/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 16:22:55,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 16:22:55,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 16:22:55,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 16:22:55,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 16:22:55,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 16:22:55,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 16:22:55,713 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 [2022-03-03 16:22:55,733 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 16:22:55,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 16:22:55,733 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 16:22:55,733 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 16:22:55,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 16:22:55,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 16:22:55,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 16:22:55,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 16:22:55,735 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 16:22:55,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 16:22:55,735 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 16:22:55,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 16:22:55,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 16:22:55,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 16:22:55,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 16:22:55,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 16:22:55,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 16:22:55,736 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 16:22:55,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 16:22:55,736 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 16:22:55,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 16:22:55,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 16:22:55,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 16:22:55,736 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 16:22:55,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 16:22:55,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:22:55,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 16:22:55,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 16:22:55,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 16:22:55,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 16:22:55,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 16:22:55,737 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 16:22:55,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 16:22:55,737 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 16:22:55,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 16:22:55,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 16:22:55,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 16:22:55,943 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 16:22:55,943 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 16:22:55,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-03-03 16:22:55,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e90bc93f6/128a7ee642e149f48eba7821d95ade5d/FLAG37a93e906 [2022-03-03 16:22:56,306 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 16:22:56,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-03-03 16:22:56,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e90bc93f6/128a7ee642e149f48eba7821d95ade5d/FLAG37a93e906 [2022-03-03 16:22:56,717 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e90bc93f6/128a7ee642e149f48eba7821d95ade5d [2022-03-03 16:22:56,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 16:22:56,720 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 16:22:56,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 16:22:56,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 16:22:56,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 16:22:56,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:22:56" (1/1) ... [2022-03-03 16:22:56,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b2f6223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:22:56, skipping insertion in model container [2022-03-03 16:22:56,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:22:56" (1/1) ... [2022-03-03 16:22:56,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 16:22:56,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 16:22:56,942 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/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-03-03 16:22:57,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:22:57,055 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 16:22:57,063 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/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-03-03 16:22:57,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:22:57,106 INFO L208 MainTranslator]: Completed translation [2022-03-03 16:22:57,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:22:57 WrapperNode [2022-03-03 16:22:57,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 16:22:57,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 16:22:57,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 16:22:57,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 16:22:57,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:22:57" (1/1) ... [2022-03-03 16:22:57,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:22:57" (1/1) ... [2022-03-03 16:22:57,133 INFO L137 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2022-03-03 16:22:57,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 16:22:57,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 16:22:57,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 16:22:57,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 16:22:57,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:22:57" (1/1) ... [2022-03-03 16:22:57,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:22:57" (1/1) ... [2022-03-03 16:22:57,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:22:57" (1/1) ... [2022-03-03 16:22:57,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:22:57" (1/1) ... [2022-03-03 16:22:57,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:22:57" (1/1) ... [2022-03-03 16:22:57,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:22:57" (1/1) ... [2022-03-03 16:22:57,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:22:57" (1/1) ... [2022-03-03 16:22:57,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 16:22:57,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 16:22:57,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 16:22:57,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 16:22:57,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:22:57" (1/1) ... [2022-03-03 16:22:57,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:22:57,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:22:57,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-03 16:22:57,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-03 16:22:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 16:22:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-03 16:22:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 16:22:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 16:22:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 16:22:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-03-03 16:22:57,228 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-03-03 16:22:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-03-03 16:22:57,228 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-03-03 16:22:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-03-03 16:22:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-03-03 16:22:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-03-03 16:22:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-03-03 16:22:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 16:22:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-03 16:22:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 16:22:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 16:22:57,230 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 16:22:57,319 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 16:22:57,320 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 16:22:57,439 