/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-28 12:16:37,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-28 12:16:37,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-28 12:16:37,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-28 12:16:37,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-28 12:16:37,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-28 12:16:37,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-28 12:16:37,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-28 12:16:37,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-28 12:16:37,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-28 12:16:37,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-28 12:16:37,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-28 12:16:37,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-28 12:16:37,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-28 12:16:37,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-28 12:16:37,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-28 12:16:37,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-28 12:16:37,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-28 12:16:37,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-28 12:16:37,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-28 12:16:37,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-28 12:16:37,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-28 12:16:37,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-28 12:16:37,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-28 12:16:37,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-28 12:16:37,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-28 12:16:37,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-28 12:16:37,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-28 12:16:37,727 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.epf [2022-01-28 12:16:37,745 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-28 12:16:37,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-28 12:16:37,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-28 12:16:37,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-28 12:16:37,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-28 12:16:37,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-28 12:16:37,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-28 12:16:37,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-28 12:16:37,747 INFO L138 SettingsManager]: * Use SBE=true [2022-01-28 12:16:37,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-28 12:16:37,748 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-28 12:16:37,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-28 12:16:37,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-28 12:16:37,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-28 12:16:37,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-28 12:16:37,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-28 12:16:37,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-28 12:16:37,749 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-28 12:16:37,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-28 12:16:37,749 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-28 12:16:37,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-28 12:16:37,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-28 12:16:37,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-28 12:16:37,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-28 12:16:37,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-28 12:16:37,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 12:16:37,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-28 12:16:37,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-28 12:16:37,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-28 12:16:37,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-28 12:16:37,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-28 12:16:37,751 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-28 12:16:37,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-28 12:16:37,752 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-28 12:16:37,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-28 12:16:38,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-28 12:16:38,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-28 12:16:38,003 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-28 12:16:38,004 INFO L275 PluginConnector]: CDTParser initialized [2022-01-28 12:16:38,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.i [2022-01-28 12:16:38,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a9f142a9/41a9c2c9daad4a138ff1ed5a77ff3ce6/FLAG8e0d11f2d [2022-01-28 12:16:38,524 INFO L306 CDTParser]: Found 1 translation units. [2022-01-28 12:16:38,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.i [2022-01-28 12:16:38,546 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a9f142a9/41a9c2c9daad4a138ff1ed5a77ff3ce6/FLAG8e0d11f2d [2022-01-28 12:16:38,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a9f142a9/41a9c2c9daad4a138ff1ed5a77ff3ce6 [2022-01-28 12:16:38,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-28 12:16:38,884 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-28 12:16:38,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-28 12:16:38,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-28 12:16:38,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-28 12:16:38,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:16:38" (1/1) ... [2022-01-28 12:16:38,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfd8f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:38, skipping insertion in model container [2022-01-28 12:16:38,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:16:38" (1/1) ... [2022-01-28 12:16:38,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-28 12:16:38,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-28 12:16:39,151 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.i[945,958] [2022-01-28 12:16:39,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 12:16:39,315 INFO L203 MainTranslator]: Completed pre-run [2022-01-28 12:16:39,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.i[945,958] [2022-01-28 12:16:39,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 12:16:39,435 INFO L208 MainTranslator]: Completed translation [2022-01-28 12:16:39,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:39 WrapperNode [2022-01-28 12:16:39,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-28 12:16:39,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-28 12:16:39,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-28 12:16:39,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-28 12:16:39,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:39" (1/1) ... [2022-01-28 12:16:39,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:39" (1/1) ... [2022-01-28 12:16:39,500 INFO L137 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-01-28 12:16:39,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-28 12:16:39,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-28 12:16:39,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-28 12:16:39,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-28 12:16:39,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:39" (1/1) ... [2022-01-28 12:16:39,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:39" (1/1) ... [2022-01-28 12:16:39,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:39" (1/1) ... [2022-01-28 12:16:39,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:39" (1/1) ... [2022-01-28 12:16:39,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:39" (1/1) ... [2022-01-28 12:16:39,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:39" (1/1) ... [2022-01-28 12:16:39,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:39" (1/1) ... [2022-01-28 12:16:39,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-28 