/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-17 23:16:06,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-17 23:16:06,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-17 23:16:06,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-17 23:16:06,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-17 23:16:06,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-17 23:16:06,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-17 23:16:06,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-17 23:16:06,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-17 23:16:06,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-17 23:16:06,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-17 23:16:06,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-17 23:16:06,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-17 23:16:06,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-17 23:16:06,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-17 23:16:06,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-17 23:16:06,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-17 23:16:06,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-17 23:16:06,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-17 23:16:06,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-17 23:16:06,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-17 23:16:06,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-17 23:16:06,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-17 23:16:06,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-17 23:16:06,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-17 23:16:06,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-17 23:16:06,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-17 23:16:06,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-17 23:16:06,633 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 [2022-01-17 23:16:06,649 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-17 23:16:06,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-17 23:16:06,650 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-17 23:16:06,650 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-17 23:16:06,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-17 23:16:06,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-17 23:16:06,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-17 23:16:06,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-17 23:16:06,652 INFO L138 SettingsManager]: * Use SBE=true [2022-01-17 23:16:06,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-17 23:16:06,652 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-17 23:16:06,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-17 23:16:06,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-17 23:16:06,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-17 23:16:06,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-17 23:16:06,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-17 23:16:06,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-17 23:16:06,653 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-17 23:16:06,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-17 23:16:06,653 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-17 23:16:06,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-17 23:16:06,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-17 23:16:06,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-17 23:16:06,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-17 23:16:06,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-17 23:16:06,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:16:06,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-17 23:16:06,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-17 23:16:06,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-17 23:16:06,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-17 23:16:06,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-17 23:16:06,655 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-17 23:16:06,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-17 23:16:06,655 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-17 23:16:06,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-17 23:16:06,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-17 23:16:06,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-17 23:16:06,913 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-17 23:16:06,915 INFO L275 PluginConnector]: CDTParser initialized [2022-01-17 23:16:06,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-17 23:16:06,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66fde2a65/bd9b10594f45413c8be1aa462f33311a/FLAG55b4d8018 [2022-01-17 23:16:07,459 INFO L306 CDTParser]: Found 1 translation units. [2022-01-17 23:16:07,459 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-17 23:16:07,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66fde2a65/bd9b10594f45413c8be1aa462f33311a/FLAG55b4d8018 [2022-01-17 23:16:07,784 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66fde2a65/bd9b10594f45413c8be1aa462f33311a [2022-01-17 23:16:07,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-17 23:16:07,789 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-17 23:16:07,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-17 23:16:07,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-17 23:16:07,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-17 23:16:07,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:16:07" (1/1) ... [2022-01-17 23:16:07,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@223bb894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:07, skipping insertion in model container [2022-01-17 23:16:07,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:16:07" (1/1) ... [2022-01-17 23:16:07,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-17 23:16:07,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-17 23:16:08,024 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/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-01-17 23:16:08,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:16:08,181 INFO L203 MainTranslator]: Completed pre-run [2022-01-17 23:16:08,193 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/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-01-17 23:16:08,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:16:08,242 INFO L208 MainTranslator]: Completed translation [2022-01-17 23:16:08,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:08 WrapperNode [2022-01-17 23:16:08,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-17 23:16:08,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-17 23:16:08,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-17 23:16:08,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-17 23:16:08,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:08" (1/1) ... [2022-01-17 23:16:08,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:08" (1/1) ... [2022-01-17 23:16:08,283 INFO L137 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-01-17 23:16:08,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-17 23:16:08,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-17 23:16:08,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-17 23:16:08,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-17 23:16:08,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:08" (1/1) ... [2022-01-17 23:16:08,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:08" (1/1) ... [2022-01-17 23:16:08,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:08" (1/1) ... [2022-01-17 23:16:08,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:08" (1/1) ... [2022-01-17 23:16:08,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:08" (1/1) ... [2022-01-17 23:16:08,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:08" (1/1) ... [2022-01-17 23:16:08,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:08" (1/1) ... [2022-01-17 23:16:08,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-17 23:16:08,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-17 23:16:08,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-17 23:16:08,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-17 23:16:08,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:08" (1/1) ... [2022-01-17 23:16:08,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:16:08,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:16:08,353 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) [2022-01-17 23:16:08,374 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 [2022-01-17 23:16:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-17 23:16:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-17 23:16:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-17 23:16:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-17 23:16:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-17 