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 16:22:57,443 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 16:22:57,444 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-03 16:22:57,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:22:57 BoogieIcfgContainer [2022-03-03 16:22:57,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 16:22:57,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 16:22:57,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 16:22:57,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 16:22:57,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:22:56" (1/3) ... [2022-03-03 16:22:57,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6a4b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:22:57, skipping insertion in model container [2022-03-03 16:22:57,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:22:57" (2/3) ... [2022-03-03 16:22:57,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6a4b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:22:57, skipping insertion in model container [2022-03-03 16:22:57,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:22:57" (3/3) ... [2022-03-03 16:22:57,456 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-03-03 16:22:57,459 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 16:22:57,459 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 16:22:57,459 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 16:22:57,459 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 16:22:57,486 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,486 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,486 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,486 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,487 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,487 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,487 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,487 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,488 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,488 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,488 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,488 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,488 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,488 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,488 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,488 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,489 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,489 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,489 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,489 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,489 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,489 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,490 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,490 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,490 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,490 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,490 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,490 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,490 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,491 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,491 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,491 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,491 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,491 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,491 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,491 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,492 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,492 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,492 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,492 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,492 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,492 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,492 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,492 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,493 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,493 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,493 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,493 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,496 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,496 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,496 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,496 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,498 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,498 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,498 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,498 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,499 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,499 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,499 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,499 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,500 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,500 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,500 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,500 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:22:57,500 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-03 16:22:57,529 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 16:22:57,534 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, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 16:22:57,534 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-03 16:22:57,544 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 116 places, 105 transitions, 230 flow [2022-03-03 16:22:59,010 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 34177 states, 34176 states have (on average 4.3103639981273405) internal successors, (147311), 34176 states have internal predecessors, (147311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:22:59,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 34177 states, 34176 states have (on average 4.3103639981273405) internal successors, (147311), 34176 states have internal predecessors, (147311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:22:59,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-03 16:22:59,413 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:22:59,413 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] [2022-03-03 16:22:59,414 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 16:22:59,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:22:59,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1881502097, now seen corresponding path program 1 times [2022-03-03 16:22:59,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:22:59,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735905328] [2022-03-03 16:22:59,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:22:59,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:22:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:22:59,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:22:59,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:22:59,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735905328] [2022-03-03 16:22:59,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735905328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:22:59,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:22:59,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:22:59,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780548143] [2022-03-03 16:22:59,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:22:59,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:22:59,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:22:59,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:22:59,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:22:59,927 INFO L87 Difference]: Start difference. First operand has 34177 states, 34176 states have (on average 4.3103639981273405) internal successors, (147311), 34176 states have internal predecessors, (147311), 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 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 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) [2022-03-03 16:23:00,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:23:00,684 INFO L93 Difference]: Finished difference Result 39469 states and 166967 