/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 12:31:24,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 12:31:24,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 12:31:24,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 12:31:24,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 12:31:24,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 12:31:24,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 12:31:24,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 12:31:24,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 12:31:24,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 12:31:24,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 12:31:24,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 12:31:24,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 12:31:24,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 12:31:24,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 12:31:24,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 12:31:24,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 12:31:24,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 12:31:24,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 12:31:24,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 12:31:24,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 12:31:24,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 12:31:24,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 12:31:24,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 12:31:24,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 12:31:24,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 12:31:24,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 12:31:24,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 12:31:24,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 12:31:24,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 12:31:24,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 12:31:24,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 12:31:24,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 12:31:24,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 12:31:24,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 12:31:24,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 12:31:24,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 12:31:24,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 12:31:24,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 12:31:24,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 12:31:24,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 12:31:24,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 12:31:24,871 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 12:31:24,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 12:31:24,872 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 12:31:24,872 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 12:31:24,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 12:31:24,873 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 12:31:24,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 12:31:24,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 12:31:24,873 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 12:31:24,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 12:31:24,874 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 12:31:24,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 12:31:24,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 12:31:24,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 12:31:24,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 12:31:24,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 12:31:24,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 12:31:24,875 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 12:31:24,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 12:31:24,876 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 12:31:24,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 12:31:24,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 12:31:24,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 12:31:24,876 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 12:31:24,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 12:31:24,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 12:31:24,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 12:31:24,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 12:31:24,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 12:31:24,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 12:31:24,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 12:31:24,877 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 12:31:24,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 12:31:24,877 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 12:31:24,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 12:31:25,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 12:31:25,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 12:31:25,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 12:31:25,090 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 12:31:25,095 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 12:31:25,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c [2022-01-18 12:31:25,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/082380a53/87f99cf39ec249528c3ed818d802c1de/FLAGd540aaea9 [2022-01-18 12:31:25,524 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 12:31:25,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c [2022-01-18 12:31:25,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/082380a53/87f99cf39ec249528c3ed818d802c1de/FLAGd540aaea9 [2022-01-18 12:31:25,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/082380a53/87f99cf39ec249528c3ed818d802c1de [2022-01-18 12:31:25,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 12:31:25,925 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 12:31:25,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 12:31:25,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 12:31:25,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 12:31:25,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:31:25" (1/1) ... [2022-01-18 12:31:25,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306eb83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:31:25, skipping insertion in model container [2022-01-18 12:31:25,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:31:25" (1/1) ... [2022-01-18 12:31:25,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 12:31:25,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 12:31:26,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c[2486,2499] [2022-01-18 12:31:26,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 12:31:26,122 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 12:31:26,137 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c[2486,2499] [2022-01-18 12:31:26,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 12:31:26,153 INFO L208 MainTranslator]: Completed translation [2022-01-18 12:31:26,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:31:26 WrapperNode [2022-01-18 12:31:26,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 12:31:26,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 12:31:26,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 12:31:26,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 12:31:26,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:31:26" (1/1) ... [2022-01-18 12:31:26,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:31:26" (1/1) ... [2022-01-18 12:31:26,181 INFO L137 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 104 [2022-01-18 12:31:26,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 12:31:26,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 12:31:26,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 12:31:26,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 12:31:26,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:31:26" (1/1) ... [2022-01-18 12:31:26,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:31:26" (1/1) ... [2022-01-18 12:31:26,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:31:26" (1/1) ... [2022-01-18 12:31:26,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:31:26" (1/1) ... [2022-01-18 12:31:26,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:31:26" (1/1) ... [2022-01-18 12:31:26,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:31:26" (1/1) ... [2022-01-18 