23:16:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-17 23:16:08,395 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-17 23:16:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-17 23:16:08,397 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-17 23:16:08,397 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-01-17 23:16:08,397 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-01-17 23:16:08,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-17 23:16:08,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-17 23:16:08,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-17 23:16:08,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-17 23:16:08,399 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-17 23:16:08,550 INFO L234 CfgBuilder]: Building ICFG [2022-01-17 23:16:08,552 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-17 23:16:08,754 INFO L275 CfgBuilder]: Performing block encoding [2022-01-17 23:16:08,760 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-17 23:16:08,760 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-17 23:16:08,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:16:08 BoogieIcfgContainer [2022-01-17 23:16:08,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-17 23:16:08,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-17 23:16:08,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-17 23:16:08,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-17 23:16:08,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.01 11:16:07" (1/3) ... [2022-01-17 23:16:08,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e5b668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:16:08, skipping insertion in model container [2022-01-17 23:16:08,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:16:08" (2/3) ... [2022-01-17 23:16:08,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e5b668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:16:08, skipping insertion in model container [2022-01-17 23:16:08,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:16:08" (3/3) ... [2022-01-17 23:16:08,771 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-17 23:16:08,776 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-17 23:16:08,776 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-17 23:16:08,776 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-17 23:16:08,776 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-17 23:16:08,815 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,815 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,816 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,816 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,820 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,820 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,820 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,820 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,821 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,821 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,822 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,822 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,822 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,823 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,823 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,823 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,825 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,826 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,826 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,826 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,827 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,827 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,827 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,827 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,828 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,828 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,828 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,829 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,829 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,829 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,829 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,829 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,830 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,830 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,831 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,832 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,840 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,840 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,840 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,841 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,843 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,843 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,843 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,843 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,844 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,844 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,844 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,844 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:16:08,845 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-17 23:16:08,891 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-17 23:16:08,907 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 [2022-01-17 23:16:08,908 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-17 23:16:08,922 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 98 places, 90 transitions, 195 flow [2022-01-17 23:16:09,192 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5659 states, 5658 states have (on average 3.4782608695652173) internal successors, (19680), 5658 states have internal predecessors, (19680), 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) [2022-01-17 23:16:09,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 5659 states, 5658 states have (on average 3.4782608695652173) internal successors, (19680), 5658 states have internal predecessors, (19680), 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) [2022-01-17 23:16:09,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-17 23:16:09,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:09,252 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] [2022-01-17 23:16:09,252 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:09,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:09,258 INFO L85 PathProgramCache]: Analyzing trace with hash -36302498, now seen corresponding path program 1 times [2022-01-17 23:16:09,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:09,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555420213] [2022-01-17 23:16:09,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:09,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:09,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:09,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:09,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555420213] [2022-01-17 23:16:09,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555420213] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:09,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:09,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:16:09,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725097332] [2022-01-17 23:16:09,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:09,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:16:09,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:09,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:16:09,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:16:09,753 INFO L87 Difference]: Start difference. First operand has 5659 states, 5658 states have (on average 3.4782608695652173) internal successors, (19680), 5658 states have internal predecessors, (19680), 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) [2022-01-17 23:16:10,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:10,175 INFO L93 Difference]: Finished difference Result 9301 states and 31319 transitions. [2022-01-17 23:16:10,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-17 23:16:10,178 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 [2022-01-17 23:16:10,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:10,320 INFO L225 Difference]: With dead ends: 9301 [2022-01-17 23:16:10,320 INFO L226 Difference]: Without dead ends: 5857 [2022-01-17 23:16:10,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:16:10,327 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 179 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:10,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 596 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:16:10,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5857 states. [2022-01-17 23:16:10,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5857 