/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-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 19:05:48,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 19:05:48,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 19:05:48,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-06 19:05:48,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-06 19:05:48,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-06 19:05:48,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-06 19:05:48,106 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-Delay.epf [2021-08-06 19:05:48,133 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 19:05:48,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 19:05:48,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 19:05:48,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 19:05:48,137 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 19:05:48,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 19:05:48,137 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 19:05:48,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 19:05:48,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 19:05:48,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 19:05:48,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 19:05:48,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 19:05:48,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 19:05:48,138 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 19:05:48,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 19:05:48,139 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 19:05:48,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 19:05:48,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 19:05:48,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 19:05:48,139 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 19:05:48,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 19:05:48,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 19:05:48,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 19:05:48,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 19:05:48,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 19:05:48,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 19:05:48,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 19:05:48,140 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 19:05:48,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 19:05:48,140 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-06 19:05:48,140 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 19:05:48,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 19:05:48,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 19:05:48,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 19:05:48,358 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-06 19:05:48,358 INFO L275 PluginConnector]: CDTParser initialized [2021-08-06 19:05:48,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2021-08-06 19:05:48,415 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5a260119/b8496f3ee94249a790e1c6ec30a9cc5f/FLAG951d3fc34 [2021-08-06 19:05:48,846 INFO L306 CDTParser]: Found 1 translation units. [2021-08-06 19:05:48,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2021-08-06 19:05:48,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5a260119/b8496f3ee94249a790e1c6ec30a9cc5f/FLAG951d3fc34 [2021-08-06 19:05:48,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5a260119/b8496f3ee94249a790e1c6ec30a9cc5f [2021-08-06 19:05:48,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 19:05:48,877 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-06 19:05:48,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-06 19:05:48,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-06 19:05:48,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-06 19:05:48,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 07:05:48" (1/1) ... [2021-08-06 19:05:48,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a53f194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:48, skipping insertion in model container [2021-08-06 19:05:48,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 07:05:48" (1/1) ... [2021-08-06 19:05:48,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-06 19:05:48,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-06 19:05:49,059 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i[950,963] [2021-08-06 19:05:49,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 19:05:49,246 INFO L203 MainTranslator]: Completed pre-run [2021-08-06 19:05:49,254 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i[950,963] [2021-08-06 19:05:49,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 19:05:49,310 INFO L208 MainTranslator]: Completed translation [2021-08-06 19:05:49,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:49 WrapperNode [2021-08-06 19:05:49,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-06 19:05:49,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 19:05:49,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 19:05:49,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 19:05:49,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:49" (1/1) ... [2021-08-06 19:05:49,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:49" (1/1) ... [2021-08-06 19:05:49,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 19:05:49,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 19:05:49,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 19:05:49,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 19:05:49,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:49" (1/1) ... [2021-08-06 19:05:49,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:49" (1/1) ... [2021-08-06 19:05:49,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:49" (1/1) ... [2021-08-06 19:05:49,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:49" (1/1) ... [2021-08-06 19:05:49,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:49" (1/1) ... [2021-08-06 19:05:49,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:49" (1/1) ... [2021-08-06 19:05:49,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:49" (1/1) ... [2021-08-06 19:05:49,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 19:05:49,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 19:05:49,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 19:05:49,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 19:05:49,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:49" (1/1) ... [2021-08-06 19:05:49,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 19:05:49,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 19:05:49,373 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) [2021-08-06 19:05:49,393 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 [2021-08-06 19:05:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-06 19:05:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-06 19:05:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-06 19:05:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-06 19:05:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-06 19:05:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-06 19:05:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-06 19:05:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-06 19:05:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-06 19:05:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-06 19:05:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-06 19:05:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-06 19:05:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 19:05:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 19:05:49,418 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-06 19:05:49,699 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 19:05:49,699 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-06 19:05:49,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 07:05:49 BoogieIcfgContainer [2021-08-06 19:05:49,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 19:05:49,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 19:05:49,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 19:05:49,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 19:05:49,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.08 07:05:48" (1/3) ... [2021-08-06 19:05:49,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b48b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 07:05:49, skipping