/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 00:16:43,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 00:16:43,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 00:16:43,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 00:16:43,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 00:16:43,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 00:16:43,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 00:16:43,820 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 [2021-06-05 00:16:43,852 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 00:16:43,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 00:16:43,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 00:16:43,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 00:16:43,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 00:16:43,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 00:16:43,854 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 00:16:43,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 00:16:43,854 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 00:16:43,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 00:16:43,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 00:16:43,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 00:16:43,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 00:16:43,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 00:16:43,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 00:16:43,855 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 00:16:43,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 00:16:43,856 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 00:16:43,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 00:16:43,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 00:16:43,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 00:16:43,856 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 00:16:43,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 00:16:43,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:16:43,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 00:16:43,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 00:16:43,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 00:16:43,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 00:16:43,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 00:16:43,857 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 00:16:43,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 00:16:43,858 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 00:16:44,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 00:16:44,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 00:16:44,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 00:16:44,179 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 00:16:44,180 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 00:16:44,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-06-05 00:16:44,238 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e7a306f0/8e1fa540923b4bc7806b08b6f65e3eb2/FLAGe49bb14a5 [2021-06-05 00:16:44,817 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 00:16:44,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-06-05 00:16:44,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e7a306f0/8e1fa540923b4bc7806b08b6f65e3eb2/FLAGe49bb14a5 [2021-06-05 00:16:45,234 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e7a306f0/8e1fa540923b4bc7806b08b6f65e3eb2 [2021-06-05 00:16:45,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 00:16:45,238 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 00:16:45,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 00:16:45,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 00:16:45,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 00:16:45,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:16:45" (1/1) ... [2021-06-05 00:16:45,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fcb38ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:45, skipping insertion in model container [2021-06-05 00:16:45,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:16:45" (1/1) ... [2021-06-05 00:16:45,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 00:16:45,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 00:16:45,410 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/safe027_tso.oepc.i[950,963] [2021-06-05 00:16:45,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:16:45,602 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 00:16:45,613 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/safe027_tso.oepc.i[950,963] [2021-06-05 00:16:45,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:16:45,696 INFO L208 MainTranslator]: Completed translation [2021-06-05 00:16:45,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:45 WrapperNode [2021-06-05 00:16:45,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 00:16:45,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 00:16:45,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 00:16:45,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 00:16:45,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:45" (1/1) ... [2021-06-05 00:16:45,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:45" (1/1) ... [2021-06-05 00:16:45,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 00:16:45,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 00:16:45,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 00:16:45,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 00:16:45,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:45" (1/1) ... [2021-06-05 00:16:45,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:45" (1/1) ... [2021-06-05 00:16:45,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:45" (1/1) ... [2021-06-05 00:16:45,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:45" (1/1) ... [2021-06-05 00:16:45,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:45" (1/1) ... [2021-06-05 00:16:45,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:45" (1/1) ... [2021-06-05 00:16:45,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:45" (1/1) ... [2021-06-05 00:16:45,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 00:16:45,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 00:16:45,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 00:16:45,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 00:16:45,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:16:45,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 00:16:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 00:16:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 00:16:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 00:16:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 00:16:45,826 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 00:16:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 00:16:45,826 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 00:16:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 00:16:45,827 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 00:16:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-05 00:16:45,827 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-05 00:16:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 00:16:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 00:16:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 00:16:45,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 00:16:45,829 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 00:16:46,239 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 00:16:46,239 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 00:16:46,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:16:46 BoogieIcfgContainer [2021-06-05 00:16:46,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 00:16:46,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 00:16:46,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 00:16:46,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 