transitions. [2022-03-03 16:23:00,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 16:23:00,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 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 [2022-03-03 16:23:00,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:23:00,979 INFO L225 Difference]: With dead ends: 39469 [2022-03-03 16:23:00,979 INFO L226 Difference]: Without dead ends: 28885 [2022-03-03 16:23:00,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:23:00,983 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 145 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:23:00,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 563 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:23:01,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28885 states. [2022-03-03 16:23:02,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28885 to 28885. [2022-03-03 16:23:02,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28885 states, 28884 states have (on average 4.218910123251627) internal successors, (121859), 28884 states have internal predecessors, (121859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:03,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28885 states to 28885 states and 121859 transitions. [2022-03-03 16:23:03,143 INFO L78 Accepts]: Start accepts. Automaton has 28885 states and 121859 transitions. Word has length 61 [2022-03-03 16:23:03,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:23:03,148 INFO L470 AbstractCegarLoop]: Abstraction has 28885 states and 121859 transitions. [2022-03-03 16:23:03,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 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) [2022-03-03 16:23:03,150 INFO L276 IsEmpty]: Start isEmpty. Operand 28885 states and 121859 transitions. [2022-03-03 16:23:03,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-03 16:23:03,270 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:23:03,270 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] [2022-03-03 16:23:03,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 16:23:03,271 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 16:23:03,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:23:03,272 INFO L85 PathProgramCache]: Analyzing trace with hash -300703474, now seen corresponding path program 1 times [2022-03-03 16:23:03,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:23:03,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816152304] [2022-03-03 16:23:03,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:23:03,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:23:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:23:03,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:23:03,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:23:03,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816152304] [2022-03-03 16:23:03,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816152304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:23:03,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:23:03,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:23:03,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277040343] [2022-03-03 16:23:03,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:23:03,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:23:03,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:23:03,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:23:03,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:23:03,367 INFO L87 Difference]: Start difference. First operand 28885 states and 121859 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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) [2022-03-03 16:23:03,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:23:03,841 INFO L93 Difference]: Finished difference Result 33925 states and 142181 transitions. [2022-03-03 16:23:03,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 16:23:03,842 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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 [2022-03-03 16:23:03,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:23:03,987 INFO L225 Difference]: With dead ends: 33925 [2022-03-03 16:23:03,987 INFO L226 Difference]: Without dead ends: 27625 [2022-03-03 16:23:03,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:23:03,988 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 127 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:23:03,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 528 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:23:04,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27625 states. [2022-03-03 16:23:04,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27625 to 27625. [2022-03-03 16:23:05,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27625 states, 27624 states have (on average 4.200007240081089) internal successors, (116021), 27624 states have internal predecessors, (116021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:05,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27625 states to 27625 states and 116021 transitions. [2022-03-03 16:23:05,143 INFO L78 Accepts]: Start accepts. Automaton has 27625 states and 116021 transitions. Word has length 63 [2022-03-03 16:23:05,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:23:05,143 INFO L470 AbstractCegarLoop]: Abstraction has 27625 states and 116021 transitions. [2022-03-03 16:23:05,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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) [2022-03-03 16:23:05,144 INFO L276 IsEmpty]: Start isEmpty. Operand 27625 states and 116021 transitions. [2022-03-03 16:23:05,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-03 16:23:05,192 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:23:05,192 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] [2022-03-03 16:23:05,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 16:23:05,192 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 16:23:05,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:23:05,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1166229359, now seen corresponding path program 1 times [2022-03-03 16:23:05,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:23:05,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715158398] [2022-03-03 16:23:05,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:23:05,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:23:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:23:05,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:23:05,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:23:05,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715158398] [2022-03-03 16:23:05,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715158398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:23:05,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:23:05,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:23:05,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207022989] [2022-03-03 16:23:05,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:23:05,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:23:05,300 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:23:05,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:23:05,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:23:05,300 INFO L87 Difference]: Start difference. First operand 27625 states and 116021 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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) [2022-03-03 16:23:05,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:23:05,796 INFO L93 Difference]: Finished difference Result 30145 states and 125867 transitions. [2022-03-03 16:23:05,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 16:23:05,796 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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 [2022-03-03 16:23:05,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:23:05,903 INFO L225 Difference]: With dead ends: 30145 [2022-03-03 16:23:05,904 INFO L226 Difference]: Without dead ends: 25945 [2022-03-03 16:23:05,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:23:05,910 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 116 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:23:05,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 