/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/safe023_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 13:50:32,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 13:50:32,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 13:50:32,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-06 13:50:32,853 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 [2021-08-06 13:50:32,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 13:50:32,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 13:50:32,868 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-06 13:50:32,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-06 13:50:32,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 13:50:32,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 13:50:32,870 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 13:50:32,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 13:50:32,870 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 13:50:32,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 13:50:32,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 13:50:32,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 13:50:32,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 13:50:32,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 13:50:32,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 13:50:32,871 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 13:50:32,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 13:50:32,871 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 13:50:32,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 13:50:32,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 13:50:32,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 13:50:32,872 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 13:50:32,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 13:50:32,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 13:50:32,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 13:50:32,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 13:50:32,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 13:50:32,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 13:50:32,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 13:50:32,873 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 13:50:32,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 13:50:32,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 13:50:33,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 13:50:33,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 13:50:33,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 13:50:33,158 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-06 13:50:33,160 INFO L275 PluginConnector]: CDTParser initialized [2021-08-06 13:50:33,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2021-08-06 13:50:33,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/066f5a554/7ba0d63a8ea747d78577ce9964e1bc0e/FLAG1c468e7a1 [2021-08-06 13:50:33,977 INFO L306 CDTParser]: Found 1 translation units. [2021-08-06 13:50:33,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2021-08-06 13:50:33,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/066f5a554/7ba0d63a8ea747d78577ce9964e1bc0e/FLAG1c468e7a1 [2021-08-06 13:50:34,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/066f5a554/7ba0d63a8ea747d78577ce9964e1bc0e [2021-08-06 13:50:34,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 13:50:34,243 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-06 13:50:34,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-06 13:50:34,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-06 13:50:34,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-06 13:50:34,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 01:50:34" (1/1) ... [2021-08-06 13:50:34,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4e7dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:50:34, skipping insertion in model container [2021-08-06 13:50:34,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 01:50:34" (1/1) ... [2021-08-06 13:50:34,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-06 13:50:34,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-06 13:50:34,423 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/safe023_tso.opt.i[949,962] [2021-08-06 13:50:34,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 13:50:34,583 INFO L203 MainTranslator]: Completed pre-run [2021-08-06 13:50:34,592 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/safe023_tso.opt.i[949,962] [2021-08-06 13:50:34,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 13:50:34,655 INFO L208 MainTranslator]: Completed translation [2021-08-06 13:50:34,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:50:34 WrapperNode [2021-08-06 13:50:34,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-06 13:50:34,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 13:50:34,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 13:50:34,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 13:50:34,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:50:34" (1/1) ... [2021-08-06 13:50:34,686 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:50:34" (1/1) ... [2021-08-06 13:50:34,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 13:50:34,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 13:50:34,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 13:50:34,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 13:50:34,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:50:34" (1/1) ... [2021-08-06 13:50:34,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:50:34" (1/1) ... [2021-08-06 13:50:34,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:50:34" (1/1) ... [2021-08-06 13:50:34,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:50:34" (1/1) ... [2021-08-06 13:50:34,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:50:34" (1/1) ... [2021-08-06 13:50:34,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:50:34" (1/1) ... [2021-08-06 13:50:34,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:50:34" (1/1) ... [2021-08-06 13:50:34,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 13:50:34,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 13:50:34,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 13:50:34,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 13:50:34,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:50:34" (1/1) ... [2021-08-06 13:50:34,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 13:50:34,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 13:50:34,774 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 13:50:34,795 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 13:50:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-06 13:50:34,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-06 13:50:34,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-06 13:50:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-06 13:50:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-06 13:50:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-06 13:50:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-06 13:50:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-06 