00:16:46,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:16:45" (1/3) ... [2021-06-05 00:16:46,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1653f4af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:16:46, skipping insertion in model container [2021-06-05 00:16:46,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:45" (2/3) ... [2021-06-05 00:16:46,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1653f4af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:16:46, skipping insertion in model container [2021-06-05 00:16:46,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:16:46" (3/3) ... [2021-06-05 00:16:46,248 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2021-06-05 00:16:46,253 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 00:16:46,253 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 00:16:46,253 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 00:16:46,255 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 00:16:46,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,301 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,301 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,301 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,301 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,303 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,303 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,304 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,304 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,305 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,305 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,306 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,306 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,306 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,306 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,306 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,307 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,308 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,308 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,308 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,308 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,308 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,308 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,308 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,309 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,310 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,310 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,310 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,310 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,313 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,314 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,314 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,314 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,318 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,319 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,319 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,319 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,321 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,322 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,324 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,324 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,324 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,324 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:46,326 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 00:16:46,345 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 00:16:46,374 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 00:16:46,374 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 00:16:46,374 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 00:16:46,375 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 00:16:46,375 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 00:16:46,375 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 00:16:46,375 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 00:16:46,375 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 00:16:46,390 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 110 places, 99 transitions, 218 flow [2021-06-05 00:16:51,789 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 51816 states, 51814 states have (on average 4.3685876404060675) internal successors, (226354), 51815 states have internal predecessors, (226354), 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) [2021-06-05 00:16:51,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 51816 states, 51814 states have (on average 4.3685876404060675) internal successors, (226354), 51815 states have internal predecessors, (226354), 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) [2021-06-05 00:16:52,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 00:16:52,085 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:52,085 INFO L521 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] [2021-06-05 00:16:52,086 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:52,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:52,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1244979450, now seen corresponding path program 1 times [2021-06-05 00:16:52,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:52,098 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255203277] [2021-06-05 00:16:52,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:52,602 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2021-06-05 00:16:52,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:16:52,688 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:52,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255203277] [2021-06-05 00:16:52,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255203277] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:52,690 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:52,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:16:52,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042853183] [2021-06-05 00:16:52,698 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:16:52,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:52,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:16:52,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:16:52,790 INFO L87 Difference]: Start difference. First operand has 51816 states, 51814 states have (on average 4.3685876404060675) internal successors, (226354), 51815 states have internal predecessors, (226354), 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 8.142857142857142) internal successors, (57), 7 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) [2021-06-05 00:16:53,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:53,963 INFO L93 Difference]: Finished difference Result 69204 states and 296446 transitions. [2021-06-05 00:16:53,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:16:53,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 [2021-06-05 00:16:53,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:54,267 INFO L225 Difference]: With dead ends: 69204 [2021-06-05 00:16:54,267 INFO L226 Difference]: Without dead ends: 24096 [2021-06-05 00:16:54,269 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 245.1ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 00:16:54,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24096 states. [2021-06-05 00:16:55,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24096 to 24096. [2021-06-05 00:16:55,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24096 states, 24095 states have (on average 4.189831915335132) internal successors, (100954), 24095 states have internal predecessors, (100954), 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) [2021-06-05 00:16:55,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24096 states to 24096 states and 100954 transitions. [2021-06-05 00:16:55,967 INFO L78 Accepts]: Start accepts. Automaton has 24096 states and 100954 transitions. Word has