insertion in model container [2021-08-06 19:05:49,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:49" (2/3) ... [2021-08-06 19:05:49,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b48b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 07:05:49, skipping insertion in model container [2021-08-06 19:05:49,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 07:05:49" (3/3) ... [2021-08-06 19:05:49,707 INFO L111 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2021-08-06 19:05:49,712 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 19:05:49,712 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 19:05:49,712 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-06 19:05:49,712 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 19:05:49,738 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,738 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,738 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,738 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,738 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,738 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,738 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,739 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,739 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,739 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,739 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,739 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,739 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,739 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,740 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,740 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,740 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,740 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,740 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,741 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,742 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,742 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,742 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,742 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,743 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,743 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,744 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,744 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,744 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,744 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,747 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,747 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,747 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,747 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,749 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,750 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,750 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,750 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,754 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,754 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,754 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,755 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,756 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,756 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:49,758 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-06 19:05:49,795 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 19:05:49,801 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-06 19:05:49,801 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-06 19:05:50,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 4774 states, 4088 states have (on average 2.0420743639921723) internal successors, (8348), 4773 states have internal predecessors, (8348), 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) [2021-08-06 19:05:50,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-06 19:05:50,251 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:05:50,252 INFO L512 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] [2021-08-06 19:05:50,253 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 19:05:50,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:05:50,256 INFO L82 PathProgramCache]: Analyzing trace with hash 895196563, now seen corresponding path program 1 times [2021-08-06 19:05:50,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:05:50,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699847293] [2021-08-06 19:05:50,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:05:50,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:05:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:05:50,511 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:05:50,515 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:05:50,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:05:50,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:05:50,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699847293] [2021-08-06 19:05:50,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699847293] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:05:50,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:05:50,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 19:05:50,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644396982] [2021-08-06 19:05:50,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 19:05:50,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:05:50,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 19:05:50,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 19:05:50,637 INFO L87 Difference]: Start difference. First operand has 4774 states, 4088 states have (on average 2.0420743639921723) internal successors, (8348), 4773 states have internal predecessors, (8348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-08-06 19:05:50,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:05:50,944 INFO L93 Difference]: Finished difference Result 7726 states and 14209 transitions. [2021-08-06 19:05:50,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-06 19:05:50,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2021-08-06 19:05:50,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:05:50,976 INFO L225 Difference]: With dead ends: 7726 [2021-08-06 19:05:50,976 INFO L226 Difference]: Without dead ends: 2785 [2021-08-06 19:05:50,977 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 131.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-06 19:05:50,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2021-08-06 19:05:51,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2265. [2021-08-06 19:05:51,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 2223 states have (on average 2.3049932523616734) internal successors, (5124), 2264 states have internal predecessors, (5124), 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) [2021-08-06 19:05:51,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 5124 transitions. [2021-08-06 19:05:51,090 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 5124 transitions. Word has length 48 [2021-08-06 19:05:51,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:05:51,091 INFO L470 AbstractCegarLoop]: Abstraction has 2265 states and 5124 transitions. [2021-08-06 19:05:51,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-08-06 19:05:51,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 5124 transitions. [2021-08-06 19:05:51,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-06 19:05:51,096 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:05:51,098 INFO L512 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] [2021-08-06 19:05:51,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-06 19:05:51,103 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 19:05:51,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:05:51,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1942883596, now seen corresponding path program 1 times [2021-08-06 19:05:51,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:05:51,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166507279] [2021-08-06 19:05:51,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:05:51,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:05:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:05:51,217 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:05:51,222 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:05:51,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:05:51,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:05:51,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166507279] [2021-08-06 