13:50:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-06 13:50:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-06 13:50:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-06 13:50:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-06 13:50:34,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 13:50:34,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 13:50:34,811 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 13:50:35,095 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 13:50:35,095 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-06 13:50:35,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 01:50:35 BoogieIcfgContainer [2021-08-06 13:50:35,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 13:50:35,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 13:50:35,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 13:50:35,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 13:50:35,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.08 01:50:34" (1/3) ... [2021-08-06 13:50:35,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e0ecc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 01:50:35, skipping insertion in model container [2021-08-06 13:50:35,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:50:34" (2/3) ... [2021-08-06 13:50:35,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e0ecc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 01:50:35, skipping insertion in model container [2021-08-06 13:50:35,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 01:50:35" (3/3) ... [2021-08-06 13:50:35,102 INFO L111 eAbstractionObserver]: Analyzing ICFG safe023_tso.opt.i [2021-08-06 13:50:35,105 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 13:50:35,105 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 13:50:35,106 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-06 13:50:35,106 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 13:50:35,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,131 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,131 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,131 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,133 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,135 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,135 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,135 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,135 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,136 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,136 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,136 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,137 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,141 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,141 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,141 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,142 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,142 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,142 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,142 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,142 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,143 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,143 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,143 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,143 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,143 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,143 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,143 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,143 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,146 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,146 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,146 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,146 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,150 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,150 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,150 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,150 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,151 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,152 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:50:35,155 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-06 13:50:35,195 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 13:50:35,201 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 13:50:35,202 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-06 13:50:35,213 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-08-06 13:50:35,375 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5559 states, 5558 states have (on average 3.4938826916156893) internal successors, (19419), 5558 states have internal predecessors, (19419), 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 13:50:35,389 INFO L276 IsEmpty]: Start isEmpty. Operand has 5559 states, 5558 states have (on average 3.4938826916156893) internal successors, (19419), 5558 states have internal predecessors, (19419), 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 13:50:35,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-08-06 13:50:35,440 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:50:35,441 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] [2021-08-06 13:50:35,442 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 13:50:35,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:50:35,446 INFO L82 PathProgramCache]: Analyzing trace with hash -206144659, now seen corresponding path program 1 times [2021-08-06 13:50:35,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:50:35,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216219548] [2021-08-06 13:50:35,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:50:35,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:50:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:50:35,909 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 13:50:35,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:50:35,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216219548] [2021-08-06 13:50:35,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216219548] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:50:35,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:50:35,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 13:50:35,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296237030] [2021-08-06 13:50:35,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 13:50:35,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:50:35,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 13:50:35,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 13:50:35,951 INFO L87 Difference]: Start difference. First operand has 5559 states, 5558 states have (on average 3.4938826916156893) internal successors, (19419), 5558 states have internal predecessors, (19419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 13:50:36,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:50:36,332 INFO L93 Difference]: Finished difference Result 9668 states and 32692 transitions. [2021-08-06 13:50:36,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-06 13:50:36,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2021-08-06 13:50:36,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:50:36,407 INFO L225 Difference]: With dead ends: 9668 [2021-08-06 13:50:36,407 INFO L226 Difference]: Without dead ends: 5758 [2021-08-06 13:50:36,408 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 221.