12:16:39,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-28 12:16:39,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-28 12:16:39,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-28 12:16:39,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:39" (1/1) ... [2022-01-28 12:16:39,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 12:16:39,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:16:39,585 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) [2022-01-28 12:16:39,612 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 [2022-01-28 12:16:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-28 12:16:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-28 12:16:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-28 12:16:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-28 12:16:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-28 12:16:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-28 12:16:39,629 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-28 12:16:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-28 12:16:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-28 12:16:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-01-28 12:16:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-01-28 12:16:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-28 12:16:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-28 12:16:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-28 12:16:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-28 12:16:39,632 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-28 12:16:39,769 INFO L234 CfgBuilder]: Building ICFG [2022-01-28 12:16:39,770 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-28 12:16:40,006 INFO L275 CfgBuilder]: Performing block encoding [2022-01-28 12:16:40,012 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-28 12:16:40,013 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-28 12:16:40,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:16:40 BoogieIcfgContainer [2022-01-28 12:16:40,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-28 12:16:40,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-28 12:16:40,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-28 12:16:40,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-28 12:16:40,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 12:16:38" (1/3) ... [2022-01-28 12:16:40,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@381fda4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:16:40, skipping insertion in model container [2022-01-28 12:16:40,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:39" (2/3) ... [2022-01-28 12:16:40,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@381fda4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:16:40, skipping insertion in model container [2022-01-28 12:16:40,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:16:40" (3/3) ... [2022-01-28 12:16:40,026 INFO L111 eAbstractionObserver]: Analyzing ICFG safe004_tso.i [2022-01-28 12:16:40,031 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-28 12:16:40,032 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-28 12:16:40,032 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-28 12:16:40,032 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-28 12:16:40,076 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,076 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,077 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,077 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,077 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,077 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,077 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,078 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,078 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,078 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,079 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,079 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,080 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,080 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,080 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,080 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,080 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,081 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,081 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,081 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,082 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,082 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,082 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,082 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,083 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,083 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,083 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,083 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,083 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,083 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,083 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,084 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,084 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,085 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,085 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,085 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,088 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,089 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,089 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,089 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,092 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,093 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,093 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,093 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,094 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,094 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,094 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,095 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:40,095 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-28 12:16:40,135 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-28 12:16:40,148 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 [2022-01-28 12:16:40,148 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-28 12:16:40,159 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 91 transitions, 197 flow [2022-01-28 12:16:40,478 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6590 states, 6589 states have (on average 3.5052359993929274) internal successors, (23096), 6589 states have internal predecessors, (23096), 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) [2022-01-28 12:16:40,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 6590 states, 6589 states have (on average 3.5052359993929274) internal successors, (23096), 6589 states have internal predecessors, (23096), 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) [2022-01-28 12:16:40,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-28 12:16:40,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:40,546 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] [2022-01-28 12:16:40,547 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:40,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:40,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1258848663, now seen corresponding path program 1 times [2022-01-28 12:16:40,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:40,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616720644] [2022-01-28 12:16:40,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:40,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:41,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:41,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:41,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616720644] [2022-01-28 