/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:51:19,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:51:19,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:51:19,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 16:51:19,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:51:19,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:51:19,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:51:19,917 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 [2021-07-09 16:51:19,959 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:51:19,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:51:19,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:51:19,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:51:19,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:51:19,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:51:19,963 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:51:19,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:51:19,963 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:51:19,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:51:19,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:51:19,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:51:19,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:51:19,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:51:19,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:51:19,965 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:51:19,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:51:19,965 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:51:19,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:51:19,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:51:19,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:51:19,966 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:51:19,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:51:19,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:51:19,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:51:19,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:51:19,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:51:19,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:51:19,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:51:19,967 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:51:19,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:51:19,967 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:51:20,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:51:20,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:51:20,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:51:20,297 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:51:20,298 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:51:20,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-07-09 16:51:20,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e165d076b/990896ddf2664adcbaa296dc75f69687/FLAG72fd976f0 [2021-07-09 16:51:20,922 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:51:20,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-07-09 16:51:20,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e165d076b/990896ddf2664adcbaa296dc75f69687/FLAG72fd976f0 [2021-07-09 16:51:21,248 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e165d076b/990896ddf2664adcbaa296dc75f69687 [2021-07-09 16:51:21,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:51:21,253 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:51:21,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:51:21,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:51:21,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:51:21,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:51:21" (1/1) ... [2021-07-09 16:51:21,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ee389d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:51:21, skipping insertion in model container [2021-07-09 16:51:21,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:51:21" (1/1) ... [2021-07-09 16:51:21,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:51:21,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:51:21,435 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] [2021-07-09 16:51:21,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:51:21,642 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:51:21,653 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] [2021-07-09 16:51:21,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:51:21,736 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:51:21,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:51:21 WrapperNode [2021-07-09 16:51:21,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:51:21,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:51:21,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:51:21,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:51:21,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:51:21" (1/1) ... [2021-07-09 16:51:21,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:51:21" (1/1) ... [2021-07-09 16:51:21,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:51:21,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:51:21,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:51:21,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:51:21,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:51:21" (1/1) ... [2021-07-09 16:51:21,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:51:21" (1/1) ... [2021-07-09 16:51:21,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:51:21" (1/1) ... [2021-07-09 16:51:21,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:51:21" (1/1) ... [2021-07-09 16:51:21,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:51:21" (1/1) ... [2021-07-09 16:51:21,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:51:21" (1/1) ... [2021-07-09 16:51:21,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:51:21" (1/1) ... [2021-07-09 16:51:21,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:51:21,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:51:21,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:51:21,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:51:21,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:51:21" (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 [2021-07-09 16:51:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:51:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 16:51:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:51:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:51:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 16:51:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 16:51:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 16:51:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 16:51:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-09 16:51:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-09 16:51:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-07-09 16:51:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-07-09 16:51:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:51:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 16:51:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:51:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:51:21,901 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 16:51:22,305 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:51:22,306 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 16:51:22,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:51:22 BoogieIcfgContainer [2021-07-09 16:51:22,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:51:22,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:51:22,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:51:22,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:51:22,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:51:21" (1/3) ... [2021-07-09 16:51:22,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4655fd37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:51:22, skipping insertion in model container [2021-07-09 16:51:22,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:51:21" (2/3) ... [2021-07-09 16:51:22,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4655fd37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:51:22, skipping insertion in model container [2021-07-09 16:51:22,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:51:22" (3/3) ... [2021-07-09 16:51:22,317 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2021-07-09 16:51:22,323 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:51:22,323 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:51:22,323 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 16:51:22,324 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:51:22,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,366 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,366 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,367 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,367 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,368 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,368 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,368 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,370 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,370 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,370 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,370 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,371 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,371 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,371 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,371 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,373 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,373 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,373 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,373 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,373 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,374 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,374 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,374 