/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-820ea7a [2022-02-18 13:37:46,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 13:37:46,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 13:37:46,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-18 13:37:46,530 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 [2022-02-18 13:37:46,572 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 13:37:46,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 13:37:46,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 13:37:46,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 13:37:46,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 13:37:46,573 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 13:37:46,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 13:37:46,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 13:37:46,574 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 13:37:46,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 13:37:46,575 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 13:37:46,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 13:37:46,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 13:37:46,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 13:37:46,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 13:37:46,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 13:37:46,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 13:37:46,575 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 13:37:46,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 13:37:46,576 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 13:37:46,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 13:37:46,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 13:37:46,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 13:37:46,576 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 13:37:46,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 13:37:46,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 13:37:46,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 13:37:46,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 13:37:46,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 13:37:46,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 13:37:46,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 13:37:46,578 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 13:37:46,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 13:37:46,578 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 13:37:46,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 13:37:46,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 13:37:46,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 13:37:46,938 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-18 13:37:46,941 INFO L275 PluginConnector]: CDTParser initialized [2022-02-18 13:37:46,942 INFO L432 ainManager$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 [2022-02-18 13:37:47,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2141387c/443d7a687eef4ed889c09b4359b5fad3/FLAG67d63235a [2022-02-18 13:37:47,527 INFO L306 CDTParser]: Found 1 translation units. [2022-02-18 13:37:47,527 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-18 13:37:47,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2141387c/443d7a687eef4ed889c09b4359b5fad3/FLAG67d63235a [2022-02-18 13:37:47,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2141387c/443d7a687eef4ed889c09b4359b5fad3 [2022-02-18 13:37:47,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 13:37:47,933 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-18 13:37:47,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-18 13:37:47,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-18 13:37:47,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-18 13:37:47,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:37:47" (1/1) ... [2022-02-18 13:37:47,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@80c8301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:47, skipping insertion in model container [2022-02-18 13:37:47,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:37:47" (1/1) ... [2022-02-18 13:37:47,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-18 13:37:47,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-18 13:37:48,123 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] [2022-02-18 13:37:48,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 13:37:48,240 INFO L203 MainTranslator]: Completed pre-run [2022-02-18 13:37:48,252 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] [2022-02-18 13:37:48,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 13:37:48,324 INFO L208 MainTranslator]: Completed translation [2022-02-18 13:37:48,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:48 WrapperNode [2022-02-18 13:37:48,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-18 13:37:48,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 13:37:48,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 13:37:48,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 13:37:48,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:48" (1/1) ... [2022-02-18 13:37:48,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:48" (1/1) ... [2022-02-18 13:37:48,372 INFO L137 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2022-02-18 13:37:48,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 13:37:48,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 13:37:48,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 13:37:48,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 13:37:48,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:48" (1/1) ... [2022-02-18 13:37:48,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:48" (1/1) ... [2022-02-18 13:37:48,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:48" (1/1) ... [2022-02-18 13:37:48,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:48" (1/1) ... [2022-02-18 13:37:48,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:48" (1/1) ... [2022-02-18 13:37:48,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:48" (1/1) ... [2022-02-18 13:37:48,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:48" (1/1) ... [2022-02-18 13:37:48,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 13:37:48,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 13:37:48,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 13:37:48,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 13:37:48,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:48" (1/1) ... [2022-02-18 13:37:48,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 13:37:48,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 13:37:48,447 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) [2022-02-18 13:37:48,456 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 [2022-02-18 13:37:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-18 13:37:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-18 13:37:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-18 13:37:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-18 13:37:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-18 13:37:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-02-18 13:37:48,508 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-02-18 13:37:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-02-18 13:37:48,508 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-02-18 13:37:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-02-18 13:37:48,508 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-02-18 13:37:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-02-18 13:37:48,509 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-02-18 13:37:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-18 