12:16:41,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616720644] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:41,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:41,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 12:16:41,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701609831] [2022-01-28 12:16:41,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:41,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 12:16:41,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:41,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 12:16:41,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-28 12:16:41,122 INFO L87 Difference]: Start difference. First operand has 6590 states, 6589 states have (on average 3.5052359993929274) internal successors, (23096), 6589 states have internal predecessors, (23096), 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 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2022-01-28 12:16:41,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:41,557 INFO L93 Difference]: Finished difference Result 8939 states and 30759 transitions. [2022-01-28 12:16:41,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 12:16:41,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2022-01-28 12:16:41,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:41,614 INFO L225 Difference]: With dead ends: 8939 [2022-01-28 12:16:41,616 INFO L226 Difference]: Without dead ends: 4566 [2022-01-28 12:16:41,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-28 12:16:41,621 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 226 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:16:41,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 531 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:16:41,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4566 states. [2022-01-28 12:16:41,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4566 to 4146. [2022-01-28 12:16:41,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4146 states, 4145 states have (on average 3.233534378769602) internal successors, (13403), 4145 states have internal predecessors, (13403), 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) [2022-01-28 12:16:41,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4146 states to 4146 states and 13403 transitions. [2022-01-28 12:16:41,900 INFO L78 Accepts]: Start accepts. Automaton has 4146 states and 13403 transitions. Word has length 54 [2022-01-28 12:16:41,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:41,903 INFO L470 AbstractCegarLoop]: Abstraction has 4146 states and 13403 transitions. [2022-01-28 12:16:41,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2022-01-28 12:16:41,904 INFO L276 IsEmpty]: Start isEmpty. Operand 4146 states and 13403 transitions. [2022-01-28 12:16:41,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-28 12:16:41,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:41,920 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] [2022-01-28 12:16:41,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-28 12:16:41,921 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:41,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:41,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1053773669, now seen corresponding path program 1 times [2022-01-28 12:16:41,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:41,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971751559] [2022-01-28 12:16:41,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:41,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:42,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:42,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:42,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971751559] [2022-01-28 12:16:42,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971751559] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:42,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:42,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 12:16:42,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000026194] [2022-01-28 12:16:42,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:42,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 12:16:42,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:42,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 12:16:42,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-28 12:16:42,218 INFO L87 Difference]: Start difference. First operand 4146 states and 13403 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2022-01-28 12:16:42,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:42,434 INFO L93 Difference]: Finished difference Result 5155 states and 16706 transitions. [2022-01-28 12:16:42,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 12:16:42,435 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 58 [2022-01-28 12:16:42,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:42,464 INFO L225 Difference]: With dead ends: 5155 [2022-01-28 12:16:42,464 INFO L226 Difference]: Without dead ends: 4160 [2022-01-28 12:16:42,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-28 12:16:42,466 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 188 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:16:42,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 508 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:16:42,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4160 states. [2022-01-28 12:16:42,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4160 to 3696. [2022-01-28 12:16:42,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3696 states, 3695 states have (on average 3.19702300405954) internal successors, (11813), 3695 states have internal predecessors, (11813), 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) [2022-01-28 12:16:42,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3696 states to 3696 states and 11813 transitions. [2022-01-28 12:16:42,618 INFO L78 Accepts]: Start accepts. Automaton has 3696 states and 11813 transitions. Word has length 58 [2022-01-28 12:16:42,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:42,618 INFO L470 AbstractCegarLoop]: Abstraction has 3696 states and 11813 transitions. [2022-01-28 12:16:42,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2022-01-28 12:16:42,619 INFO L276 IsEmpty]: Start isEmpty. Operand 3696 states and 11813 transitions. [2022-01-28 12:16:42,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-28 12:16:42,628 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:42,628 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] [2022-01-28 12:16:42,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-28 12:16:42,628 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:42,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:42,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1684957471, now seen corresponding path program 1 times [2022-01-28 12:16:42,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:42,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409243273] [2022-01-28 12:16:42,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:42,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:42,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:42,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:42,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409243273] [2022-01-28 12:16:42,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409243273] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:42,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:42,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 12:16:42,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793430421] [2022-01-28 12:16:42,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:42,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 12:16:42,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:42,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 12:16:42,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-28 12:16:42,757 INFO L87 Difference]: Start difference. First