511 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:23:06,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25945 states. [2022-03-03 16:23:06,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25945 to 25945. [2022-03-03 16:23:06,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25945 states, 25944 states have (on average 4.1881359851988895) internal successors, (108657), 25944 states have internal predecessors, (108657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:06,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25945 states to 25945 states and 108657 transitions. [2022-03-03 16:23:06,971 INFO L78 Accepts]: Start accepts. Automaton has 25945 states and 108657 transitions. Word has length 65 [2022-03-03 16:23:06,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:23:06,972 INFO L470 AbstractCegarLoop]: Abstraction has 25945 states and 108657 transitions. [2022-03-03 16:23:06,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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) [2022-03-03 16:23:06,972 INFO L276 IsEmpty]: Start isEmpty. Operand 25945 states and 108657 transitions. [2022-03-03 16:23:07,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-03 16:23:07,022 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:23:07,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:23:07,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 16:23:07,022 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 16:23:07,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:23:07,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1097323382, now seen corresponding path program 1 times [2022-03-03 16:23:07,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:23:07,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386202170] [2022-03-03 16:23:07,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:23:07,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:23:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:23:07,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:23:07,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:23:07,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386202170] [2022-03-03 16:23:07,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386202170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:23:07,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:23:07,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:23:07,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365306368] [2022-03-03 16:23:07,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:23:07,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:23:07,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:23:07,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:23:07,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:23:07,162 INFO L87 Difference]: Start difference. First operand 25945 states and 108657 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:07,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:23:07,934 INFO L93 Difference]: Finished difference Result 52937 states and 219209 transitions. [2022-03-03 16:23:07,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 16:23:07,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 66 [2022-03-03 16:23:07,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:23:08,466 INFO L225 Difference]: With dead ends: 52937 [2022-03-03 16:23:08,466 INFO L226 Difference]: Without dead ends: 41497 [2022-03-03 16:23:08,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:23:08,475 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 159 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:23:08,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 565 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:23:08,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41497 states. [2022-03-03 16:23:09,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41497 to 30241. [2022-03-03 16:23:09,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30241 states, 30240 states have (on average 4.121792328042328) internal successors, (124643), 30240 states have internal predecessors, (124643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:09,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30241 states to 30241 states and 124643 transitions. [2022-03-03 16:23:09,796 INFO L78 Accepts]: Start accepts. Automaton has 30241 states and 124643 transitions. Word has length 66 [2022-03-03 16:23:09,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:23:09,799 INFO L470 AbstractCegarLoop]: Abstraction has 30241 states and 124643 transitions. [2022-03-03 16:23:09,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:09,800 INFO L276 IsEmpty]: Start isEmpty. Operand 30241 states and 124643 transitions. [2022-03-03 16:23:10,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-03 16:23:10,066 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:23:10,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:23:10,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 16:23:10,074 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 16:23:10,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:23:10,077 INFO L85 PathProgramCache]: Analyzing trace with hash 783324234, now seen corresponding path program 2 times [2022-03-03 16:23:10,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:23:10,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874500698] [2022-03-03 16:23:10,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:23:10,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:23:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:23:10,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:23:10,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:23:10,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874500698] [2022-03-03 16:23:10,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874500698] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:23:10,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:23:10,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 16:23:10,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843589444] [2022-03-03 16:23:10,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:23:10,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 16:23:10,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:23:10,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 16:23:10,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:23:10,238 INFO L87 Difference]: Start difference. First operand 30241 states and 124643 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:10,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:23:10,817 INFO L93 Difference]: Finished difference Result 53465 states and 217653 transitions. [2022-03-03 16:23:10,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-03 16:23:10,818 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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 66 [2022-03-03 16:23:10,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:23:11,299 INFO L225 Difference]: With dead ends: 53465 [2022-03-03 16:23:11,299 INFO L226 Difference]: Without dead ends: 38505 [2022-03-03 16:23:11,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-03-03 16:23:11,300 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 196 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:23:11,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 842 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:23:11,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38505 states. [2022-03-03 16:23:12,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38505 to 25865. [2022-03-03 16:23:12,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25865 states, 25864 states have (on average 4.067932261057841) internal successors, (105213), 25864 states have internal predecessors, (105213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:12,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25865 states to 25865 states and 105213 transitions. [2022-03-03 16:23:12,381 INFO L78 Accepts]: Start accepts. Automaton has 25865 states and 105213 transitions. Word has length 66 [2022-03-03 16:23:12,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:23:12,382 INFO L470 AbstractCegarLoop]: Abstraction has 25865 states and 105213 transitions. [2022-03-03 