13:37:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-18 13:37:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 13:37:48,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 13:37:48,510 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 13:37:48,619 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 13:37:48,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 13:37:48,751 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 13:37:48,756 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 13:37:48,757 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-18 13:37:48,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:37:48 BoogieIcfgContainer [2022-02-18 13:37:48,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 13:37:48,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 13:37:48,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 13:37:48,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 13:37:48,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 01:37:47" (1/3) ... [2022-02-18 13:37:48,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e184280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:37:48, skipping insertion in model container [2022-02-18 13:37:48,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:48" (2/3) ... [2022-02-18 13:37:48,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e184280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:37:48, skipping insertion in model container [2022-02-18 13:37:48,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:37:48" (3/3) ... [2022-02-18 13:37:48,767 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-18 13:37:48,770 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 13:37:48,770 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 13:37:48,770 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 13:37:48,770 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 13:37:48,827 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,828 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,828 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,828 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,830 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,830 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,830 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,830 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,833 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,833 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,834 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,834 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,838 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,838 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,838 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,838 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,838 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,839 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,839 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,839 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,839 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,839 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,840 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,840 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,840 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,840 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,840 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,840 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,841 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,841 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,841 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,841 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,841 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,841 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,841 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,841 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,842 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,842 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,842 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,842 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,842 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,842 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,842 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,842 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,843 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,843 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,843 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,843 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,846 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,846 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,846 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,846 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,858 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,858 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,858 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,859 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,860 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,860 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,860 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,861 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,862 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,862 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,862 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,862 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:48,863 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-18 13:37:48,902 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 13:37:48,913 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 [2022-02-18 13:37:48,914 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-18 13:37:48,932 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 116 places, 105 transitions, 230 flow [2022-02-18 13:37:50,117 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) [2022-02-18 13:37:50,176 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) [2022-02-18 13:37:50,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-02-18 13:37:50,384 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:50,384 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] [2022-02-18 13:37:50,385 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)] === [2022-02-18 13:37:50,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:50,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1881502097, now seen corresponding path program 1 times [2022-02-18 13:37:50,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:50,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083986035] [2022-02-18 13:37:50,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:50,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:50,704 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:50,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083986035] [2022-02-18 13:37:50,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083986035] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:50,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:50,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 13:37:50,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135247253] [2022-02-18 13:37:50,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:50,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 13:37:50,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:50,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 13:37:50,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-18 13:37:50,874 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) [2022-02-18 