MB. Free memory was 160.3MB in the beginning and 159.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 334.84ms. Allocated memory is still 194.0MB. Free memory was 159.3MB in the beginning and 147.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2801.64ms. Allocated memory is still 194.0MB. Free memory was 146.7MB in the beginning and 158.6MB in the end (delta: -11.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 69 PlacesBefore, 17 PlacesAfterwards, 66 TransitionsBefore, 14 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 0 ChoiceCompositions, 62 TotalNumberOfCompositions, 1098 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 551, positive: 449, positive conditional: 0, positive unconditional: 449, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 277, positive: 254, positive conditional: 0, positive unconditional: 254, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 551, positive: 195, positive conditional: 0, positive unconditional: 195, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 277, unknown conditional: 0, unknown unconditional: 277] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 g = 17 VAL [A={3:0}, arg={0:0}, arg={0:0}, D={4:0}, g=17] [L690] 1 return ((void *)0); [L698] CALL 0 __VERIFIER_assert(g == 0) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, \result={0:0}, A={3:0}, arg={0:0}, arg={0:0}, cond=0, D={4:0}, g=17] - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 78 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 2 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-03-15 18:11:08,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...