16:23:12,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:12,382 INFO L276 IsEmpty]: Start isEmpty. Operand 25865 states and 105213 transitions. [2022-03-03 16:23:12,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-03 16:23:12,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:23:12,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:23:12,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 16:23:12,472 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 16:23:12,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:23:12,473 INFO L85 PathProgramCache]: Analyzing trace with hash -696097874, now seen corresponding path program 1 times [2022-03-03 16:23:12,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:23:12,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700648499] [2022-03-03 16:23:12,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:23:12,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:23:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:23:12,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:23:12,637 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:23:12,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700648499] [2022-03-03 16:23:12,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700648499] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:23:12,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:23:12,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 16:23:12,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111128385] [2022-03-03 16:23:12,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:23:12,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 16:23:12,638 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:23:12,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 16:23:12,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:23:12,639 INFO L87 Difference]: Start difference. First operand 25865 states and 105213 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:13,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:23:13,291 INFO L93 Difference]: Finished difference Result 49145 states and 198369 transitions. [2022-03-03 16:23:13,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 16:23:13,292 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2022-03-03 16:23:13,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:23:13,416 INFO L225 Difference]: With dead ends: 49145 [2022-03-03 16:23:13,416 INFO L226 Difference]: Without dead ends: 30230 [2022-03-03 16:23:13,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-03-03 16:23:13,418 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 269 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:23:13,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 578 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:23:13,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30230 states. [2022-03-03 16:23:14,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30230 to 23190. [2022-03-03 16:23:14,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23190 states, 23189 states have (on average 4.036957177972314) internal successors, (93613), 23189 states have internal predecessors, (93613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:14,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23190 states to 23190 states and 93613 transitions. [2022-03-03 16:23:14,695 INFO L78 Accepts]: Start accepts. Automaton has 23190 states and 93613 transitions. Word has length 67 [2022-03-03 16:23:14,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:23:14,696 INFO L470 AbstractCegarLoop]: Abstraction has 23190 states and 93613 transitions. [2022-03-03 16:23:14,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:14,696 INFO L276 IsEmpty]: Start isEmpty. Operand 23190 states and 93613 transitions. [2022-03-03 16:23:14,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-03 16:23:14,758 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:23:14,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:23:14,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 16:23:14,759 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 16:23:14,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:23:14,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1628856816, now seen corresponding path program 2 times [2022-03-03 16:23:14,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:23:14,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415488960] [2022-03-03 16:23:14,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:23:14,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:23:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:23:14,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:23:14,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:23:14,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415488960] [2022-03-03 16:23:14,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415488960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:23:14,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:23:14,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 16:23:14,856 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694856425] [2022-03-03 16:23:14,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:23:14,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 16:23:14,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:23:14,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 16:23:14,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:23:14,857 INFO L87 Difference]: Start difference. First operand 23190 states and 93613 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:15,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:23:15,176 INFO L93 Difference]: Finished difference Result 37438 states and 149135 transitions. [2022-03-03 16:23:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 16:23:15,177 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2022-03-03 16:23:15,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:23:15,253 INFO L225 Difference]: With dead ends: 37438 [2022-03-03 16:23:15,253 INFO L226 Difference]: Without dead ends: 19898 [2022-03-03 16:23:15,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-03-03 16:23:15,254 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 258 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:23:15,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 628 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:23:15,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19898 states. [2022-03-03 16:23:15,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19898 to 17210. [2022-03-03 16:23:15,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17210 states, 17209 states have (on average 3.9594979371259225) internal successors, (68139), 17209 states have internal predecessors, (68139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:15,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17210 states to 17210 states and 68139 transitions. [2022-03-03 16:23:15,918 INFO L78 Accepts]: Start accepts. Automaton has 17210 states and 68139 transitions. Word has length 67 [2022-03-03 16:23:15,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:23:15,919 INFO L470 AbstractCegarLoop]: Abstraction has 17210 states and 68139 transitions. [2022-03-03 16:23:15,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:15,919 INFO L276 IsEmpty]: Start isEmpty. Operand 17210 states and 68139 transitions. [2022-03-03 16:23:15,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-03 16:23:15,953 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:23:15,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:23:15,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 16:23:15,954 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 16:23:15,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:23:15,955 INFO L85 PathProgramCache]: Analyzing trace with hash 638700530, now seen corresponding path program 1 times [2022-03-03 16:23:15,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:23:15,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252067034] [2022-03-03 16:23:15,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:23:15,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:23:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:23:16,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:23:16,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:23:16,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252067034] [2022-03-03 