13:37:51,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:51,746 INFO L93 Difference]: Finished difference Result 39469 states and 166967 transitions. [2022-02-18 13:37:51,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 13:37:51,749 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 [2022-02-18 13:37:51,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:52,198 INFO L225 Difference]: With dead ends: 39469 [2022-02-18 13:37:52,198 INFO L226 Difference]: Without dead ends: 28885 [2022-02-18 13:37:52,200 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 [2022-02-18 13:37:52,202 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 [2022-02-18 13:37:52,202 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] [2022-02-18 13:37:52,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28885 states. [2022-02-18 13:37:53,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28885 to 28885. [2022-02-18 13:37:53,602 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) [2022-02-18 13:37:53,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28885 states to 28885 states and 121859 transitions. [2022-02-18 13:37:53,834 INFO L78 Accepts]: Start accepts. Automaton has 28885 states and 121859 transitions. Word has length 61 [2022-02-18 13:37:53,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:53,835 INFO L470 AbstractCegarLoop]: Abstraction has 28885 states and 121859 transitions. [2022-02-18 13:37:53,836 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) [2022-02-18 13:37:53,836 INFO L276 IsEmpty]: Start isEmpty. Operand 28885 states and 121859 transitions. [2022-02-18 13:37:54,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-18 13:37:54,089 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:54,089 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] [2022-02-18 13:37:54,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 13:37:54,090 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)] === [2022-02-18 13:37:54,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:54,091 INFO L85 PathProgramCache]: Analyzing trace with hash -300703474, now seen corresponding path program 1 times [2022-02-18 13:37:54,091 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:54,091 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291655790] [2022-02-18 13:37:54,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:54,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:54,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:54,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:54,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291655790] [2022-02-18 13:37:54,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291655790] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:54,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:54,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 13:37:54,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468865927] [2022-02-18 13:37:54,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:54,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 13:37:54,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:54,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 13:37:54,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-18 13:37:54,246 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) [2022-02-18 13:37:54,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:54,771 INFO L93 Difference]: Finished difference Result 33925 states and 142181 transitions. [2022-02-18 13:37:54,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 13:37:54,772 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 [2022-02-18 13:37:54,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:54,909 INFO L225 Difference]: With dead ends: 33925 [2022-02-18 13:37:54,909 INFO L226 Difference]: Without dead ends: 27625 [2022-02-18 13:37:54,910 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 [2022-02-18 13:37:54,910 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 [2022-02-18 13:37:54,911 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] [2022-02-18 13:37:54,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27625 states. [2022-02-18 13:37:55,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27625 to 27625. [2022-02-18 13:37:55,913 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) [2022-02-18 13:37:56,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27625 states to 27625 states and 116021 transitions. [2022-02-18 13:37:56,034 INFO L78 Accepts]: Start accepts. Automaton has 27625 states and 116021 transitions. Word has length 63 [2022-02-18 13:37:56,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:56,034 INFO L470 AbstractCegarLoop]: Abstraction has 27625 states and 116021 transitions. [2022-02-18 13:37:56,035 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) [2022-02-18 13:37:56,035 INFO L276 IsEmpty]: Start isEmpty. Operand 27625 states and 116021 transitions. [2022-02-18 13:37:56,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-18 13:37:56,099 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:56,099 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] [2022-02-18 13:37:56,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 13:37:56,099 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)] === [2022-02-18 13:37:56,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:56,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1166229359, now seen corresponding path program 1 times [2022-02-18 13:37:56,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:56,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042978980] [2022-02-18 13:37:56,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:56,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:56,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:56,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:56,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042978980] [2022-02-18 13:37:56,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042978980] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:56,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:56,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 13:37:56,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016850266] [2022-02-18 13:37:56,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:56,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 13:37:56,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:56,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 13:37:56,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-18 13:37:56,423 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) [2022-02-18 13:37:56,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:56,769 INFO L93 Difference]: Finished difference Result 30145 states and 125867 transitions. [2022-02-18 13:37:56,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 13:37:56,769 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 [2022-02-18 13:37:56,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:56,888 INFO L225 Difference]: With dead ends: 30145 [2022-02-18 13:37:56,888 INFO L226 Difference]: Without dead ends: 25945 [2022-02-18 13:37:56,888 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 [2022-02-18 13:37:56,889 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, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:56,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 511 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:37:56,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25945 states. [2022-02-18 13:37:57,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25945 to 25945. [2022-02-18 13:37:58,007 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) [2022-02-18 13:37:58,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25945 