to 5017. [2022-01-17 23:16:10,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5017 states, 5016 states have (on average 3.333532695374801) internal successors, (16721), 5016 states have internal predecessors, (16721), 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) [2022-01-17 23:16:10,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5017 states to 5017 states and 16721 transitions. [2022-01-17 23:16:10,597 INFO L78 Accepts]: Start accepts. Automaton has 5017 states and 16721 transitions. Word has length 54 [2022-01-17 23:16:10,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:10,598 INFO L470 AbstractCegarLoop]: Abstraction has 5017 states and 16721 transitions. [2022-01-17 23:16:10,599 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) [2022-01-17 23:16:10,599 INFO L276 IsEmpty]: Start isEmpty. Operand 5017 states and 16721 transitions. [2022-01-17 23:16:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-17 23:16:10,612 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:10,612 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] [2022-01-17 23:16:10,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-17 23:16:10,613 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:10,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:10,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1112046493, now seen corresponding path program 1 times [2022-01-17 23:16:10,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:10,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736725515] [2022-01-17 23:16:10,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:10,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:10,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:10,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:10,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736725515] [2022-01-17 23:16:10,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736725515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:10,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:10,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:16:10,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660099107] [2022-01-17 23:16:10,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:10,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:16:10,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:10,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:16:10,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:16:10,847 INFO L87 Difference]: Start difference. First operand 5017 states and 16721 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2022-01-17 23:16:11,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:11,102 INFO L93 Difference]: Finished difference Result 7087 states and 23342 transitions. [2022-01-17 23:16:11,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-17 23:16:11,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2022-01-17 23:16:11,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:11,137 INFO L225 Difference]: With dead ends: 7087 [2022-01-17 23:16:11,137 INFO L226 Difference]: Without dead ends: 5437 [2022-01-17 23:16:11,138 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 [2022-01-17 23:16:11,139 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 176 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:11,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 607 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:16:11,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-17 23:16:11,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 4597. [2022-01-17 23:16:11,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4597 states, 4596 states have (on average 3.316579634464752) internal successors, (15243), 4596 states have internal predecessors, (15243), 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) [2022-01-17 23:16:11,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4597 states to 4597 states and 15243 transitions. [2022-01-17 23:16:11,336 INFO L78 Accepts]: Start accepts. Automaton has 4597 states and 15243 transitions. Word has length 56 [2022-01-17 23:16:11,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:11,337 INFO L470 AbstractCegarLoop]: Abstraction has 4597 states and 15243 transitions. [2022-01-17 23:16:11,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2022-01-17 23:16:11,337 INFO L276 IsEmpty]: Start isEmpty. Operand 4597 states and 15243 transitions. [2022-01-17 23:16:11,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-17 23:16:11,351 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:11,351 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] [2022-01-17 23:16:11,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-17 23:16:11,351 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:11,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:11,352 INFO L85 PathProgramCache]: Analyzing trace with hash -61879812, now seen corresponding path program 1 times [2022-01-17 23:16:11,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:11,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172165556] [2022-01-17 23:16:11,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:11,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:11,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:11,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:11,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172165556] [2022-01-17 23:16:11,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172165556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:11,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:11,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:16:11,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886086908] [2022-01-17 23:16:11,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:11,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:16:11,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:11,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:16:11,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:16:11,499 INFO L87 Difference]: Start difference. First operand 4597 states and 15243 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) [2022-01-17 23:16:11,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:11,677 INFO L93 Difference]: Finished difference Result 6557 states and 21572 transitions. [2022-01-17 23:16:11,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-17 23:16:11,678 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 [2022-01-17 23:16:11,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:11,709 INFO L225 Difference]: With dead ends: 6557 [2022-01-17 23:16:11,709 INFO L226 Difference]: Without dead ends: 3467 [2022-01-17 23:16:11,709 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 [2022-01-17 23:16:11,710 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 166 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:11,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 444 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:11,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3467 states. [2022-01-17 23:16:11,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3467 to 3467. [2022-01-17 23:16:11,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3467 states, 3466 states have (on average 3.2143681477207156) internal successors, (11141), 3466 states have internal predecessors, (11141), 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) [2022-01-17 23:16:11,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3467 states to 3467 states and 11141 transitions. [2022-01-17 23:16:11,863 INFO L78 Accepts]: Start accepts. Automaton has 3467 states and 11141 transitions. Word has length 58 [2022-01-17 23:16:11,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:11,863 INFO L470 AbstractCegarLoop]: Abstraction has 3467 states and 11141 transitions. [2022-01-17 23:16:11,864 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) [2022-01-17 23:16:11,864 INFO L276 IsEmpty]: Start isEmpty. Operand 3467 states and 11141 transitions. [2022-01-17 23:16:11,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-17 23:16:11,874 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:11,874 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] [2022-01-17 23:16:11,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-17 23:16:11,874 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:11,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:11,875 INFO L85 PathProgramCache]: Analyzing trace with hash -2140819429, now seen corresponding path program 1 times [2022-01-17 23:16:11,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:11,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459504235] [2022-01-17 23:16:11,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:11,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:12,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:12,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:12,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459504235] [2022-01-17 