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-06 13:50:36,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2021-08-06 13:50:36,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 4708. [2021-08-06 13:50:36,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4708 states, 4707 states have (on average 3.2345442957297643) internal successors, (15225), 4707 states have internal predecessors, (15225), 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 13:50:36,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4708 states to 4708 states and 15225 transitions. [2021-08-06 13:50:36,607 INFO L78 Accepts]: Start accepts. Automaton has 4708 states and 15225 transitions. Word has length 49 [2021-08-06 13:50:36,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:50:36,609 INFO L470 AbstractCegarLoop]: Abstraction has 4708 states and 15225 transitions. [2021-08-06 13:50:36,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 13:50:36,610 INFO L276 IsEmpty]: Start isEmpty. Operand 4708 states and 15225 transitions. [2021-08-06 13:50:36,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-06 13:50:36,654 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:50:36,655 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] [2021-08-06 13:50:36,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-06 13:50:36,655 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 13:50:36,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:50:36,656 INFO L82 PathProgramCache]: Analyzing trace with hash 595593868, now seen corresponding path program 1 times [2021-08-06 13:50:36,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:50:36,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504927881] [2021-08-06 13:50:36,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:50:36,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:50:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:50:36,810 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 13:50:36,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:50:36,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504927881] [2021-08-06 13:50:36,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504927881] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:50:36,811 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:50:36,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 13:50:36,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476014103] [2021-08-06 13:50:36,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 13:50:36,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:50:36,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 13:50:36,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-06 13:50:36,813 INFO L87 Difference]: Start difference. First operand 4708 states and 15225 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 13:50:37,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:50:37,165 INFO L93 Difference]: Finished difference Result 7813 states and 24949 transitions. [2021-08-06 13:50:37,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-06 13:50:37,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2021-08-06 13:50:37,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:50:37,196 INFO L225 Difference]: With dead ends: 7813 [2021-08-06 13:50:37,197 INFO L226 Difference]: Without dead ends: 5853 [2021-08-06 13:50:37,197 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 211.3ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-08-06 13:50:37,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5853 states. [2021-08-06 13:50:37,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5853 to 4208. [2021-08-06 13:50:37,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4208 states, 4207 states have (on average 3.1839790824815783) internal successors, (13395), 4207 states have internal predecessors, (13395), 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 13:50:37,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4208 states to 4208 states and 13395 transitions. [2021-08-06 13:50:37,337 INFO L78 Accepts]: Start accepts. Automaton has 4208 states and 13395 transitions. Word has length 51 [2021-08-06 13:50:37,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:50:37,337 INFO L470 AbstractCegarLoop]: Abstraction has 4208 states and 13395 transitions. [2021-08-06 13:50:37,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 13:50:37,338 INFO L276 IsEmpty]: Start isEmpty. Operand 4208 states and 13395 transitions. [2021-08-06 13:50:37,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-06 13:50:37,349 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:50:37,349 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 13:50:37,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-06 13:50:37,349 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 13:50:37,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:50:37,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1655455759, now seen corresponding path program 1 times [2021-08-06 13:50:37,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:50:37,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172089036] [2021-08-06 13:50:37,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:50:37,351 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:50:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:50:37,467 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 13:50:37,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:50:37,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172089036] [2021-08-06 13:50:37,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172089036] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:50:37,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:50:37,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 13:50:37,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497107312] [2021-08-06 13:50:37,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 13:50:37,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:50:37,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 13:50:37,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 13:50:37,469 INFO L87 Difference]: Start difference. First operand 4208 states and 13395 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 13:50:37,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:50:37,653 INFO L93 Difference]: Finished difference Result 5462 states and 17252 transitions. [2021-08-06 13:50:37,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 13:50:37,653 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 13:50:37,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:50:37,683 INFO L225 Difference]: With dead ends: 5462 [2021-08-06 13:50:37,683 INFO L226 Difference]: Without dead ends: 4162 [2021-08-06 13:50:37,683 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 150.6ms TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-08-06 13:50:37,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4162 