states to 25945 states and 108657 transitions. [2022-02-18 13:37:58,108 INFO L78 Accepts]: Start accepts. Automaton has 25945 states and 108657 transitions. Word has length 65 [2022-02-18 13:37:58,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:58,108 INFO L470 AbstractCegarLoop]: Abstraction has 25945 states and 108657 transitions. [2022-02-18 13:37:58,109 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) [2022-02-18 13:37:58,109 INFO L276 IsEmpty]: Start isEmpty. Operand 25945 states and 108657 transitions. [2022-02-18 13:37:58,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-18 13:37:58,158 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:58,158 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] [2022-02-18 13:37:58,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-18 13:37:58,159 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)] === [2022-02-18 13:37:58,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:58,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1097323382, now seen corresponding path program 1 times [2022-02-18 13:37:58,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:58,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666606469] [2022-02-18 13:37:58,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:58,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:58,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:58,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:58,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666606469] [2022-02-18 13:37:58,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666606469] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:58,236 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:58,236 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 13:37:58,236 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222070977] [2022-02-18 13:37:58,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:58,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 13:37:58,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:58,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 13:37:58,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-18 13:37:58,237 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) [2022-02-18 13:37:58,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:58,976 INFO L93 Difference]: Finished difference Result 52937 states and 219209 transitions. [2022-02-18 13:37:58,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 13:37:58,977 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 [2022-02-18 13:37:58,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:59,462 INFO L225 Difference]: With dead ends: 52937 [2022-02-18 13:37:59,463 INFO L226 Difference]: Without dead ends: 41497 [2022-02-18 13:37:59,463 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 [2022-02-18 13:37:59,468 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, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:59,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 565 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:37:59,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41497 states. [2022-02-18 13:38:00,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41497 to 30241. [2022-02-18 13:38:00,522 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) [2022-02-18 13:38:00,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30241 states to 30241 states and 124643 transitions. [2022-02-18 13:38:00,637 INFO L78 Accepts]: Start accepts. Automaton has 30241 states and 124643 transitions. Word has length 66 [2022-02-18 13:38:00,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:38:00,637 INFO L470 AbstractCegarLoop]: Abstraction has 30241 states and 124643 transitions. [2022-02-18 13:38:00,637 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) [2022-02-18 13:38:00,637 INFO L276 IsEmpty]: Start isEmpty. Operand 30241 states and 124643 transitions. [2022-02-18 13:38:00,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-18 13:38:00,694 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:38:00,694 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] [2022-02-18 13:38:00,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-18 13:38:00,695 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)] === [2022-02-18 13:38:00,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:38:00,696 INFO L85 PathProgramCache]: Analyzing trace with hash 783324234, now seen corresponding path program 2 times [2022-02-18 13:38:00,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:38:00,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291890000] [2022-02-18 13:38:00,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:38:00,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:38:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:38:00,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:38:00,849 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:38:00,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291890000] [2022-02-18 13:38:00,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291890000] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:38:00,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:38:00,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 13:38:00,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931894492] [2022-02-18 13:38:00,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:38:00,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 13:38:00,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:38:00,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 13:38:00,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-18 13:38:00,861 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) [2022-02-18 13:38:01,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:38:01,743 INFO L93 Difference]: Finished difference Result 53465 states and 217653 transitions. [2022-02-18 13:38:01,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 13:38:01,744 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 [2022-02-18 13:38:01,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:38:02,202 INFO L225 Difference]: With dead ends: 53465 [2022-02-18 13:38:02,203 INFO L226 Difference]: Without dead ends: 38505 [2022-02-18 13:38:02,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-18 13:38:02,203 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 [2022-02-18 13:38:02,204 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] [2022-02-18 13:38:02,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38505 states. [2022-02-18 13:38:03,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38505 to 25865. [2022-02-18 13:38:03,102 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) [2022-02-18 13:38:03,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25865 states to 25865 states and 105213 transitions. [2022-02-18 13:38:03,213 INFO L78 Accepts]: Start accepts. Automaton has 25865 states and 105213 transitions. Word has length 66 [2022-02-18 13:38:03,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:38:03,214 INFO L470 AbstractCegarLoop]: Abstraction has 25865 states and 105213 transitions. [2022-02-18 13:38:03,214 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) [2022-02-18 13:38:03,214 INFO L276 IsEmpty]: Start isEmpty. Operand 25865 states and 105213 transitions. [2022-02-18 13:38:03,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-18 13:38:03,272 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:38:03,272 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] [2022-02-18 13:38:03,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-18 13:38:03,273 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)] === [2022-02-18 