16:23:16,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252067034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:23:16,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:23:16,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 16:23:16,034 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612732799] [2022-03-03 16:23:16,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:23:16,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 16:23:16,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:23:16,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 16:23:16,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:23:16,035 INFO L87 Difference]: Start difference. First operand 17210 states and 68139 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:16,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:23:16,556 INFO L93 Difference]: Finished difference Result 25978 states and 101931 transitions. [2022-03-03 16:23:16,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-03 16:23:16,557 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-03-03 16:23:16,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:23:16,611 INFO L225 Difference]: With dead ends: 25978 [2022-03-03 16:23:16,611 INFO L226 Difference]: Without dead ends: 14490 [2022-03-03 16:23:16,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-03-03 16:23:16,612 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 204 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:23:16,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 737 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:23:16,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14490 states. [2022-03-03 16:23:16,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14490 to 11802. [2022-03-03 16:23:16,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11802 states, 11801 states have (on average 3.871790526226591) internal successors, (45691), 11801 states have internal predecessors, (45691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:17,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11802 states to 11802 states and 45691 transitions. [2022-03-03 16:23:17,013 INFO L78 Accepts]: Start accepts. Automaton has 11802 states and 45691 transitions. Word has length 68 [2022-03-03 16:23:17,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:23:17,014 INFO L470 AbstractCegarLoop]: Abstraction has 11802 states and 45691 transitions. [2022-03-03 16:23:17,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:17,014 INFO L276 IsEmpty]: Start isEmpty. Operand 11802 states and 45691 transitions. [2022-03-03 16:23:17,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-03 16:23:17,041 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:23:17,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:23:17,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 16:23:17,041 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 16:23:17,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:23:17,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1604703909, now seen corresponding path program 1 times [2022-03-03 16:23:17,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:23:17,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932947324] [2022-03-03 16:23:17,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:23:17,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:23:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:23:17,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:23:17,164 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:23:17,164 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932947324] [2022-03-03 16:23:17,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932947324] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:23:17,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:23:17,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:23:17,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775403170] [2022-03-03 16:23:17,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:23:17,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:23:17,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:23:17,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:23:17,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:23:17,167 INFO L87 Difference]: Start difference. First operand 11802 states and 45691 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:17,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:23:17,553 INFO L93 Difference]: Finished difference Result 15465 states and 59362 transitions. [2022-03-03 16:23:17,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 16:23:17,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 69 [2022-03-03 16:23:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:23:17,590 INFO L225 Difference]: With dead ends: 15465 [2022-03-03 16:23:17,590 INFO L226 Difference]: Without dead ends: 11305 [2022-03-03 16:23:17,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:23:17,592 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 161 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:23:17,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 404 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:23:17,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11305 states. [2022-03-03 16:23:17,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11305 to 11305. [2022-03-03 16:23:17,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11305 states, 11304 states have (on average 3.8470452937013446) internal successors, (43487), 11304 states have internal predecessors, (43487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:17,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11305 states to 11305 states and 43487 transitions. [2022-03-03 16:23:17,856 INFO L78 Accepts]: Start accepts. Automaton has 11305 states and 43487 transitions. Word has length 69 [2022-03-03 16:23:17,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:23:17,856 INFO L470 AbstractCegarLoop]: Abstraction has 11305 states and 43487 transitions. [2022-03-03 16:23:17,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:17,857 INFO L276 IsEmpty]: Start isEmpty. Operand 11305 states and 43487 transitions. [2022-03-03 16:23:17,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-03 16:23:17,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:23:17,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:23:17,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-03 16:23:17,876 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 16:23:17,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:23:17,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1129407581, now seen corresponding path program 1 times [2022-03-03 16:23:17,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:23:17,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955595041] [2022-03-03 16:23:17,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:23:17,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:23:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:23:17,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:23:17,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:23:17,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955595041] [2022-03-03 16:23:17,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955595041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:23:17,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:23:17,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 16:23:17,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248455213] [2022-03-03 16:23:17,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:23:17,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 16:23:17,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:23:17,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 16:23:17,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:23:17,946 INFO L87 Difference]: Start difference. First operand 11305 states and 43487 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:18,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:23:18,171 INFO L93 Difference]: Finished difference Result 13051 states