length 57 [2021-06-05 00:16:55,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:55,968 INFO L482 AbstractCegarLoop]: Abstraction has 24096 states and 100954 transitions. [2021-06-05 00:16:55,969 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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) [2021-06-05 00:16:55,969 INFO L276 IsEmpty]: Start isEmpty. Operand 24096 states and 100954 transitions. [2021-06-05 00:16:56,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-05 00:16:56,035 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:56,035 INFO L521 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] [2021-06-05 00:16:56,036 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 00:16:56,036 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:56,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:56,037 INFO L82 PathProgramCache]: Analyzing trace with hash -530234009, now seen corresponding path program 1 times [2021-06-05 00:16:56,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:56,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655480299] [2021-06-05 00:16:56,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:16:56,198 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:56,198 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655480299] [2021-06-05 00:16:56,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655480299] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:56,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:56,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:16:56,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546118877] [2021-06-05 00:16:56,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:16:56,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:56,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:16:56,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:16:56,201 INFO L87 Difference]: Start difference. First operand 24096 states and 100954 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) [2021-06-05 00:16:56,599 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-06-05 00:16:56,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:56,881 INFO L93 Difference]: Finished difference Result 31802 states and 133015 transitions. [2021-06-05 00:16:56,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:16:56,883 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 [2021-06-05 00:16:56,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:57,054 INFO L225 Difference]: With dead ends: 31802 [2021-06-05 00:16:57,054 INFO L226 Difference]: Without dead ends: 26042 [2021-06-05 00:16:57,056 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 394.7ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:16:57,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26042 states. [2021-06-05 00:16:58,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26042 to 26042. [2021-06-05 00:16:58,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26042 states, 26041 states have (on average 4.193195345800852) internal successors, (109195), 26041 states have internal predecessors, (109195), 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) [2021-06-05 00:16:58,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26042 states to 26042 states and 109195 transitions. [2021-06-05 00:16:58,221 INFO L78 Accepts]: Start accepts. Automaton has 26042 states and 109195 transitions. Word has length 59 [2021-06-05 00:16:58,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:58,221 INFO L482 AbstractCegarLoop]: Abstraction has 26042 states and 109195 transitions. [2021-06-05 00:16:58,222 INFO L483 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) [2021-06-05 00:16:58,222 INFO L276 IsEmpty]: Start isEmpty. Operand 26042 states and 109195 transitions. [2021-06-05 00:16:58,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 00:16:58,265 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:58,265 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:16:58,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 00:16:58,265 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:58,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:58,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1430277990, now seen corresponding path program 1 times [2021-06-05 00:16:58,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:58,266 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028880658] [2021-06-05 00:16:58,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:58,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:16:58,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:58,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028880658] [2021-06-05 00:16:58,366 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028880658] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:58,366 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:58,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:16:58,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690312767] [2021-06-05 00:16:58,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:16:58,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:58,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:16:58,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:16:58,367 INFO L87 Difference]: Start difference. First operand 26042 states and 109195 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:58,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:58,941 INFO L93 Difference]: Finished difference Result 28730 states and 119619 transitions. [2021-06-05 00:16:58,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:16:58,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-05 00:16:58,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:59,028 INFO L225 Difference]: With dead ends: 28730 [2021-06-05 00:16:59,029 INFO L226 Difference]: Without dead ends: 24026 [2021-06-05 00:16:59,029 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 139.9ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 00:16:59,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24026 states. [2021-06-05 00:16:59,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24026 to 23586. [2021-06-05 00:16:59,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23586 states, 23585 states have (on average 4.1687937248251) internal successors, (98321), 23585 states have internal predecessors, (98321), 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) [2021-06-05 00:16:59,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23586 states to 23586 states and 98321 transitions. [2021-06-05 00:16:59,941 INFO L78 Accepts]: Start accepts. Automaton has 23586 states and 98321 transitions. Word has length 60 [2021-06-05 00:16:59,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:59,942 INFO L482 AbstractCegarLoop]: Abstraction has 23586 states and 98321 transitions. [2021-06-05 00:16:59,942 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:59,942 INFO L276 IsEmpty]: Start isEmpty. Operand 23586 states and 98321 transitions. [2021-06-05 00:16:59,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 00:16:59,990 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:59,990 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:16:59,990 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 00:16:59,990 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:59,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:59,991 INFO L82 PathProgramCache]: Analyzing trace with hash 567703026, now seen corresponding path program 1 times [2021-06-05 00:16:59,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:59,992 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039347304] [2021-06-05 00:16:59,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:00,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:00,147 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:00,147 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039347304] [2021-06-05 