13:38:03,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:38:03,273 INFO L85 PathProgramCache]: Analyzing trace with hash -696097874, now seen corresponding path program 1 times [2022-02-18 13:38:03,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:38:03,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444986365] [2022-02-18 13:38:03,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:38:03,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:38:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:38:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:38:03,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:38:03,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444986365] [2022-02-18 13:38:03,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444986365] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:38:03,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:38:03,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 13:38:03,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662480108] [2022-02-18 13:38:03,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:38:03,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 13:38:03,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:38:03,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 13:38:03,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-18 13:38:03,362 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) [2022-02-18 13:38:04,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:38:04,070 INFO L93 Difference]: Finished difference Result 49145 states and 198369 transitions. [2022-02-18 13:38:04,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-18 13:38:04,071 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 [2022-02-18 13:38:04,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:38:04,203 INFO L225 Difference]: With dead ends: 49145 [2022-02-18 13:38:04,203 INFO L226 Difference]: Without dead ends: 30230 [2022-02-18 13:38:04,204 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 [2022-02-18 13:38:04,204 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 269 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 13:38:04,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 578 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 13:38:04,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30230 states. [2022-02-18 13:38:05,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30230 to 23190. [2022-02-18 13:38:05,072 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) [2022-02-18 13:38:05,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23190 states to 23190 states and 93613 transitions. [2022-02-18 13:38:05,165 INFO L78 Accepts]: Start accepts. Automaton has 23190 states and 93613 transitions. Word has length 67 [2022-02-18 13:38:05,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:38:05,165 INFO L470 AbstractCegarLoop]: Abstraction has 23190 states and 93613 transitions. [2022-02-18 13:38:05,166 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) [2022-02-18 13:38:05,166 INFO L276 IsEmpty]: Start isEmpty. Operand 23190 states and 93613 transitions. [2022-02-18 13:38:05,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-18 13:38:05,215 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:38:05,215 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] [2022-02-18 13:38:05,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-18 13:38:05,215 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)] === [2022-02-18 13:38:05,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:38:05,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1628856816, now seen corresponding path program 2 times [2022-02-18 13:38:05,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:38:05,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479321552] [2022-02-18 13:38:05,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:38:05,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:38:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:38:05,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:38:05,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:38:05,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479321552] [2022-02-18 13:38:05,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479321552] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:38:05,344 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:38:05,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 13:38:05,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966222707] [2022-02-18 13:38:05,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:38:05,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 13:38:05,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:38:05,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 13:38:05,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-18 13:38:05,345 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) [2022-02-18 13:38:06,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:38:06,028 INFO L93 Difference]: Finished difference Result 37438 states and 149135 transitions. [2022-02-18 13:38:06,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-18 13:38:06,029 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 [2022-02-18 13:38:06,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:38:06,099 INFO L225 Difference]: With dead ends: 37438 [2022-02-18 13:38:06,099 INFO L226 Difference]: Without dead ends: 19898 [2022-02-18 13:38:06,099 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 [2022-02-18 13:38:06,100 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 258 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 13:38:06,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 628 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 13:38:06,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19898 states. [2022-02-18 13:38:06,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19898 to 17210. [2022-02-18 13:38:06,747 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) [2022-02-18 13:38:06,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17210 states to 17210 states and 68139 transitions. [2022-02-18 13:38:06,813 INFO L78 Accepts]: Start accepts. Automaton has 17210 states and 68139 transitions. Word has length 67 [2022-02-18 13:38:06,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:38:06,813 INFO L470 AbstractCegarLoop]: Abstraction has 17210 states and 68139 transitions. [2022-02-18 13:38:06,814 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) [2022-02-18 13:38:06,814 INFO L276 IsEmpty]: Start isEmpty. Operand 17210 states and 68139 transitions. [2022-02-18 13:38:06,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-18 13:38:06,845 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:38:06,845 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] [2022-02-18 13:38:06,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-18 13:38:06,845 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)] === [2022-02-18 13:38:06,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:38:06,846 INFO L85 PathProgramCache]: Analyzing trace with hash 638700530, now seen corresponding path program 1 times [2022-02-18 13:38:06,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:38:06,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062254992] [2022-02-18 13:38:06,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:38:06,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:38:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:38:06,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:38:06,937 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:38:06,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062254992] [2022-02-18 