states. [2021-08-06 13:50:37,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4162 to 3158. [2021-08-06 13:50:37,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3158 states, 3157 states have (on average 3.165663604687995) internal successors, (9994), 3157 states have internal predecessors, (9994), 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 13:50:37,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3158 states to 3158 states and 9994 transitions. [2021-08-06 13:50:37,759 INFO L78 Accepts]: Start accepts. Automaton has 3158 states and 9994 transitions. Word has length 53 [2021-08-06 13:50:37,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:50:37,760 INFO L470 AbstractCegarLoop]: Abstraction has 3158 states and 9994 transitions. [2021-08-06 13:50:37,760 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 13:50:37,760 INFO L276 IsEmpty]: Start isEmpty. Operand 3158 states and 9994 transitions. [2021-08-06 13:50:37,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-06 13:50:37,766 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:50:37,766 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] [2021-08-06 13:50:37,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-06 13:50:37,767 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 13:50:37,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:50:37,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1792194162, now seen corresponding path program 1 times [2021-08-06 13:50:37,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:50:37,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695275746] [2021-08-06 13:50:37,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:50:37,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:50:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:50:37,896 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 13:50:37,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:50:37,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695275746] [2021-08-06 13:50:37,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695275746] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:50:37,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:50:37,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 13:50:37,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466044892] [2021-08-06 13:50:37,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 13:50:37,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:50:37,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 13:50:37,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-06 13:50:37,898 INFO L87 Difference]: Start difference. First operand 3158 states and 9994 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:50:38,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:50:38,013 INFO L93 Difference]: Finished difference Result 3566 states and 11148 transitions. [2021-08-06 13:50:38,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 13:50:38,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-08-06 13:50:38,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:50:38,018 INFO L225 Difference]: With dead ends: 3566 [2021-08-06 13:50:38,018 INFO L226 Difference]: Without dead ends: 1806 [2021-08-06 13:50:38,019 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 98.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-06 13:50:38,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1806 states. [2021-08-06 13:50:38,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1806 to 1806. [2021-08-06 13:50:38,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1806 states, 1805 states have (on average 3.001662049861496) internal successors, (5418), 1805 states have internal predecessors, (5418), 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 13:50:38,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 5418 transitions. [2021-08-06 13:50:38,071 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 5418 transitions. Word has length 56 [2021-08-06 13:50:38,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:50:38,071 INFO L470 AbstractCegarLoop]: Abstraction has 1806 states and 5418 transitions. [2021-08-06 13:50:38,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:50:38,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 5418 transitions. [2021-08-06 13:50:38,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-06 13:50:38,074 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:50:38,074 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] [2021-08-06 13:50:38,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-06 13:50:38,074 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 13:50:38,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:50:38,075 INFO L82 PathProgramCache]: Analyzing trace with hash -918252882, now seen corresponding path program 1 times [2021-08-06 13:50:38,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:50:38,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332411767] [2021-08-06 13:50:38,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:50:38,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:50:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:50:38,153 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 13:50:38,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:50:38,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332411767] [2021-08-06 13:50:38,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332411767] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:50:38,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:50:38,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 13:50:38,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537224747] [2021-08-06 13:50:38,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 13:50:38,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:50:38,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 13:50:38,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 13:50:38,154 INFO L87 Difference]: Start difference. First operand 1806 states and 5418 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 13:50:38,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:50:38,217 INFO L93 Difference]: Finished difference Result 2829 states and 8487 transitions. [2021-08-06 13:50:38,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-06 13:50:38,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 57 [2021-08-06 13:50:38,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:50:38,222 INFO L225 Difference]: With dead ends: 2829 [2021-08-06 13:50:38,222 INFO L226 Difference]: Without dead ends: 1576 [2021-08-06 13:50:38,223 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-06 13:50:38,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-08-06 13:50:38,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2021-08-06 13:50:38,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 2.9638095238095237) internal successors, (4668), 1575 states have internal predecessors, (4668), 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 13:50:38,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 4668 transitions. [2021-08-06 13:50:38,255 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 4668 transitions. Word