operand 3696 states and 11813 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2022-01-28 12:16:42,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:42,974 INFO L93 Difference]: Finished difference Result 5879 states and 18658 transitions. [2022-01-28 12:16:42,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 12:16:42,974 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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 58 [2022-01-28 12:16:42,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:42,998 INFO L225 Difference]: With dead ends: 5879 [2022-01-28 12:16:42,999 INFO L226 Difference]: Without dead ends: 3254 [2022-01-28 12:16:43,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-01-28 12:16:43,006 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 265 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:16:43,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 497 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:16:43,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2022-01-28 12:16:43,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 2946. [2022-01-28 12:16:43,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2945 states have (on average 3.0740237691001697) internal successors, (9053), 2945 states have internal predecessors, (9053), 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) [2022-01-28 12:16:43,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 9053 transitions. [2022-01-28 12:16:43,127 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 9053 transitions. Word has length 58 [2022-01-28 12:16:43,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:43,128 INFO L470 AbstractCegarLoop]: Abstraction has 2946 states and 9053 transitions. [2022-01-28 12:16:43,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2022-01-28 12:16:43,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 9053 transitions. [2022-01-28 12:16:43,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-28 12:16:43,136 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:43,136 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] [2022-01-28 12:16:43,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-28 12:16:43,137 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:43,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:43,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1107932126, now seen corresponding path program 1 times [2022-01-28 12:16:43,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:43,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825772862] [2022-01-28 12:16:43,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:43,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:43,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:43,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:43,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825772862] [2022-01-28 12:16:43,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825772862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:43,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:43,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 12:16:43,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29444929] [2022-01-28 12:16:43,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:43,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 12:16:43,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:43,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 12:16:43,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-28 12:16:43,320 INFO L87 Difference]: Start difference. First operand 2946 states and 9053 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2022-01-28 12:16:43,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:43,468 INFO L93 Difference]: Finished difference Result 3620 states and 11200 transitions. [2022-01-28 12:16:43,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 12:16:43,468 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2022-01-28 12:16:43,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:43,502 INFO L225 Difference]: With dead ends: 3620 [2022-01-28 12:16:43,503 INFO L226 Difference]: Without dead ends: 2905 [2022-01-28 12:16:43,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-01-28 12:16:43,504 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 157 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:16:43,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 437 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:16:43,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2022-01-28 12:16:43,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 2681. [2022-01-28 12:16:43,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2680 states have (on average 3.062686567164179) internal successors, (8208), 2680 states have internal predecessors, (8208), 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) [2022-01-28 12:16:43,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 8208 transitions. [2022-01-28 12:16:43,595 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 8208 transitions. Word has length 60 [2022-01-28 12:16:43,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:43,595 INFO L470 AbstractCegarLoop]: Abstraction has 2681 states and 8208 transitions. [2022-01-28 12:16:43,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2022-01-28 12:16:43,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 8208 transitions. [2022-01-28 12:16:43,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-28 12:16:43,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:43,603 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] [2022-01-28 12:16:43,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-28 12:16:43,604 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:43,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:43,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1855465848, now seen corresponding path program 1 times [2022-01-28 12:16:43,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:43,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90342506] [2022-01-28 12:16:43,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:43,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:43,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:43,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:43,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90342506] [2022-01-28 12:16:43,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90342506] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:43,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:43,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 12:16:43,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968003482] [2022-01-28 12:16:43,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:43,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 12:16:43,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:43,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 12:16:43,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-28 12:16:43,753 INFO L87 Difference]: Start difference. First operand 2681 states and 8208 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2022-01-28 12:16:43,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:43,901 INFO L93 Difference]: Finished difference Result 3041 states and 9306 transitions. [2022-01-28 12:16:43,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 12:16:43,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2022-01-28 12:16:43,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:43,913 INFO L225 Difference]: With dead ends: 3041 [2022-01-28 12:16:43,914 INFO L226 Difference]: Without dead ends: 1536 [2022-01-28 12:16:43,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-01-28 12:16:43,915 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 132 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:16:43,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 663 