13:38:06,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062254992] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:38:06,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:38:06,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 13:38:06,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570233267] [2022-02-18 13:38:06,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:38:06,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 13:38:06,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:38:06,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 13:38:06,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-18 13:38:06,939 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) [2022-02-18 13:38:07,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:38:07,223 INFO L93 Difference]: Finished difference Result 25978 states and 101931 transitions. [2022-02-18 13:38:07,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 13:38:07,223 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 [2022-02-18 13:38:07,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:38:07,518 INFO L225 Difference]: With dead ends: 25978 [2022-02-18 13:38:07,518 INFO L226 Difference]: Without dead ends: 14490 [2022-02-18 13:38:07,519 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 [2022-02-18 13:38:07,526 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 13:38:07,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 737 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 13:38:07,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14490 states. [2022-02-18 13:38:07,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14490 to 11802. [2022-02-18 13:38:07,777 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) [2022-02-18 13:38:07,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11802 states to 11802 states and 45691 transitions. [2022-02-18 13:38:07,813 INFO L78 Accepts]: Start accepts. Automaton has 11802 states and 45691 transitions. Word has length 68 [2022-02-18 13:38:07,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:38:07,813 INFO L470 AbstractCegarLoop]: Abstraction has 11802 states and 45691 transitions. [2022-02-18 13:38:07,813 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) [2022-02-18 13:38:07,813 INFO L276 IsEmpty]: Start isEmpty. Operand 11802 states and 45691 transitions. [2022-02-18 13:38:07,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-18 13:38:07,831 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:38:07,832 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] [2022-02-18 13:38:07,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-18 13:38:07,832 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)] === [2022-02-18 13:38:07,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:38:07,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1604703909, now seen corresponding path program 1 times [2022-02-18 13:38:07,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:38:07,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17816123] [2022-02-18 13:38:07,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:38:07,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:38:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:38:07,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:38:07,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:38:07,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17816123] [2022-02-18 13:38:07,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17816123] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:38:07,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:38:07,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 13:38:07,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348369638] [2022-02-18 13:38:07,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:38:07,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 13:38:07,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:38:07,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 13:38:07,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-18 13:38:07,888 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) [2022-02-18 13:38:08,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:38:08,040 INFO L93 Difference]: Finished difference Result 15465 states and 59362 transitions. [2022-02-18 13:38:08,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 13:38:08,040 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 [2022-02-18 13:38:08,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:38:08,293 INFO L225 Difference]: With dead ends: 15465 [2022-02-18 13:38:08,294 INFO L226 Difference]: Without dead ends: 11305 [2022-02-18 13:38:08,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-18 13:38:08,296 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 161 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:38:08,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 404 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:38:08,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11305 states. [2022-02-18 13:38:08,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11305 to 11305. [2022-02-18 13:38:08,511 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) [2022-02-18 13:38:08,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11305 states to 11305 states and 43487 transitions. [2022-02-18 13:38:08,550 INFO L78 Accepts]: Start accepts. Automaton has 11305 states and 43487 transitions. Word has length 69 [2022-02-18 13:38:08,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:38:08,550 INFO L470 AbstractCegarLoop]: Abstraction has 11305 states and 43487 transitions. [2022-02-18 13:38:08,550 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) [2022-02-18 13:38:08,550 INFO L276 IsEmpty]: Start isEmpty. Operand 11305 states and 43487 transitions. [2022-02-18 13:38:08,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-18 13:38:08,571 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:38:08,571 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] [2022-02-18 13:38:08,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-18 13:38:08,572 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)] === [2022-02-18 13:38:08,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:38:08,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1129407581, now seen corresponding path program 1 times [2022-02-18 13:38:08,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:38:08,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592466986] [2022-02-18 13:38:08,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:38:08,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:38:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:38:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:38:08,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:38:08,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592466986] [2022-02-18 13:38:08,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592466986] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:38:08,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:38:08,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 13:38:08,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239943994] [2022-02-18 13:38:08,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:38:08,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 13:38:08,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:38:08,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 13:38:08,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-18 13:38:08,680 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) [2022-02-18 13:38:08,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:38:08,852 INFO L93 Difference]: Finished difference Result 13051 states and 49277 transitions. [2022-02-18 