has length 57 [2021-08-06 13:50:38,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:50:38,255 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 4668 transitions. [2021-08-06 13:50:38,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 13:50:38,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 4668 transitions. [2021-08-06 13:50:38,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-06 13:50:38,258 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:50:38,258 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] [2021-08-06 13:50:38,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-06 13:50:38,259 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 13:50:38,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:50:38,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1179616686, now seen corresponding path program 2 times [2021-08-06 13:50:38,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:50:38,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021279570] [2021-08-06 13:50:38,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:50:38,259 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:50:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:50:38,360 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 13:50:38,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:50:38,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021279570] [2021-08-06 13:50:38,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021279570] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:50:38,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:50:38,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 13:50:38,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117914009] [2021-08-06 13:50:38,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 13:50:38,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:50:38,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 13:50:38,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 13:50:38,362 INFO L87 Difference]: Start difference. First operand 1576 states and 4668 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 13:50:38,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:50:38,437 INFO L93 Difference]: Finished difference Result 1797 states and 5273 transitions. [2021-08-06 13:50:38,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 13:50:38,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 57 [2021-08-06 13:50:38,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:50:38,441 INFO L225 Difference]: With dead ends: 1797 [2021-08-06 13:50:38,441 INFO L226 Difference]: Without dead ends: 1421 [2021-08-06 13:50:38,442 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 56.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 13:50:38,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2021-08-06 13:50:38,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1421. [2021-08-06 13:50:38,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1420 states have (on average 2.9140845070422534) internal successors, (4138), 1420 states have internal predecessors, (4138), 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 13:50:38,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 4138 transitions. [2021-08-06 13:50:38,465 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 4138 transitions. Word has length 57 [2021-08-06 13:50:38,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:50:38,465 INFO L470 AbstractCegarLoop]: Abstraction has 1421 states and 4138 transitions. [2021-08-06 13:50:38,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 13:50:38,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 4138 transitions. [2021-08-06 13:50:38,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-06 13:50:38,468 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:50:38,468 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] [2021-08-06 13:50:38,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-06 13:50:38,468 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 13:50:38,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:50:38,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1878635497, now seen corresponding path program 1 times [2021-08-06 13:50:38,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:50:38,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634809606] [2021-08-06 13:50:38,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:50:38,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:50:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:50:38,557 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 13:50:38,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:50:38,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634809606] [2021-08-06 13:50:38,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634809606] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:50:38,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:50:38,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 13:50:38,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38150253] [2021-08-06 13:50:38,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 13:50:38,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:50:38,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 13:50:38,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 13:50:38,558 INFO L87 Difference]: Start difference. First operand 1421 states and 4138 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:50:38,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:50:38,647 INFO L93 Difference]: Finished difference Result 1307 states and 3699 transitions. [2021-08-06 13:50:38,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 13:50:38,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-08-06 13:50:38,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:50:38,650 INFO L225 Difference]: With dead ends: 1307 [2021-08-06 13:50:38,650 INFO L226 Difference]: Without dead ends: 1031 [2021-08-06 13:50:38,651 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 71.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-08-06 13:50:38,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2021-08-06 13:50:38,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1031. [2021-08-06 13:50:38,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 1030 states have (on average 2.774757281553398) internal successors, (2858), 1030 states have internal predecessors, (2858), 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 13:50:38,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 2858 transitions. [2021-08-06 13:50:38,666 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 2858 transitions. Word has length 58 [2021-08-06 13:50:38,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:50:38,667 INFO L470 AbstractCegarLoop]: Abstraction has 1031 states and 2858 transitions. [2021-08-06 13:50:38,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:50:38,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 2858 transitions. [2021-08-06 13:50:38,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-06 13:50:38,669 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:50:38,669 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 