19:05:51,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166507279] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:05:51,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:05:51,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 19:05:51,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910205092] [2021-08-06 19:05:51,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 19:05:51,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:05:51,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 19:05:51,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 19:05:51,282 INFO L87 Difference]: Start difference. First operand 2265 states and 5124 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-08-06 19:05:51,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:05:51,476 INFO L93 Difference]: Finished difference Result 3457 states and 8228 transitions. [2021-08-06 19:05:51,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-06 19:05:51,476 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 50 [2021-08-06 19:05:51,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:05:51,486 INFO L225 Difference]: With dead ends: 3457 [2021-08-06 19:05:51,486 INFO L226 Difference]: Without dead ends: 2613 [2021-08-06 19:05:51,486 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 138.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-06 19:05:51,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2021-08-06 19:05:51,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 2061. [2021-08-06 19:05:51,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2061 states, 2025 states have (on average 2.325925925925926) internal successors, (4710), 2060 states have internal predecessors, (4710), 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) [2021-08-06 19:05:51,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2061 states to 2061 states and 4710 transitions. [2021-08-06 19:05:51,544 INFO L78 Accepts]: Start accepts. Automaton has 2061 states and 4710 transitions. Word has length 50 [2021-08-06 19:05:51,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:05:51,545 INFO L470 AbstractCegarLoop]: Abstraction has 2061 states and 4710 transitions. [2021-08-06 19:05:51,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-08-06 19:05:51,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2061 states and 4710 transitions. [2021-08-06 19:05:51,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-06 19:05:51,548 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:05:51,548 INFO L512 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] [2021-08-06 19:05:51,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-06 19:05:51,548 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 19:05:51,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:05:51,549 INFO L82 PathProgramCache]: Analyzing trace with hash -603778187, now seen corresponding path program 1 times [2021-08-06 19:05:51,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:05:51,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146163692] [2021-08-06 19:05:51,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:05:51,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:05:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:05:51,615 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:05:51,622 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:05:51,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:05:51,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:05:51,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146163692] [2021-08-06 19:05:51,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146163692] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:05:51,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:05:51,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 19:05:51,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334668230] [2021-08-06 19:05:51,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 19:05:51,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:05:51,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 19:05:51,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 19:05:51,635 INFO L87 Difference]: Start difference. First operand 2061 states and 4710 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-08-06 19:05:51,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:05:51,715 INFO L93 Difference]: Finished difference Result 2633 states and 5787 transitions. [2021-08-06 19:05:51,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 19:05:51,715 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2021-08-06 19:05:51,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:05:51,722 INFO L225 Difference]: With dead ends: 2633 [2021-08-06 19:05:51,722 INFO L226 Difference]: Without dead ends: 1769 [2021-08-06 19:05:51,723 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 56.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 19:05:51,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2021-08-06 19:05:51,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1769. [2021-08-06 19:05:51,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1733 states have (on average 2.3237160992498556) internal successors, (4027), 1768 states have internal predecessors, (4027), 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) [2021-08-06 19:05:51,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 4027 transitions. [2021-08-06 19:05:51,756 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 4027 transitions. Word has length 52 [2021-08-06 19:05:51,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:05:51,757 INFO L470 AbstractCegarLoop]: Abstraction has 1769 states and 4027 transitions. [2021-08-06 19:05:51,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-08-06 19:05:51,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 4027 transitions. [2021-08-06 19:05:51,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-06 19:05:51,760 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:05:51,760 INFO L512 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] [2021-08-06 19:05:51,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-06 19:05:51,760 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 19:05:51,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:05:51,761 INFO L82 PathProgramCache]: Analyzing trace with hash 832327749, now seen corresponding path program 1 times [2021-08-06 19:05:51,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:05:51,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575898435] [2021-08-06 19:05:51,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:05:51,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:05:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:05:51,883 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:05:51,885 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:05:51,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:05:51,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:05:51,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575898435] [2021-08-06 19:05:51,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575898435] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:05:51,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:05:51,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 19:05:51,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618365041] [2021-08-06 19:05:51,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 19:05:51,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:05:51,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 19:05:51,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 19:05:51,900 INFO L87 Difference]: Start difference. First operand 1769 states and 4027 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-08-06 19:05:51,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:05:51,997 INFO L93 Difference]: Finished difference Result 1648 states and 3466 transitions. [2021-08-06 19:05:51,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 19:05:51,997 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-08-06 19:05:51,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:05:52,000 INFO L225 Difference]: With dead ends: 1648 [2021-08-06 19:05:52,001 INFO L226 Difference]: Without dead ends: 951 [2021-08-06 19:05:52,001 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 