13:38:08,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 13:38:08,852 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 [2022-02-18 13:38:08,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:38:08,880 INFO L225 Difference]: With dead ends: 13051 [2022-02-18 13:38:08,880 INFO L226 Difference]: Without dead ends: 9226 [2022-02-18 13:38:08,880 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 [2022-02-18 13:38:08,881 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 261 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 13:38:08,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 464 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 13:38:08,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9226 states. [2022-02-18 13:38:09,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9226 to 9226. [2022-02-18 13:38:09,162 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) [2022-02-18 13:38:09,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9226 states to 9226 states and 34625 transitions. [2022-02-18 13:38:09,193 INFO L78 Accepts]: Start accepts. Automaton has 9226 states and 34625 transitions. Word has length 70 [2022-02-18 13:38:09,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:38:09,193 INFO L470 AbstractCegarLoop]: Abstraction has 9226 states and 34625 transitions. [2022-02-18 13:38:09,193 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) [2022-02-18 13:38:09,194 INFO L276 IsEmpty]: Start isEmpty. Operand 9226 states and 34625 transitions. [2022-02-18 13:38:09,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-18 13:38:09,209 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:38:09,209 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] [2022-02-18 13:38:09,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-18 13:38:09,210 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)] === [2022-02-18 13:38:09,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:38:09,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1978125916, now seen corresponding path program 1 times [2022-02-18 13:38:09,211 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:38:09,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438064877] [2022-02-18 13:38:09,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:38:09,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:38:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:38:09,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:38:09,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:38:09,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438064877] [2022-02-18 13:38:09,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438064877] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:38:09,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:38:09,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 13:38:09,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447735121] [2022-02-18 13:38:09,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:38:09,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 13:38:09,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:38:09,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 13:38:09,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-02-18 13:38:09,322 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) [2022-02-18 13:38:09,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:38:09,467 INFO L93 Difference]: Finished difference Result 8200 states and 29990 transitions. [2022-02-18 13:38:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-18 13:38:09,467 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 [2022-02-18 13:38:09,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:38:09,480 INFO L225 Difference]: With dead ends: 8200 [2022-02-18 13:38:09,481 INFO L226 Difference]: Without dead ends: 5203 [2022-02-18 13:38:09,481 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 [2022-02-18 13:38:09,481 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 [2022-02-18 13:38:09,482 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] [2022-02-18 13:38:09,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5203 states. [2022-02-18 13:38:09,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5203 to 5203. [2022-02-18 13:38:09,562 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) [2022-02-18 13:38:09,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 18641 transitions. [2022-02-18 13:38:09,575 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 18641 transitions. Word has length 71 [2022-02-18 13:38:09,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:38:09,576 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 18641 transitions. [2022-02-18 13:38:09,576 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) [2022-02-18 13:38:09,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 18641 transitions. [2022-02-18 13:38:09,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-18 13:38:09,584 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:38:09,584 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] [2022-02-18 13:38:09,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-18 13:38:09,585 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)] === [2022-02-18 13:38:09,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:38:09,585 INFO L85 PathProgramCache]: Analyzing trace with hash -981904543, now seen corresponding path program 1 times [2022-02-18 13:38:09,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:38:09,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770417528] [2022-02-18 13:38:09,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:38:09,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:38:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:38:09,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:38:09,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:38:09,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770417528] [2022-02-18 13:38:09,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770417528] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:38:09,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:38:09,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 13:38:09,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651338972] [2022-02-18 13:38:09,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:38:09,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 13:38:09,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:38:09,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 13:38:09,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-18 13:38:09,679 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) [2022-02-18 13:38:09,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:38:09,785 INFO L93 Difference]: Finished difference Result 6826 states and 24223 transitions. [2022-02-18 13:38:09,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 13:38:09,786 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 [2022-02-18 13:38:09,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:38:09,800 INFO L225 Difference]: With dead ends: 6826 [2022-02-18 13:38:09,800 INFO L226 Difference]: Without dead ends: 5562 [2022-02-18 13:38:09,800 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 [2022-02-18 13:38:09,801 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 [2022-02-18 13:38:09,801 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] [2022-02-18 13:38:09,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5562 states. [2022-02-18 13:38:09,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5562 to 4995. [2022-02-18 13:38:09,949 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) [2022-02-18 13:38:09,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4995 states to 4995 states and 17849 