00:17:00,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039347304] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:00,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:00,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:17:00,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667017611] [2021-06-05 00:17:00,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:17:00,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:00,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:17:00,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:17:00,153 INFO L87 Difference]: Start difference. First operand 23586 states and 98321 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:00,485 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2021-06-05 00:17:00,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:00,900 INFO L93 Difference]: Finished difference Result 29726 states and 123756 transitions. [2021-06-05 00:17:00,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:17:00,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 00:17:00,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:01,001 INFO L225 Difference]: With dead ends: 29726 [2021-06-05 00:17:01,001 INFO L226 Difference]: Without dead ends: 25550 [2021-06-05 00:17:01,002 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 506.2ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:17:01,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25550 states. [2021-06-05 00:17:01,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25550 to 24836. [2021-06-05 00:17:01,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24836 states, 24835 states have (on average 4.16891483793034) internal successors, (103535), 24835 states have internal predecessors, (103535), 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) [2021-06-05 00:17:01,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24836 states to 24836 states and 103535 transitions. [2021-06-05 00:17:01,980 INFO L78 Accepts]: Start accepts. Automaton has 24836 states and 103535 transitions. Word has length 61 [2021-06-05 00:17:01,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:01,980 INFO L482 AbstractCegarLoop]: Abstraction has 24836 states and 103535 transitions. [2021-06-05 00:17:01,980 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:01,980 INFO L276 IsEmpty]: Start isEmpty. Operand 24836 states and 103535 transitions. [2021-06-05 00:17:02,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 00:17:02,017 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:02,017 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:02,017 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 00:17:02,018 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:02,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:02,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1512386169, now seen corresponding path program 1 times [2021-06-05 00:17:02,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:02,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46707183] [2021-06-05 00:17:02,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:02,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:02,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46707183] [2021-06-05 00:17:02,124 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46707183] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:02,124 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:02,124 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:17:02,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869875850] [2021-06-05 00:17:02,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:17:02,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:02,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:17:02,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:17:02,126 INFO L87 Difference]: Start difference. First operand 24836 states and 103535 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2021-06-05 00:17:02,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:02,503 INFO L93 Difference]: Finished difference Result 34228 states and 142251 transitions. [2021-06-05 00:17:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:17:02,503 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 62 [2021-06-05 00:17:02,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:02,546 INFO L225 Difference]: With dead ends: 34228 [2021-06-05 00:17:02,546 INFO L226 Difference]: Without dead ends: 16021 [2021-06-05 00:17:02,546 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 164.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:17:02,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16021 states. [2021-06-05 00:17:03,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16021 to 16021. [2021-06-05 00:17:03,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16021 states, 16020 states have (on average 4.118851435705368) internal successors, (65984), 16020 states have internal predecessors, (65984), 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) [2021-06-05 00:17:03,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16021 states to 16021 states and 65984 transitions. [2021-06-05 00:17:03,185 INFO L78 Accepts]: Start accepts. Automaton has 16021 states and 65984 transitions. Word has length 62 [2021-06-05 00:17:03,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:03,185 INFO L482 AbstractCegarLoop]: Abstraction has 16021 states and 65984 transitions. [2021-06-05 00:17:03,186 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2021-06-05 00:17:03,186 INFO L276 IsEmpty]: Start isEmpty. Operand 16021 states and 65984 transitions. [2021-06-05 00:17:03,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-05 00:17:03,206 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:03,206 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:03,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 00:17:03,206 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:03,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:03,207 INFO L82 PathProgramCache]: Analyzing trace with hash -723232077, now seen corresponding path program 1 times [2021-06-05 00:17:03,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:03,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900710302] [2021-06-05 00:17:03,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:03,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:03,322 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:03,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900710302] [2021-06-05 00:17:03,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900710302] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:03,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:03,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:17:03,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270592197] [2021-06-05 00:17:03,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:17:03,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:03,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:17:03,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:17:03,325 INFO L87 Difference]: Start difference. First operand 16021 states and 65984 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:03,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:03,529 INFO L93 Difference]: Finished difference Result 22621 states and 92234 transitions. [2021-06-05 00:17:03,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:17:03,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-05 00:17:03,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:03,555 INFO L225 Difference]: With dead ends: 22621 [2021-06-05 00:17:03,556 INFO L226 Difference]: Without dead ends: 11161 [2021-06-05 00:17:03,556 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 105.1ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 00:17:03,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11161 states. [2021-06-05 00:17:04,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11161 to 11161. [2021-06-05 