74.4ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-08-06 19:05:52,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2021-08-06 19:05:52,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 947. [2021-08-06 19:05:52,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 917 states have (on average 2.178844056706652) internal successors, (1998), 946 states have internal predecessors, (1998), 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) [2021-08-06 19:05:52,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1998 transitions. [2021-08-06 19:05:52,016 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1998 transitions. Word has length 53 [2021-08-06 19:05:52,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:05:52,018 INFO L470 AbstractCegarLoop]: Abstraction has 947 states and 1998 transitions. [2021-08-06 19:05:52,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-08-06 19:05:52,018 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1998 transitions. [2021-08-06 19:05:52,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-06 19:05:52,022 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:05:52,023 INFO L512 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] [2021-08-06 19:05:52,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-06 19:05:52,023 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 19:05:52,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:05:52,030 INFO L82 PathProgramCache]: Analyzing trace with hash 997829572, now seen corresponding path program 1 times [2021-08-06 19:05:52,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:05:52,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193730134] [2021-08-06 19:05:52,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:05:52,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:05:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:05:52,150 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:05:52,151 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:05:52,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:05:52,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:05:52,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193730134] [2021-08-06 19:05:52,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193730134] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:05:52,166 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:05:52,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 19:05:52,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233041249] [2021-08-06 19:05:52,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 19:05:52,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:05:52,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 19:05:52,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-06 19:05:52,168 INFO L87 Difference]: Start difference. First operand 947 states and 1998 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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) [2021-08-06 19:05:52,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:05:52,271 INFO L93 Difference]: Finished difference Result 641 states and 1241 transitions. [2021-08-06 19:05:52,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 19:05:52,271 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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 55 [2021-08-06 19:05:52,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:05:52,273 INFO L225 Difference]: With dead ends: 641 [2021-08-06 19:05:52,273 INFO L226 Difference]: Without dead ends: 286 [2021-08-06 19:05:52,273 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 82.8ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-08-06 19:05:52,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-08-06 19:05:52,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 270. [2021-08-06 19:05:52,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 261 states have (on average 1.8314176245210727) internal successors, (478), 269 states have internal predecessors, (478), 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) [2021-08-06 19:05:52,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 478 transitions. [2021-08-06 19:05:52,277 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 478 transitions. Word has length 55 [2021-08-06 19:05:52,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:05:52,278 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 478 transitions. [2021-08-06 19:05:52,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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) [2021-08-06 19:05:52,278 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 478 transitions. [2021-08-06 19:05:52,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-06 19:05:52,279 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:05:52,279 INFO L512 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] [2021-08-06 19:05:52,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-06 19:05:52,279 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 19:05:52,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:05:52,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1114972038, now seen corresponding path program 1 times [2021-08-06 19:05:52,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:05:52,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475677402] [2021-08-06 19:05:52,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:05:52,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:05:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:05:52,321 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:05:52,322 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:05:52,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:05:52,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:05:52,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475677402] [2021-08-06 19:05:52,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475677402] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:05:52,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:05:52,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 19:05:52,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375097877] [2021-08-06 19:05:52,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 19:05:52,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:05:52,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 19:05:52,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-06 19:05:52,372 INFO L87 Difference]: Start difference. First operand 270 states and 478 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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) [2021-08-06 19:05:52,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:05:52,431 INFO L93 Difference]: Finished difference Result 420 states and 805 transitions. [2021-08-06 19:05:52,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 19:05:52,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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 59 [2021-08-06 19:05:52,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:05:52,433 INFO L225 Difference]: With dead ends: 420 [2021-08-06 19:05:52,433 INFO L226 Difference]: Without dead ends: 279 [2021-08-06 19:05:52,433 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 61.6ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-08-06 19:05:52,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-08-06 19:05:52,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 263. [2021-08-06 19:05:52,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 254 states have (on average 1.8385826771653544) internal successors, (467), 262 states have internal predecessors, (467), 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) [2021-08-06 19:05:52,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 467 transitions. [2021-08-06 19:05:52,440 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 467 transitions. Word has length 59 [2021-08-06 19:05:52,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:05:52,440 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 467 transitions. [2021-08-06 19:05:52,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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) [2021-08-06 19:05:52,440 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 467 transitions. [2021-08-06 19:05:52,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-06 19:05:52,440 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:05:52,440 