and 49277 transitions. [2022-03-03 16:23:18,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 16:23:18,171 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 70 [2022-03-03 16:23:18,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:23:18,205 INFO L225 Difference]: With dead ends: 13051 [2022-03-03 16:23:18,205 INFO L226 Difference]: Without dead ends: 9226 [2022-03-03 16:23:18,206 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 [2022-03-03 16:23:18,206 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 261 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:23:18,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 464 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:23:18,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9226 states. [2022-03-03 16:23:18,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9226 to 9226. [2022-03-03 16:23:18,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9226 states, 9225 states have (on average 3.7533875338753386) internal successors, (34625), 9225 states have internal predecessors, (34625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:18,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9226 states to 9226 states and 34625 transitions. [2022-03-03 16:23:18,443 INFO L78 Accepts]: Start accepts. Automaton has 9226 states and 34625 transitions. Word has length 70 [2022-03-03 16:23:18,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:23:18,443 INFO L470 AbstractCegarLoop]: Abstraction has 9226 states and 34625 transitions. [2022-03-03 16:23:18,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:18,443 INFO L276 IsEmpty]: Start isEmpty. Operand 9226 states and 34625 transitions. [2022-03-03 16:23:18,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-03 16:23:18,458 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:23:18,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:23:18,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-03 16:23:18,459 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 16:23:18,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:23:18,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1978125916, now seen corresponding path program 1 times [2022-03-03 16:23:18,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:23:18,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554567134] [2022-03-03 16:23:18,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:23:18,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:23:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:23:18,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:23:18,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:23:18,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554567134] [2022-03-03 16:23:18,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554567134] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:23:18,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:23:18,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 16:23:18,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418663533] [2022-03-03 16:23:18,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:23:18,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 16:23:18,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:23:18,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 16:23:18,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:23:18,549 INFO L87 Difference]: Start difference. First operand 9226 states and 34625 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:18,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:23:18,687 INFO L93 Difference]: Finished difference Result 8200 states and 29990 transitions. [2022-03-03 16:23:18,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 16:23:18,687 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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 71 [2022-03-03 16:23:18,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:23:18,701 INFO L225 Difference]: With dead ends: 8200 [2022-03-03 16:23:18,702 INFO L226 Difference]: Without dead ends: 5203 [2022-03-03 16:23:18,703 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 [2022-03-03 16:23:18,703 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 352 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:23:18,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 484 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:23:18,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5203 states. [2022-03-03 16:23:18,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5203 to 5203. [2022-03-03 16:23:18,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 3.583429450211457) internal successors, (18641), 5202 states have internal predecessors, (18641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:18,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 18641 transitions. [2022-03-03 16:23:18,801 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 18641 transitions. Word has length 71 [2022-03-03 16:23:18,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:23:18,801 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 18641 transitions. [2022-03-03 16:23:18,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:18,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 18641 transitions. [2022-03-03 16:23:18,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-03 16:23:18,810 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:23:18,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:23:18,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-03 16:23:18,810 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 16:23:18,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:23:18,811 INFO L85 PathProgramCache]: Analyzing trace with hash -981904543, now seen corresponding path program 1 times [2022-03-03 16:23:18,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:23:18,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899079811] [2022-03-03 16:23:18,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:23:18,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:23:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:23:18,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:23:18,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:23:18,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899079811] [2022-03-03 16:23:18,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899079811] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:23:18,963 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:23:18,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 16:23:18,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861138180] [2022-03-03 16:23:18,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:23:18,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 16:23:18,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:23:18,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 16:23:18,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:23:18,964 INFO L87 Difference]: Start difference. First operand 5203 states and 18641 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:19,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:23:19,065 INFO L93 Difference]: Finished difference Result 6826 states and 24223 transitions. [2022-03-03 16:23:19,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 16:23:19,066 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 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 73 [2022-03-03 16:23:19,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:23:19,080 INFO L225 Difference]: With dead ends: 6826 [2022-03-03 16:23:19,081 INFO L226 Difference]: Without dead ends: 5562 [2022-03-03 16:23:19,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-03-03 16:23:19,081 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 166 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:23:19,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 800 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:23:19,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5562 states. [2022-03-03 16:23:19,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5562 to 4995. [2022-03-03 16:23:19,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4995 states, 4994 states have (on average 3.5740889066880257) internal successors, (17849), 4994 states have