00:17:04,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11161 states, 11160 states have (on average 4.009498207885304) internal successors, (44746), 11160 states have internal predecessors, (44746), 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) [2021-06-05 00:17:04,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11161 states to 11161 states and 44746 transitions. [2021-06-05 00:17:04,088 INFO L78 Accepts]: Start accepts. Automaton has 11161 states and 44746 transitions. Word has length 63 [2021-06-05 00:17:04,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:04,088 INFO L482 AbstractCegarLoop]: Abstraction has 11161 states and 44746 transitions. [2021-06-05 00:17:04,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:04,089 INFO L276 IsEmpty]: Start isEmpty. Operand 11161 states and 44746 transitions. [2021-06-05 00:17:04,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-05 00:17:04,105 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:04,105 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:04,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 00:17:04,105 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:04,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:04,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1538860148, now seen corresponding path program 1 times [2021-06-05 00:17:04,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:04,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106264550] [2021-06-05 00:17:04,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:04,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:04,225 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:04,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106264550] [2021-06-05 00:17:04,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106264550] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:04,225 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:04,225 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:17:04,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335280353] [2021-06-05 00:17:04,226 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:17:04,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:04,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:17:04,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:17:04,227 INFO L87 Difference]: Start difference. First operand 11161 states and 44746 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:04,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:04,420 INFO L93 Difference]: Finished difference Result 14913 states and 59378 transitions. [2021-06-05 00:17:04,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:17:04,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-06-05 00:17:04,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:04,445 INFO L225 Difference]: With dead ends: 14913 [2021-06-05 00:17:04,445 INFO L226 Difference]: Without dead ends: 10817 [2021-06-05 00:17:04,445 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 101.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:17:04,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10817 states. [2021-06-05 00:17:04,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10817 to 10817. [2021-06-05 00:17:04,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10817 states, 10816 states have (on average 3.9927884615384617) internal successors, (43186), 10816 states have internal predecessors, (43186), 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) [2021-06-05 00:17:04,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10817 states to 10817 states and 43186 transitions. [2021-06-05 00:17:04,681 INFO L78 Accepts]: Start accepts. Automaton has 10817 states and 43186 transitions. Word has length 65 [2021-06-05 00:17:04,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:04,681 INFO L482 AbstractCegarLoop]: Abstraction has 10817 states and 43186 transitions. [2021-06-05 00:17:04,681 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:04,681 INFO L276 IsEmpty]: Start isEmpty. Operand 10817 states and 43186 transitions. [2021-06-05 00:17:04,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 00:17:04,696 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:04,696 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:04,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 00:17:04,696 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:04,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:04,696 INFO L82 PathProgramCache]: Analyzing trace with hash -190830206, now seen corresponding path program 1 times [2021-06-05 00:17:04,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:04,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676836926] [2021-06-05 00:17:04,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:04,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:04,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:04,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676836926] [2021-06-05 00:17:04,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676836926] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:04,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:04,797 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:17:04,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148522788] [2021-06-05 00:17:04,797 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:17:04,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:04,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:17:04,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:17:04,798 INFO L87 Difference]: Start difference. First operand 10817 states and 43186 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:05,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:05,150 INFO L93 Difference]: Finished difference Result 13241 states and 52158 transitions. [2021-06-05 00:17:05,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:17:05,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-05 00:17:05,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:05,174 INFO L225 Difference]: With dead ends: 13241 [2021-06-05 00:17:05,175 INFO L226 Difference]: Without dead ends: 9401 [2021-06-05 00:17:05,175 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 244.8ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:17:05,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9401 states. [2021-06-05 00:17:05,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9401 to 9401. [2021-06-05 00:17:05,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9401 states, 9400 states have (on average 3.923191489361702) internal successors, (36878), 9400 states have internal predecessors, (36878), 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) [2021-06-05 00:17:05,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9401 states to 9401 states and 36878 transitions. [2021-06-05 00:17:05,410 INFO L78 Accepts]: Start accepts. Automaton has 9401 states and 36878 transitions. Word has length 66 [2021-06-05 00:17:05,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:05,411 INFO L482 AbstractCegarLoop]: Abstraction has 9401 states and 36878 transitions. [2021-06-05 00:17:05,411 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:05,411 INFO L276 IsEmpty]: Start isEmpty. Operand 9401 states and 36878 transitions. [2021-06-05 00:17:05,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-06-05 00:17:05,425 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:05,425 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:05,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 00:17:05,426 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:05,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:05,426 INFO L82 PathProgramCache]: Analyzing trace with hash 92983515, now seen corresponding path program 1 times [2021-06-05 00:17:05,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:05,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870644002] [2021-06-05 