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:16:43,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2022-01-28 12:16:43,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1536. [2022-01-28 12:16:43,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1536 states, 1535 states have (on average 3.0201954397394135) internal successors, (4636), 1535 states have internal predecessors, (4636), 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) [2022-01-28 12:16:43,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 4636 transitions. [2022-01-28 12:16:43,957 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 4636 transitions. Word has length 61 [2022-01-28 12:16:43,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:43,957 INFO L470 AbstractCegarLoop]: Abstraction has 1536 states and 4636 transitions. [2022-01-28 12:16:43,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2022-01-28 12:16:43,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 4636 transitions. [2022-01-28 12:16:43,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-28 12:16:43,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:43,961 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] [2022-01-28 12:16:43,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-28 12:16:43,962 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:43,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:43,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1495222820, now seen corresponding path program 1 times [2022-01-28 12:16:43,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:43,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454198373] [2022-01-28 12:16:43,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:43,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:44,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:44,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:44,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454198373] [2022-01-28 12:16:44,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454198373] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:44,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:44,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 12:16:44,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001003590] [2022-01-28 12:16:44,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:44,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 12:16:44,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:44,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 12:16:44,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-28 12:16:44,083 INFO L87 Difference]: Start difference. First operand 1536 states and 4636 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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) [2022-01-28 12:16:44,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:44,170 INFO L93 Difference]: Finished difference Result 1774 states and 5298 transitions. [2022-01-28 12:16:44,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 12:16:44,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 62 [2022-01-28 12:16:44,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:44,175 INFO L225 Difference]: With dead ends: 1774 [2022-01-28 12:16:44,176 INFO L226 Difference]: Without dead ends: 1354 [2022-01-28 12:16:44,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:16:44,179 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 106 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:16:44,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 325 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:16:44,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2022-01-28 12:16:44,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1354. [2022-01-28 12:16:44,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1353 states have (on average 2.9793052475979307) internal successors, (4031), 1353 states have internal predecessors, (4031), 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) [2022-01-28 12:16:44,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 4031 transitions. [2022-01-28 12:16:44,218 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 4031 transitions. Word has length 62 [2022-01-28 12:16:44,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:44,219 INFO L470 AbstractCegarLoop]: Abstraction has 1354 states and 4031 transitions. [2022-01-28 12:16:44,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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) [2022-01-28 12:16:44,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 4031 transitions. [2022-01-28 12:16:44,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-28 12:16:44,223 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:44,223 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] [2022-01-28 12:16:44,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-28 12:16:44,223 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:44,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:44,225 INFO L85 PathProgramCache]: Analyzing trace with hash 869716769, now seen corresponding path program 1 times [2022-01-28 12:16:44,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:44,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987123976] [2022-01-28 12:16:44,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:44,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:44,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:44,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:44,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987123976] [2022-01-28 12:16:44,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987123976] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:44,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:44,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 12:16:44,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660622167] [2022-01-28 12:16:44,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:44,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 12:16:44,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:44,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 12:16:44,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-28 12:16:44,334 INFO L87 Difference]: Start difference. First operand 1354 states and 4031 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2022-01-28 12:16:44,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:44,423 INFO L93 Difference]: Finished difference Result 1207 states and 3471 transitions. [2022-01-28 12:16:44,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 12:16:44,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-28 12:16:44,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:44,426 INFO L225 Difference]: With dead ends: 1207 [2022-01-28 12:16:44,427 INFO L226 Difference]: Without dead ends: 892 [2022-01-28 12:16:44,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-28 12:16:44,428 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 148 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:16:44,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 353 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:16:44,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2022-01-28 12:16:44,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 892. [2022-01-28 12:16:44,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 891 states have (on average 2.814814814814815) internal successors, (2508), 891 states have internal predecessors, (2508), 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) [2022-01-28 12:16:44,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 2508 transitions. [2022-01-28 12:16:44,446 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 2508 transitions. Word has length 63 [2022-01-28 12:16:44,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:44,446 INFO L470 AbstractCegarLoop]: Abstraction has 892 states and 2508 transitions. [2022-01-28 12:16:44,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2022-01-28 12:16:44,446 