internal predecessors, (17849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:19,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4995 states to 4995 states and 17849 transitions. [2022-03-03 16:23:19,184 INFO L78 Accepts]: Start accepts. Automaton has 4995 states and 17849 transitions. Word has length 73 [2022-03-03 16:23:19,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:23:19,185 INFO L470 AbstractCegarLoop]: Abstraction has 4995 states and 17849 transitions. [2022-03-03 16:23:19,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:19,185 INFO L276 IsEmpty]: Start isEmpty. Operand 4995 states and 17849 transitions. [2022-03-03 16:23:19,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-03 16:23:19,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:23:19,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:23:19,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-03 16:23:19,193 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 16:23:19,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:23:19,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1759913251, now seen corresponding path program 2 times [2022-03-03 16:23:19,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:23:19,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252183759] [2022-03-03 16:23:19,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:23:19,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:23:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:23:19,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:23:19,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:23:19,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252183759] [2022-03-03 16:23:19,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252183759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:23:19,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:23:19,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 16:23:19,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25881643] [2022-03-03 16:23:19,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:23:19,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 16:23:19,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:23:19,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 16:23:19,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-03 16:23:19,259 INFO L87 Difference]: Start difference. First operand 4995 states and 17849 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:19,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:23:19,347 INFO L93 Difference]: Finished difference Result 3348 states and 11693 transitions. [2022-03-03 16:23:19,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 16:23:19,347 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 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 73 [2022-03-03 16:23:19,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:23:19,348 INFO L225 Difference]: With dead ends: 3348 [2022-03-03 16:23:19,348 INFO L226 Difference]: Without dead ends: 0 [2022-03-03 16:23:19,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-03-03 16:23:19,348 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 290 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:23:19,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 380 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:23:19,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-03 16:23:19,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-03 16:23:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-03 16:23:19,349 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2022-03-03 16:23:19,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:23:19,349 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-03 16:23:19,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:23:19,349 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-03 16:23:19,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-03 16:23:19,352 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-03-03 16:23:19,352 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-03 16:23:19,352 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-03 16:23:19,352 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-03 16:23:19,352 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-03 16:23:19,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-03 16:23:19,355 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:23:19,356 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 16:23:19,356 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 16:23:19,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 04:23:19 BasicIcfg [2022-03-03 16:23:19,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 16:23:19,358 INFO L158 Benchmark]: Toolchain (without parser) took 22638.81ms. Allocated memory was 202.4MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 150.8MB in the beginning and 5.3GB in the end (delta: -5.2GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-03-03 16:23:19,359 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 202.4MB. Free memory is still 168.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 16:23:19,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.58ms. Allocated memory is still 202.4MB. Free memory was 150.7MB in the beginning and 168.6MB in the end (delta: -18.0MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. [2022-03-03 16:23:19,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.85ms. Allocated memory is still 202.4MB. Free memory was 168.6MB in the beginning and 166.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 16:23:19,359 INFO L158 Benchmark]: Boogie Preprocessor took 25.83ms. Allocated memory is still 202.4MB. Free memory was 166.5MB in the beginning and 164.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 16:23:19,359 INFO L158 Benchmark]: RCFGBuilder took 284.74ms. Allocated memory is still 202.4MB. Free memory was 164.9MB in the beginning and 151.8MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-03 16:23:19,359 INFO L158 Benchmark]: TraceAbstraction took 21912.04ms. Allocated memory was 202.4MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 151.3MB in the beginning and 5.3GB in the end (delta: -5.2GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-03-03 16:23:19,360 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 202.4MB. Free memory is still 168.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 385.58ms. Allocated memory is still 202.4MB. Free memory was 150.7MB in the beginning and 168.6MB in the end (delta: -18.0MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.85ms. Allocated memory is still 202.4MB. Free memory was 168.6MB in the beginning and 166.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.83ms. Allocated memory is still 202.4MB. Free memory was 166.5MB in the beginning and 164.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 284.74ms. Allocated memory is still 202.4MB. Free memory was 164.9MB in the beginning and 151.8MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 21912.04ms. Allocated memory was 202.4MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 151.3MB in the beginning and 5.3GB in the end (delta: -5.2GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 134 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 21.8s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.1s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2704 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2704 mSDsluCounter, 7484 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5985 mSDsCounter, 131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 821 IncrementalHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 131 mSolverCounterUnsat, 1702 mSDtfsCounter, 821 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 168 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34177occurred in iteration=0, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 36879 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 879 NumberOfCodeBlocks, 879 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 866 ConstructedInterpolants, 0 QuantifiedInterpolants, 3386 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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! [2022-03-03 16:23:19,386 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...