00:17:05,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:05,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:05,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:05,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870644002] [2021-06-05 00:17:05,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870644002] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:05,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:05,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:17:05,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824291824] [2021-06-05 00:17:05,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:17:05,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:05,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:17:05,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:17:05,517 INFO L87 Difference]: Start difference. First operand 9401 states and 36878 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:05,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:05,737 INFO L93 Difference]: Finished difference Result 9734 states and 37430 transitions. [2021-06-05 00:17:05,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:17:05,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-06-05 00:17:05,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:05,757 INFO L225 Difference]: With dead ends: 9734 [2021-06-05 00:17:05,757 INFO L226 Difference]: Without dead ends: 6854 [2021-06-05 00:17:05,758 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 133.5ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:17:05,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6854 states. [2021-06-05 00:17:05,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6854 to 6854. [2021-06-05 00:17:05,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6854 states, 6853 states have (on average 3.7970232015175833) internal successors, (26021), 6853 states have internal predecessors, (26021), 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) [2021-06-05 00:17:05,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6854 states to 6854 states and 26021 transitions. [2021-06-05 00:17:05,903 INFO L78 Accepts]: Start accepts. Automaton has 6854 states and 26021 transitions. Word has length 67 [2021-06-05 00:17:05,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:05,903 INFO L482 AbstractCegarLoop]: Abstraction has 6854 states and 26021 transitions. [2021-06-05 00:17:05,903 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:05,903 INFO L276 IsEmpty]: Start isEmpty. Operand 6854 states and 26021 transitions. [2021-06-05 00:17:05,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-05 00:17:05,915 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:05,915 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:05,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 00:17:05,915 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:05,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:05,916 INFO L82 PathProgramCache]: Analyzing trace with hash 319759386, now seen corresponding path program 1 times [2021-06-05 00:17:05,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:05,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627148611] [2021-06-05 00:17:05,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:06,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:06,026 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:06,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627148611] [2021-06-05 00:17:06,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627148611] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:06,027 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:06,027 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 00:17:06,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605209022] [2021-06-05 00:17:06,027 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 00:17:06,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:06,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 00:17:06,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-05 00:17:06,028 INFO L87 Difference]: Start difference. First operand 6854 states and 26021 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:06,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:06,239 INFO L93 Difference]: Finished difference Result 5936 states and 22160 transitions. [2021-06-05 00:17:06,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 00:17:06,239 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-06-05 00:17:06,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:06,249 INFO L225 Difference]: With dead ends: 5936 [2021-06-05 00:17:06,249 INFO L226 Difference]: Without dead ends: 4532 [2021-06-05 00:17:06,253 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 148.5ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-06-05 00:17:06,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4532 states. [2021-06-05 00:17:06,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4532 to 4532. [2021-06-05 00:17:06,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4532 states, 4531 states have (on average 3.693003751931141) internal successors, (16733), 4531 states have internal predecessors, (16733), 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) [2021-06-05 00:17:06,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 16733 transitions. [2021-06-05 00:17:06,383 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 16733 transitions. Word has length 69 [2021-06-05 00:17:06,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:06,383 INFO L482 AbstractCegarLoop]: Abstraction has 4532 states and 16733 transitions. [2021-06-05 00:17:06,383 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:06,384 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 16733 transitions. [2021-06-05 00:17:06,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-06-05 00:17:06,389 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:06,389 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:06,390 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 00:17:06,390 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:06,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:06,390 INFO L82 PathProgramCache]: Analyzing trace with hash -510658629, now seen corresponding path program 1 times [2021-06-05 00:17:06,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:06,390 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86037328] [2021-06-05 00:17:06,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:06,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:06,476 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:06,476 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86037328] [2021-06-05 00:17:06,476 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86037328] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:06,476 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:06,476 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:17:06,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069680850] [2021-06-05 00:17:06,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:17:06,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:06,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:17:06,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:17:06,478 INFO L87 Difference]: Start difference. First operand 4532 states and 16733 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:06,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:06,602 INFO L93 Difference]: Finished difference Result 6605 states and 24478 transitions. [2021-06-05 00:17:06,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 00:17:06,602 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-06-05 00:17:06,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:06,610 INFO L225 Difference]: With dead ends: 6605 [2021-06-05 00:17:06,610 INFO L226 Difference]: Without dead ends: 4116 [2021-06-05 00:17:06,610 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 92.