12:31:26,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:31:26" (1/1) ... [2022-01-18 12:31:26,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 12:31:26,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 12:31:26,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 12:31:26,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 12:31:26,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:31:26" (1/1) ... [2022-01-18 12:31:26,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 12:31:26,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:31:26,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 12:31:26,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 12:31:26,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 12:31:26,299 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 12:31:26,299 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 12:31:26,299 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 12:31:26,299 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 12:31:26,299 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 12:31:26,300 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 12:31:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 12:31:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 12:31:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 12:31:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 12:31:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 12:31:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-18 12:31:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 12:31:26,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 12:31:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 12:31:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 12:31:26,302 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 12:31:26,419 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 12:31:26,421 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 12:31:26,716 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 12:31:26,756 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 12:31:26,756 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-18 12:31:26,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:31:26 BoogieIcfgContainer [2022-01-18 12:31:26,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 12:31:26,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 12:31:26,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 12:31:26,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 12:31:26,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 12:31:25" (1/3) ... [2022-01-18 12:31:26,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75546d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:31:26, skipping insertion in model container [2022-01-18 12:31:26,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:31:26" (2/3) ... [2022-01-18 12:31:26,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75546d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:31:26, skipping insertion in model container [2022-01-18 12:31:26,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:31:26" (3/3) ... [2022-01-18 12:31:26,764 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-min-le-max.wvr.c [2022-01-18 12:31:26,768 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 12:31:26,768 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 12:31:26,768 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 12:31:26,768 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 12:31:26,819 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,820 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,820 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,820 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,821 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,821 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,822 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,822 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,822 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,822 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,822 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,823 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,823 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,823 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,823 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,823 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,824 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,824 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,824 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,824 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,824 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,824 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,824 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,825 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,825 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,825 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,825 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,826 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,826 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,826 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,826 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,826 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,826 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,827 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,827 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,827 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,827 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,827 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,827 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,828 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,828 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,828 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,828 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,828 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,829 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,829 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,830 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,830 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,830 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,830 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,833 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,833 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,834 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,835 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,835 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,835 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,836 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,836 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,836 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:31:26,839 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-18 12:31:26,885 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 12:31:26,893 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 12:31:26,894 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 12:31:26,912 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 149 places, 149 transitions, 322 flow [2022-01-18 12:31:27,042 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2041 states, 2040 states have (on average 3.394607843137255) internal successors, (6925), 2040 states have internal predecessors, (6925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:27,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 2041 states, 2040 states have (on average 3.394607843137255) internal successors, (6925), 2040 states have internal predecessors, (6925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:27,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-18 12:31:27,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:31:27,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:31:27,080 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:31:27,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:31:27,085 INFO L85 PathProgramCache]: Analyzing trace with hash 134934520, now seen corresponding path program 1 times [2022-01-18 12:31:27,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:31:27,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072551282] [2022-01-18 