23:16:12,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459504235] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:12,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:12,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:16:12,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967118832] [2022-01-17 23:16:12,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:12,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:16:12,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:12,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:16:12,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:16:12,056 INFO L87 Difference]: Start difference. First operand 3467 states and 11141 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 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) [2022-01-17 23:16:12,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:12,187 INFO L93 Difference]: Finished difference Result 4408 states and 14026 transitions. [2022-01-17 23:16:12,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:16:12,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 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 [2022-01-17 23:16:12,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:12,204 INFO L225 Difference]: With dead ends: 4408 [2022-01-17 23:16:12,205 INFO L226 Difference]: Without dead ends: 3208 [2022-01-17 23:16:12,205 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 [2022-01-17 23:16:12,209 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 133 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:12,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 345 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:12,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2022-01-17 23:16:12,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3208. [2022-01-17 23:16:12,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 3.1705643903960086) internal successors, (10168), 3207 states have internal predecessors, (10168), 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) [2022-01-17 23:16:12,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 10168 transitions. [2022-01-17 23:16:12,307 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 10168 transitions. Word has length 60 [2022-01-17 23:16:12,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:12,310 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 10168 transitions. [2022-01-17 23:16:12,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 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) [2022-01-17 23:16:12,310 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 10168 transitions. [2022-01-17 23:16:12,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-17 23:16:12,319 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:12,320 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] [2022-01-17 23:16:12,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-17 23:16:12,320 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:12,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:12,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1296354669, now seen corresponding path program 1 times [2022-01-17 23:16:12,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:12,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368463704] [2022-01-17 23:16:12,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:12,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:12,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:12,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:12,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368463704] [2022-01-17 23:16:12,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368463704] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:12,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:12,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:16:12,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186033803] [2022-01-17 23:16:12,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:12,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:16:12,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:12,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:16:12,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:16:12,419 INFO L87 Difference]: Start difference. First operand 3208 states and 10168 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) [2022-01-17 23:16:12,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:12,549 INFO L93 Difference]: Finished difference Result 3445 states and 10659 transitions. [2022-01-17 23:16:12,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-17 23:16:12,550 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 [2022-01-17 23:16:12,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:12,559 INFO L225 Difference]: With dead ends: 3445 [2022-01-17 23:16:12,560 INFO L226 Difference]: Without dead ends: 2410 [2022-01-17 23:16:12,560 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 [2022-01-17 23:16:12,562 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 215 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:12,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 404 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:12,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2410 states. [2022-01-17 23:16:12,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2410 to 2410. [2022-01-17 23:16:12,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2410 states, 2409 states have (on average 3.041095890410959) internal successors, (7326), 2409 states have internal predecessors, (7326), 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) [2022-01-17 23:16:12,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2410 states to 2410 states and 7326 transitions. [2022-01-17 23:16:12,660 INFO L78 Accepts]: Start accepts. Automaton has 2410 states and 7326 transitions. Word has length 61 [2022-01-17 23:16:12,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:12,660 INFO L470 AbstractCegarLoop]: Abstraction has 2410 states and 7326 transitions. [2022-01-17 23:16:12,660 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) [2022-01-17 23:16:12,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2410 states and 7326 transitions. [2022-01-17 23:16:12,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-17 23:16:12,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:12,666 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] [2022-01-17 23:16:12,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-17 23:16:12,667 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:12,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:12,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1413529468, now seen corresponding path program 1 times [2022-01-17 23:16:12,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:12,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955629174] [2022-01-17 23:16:12,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:12,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:12,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:12,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:12,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955629174] [2022-01-17 23:16:12,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955629174] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:12,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:12,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:16:12,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561528694] [2022-01-17 23:16:12,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:12,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:16:12,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:12,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:16:12,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:16:12,804 INFO L87 Difference]: Start difference. First operand 2410 states and 7326 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 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) [2022-01-17 23:16:12,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:12,927 INFO L93 Difference]: Finished difference Result 2050 states and 6072 transitions. [2022-01-17 23:16:12,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-17 23:16:12,927 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 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 [2022-01-17 23:16:12,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:12,931 INFO L225 Difference]: With dead ends: 2050 [2022-01-17 23:16:12,931 INFO L226 Difference]: Without dead ends: 1077 [2022-01-17 23:16:12,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:16:12,932 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 230 