13:50:38,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-06 13:50:38,669 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:50:38,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:50:38,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1514318356, now seen corresponding path program 1 times [2021-08-06 13:50:38,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:50:38,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138058147] [2021-08-06 13:50:38,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:50:38,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:50:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:50:38,774 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 13:50:38,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:50:38,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138058147] [2021-08-06 13:50:38,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138058147] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:50:38,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:50:38,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 13:50:38,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969860147] [2021-08-06 13:50:38,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 13:50:38,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:50:38,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 13:50:38,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-06 13:50:38,777 INFO L87 Difference]: Start difference. First operand 1031 states and 2858 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 13:50:38,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:50:38,841 INFO L93 Difference]: Finished difference Result 734 states and 1967 transitions. [2021-08-06 13:50:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 13:50:38,841 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 13:50:38,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:50:38,842 INFO L225 Difference]: With dead ends: 734 [2021-08-06 13:50:38,842 INFO L226 Difference]: Without dead ends: 0 [2021-08-06 13:50:38,842 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 67.1ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-08-06 13:50:38,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-06 13:50:38,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-06 13:50:38,842 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 13:50:38,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-06 13:50:38,842 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-08-06 13:50:38,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:50:38,842 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-06 13:50:38,842 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 13:50:38,843 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-06 13:50:38,843 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 13:50:38,844 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-06 13:50:38,845 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-06 13:50:38,845 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-06 13:50:38,845 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-06 13:50:38,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-06 13:50:38,849 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-06 13:50:38,849 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-06 13:50:38,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 01:50:38 BasicIcfg [2021-08-06 13:50:38,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-06 13:50:38,851 INFO L168 Benchmark]: Toolchain (without parser) took 4608.28 ms. Allocated memory was 189.8 MB in the beginning and 328.2 MB in the end (delta: 138.4 MB). Free memory was 153.7 MB in the beginning and 203.1 MB in the end (delta: -49.4 MB). Peak memory consumption was 89.9 MB. Max. memory is 8.0 GB. [2021-08-06 13:50:38,851 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 189.8 MB. Free memory is still 171.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 13:50:38,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.59 ms. Allocated memory is still 189.8 MB. Free memory was 153.5 MB in the beginning and 163.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-08-06 13:50:38,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.02 ms. Allocated memory is still 189.8 MB. Free memory was 163.0 MB in the beginning and 161.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-06 13:50:38,857 INFO L168 Benchmark]: Boogie Preprocessor took 27.06 ms. Allocated memory is still 189.8 MB. Free memory was 161.0 MB in the beginning and 159.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-06 13:50:38,857 INFO L168 Benchmark]: RCFGBuilder took 357.91 ms. Allocated memory is still 189.8 MB. Free memory was 159.3 MB in the beginning and 135.7 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-08-06 13:50:38,857 INFO L168 Benchmark]: TraceAbstraction took 3752.42 ms. Allocated memory was 189.8 MB in the beginning and 328.2 MB in the end (delta: 138.4 MB). Free memory was 135.2 MB in the beginning and 203.1 MB in the end (delta: -67.9 MB). Peak memory consumption was 71.5 MB. Max. memory is 8.0 GB. [2021-08-06 13:50:38,858 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 189.8 MB. Free memory is still 171.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 411.59 ms. Allocated memory is still 189.8 MB. Free memory was 153.5 MB in the beginning and 163.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 54.02 ms. Allocated memory is still 189.8 MB. Free memory was 163.0 MB in the beginning and 161.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.06 ms. Allocated memory is still 189.8 MB. Free memory was 161.0 MB in the beginning and 159.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 357.91 ms. Allocated memory is still 189.8 MB. Free memory was 159.3 MB in the beginning and 135.7 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3752.42 ms. Allocated memory was 189.8 MB in the beginning and 328.2 MB in the end (delta: 138.4 MB). Free memory was 135.2 MB in the beginning and 203.1 MB in the end (delta: -67.9 MB). Peak memory consumption was 71.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 107 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3653.6ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 136.4ms, AutomataDifference: 1522.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 173.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 781 SDtfs, 1455 SDslu, 2611 SDs, 0 SdLazy, 326 SolverSat, 81 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 246.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 919.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5559occurred in iteration=0, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 527.0ms AutomataMinimizationTime, 8 MinimizatonAttempts, 3699 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.3ms SsaConstructionTime, 156.7ms SatisfiabilityAnalysisTime, 957.2ms InterpolantComputationTime, 440 NumberOfCodeBlocks, 440 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 432 ConstructedInterpolants, 0 QuantifiedInterpolants, 1850 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-06 13:50:38,886 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...