12:31:27,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:31:27,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:31:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:31:27,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:31:27,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:31:27,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072551282] [2022-01-18 12:31:27,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072551282] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:31:27,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:31:27,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 12:31:27,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542861994] [2022-01-18 12:31:27,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:31:27,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 12:31:27,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:31:27,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 12:31:27,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 12:31:27,345 INFO L87 Difference]: Start difference. First operand has 2041 states, 2040 states have (on average 3.394607843137255) internal successors, (6925), 2040 states have internal predecessors, (6925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:27,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:31:27,420 INFO L93 Difference]: Finished difference Result 2041 states and 6506 transitions. [2022-01-18 12:31:27,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 12:31:27,422 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 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 107 [2022-01-18 12:31:27,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:31:27,463 INFO L225 Difference]: With dead ends: 2041 [2022-01-18 12:31:27,463 INFO L226 Difference]: Without dead ends: 2037 [2022-01-18 12:31:27,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 12:31:27,467 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:31:27,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:31:27,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2022-01-18 12:31:27,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 2037. [2022-01-18 12:31:27,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2037 states, 2036 states have (on average 3.1935166994106092) internal successors, (6502), 2036 states have internal predecessors, (6502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:27,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 6502 transitions. [2022-01-18 12:31:27,619 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 6502 transitions. Word has length 107 [2022-01-18 12:31:27,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:31:27,620 INFO L470 AbstractCegarLoop]: Abstraction has 2037 states and 6502 transitions. [2022-01-18 12:31:27,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:27,621 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 6502 transitions. [2022-01-18 12:31:27,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-18 12:31:27,630 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:31:27,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:31:27,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 12:31:27,631 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:31:27,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:31:27,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1399132343, now seen corresponding path program 1 times [2022-01-18 12:31:27,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:31:27,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526067524] [2022-01-18 12:31:27,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:31:27,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:31:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:31:27,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:31:27,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:31:27,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526067524] [2022-01-18 12:31:27,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526067524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:31:27,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:31:27,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:31:27,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609795176] [2022-01-18 12:31:27,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:31:27,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:31:27,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:31:27,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:31:27,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:31:27,840 INFO L87 Difference]: Start difference. First operand 2037 states and 6502 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:27,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:31:27,969 INFO L93 Difference]: Finished difference Result 2853 states and 9214 transitions. [2022-01-18 12:31:27,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:31:27,970 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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 107 [2022-01-18 12:31:27,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:31:27,988 INFO L225 Difference]: With dead ends: 2853 [2022-01-18 12:31:27,988 INFO L226 Difference]: Without dead ends: 2853 [2022-01-18 12:31:27,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:31:27,993 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 165 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:31:27,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 279 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:31:28,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2022-01-18 12:31:28,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2241. [2022-01-18 12:31:28,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2241 states, 2240 states have (on average 3.205357142857143) internal successors, (7180), 2240 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:28,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2241 states to 2241 states and 7180 transitions. [2022-01-18 12:31:28,082 INFO L78 Accepts]: Start accepts. Automaton has 2241 states and 7180 transitions. Word has length 107 [2022-01-18 12:31:28,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:31:28,084 INFO L470 AbstractCegarLoop]: Abstraction has 2241 states and 7180 transitions. [2022-01-18 12:31:28,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:28,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2241 states and 7180 transitions. [2022-01-18 12:31:28,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-18 12:31:28,096 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:31:28,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:31:28,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 12:31:28,097 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:31:28,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:31:28,098 INFO L85 PathProgramCache]: Analyzing trace with hash -390044877, now seen corresponding path program 1 times [2022-01-18 12:31:28,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:31:28,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929836873] [2022-01-18 12:31:28,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:31:28,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:31:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:31:28,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:31:28,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:31:28,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929836873] [2022-01-18 12:31:28,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929836873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:31:28,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:31:28,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 12:31:28,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636872833] [2022-01-18 12:31:28,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:31:28,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 12:31:28,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:31:28,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 12:31:28,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:31:28,255 INFO L87 Difference]: Start difference. First operand 2241 states and 7180 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:28,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:31:28,396 INFO L93 Difference]: Finished difference Result 2676 states and 8360 transitions. [2022-01-18 12:31:28,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 12:31:28,396 