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:12,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 377 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:12,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2022-01-17 23:16:12,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1029. [2022-01-17 23:16:12,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 1028 states have (on average 2.8784046692607004) internal successors, (2959), 1028 states have internal predecessors, (2959), 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) [2022-01-17 23:16:12,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 2959 transitions. [2022-01-17 23:16:12,956 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 2959 transitions. Word has length 63 [2022-01-17 23:16:12,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:12,956 INFO L470 AbstractCegarLoop]: Abstraction has 1029 states and 2959 transitions. [2022-01-17 23:16:12,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 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) [2022-01-17 23:16:12,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 2959 transitions. [2022-01-17 23:16:12,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-17 23:16:12,959 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:16:12,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:16:12,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-17 23:16:12,959 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:16:12,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:16:12,960 INFO L85 PathProgramCache]: Analyzing trace with hash 578796977, now seen corresponding path program 1 times [2022-01-17 23:16:12,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:16:12,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318258785] [2022-01-17 23:16:12,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:16:12,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:16:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:16:13,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:16:13,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:16:13,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318258785] [2022-01-17 23:16:13,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318258785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:16:13,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:16:13,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:16:13,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636547586] [2022-01-17 23:16:13,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:16:13,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:16:13,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:16:13,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:16:13,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:16:13,051 INFO L87 Difference]: Start difference. First operand 1029 states and 2959 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2022-01-17 23:16:13,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:16:13,131 INFO L93 Difference]: Finished difference Result 1023 states and 2949 transitions. [2022-01-17 23:16:13,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:16:13,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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 65 [2022-01-17 23:16:13,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:16:13,132 INFO L225 Difference]: With dead ends: 1023 [2022-01-17 23:16:13,132 INFO L226 Difference]: Without dead ends: 0 [2022-01-17 23:16:13,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:16:13,132 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 96 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:16:13,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 401 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:16:13,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-17 23:16:13,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-17 23:16:13,133 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) [2022-01-17 23:16:13,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-17 23:16:13,134 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2022-01-17 23:16:13,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:16:13,134 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-17 23:16:13,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2022-01-17 23:16:13,134 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-17 23:16:13,134 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-17 23:16:13,136 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-17 23:16:13,137 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-17 23:16:13,137 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-17 23:16:13,137 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-17 23:16:13,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-17 23:16:13,140 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:16:13,141 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-17 23:16:13,141 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-17 23:16:13,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.01 11:16:13 BasicIcfg [2022-01-17 23:16:13,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-17 23:16:13,144 INFO L158 Benchmark]: Toolchain (without parser) took 5354.73ms. Allocated memory was 367.0MB in the beginning and 891.3MB in the end (delta: 524.3MB). Free memory was 311.9MB in the beginning and 682.9MB in the end (delta: -371.0MB). Peak memory consumption was 154.5MB. Max. memory is 16.0GB. [2022-01-17 23:16:13,144 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 367.0MB. Free memory is still 329.2MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 23:16:13,144 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.86ms. Allocated memory was 367.0MB in the beginning and 482.3MB in the end (delta: 115.3MB). Free memory was 311.6MB in the beginning and 447.5MB in the end (delta: -135.9MB). Peak memory consumption was 13.4MB. Max. memory is 16.0GB. [2022-01-17 23:16:13,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.64ms. Allocated memory is still 482.3MB. Free memory was 447.5MB in the beginning and 445.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 23:16:13,144 INFO L158 Benchmark]: Boogie Preprocessor took 18.98ms. Allocated memory is still 482.3MB. Free memory was 445.4MB in the beginning and 443.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 23:16:13,145 INFO L158 Benchmark]: RCFGBuilder took 458.44ms. Allocated memory is still 482.3MB. Free memory was 443.3MB in the beginning and 430.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-17 23:16:13,145 INFO L158 Benchmark]: TraceAbstraction took 4379.93ms. Allocated memory was 482.3MB in the beginning and 891.3MB in the end (delta: 408.9MB). Free memory was 429.7MB in the beginning and 682.9MB in the end (delta: -253.2MB). Peak memory consumption was 156.8MB. Max. memory is 16.0GB. [2022-01-17 23:16:13,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 367.0MB. Free memory is still 329.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 452.86ms. Allocated memory was 367.0MB in the beginning and 482.3MB in the end (delta: 115.3MB). Free memory was 311.6MB in the beginning and 447.5MB in the end (delta: -135.9MB). Peak memory consumption was 13.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 39.64ms. Allocated memory is still 482.3MB. Free memory was 447.5MB in the beginning and 445.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 18.98ms. Allocated memory is still 482.3MB. Free memory was 445.4MB in the beginning and 443.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 458.44ms. Allocated memory is still 482.3MB. Free memory was 443.3MB in the beginning and 430.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 4379.93ms. Allocated memory was 482.3MB in the beginning and 891.3MB in the end (delta: 408.9MB). Free memory was 429.7MB in the beginning and 682.9MB in the end (delta: -253.2MB). Peak memory consumption was 156.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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, 112 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1195 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1195 mSDsluCounter, 3174 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2550 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 417 IncrementalHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 700 mSDtfsCounter, 417 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5659occurred in iteration=0, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 1728 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 417 NumberOfCodeBlocks, 417 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 410 ConstructedInterpolants, 0 QuantifiedInterpolants, 1690 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2022-01-17 23:16:13,185 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...