transitions. [2022-02-18 13:38:09,966 INFO L78 Accepts]: Start accepts. Automaton has 4995 states and 17849 transitions. Word has length 73 [2022-02-18 13:38:09,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:38:09,966 INFO L470 AbstractCegarLoop]: Abstraction has 4995 states and 17849 transitions. [2022-02-18 13:38:09,966 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) [2022-02-18 13:38:09,966 INFO L276 IsEmpty]: Start isEmpty. Operand 4995 states and 17849 transitions. [2022-02-18 13:38:09,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-18 13:38:09,974 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:38:09,974 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] [2022-02-18 13:38:09,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-18 13:38:09,975 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)] === [2022-02-18 13:38:09,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:38:09,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1759913251, now seen corresponding path program 2 times [2022-02-18 13:38:09,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:38:09,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453096995] [2022-02-18 13:38:09,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:38:09,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:38:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:38:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:38:10,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:38:10,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453096995] [2022-02-18 13:38:10,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453096995] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:38:10,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:38:10,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-18 13:38:10,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380771720] [2022-02-18 13:38:10,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:38:10,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 13:38:10,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:38:10,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 13:38:10,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-18 13:38:10,057 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) [2022-02-18 13:38:10,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:38:10,155 INFO L93 Difference]: Finished difference Result 3348 states and 11693 transitions. [2022-02-18 13:38:10,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 13:38:10,155 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 [2022-02-18 13:38:10,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:38:10,156 INFO L225 Difference]: With dead ends: 3348 [2022-02-18 13:38:10,156 INFO L226 Difference]: Without dead ends: 0 [2022-02-18 13:38:10,156 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 [2022-02-18 13:38:10,157 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 [2022-02-18 13:38:10,157 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] [2022-02-18 13:38:10,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-18 13:38:10,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-18 13:38:10,159 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) [2022-02-18 13:38:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-18 13:38:10,159 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2022-02-18 13:38:10,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:38:10,159 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-18 13:38:10,159 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) [2022-02-18 13:38:10,159 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-18 13:38:10,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-18 13:38:10,162 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-02-18 13:38:10,162 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-18 13:38:10,162 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-18 13:38:10,162 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-18 13:38:10,162 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-18 13:38:10,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-18 13:38:10,164 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:38:10,166 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-18 13:38:10,166 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-18 13:38:10,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 01:38:10 BasicIcfg [2022-02-18 13:38:10,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-18 13:38:10,168 INFO L158 Benchmark]: Toolchain (without parser) took 22234.93ms. Allocated memory was 164.6MB in the beginning and 7.4GB in the end (delta: 7.2GB). Free memory was 137.1MB in the beginning and 5.5GB in the end (delta: -5.4GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-02-18 13:38:10,168 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 164.6MB. Free memory is still 125.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-18 13:38:10,168 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.65ms. Allocated memory is still 164.6MB. Free memory was 136.9MB in the beginning and 128.7MB in the end (delta: 8.2MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. [2022-02-18 13:38:10,169 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.38ms. Allocated memory is still 164.6MB. Free memory was 128.7MB in the beginning and 126.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-18 13:38:10,169 INFO L158 Benchmark]: Boogie Preprocessor took 27.87ms. Allocated memory is still 164.6MB. Free memory was 126.6MB in the beginning and 125.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-18 13:38:10,169 INFO L158 Benchmark]: RCFGBuilder took 360.01ms. Allocated memory is still 164.6MB. Free memory was 125.2MB in the beginning and 111.9MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-18 13:38:10,170 INFO L158 Benchmark]: TraceAbstraction took 21405.20ms. Allocated memory was 164.6MB in the beginning and 7.4GB in the end (delta: 7.2GB). Free memory was 111.6MB in the beginning and 5.5GB in the end (delta: -5.4GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-02-18 13:38:10,171 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 164.6MB. Free memory is still 125.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 390.65ms. Allocated memory is still 164.6MB. Free memory was 136.9MB in the beginning and 128.7MB in the end (delta: 8.2MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.38ms. Allocated memory is still 164.6MB. Free memory was 128.7MB in the beginning and 126.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.87ms. Allocated memory is still 164.6MB. Free memory was 126.6MB in the beginning and 125.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 360.01ms. Allocated memory is still 164.6MB. Free memory was 125.2MB in the beginning and 111.9MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 21405.20ms. Allocated memory was 164.6MB in the beginning and 7.4GB in the end (delta: 7.2GB). Free memory was 111.6MB in the beginning and 5.5GB in the end (delta: -5.4GB). 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: 21.3s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.9s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2704 SdHoareTripleChecker+Valid, 0.7s 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, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 168 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.0s 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: 8.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 36879 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s 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! [2022-02-18 13:38:10,216 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...