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 2508 transitions. [2022-01-28 12:16:44,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-28 12:16:44,448 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:44,449 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] [2022-01-28 12:16:44,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-28 12:16:44,449 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:44,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:44,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1402612284, now seen corresponding path program 1 times [2022-01-28 12:16:44,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:44,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867495328] [2022-01-28 12:16:44,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:44,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:44,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:44,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:44,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867495328] [2022-01-28 12:16:44,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867495328] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:44,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:44,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 12:16:44,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284083022] [2022-01-28 12:16:44,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:44,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 12:16:44,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:44,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 12:16:44,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-28 12:16:44,529 INFO L87 Difference]: Start difference. First operand 892 states and 2508 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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) [2022-01-28 12:16:44,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:44,593 INFO L93 Difference]: Finished difference Result 523 states and 1395 transitions. [2022-01-28 12:16:44,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-28 12:16:44,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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 64 [2022-01-28 12:16:44,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:44,593 INFO L225 Difference]: With dead ends: 523 [2022-01-28 12:16:44,594 INFO L226 Difference]: Without dead ends: 0 [2022-01-28 12:16:44,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-01-28 12:16:44,594 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 147 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:16:44,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 235 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:16:44,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-28 12:16:44,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-28 12:16:44,596 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) [2022-01-28 12:16:44,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-28 12:16:44,596 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2022-01-28 12:16:44,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:44,596 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-28 12:16:44,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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) [2022-01-28 12:16:44,596 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-28 12:16:44,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-28 12:16:44,599 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-28 12:16:44,599 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-28 12:16:44,599 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-28 12:16:44,599 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-28 12:16:44,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-28 12:16:44,602 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:16:44,604 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-28 12:16:44,604 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-28 12:16:44,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 12:16:44 BasicIcfg [2022-01-28 12:16:44,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-28 12:16:44,607 INFO L158 Benchmark]: Toolchain (without parser) took 5722.77ms. Allocated memory was 175.1MB in the beginning and 355.5MB in the end (delta: 180.4MB). Free memory was 117.7MB in the beginning and 172.8MB in the end (delta: -55.1MB). Peak memory consumption was 125.6MB. Max. memory is 8.0GB. [2022-01-28 12:16:44,607 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 175.1MB. Free memory was 135.4MB in the beginning and 135.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-28 12:16:44,607 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.96ms. Allocated memory was 175.1MB in the beginning and 264.2MB in the end (delta: 89.1MB). Free memory was 117.5MB in the beginning and 228.0MB in the end (delta: -110.6MB). Peak memory consumption was 16.0MB. Max. memory is 8.0GB. [2022-01-28 12:16:44,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.01ms. Allocated memory is still 264.2MB. Free memory was 228.0MB in the beginning and 225.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-28 12:16:44,608 INFO L158 Benchmark]: Boogie Preprocessor took 34.98ms. Allocated memory is still 264.2MB. Free memory was 225.9MB in the beginning and 224.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-28 12:16:44,608 INFO L158 Benchmark]: RCFGBuilder took 478.64ms. Allocated memory is still 264.2MB. Free memory was 224.4MB in the beginning and 211.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-28 12:16:44,608 INFO L158 Benchmark]: TraceAbstraction took 4589.20ms. Allocated memory was 264.2MB in the beginning and 355.5MB in the end (delta: 91.2MB). Free memory was 211.3MB in the beginning and 172.8MB in the end (delta: 38.5MB). Peak memory consumption was 130.2MB. Max. memory is 8.0GB. [2022-01-28 12:16:44,609 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 175.1MB. Free memory was 135.4MB in the beginning and 135.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 550.96ms. Allocated memory was 175.1MB in the beginning and 264.2MB in the end (delta: 89.1MB). Free memory was 117.5MB in the beginning and 228.0MB in the end (delta: -110.6MB). Peak memory consumption was 16.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.01ms. Allocated memory is still 264.2MB. Free memory was 228.0MB in the beginning and 225.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.98ms. Allocated memory is still 264.2MB. Free memory was 225.9MB in the beginning and 224.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 478.64ms. Allocated memory is still 264.2MB. Free memory was 224.4MB in the beginning and 211.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4589.20ms. Allocated memory was 264.2MB in the beginning and 355.5MB in the end (delta: 91.2MB). Free memory was 211.3MB in the beginning and 172.8MB in the end (delta: 38.5MB). Peak memory consumption was 130.2MB. Max. memory is 8.0GB. * 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: 18]: 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, 114 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1369 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1369 mSDsluCounter, 3549 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2821 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 419 IncrementalHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 813 mSDtfsCounter, 419 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6590occurred in iteration=0, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 1416 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 480 NumberOfCodeBlocks, 480 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 472 ConstructedInterpolants, 0 QuantifiedInterpolants, 2254 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-28 12:16:44,645 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...