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:17:06,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4116 states. [2021-06-05 00:17:06,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4116 to 3540. [2021-06-05 00:17:06,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3540 states, 3539 states have (on average 3.631816897428652) internal successors, (12853), 3539 states have internal predecessors, (12853), 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) [2021-06-05 00:17:06,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 12853 transitions. [2021-06-05 00:17:06,662 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 12853 transitions. Word has length 71 [2021-06-05 00:17:06,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:06,662 INFO L482 AbstractCegarLoop]: Abstraction has 3540 states and 12853 transitions. [2021-06-05 00:17:06,662 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:06,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 12853 transitions. [2021-06-05 00:17:06,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-06-05 00:17:06,669 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:06,669 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:06,670 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 00:17:06,670 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:06,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:06,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1806523195, now seen corresponding path program 2 times [2021-06-05 00:17:06,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:06,670 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509644168] [2021-06-05 00:17:06,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:06,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:06,746 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:06,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509644168] [2021-06-05 00:17:06,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509644168] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:06,746 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:06,746 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:17:06,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486319553] [2021-06-05 00:17:06,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:17:06,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:06,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:17:06,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:17:06,748 INFO L87 Difference]: Start difference. First operand 3540 states and 12853 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:06,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:06,857 INFO L93 Difference]: Finished difference Result 3378 states and 12259 transitions. [2021-06-05 00:17:06,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 00:17:06,857 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-06-05 00:17:06,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:06,857 INFO L225 Difference]: With dead ends: 3378 [2021-06-05 00:17:06,858 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 00:17:06,858 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 108.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:17:06,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 00:17:06,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 00:17:06,858 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) [2021-06-05 00:17:06,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 00:17:06,858 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2021-06-05 00:17:06,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:06,858 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 00:17:06,858 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:06,858 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 00:17:06,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 00:17:06,859 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 00:17:06,860 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 00:17:06,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:17:06 BasicIcfg [2021-06-05 00:17:06,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 00:17:06,863 INFO L168 Benchmark]: Toolchain (without parser) took 21625.41 ms. Allocated memory was 364.9 MB in the beginning and 10.9 GB in the end (delta: 10.5 GB). Free memory was 327.7 MB in the beginning and 9.4 GB in the end (delta: -9.1 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.0 GB. [2021-06-05 00:17:06,863 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 364.9 MB. Free memory was 346.0 MB in the beginning and 345.9 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:17:06,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 457.56 ms. Allocated memory is still 364.9 MB. Free memory was 327.5 MB in the beginning and 327.6 MB in the end (delta: -107.2 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-06-05 00:17:06,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.21 ms. Allocated memory is still 364.9 MB. Free memory was 327.6 MB in the beginning and 325.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:17:06,864 INFO L168 Benchmark]: Boogie Preprocessor took 20.95 ms. Allocated memory is still 364.9 MB. Free memory was 325.5 MB in the beginning and 323.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:17:06,864 INFO L168 Benchmark]: RCFGBuilder took 480.81 ms. Allocated memory is still 364.9 MB. Free memory was 323.4 MB in the beginning and 295.1 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 00:17:06,864 INFO L168 Benchmark]: TraceAbstraction took 20619.75 ms. Allocated memory was 364.9 MB in the beginning and 10.9 GB in the end (delta: 10.5 GB). Free memory was 295.1 MB in the beginning and 9.4 GB in the end (delta: -9.1 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.0 GB. [2021-06-05 00:17:06,865 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 364.9 MB. Free memory was 346.0 MB in the beginning and 345.9 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 457.56 ms. Allocated memory is still 364.9 MB. Free memory was 327.5 MB in the beginning and 327.6 MB in the end (delta: -107.2 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 41.21 ms. Allocated memory is still 364.9 MB. Free memory was 327.6 MB in the beginning and 325.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.95 ms. Allocated memory is still 364.9 MB. Free memory was 325.5 MB in the beginning and 323.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 480.81 ms. Allocated memory is still 364.9 MB. Free memory was 323.4 MB in the beginning and 295.1 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 20619.75 ms. Allocated memory was 364.9 MB in the beginning and 10.9 GB in the end (delta: 10.5 GB). Free memory was 295.1 MB in the beginning and 9.4 GB in the end (delta: -9.1 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 128 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20487.2ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 577.5ms, AutomataDifference: 5896.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5414.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1542 SDtfs, 2823 SDslu, 5432 SDs, 0 SdLazy, 625 SolverSat, 136 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 516.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2385.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51816occurred in iteration=0, InterpolantAutomatonStates: 131, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6710.3ms AutomataMinimizationTime, 12 MinimizatonAttempts, 1730 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 50.0ms SsaConstructionTime, 226.2ms SatisfiabilityAnalysisTime, 1401.0ms InterpolantComputationTime, 771 NumberOfCodeBlocks, 771 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 759 ConstructedInterpolants, 0 QuantifiedInterpolants, 3447 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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! Received shutdown request...