INFO L512 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] [2021-08-06 19:05:52,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-06 19:05:52,441 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 19:05:52,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:05:52,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1147615920, now seen corresponding path program 2 times [2021-08-06 19:05:52,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:05:52,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001694943] [2021-08-06 19:05:52,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:05:52,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:05:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:05:52,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:05:52,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:05:52,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001694943] [2021-08-06 19:05:52,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001694943] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:05:52,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:05:52,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 19:05:52,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873257903] [2021-08-06 19:05:52,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 19:05:52,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:05:52,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 19:05:52,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-06 19:05:52,546 INFO L87 Difference]: Start difference. First operand 263 states and 467 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2021-08-06 19:05:52,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:05:52,592 INFO L93 Difference]: Finished difference Result 227 states and 407 transitions. [2021-08-06 19:05:52,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 19:05:52,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2021-08-06 19:05:52,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:05:52,593 INFO L225 Difference]: With dead ends: 227 [2021-08-06 19:05:52,593 INFO L226 Difference]: Without dead ends: 0 [2021-08-06 19:05:52,593 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-06 19:05:52,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-06 19:05:52,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-06 19:05:52,594 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) [2021-08-06 19:05:52,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-06 19:05:52,594 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-08-06 19:05:52,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:05:52,594 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-06 19:05:52,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2021-08-06 19:05:52,594 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-06 19:05:52,594 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 19:05:52,596 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-06 19:05:52,596 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-06 19:05:52,596 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-06 19:05:52,596 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-06 19:05:52,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-06 19:05:52,599 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-06 19:05:52,599 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-06 19:05:52,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 07:05:52 BasicIcfg [2021-08-06 19:05:52,600 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-06 19:05:52,601 INFO L168 Benchmark]: Toolchain (without parser) took 3724.22 ms. Allocated memory was 184.5 MB in the beginning and 252.7 MB in the end (delta: 68.2 MB). Free memory was 147.7 MB in the beginning and 97.2 MB in the end (delta: 50.5 MB). Peak memory consumption was 120.2 MB. Max. memory is 8.0 GB. [2021-08-06 19:05:52,601 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 184.5 MB. Free memory is still 166.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 19:05:52,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.69 ms. Allocated memory is still 184.5 MB. Free memory was 147.6 MB in the beginning and 157.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 8.0 GB. [2021-08-06 19:05:52,602 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.78 ms. Allocated memory is still 184.5 MB. Free memory was 157.8 MB in the beginning and 156.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-06 19:05:52,602 INFO L168 Benchmark]: Boogie Preprocessor took 13.58 ms. Allocated memory is still 184.5 MB. Free memory was 156.2 MB in the beginning and 154.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-06 19:05:52,602 INFO L168 Benchmark]: RCFGBuilder took 349.63 ms. Allocated memory is still 184.5 MB. Free memory was 154.7 MB in the beginning and 131.1 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-08-06 19:05:52,602 INFO L168 Benchmark]: TraceAbstraction took 2898.57 ms. Allocated memory was 184.5 MB in the beginning and 252.7 MB in the end (delta: 68.2 MB). Free memory was 130.6 MB in the beginning and 97.2 MB in the end (delta: 33.3 MB). Peak memory consumption was 102.5 MB. Max. memory is 8.0 GB. [2021-08-06 19:05:52,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 184.5 MB. Free memory is still 166.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 429.69 ms. Allocated memory is still 184.5 MB. Free memory was 147.6 MB in the beginning and 157.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.78 ms. Allocated memory is still 184.5 MB. Free memory was 157.8 MB in the beginning and 156.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.58 ms. Allocated memory is still 184.5 MB. Free memory was 156.2 MB in the beginning and 154.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 349.63 ms. Allocated memory is still 184.5 MB. Free memory was 154.7 MB in the beginning and 131.1 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2898.57 ms. Allocated memory was 184.5 MB in the beginning and 252.7 MB in the end (delta: 68.2 MB). Free memory was 130.6 MB in the beginning and 97.2 MB in the end (delta: 33.3 MB). Peak memory consumption was 102.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15841, positive: 15204, positive conditional: 15204, positive unconditional: 0, negative: 637, negative conditional: 637, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15768, positive: 15204, positive conditional: 0, positive unconditional: 15204, negative: 564, negative conditional: 0, negative unconditional: 564, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 611, positive: 595, positive conditional: 0, positive unconditional: 595, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 611, positive: 591, positive conditional: 0, positive unconditional: 591, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15768, positive: 14609, positive conditional: 0, positive unconditional: 14609, negative: 548, negative conditional: 0, negative unconditional: 548, unknown: 611, unknown conditional: 0, unknown unconditional: 611] , Statistics on independence cache: Total cache size (in pairs): 611, Positive cache size: 595, Positive conditional cache size: 0, Positive unconditional cache size: 595, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Independence queries for same thread: 73 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 104 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2804.8ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 45.6ms, AutomataDifference: 967.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 419.4ms, PartialOrderReductionTime: 403.2ms, HoareTripleCheckerStatistics: 628 SDtfs, 915 SDslu, 2052 SDs, 0 SdLazy, 297 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 225.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 601.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4774occurred in iteration=0, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 218.2ms AutomataMinimizationTime, 7 MinimizatonAttempts, 1108 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.7ms SsaConstructionTime, 157.2ms SatisfiabilityAnalysisTime, 820.5ms InterpolantComputationTime, 376 NumberOfCodeBlocks, 376 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 369 ConstructedInterpolants, 0 QuantifiedInterpolants, 1431 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-06 19:05:52,633 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...