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 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 112 [2022-01-18 12:31:28,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:31:28,409 INFO L225 Difference]: With dead ends: 2676 [2022-01-18 12:31:28,410 INFO L226 Difference]: Without dead ends: 2247 [2022-01-18 12:31:28,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-01-18 12:31:28,416 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 354 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:31:28,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 455 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:31:28,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2022-01-18 12:31:28,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 2242. [2022-01-18 12:31:28,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2242 states, 2241 states have (on average 3.2043730477465417) internal successors, (7181), 2241 states have internal predecessors, (7181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:28,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 7181 transitions. [2022-01-18 12:31:28,514 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 7181 transitions. Word has length 112 [2022-01-18 12:31:28,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:31:28,516 INFO L470 AbstractCegarLoop]: Abstraction has 2242 states and 7181 transitions. [2022-01-18 12:31:28,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:28,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 7181 transitions. [2022-01-18 12:31:28,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-18 12:31:28,524 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:31:28,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:31:28,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 12:31:28,526 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:31:28,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:31:28,527 INFO L85 PathProgramCache]: Analyzing trace with hash 708673487, now seen corresponding path program 1 times [2022-01-18 12:31:28,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:31:28,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688270294] [2022-01-18 12:31:28,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:31:28,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:31:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:31:28,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:31:28,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:31:28,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688270294] [2022-01-18 12:31:28,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688270294] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:31:28,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051377866] [2022-01-18 12:31:28,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:31:28,714 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:31:28,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:31:28,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:31:28,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 12:31:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:31:28,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 12:31:28,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:31:29,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:31:29,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:31:29,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:31:29,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051377866] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 12:31:29,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 12:31:29,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-18 12:31:29,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523511478] [2022-01-18 12:31:29,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:31:29,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 12:31:29,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:31:29,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 12:31:29,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-18 12:31:29,507 INFO L87 Difference]: Start difference. First operand 2242 states and 7181 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:29,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:31:29,613 INFO L93 Difference]: Finished difference Result 2474 states and 7954 transitions. [2022-01-18 12:31:29,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 12:31:29,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 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 119 [2022-01-18 12:31:29,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:31:29,628 INFO L225 Difference]: With dead ends: 2474 [2022-01-18 12:31:29,628 INFO L226 Difference]: Without dead ends: 2474 [2022-01-18 12:31:29,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 230 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-18 12:31:29,629 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 288 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:31:29,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 319 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:31:29,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-01-18 12:31:29,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-01-18 12:31:29,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2473 states have (on average 3.2163364334816014) internal successors, (7954), 2473 states have internal predecessors, (7954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:29,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 7954 transitions. [2022-01-18 12:31:29,693 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 7954 transitions. Word has length 119 [2022-01-18 12:31:29,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:31:29,694 INFO L470 AbstractCegarLoop]: Abstraction has 2474 states and 7954 transitions. [2022-01-18 12:31:29,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:29,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 7954 transitions. [2022-01-18 12:31:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-18 12:31:29,703 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:31:29,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:31:29,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-18 12:31:29,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:31:29,920 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 12:31:29,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:31:29,920 INFO L85 PathProgramCache]: Analyzing trace with hash -127685361, now seen corresponding path program 1 times [2022-01-18 12:31:29,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:31:29,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148703938] [2022-01-18 12:31:29,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:31:29,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:31:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:31:30,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:31:30,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:31:30,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148703938] [2022-01-18 12:31:30,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148703938] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:31:30,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484988401] [2022-01-18 12:31:30,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:31:30,745 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:31:30,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:31:30,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:31:30,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 12:31:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:31:30,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 40 conjunts are in the unsatisfiable core [2022-01-18 12:31:30,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:31:31,192 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 12:31:31,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:31:31,608 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-01-18 12:31:31,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:31:31,802 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-01-18 12:31:31,899 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-18 12:31:31,991 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:31:31,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:31:32,257 WARN L838 $PredicateComparison]: unable to prove that (and (or (<= c_~min~0 c_~max~0) (forall ((v_ArrVal_110 (Array Int Int))) (< c_~max~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_110) c_~A~0.base) c_~A~0.offset)))) (forall ((v_ArrVal_110 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_110) c_~A~0.base) c_~A~0.offset))) (or (<= c_~min~0 .cse0) (not (< c_~max~0 .cse0)))))) is different from false [2022-01-18 12:31:33,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:31:33,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484988401] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:31:33,812 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:31:33,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 22, 15] total 54 [2022-01-18 12:31:33,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153072052] [2022-01-18 12:31:33,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:31:33,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-01-18 12:31:33,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:31:33,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-01-18 12:31:33,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=2447, Unknown=27, NotChecked=102, Total=2862 [2022-01-18 12:31:33,815 INFO L87 Difference]: Start difference. First operand 2474 states and 7954 transitions. Second operand has 54 states, 54 states have (on average 5.5) internal successors, (297), 54 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:40,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:31:40,414 INFO L93 Difference]: Finished difference Result 9575 states and 31630 transitions. [2022-01-18 12:31:40,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 12:31:40,415 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 5.5) internal successors, (297), 54 states have internal predecessors, (297), 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 124 [2022-01-18 12:31:40,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:31:40,415 INFO L225 Difference]: With dead ends: 9575 [2022-01-18 12:31:40,415 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 12:31:40,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 226 SyntacticMatches, 16 SemanticMatches, 106 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2955 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=2145, Invalid=9174, Unknown=27, NotChecked=210, Total=11556 [2022-01-18 12:31:40,418 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 3255 mSDsluCounter, 4162 mSDsCounter, 0 mSdLazyCounter, 2817 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3255 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 3593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 2817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 445 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 12:31:40,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3255 Valid, 3874 Invalid, 3593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 2817 Invalid, 0 Unknown, 445 Unchecked, 1.5s Time] [2022-01-18 12:31:40,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 12:31:40,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 12:31:40,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:40,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 12:31:40,419 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 124 [2022-01-18 12:31:40,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:31:40,419 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 12:31:40,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 5.5) internal successors, (297), 54 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:31:40,420 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 12:31:40,420 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 12:31:40,422 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 12:31:40,422 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-18 12:31:40,422 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-18 12:31:40,422 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-18 12:31:40,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 12:31:40,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:31:40,634 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-01-18 12:31:40,636 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 12:31:40,638 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 12:31:40,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 12:31:40 BasicIcfg [2022-01-18 12:31:40,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 12:31:40,642 INFO L158 Benchmark]: Toolchain (without parser) took 14716.24ms. Allocated memory was 396.4MB in the beginning and 536.9MB in the end (delta: 140.5MB). Free memory was 341.8MB in the beginning and 335.5MB in the end (delta: 6.3MB). Peak memory consumption was 147.8MB. Max. memory is 16.0GB. [2022-01-18 12:31:40,642 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 396.4MB. Free memory is still 359.4MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 12:31:40,642 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.06ms. Allocated memory is still 396.4MB. Free memory was 341.6MB in the beginning and 367.2MB in the end (delta: -25.5MB). Peak memory consumption was 17.2MB. Max. memory is 16.0GB. [2022-01-18 12:31:40,642 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.94ms. Allocated memory is still 396.4MB. Free memory was 367.2MB in the beginning and 365.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 12:31:40,643 INFO L158 Benchmark]: Boogie Preprocessor took 47.21ms. Allocated memory is still 396.4MB. Free memory was 365.8MB in the beginning and 364.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 12:31:40,643 INFO L158 Benchmark]: RCFGBuilder took 527.99ms. Allocated memory is still 396.4MB. Free memory was 364.0MB in the beginning and 345.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-18 12:31:40,643 INFO L158 Benchmark]: TraceAbstraction took 13881.97ms. Allocated memory was 396.4MB in the beginning and 536.9MB in the end (delta: 140.5MB). Free memory was 345.2MB in the beginning and 335.5MB in the end (delta: 9.7MB). Peak memory consumption was 151.5MB. Max. memory is 16.0GB. [2022-01-18 12:31:40,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 396.4MB. Free memory is still 359.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 227.06ms. Allocated memory is still 396.4MB. Free memory was 341.6MB in the beginning and 367.2MB in the end (delta: -25.5MB). Peak memory consumption was 17.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 27.94ms. Allocated memory is still 396.4MB. Free memory was 367.2MB in the beginning and 365.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 47.21ms. Allocated memory is still 396.4MB. Free memory was 365.8MB in the beginning and 364.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 527.99ms. Allocated memory is still 396.4MB. Free memory was 364.0MB in the beginning and 345.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 13881.97ms. Allocated memory was 396.4MB in the beginning and 536.9MB in the end (delta: 140.5MB). Free memory was 345.2MB in the beginning and 335.5MB in the end (delta: 9.7MB). Peak memory consumption was 151.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 98]: 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 7 procedures, 165 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 13.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4062 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4062 mSDsluCounter, 5047 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 445 IncrementalHoareTripleChecker+Unchecked, 4868 mSDsCounter, 333 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3050 IncrementalHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 333 mSolverCounterUnsat, 689 mSDtfsCounter, 3050 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 616 GetRequests, 463 SyntacticMatches, 18 SemanticMatches, 135 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3023 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2474occurred in iteration=4, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 617 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 812 NumberOfCodeBlocks, 812 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1046 ConstructedInterpolants, 18 QuantifiedInterpolants, 5183 SizeOfPredicates, 32 NumberOfNonLiveVariables, 569 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 8/16 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 12:31:40,677 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...