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,375 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,375 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,375 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,375 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,376 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,376 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,376 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,376 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,376 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,376 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,377 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,378 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,379 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,379 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,379 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,379 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,381 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,382 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,382 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,382 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,387 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,387 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,388 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,389 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,390 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,393 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,393 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,394 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:51:22,395 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 16:51:22,417 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-07-09 16:51:22,435 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:51:22,435 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:51:22,436 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:51:22,436 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:51:22,436 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:51:22,436 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:51:22,436 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:51:22,436 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:51:22,451 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 110 places, 99 transitions, 218 flow [2021-07-09 16:51:23,912 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 28884 states, 28883 states have (on average 4.2975452688432645) internal successors, (124126), 28883 states have internal predecessors, (124126), 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) [2021-07-09 16:51:24,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 28884 states, 28883 states have (on average 4.2975452688432645) internal successors, (124126), 28883 states have internal predecessors, (124126), 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) [2021-07-09 16:51:24,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-07-09 16:51:24,179 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:51:24,180 INFO L508 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] [2021-07-09 16:51:24,180 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:51:24,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:51:24,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1244979450, now seen corresponding path program 1 times [2021-07-09 16:51:24,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:51:24,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595842848] [2021-07-09 16:51:24,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:51:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:51:24,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:51:24,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:51:24,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595842848] [2021-07-09 16:51:24,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595842848] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:51:24,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:51:24,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:51:24,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681502886] [2021-07-09 16:51:24,664 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:51:24,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:51:24,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:51:24,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:51:24,758 INFO L87 Difference]: Start difference. First operand has 28884 states, 28883 states have (on average 4.2975452688432645) internal successors, (124126), 28883 states have internal predecessors, (124126), 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) [2021-07-09 16:51:25,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:51:25,656 INFO L93 Difference]: Finished difference Result 32916 states and 138334 transitions. [2021-07-09 16:51:25,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:51:25,657 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 [2021-07-09 16:51:25,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:51:25,908 INFO L225 Difference]: With dead ends: 32916 [2021-07-09 16:51:25,908 INFO L226 Difference]: Without dead ends: 24096 [2021-07-09 16:51:25,910 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 151.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:51:26,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24096 states. [2021-07-09 16:51:27,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24096 to 24096. [2021-07-09 16:51:27,312 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) [2021-07-09 16:51:27,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24096 states to 24096 states and 100954 transitions. [2021-07-09 16:51:27,704 INFO L78 Accepts]: Start accepts. Automaton has 24096 states and 100954 transitions. Word has length 57 [2021-07-09 16:51:27,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:51:27,705 INFO L482 AbstractCegarLoop]: Abstraction has 24096 states and 100954 transitions. [2021-07-09 16:51:27,705 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) [2021-07-09 16:51:27,705 INFO L276 IsEmpty]: Start isEmpty. Operand 24096 states and 100954 transitions. [2021-07-09 16:51:27,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-07-09 16:51:27,759 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:51:27,759 INFO L508 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] [2021-07-09 16:51:27,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:51:27,760 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:51:27,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:51:27,761 INFO L82 PathProgramCache]: Analyzing trace with hash 2135501223, now seen corresponding path program 1 times [2021-07-09 16:51:27,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:51:27,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272886436] [2021-07-09 16:51:27,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:51:27,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:51:27,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:51:27,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:51:27,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272886436] [2021-07-09 16:51:27,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272886436] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:51:27,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:51:27,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:51:27,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198063734] [2021-07-09 16:51:27,875 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:51:27,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:51:27,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:51:27,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:51:27,876 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) [2021-07-09 16:51:28,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:51:28,669 INFO L93 Difference]: Finished difference Result 31802 states and 133015 transitions. [2021-07-09 16:51:28,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:51:28,669 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 [2021-07-09 16:51:28,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:51:28,953 INFO L225 Difference]: With dead ends: 31802 [2021-07-09 16:51:28,953 INFO L226 Difference]: Without dead ends: 26042 [2021-07-09 16:51:28,954 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 310.7ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:51:29,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26042 states. [2021-07-09 16:51:30,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26042 to 26042. [2021-07-09 16:51:30,112 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) [2021-07-09 16:51:30,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26042 states to 26042 states and 109195 transitions. [2021-07-09 16:51:30,239 INFO L78 Accepts]: Start accepts. Automaton has 26042 states and 109195 transitions. Word has length 59 [2021-07-09 16:51:30,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:51:30,240 INFO L482 AbstractCegarLoop]: Abstraction has 26042 states and 109195 transitions. [2021-07-09 16:51:30,240 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) [2021-07-09 16:51:30,240 INFO L276 IsEmpty]: Start isEmpty. Operand 26042 states and 109195 transitions. [2021-07-09 16:51:30,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 16:51:30,288 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:51:30,288 INFO L508 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] [2021-07-09 16:51:30,289 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:51:30,289 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:51:30,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:51:30,290 INFO L82 PathProgramCache]: Analyzing trace with hash -396864422, now seen corresponding path program 1 times [2021-07-09 16:51:30,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:51:30,290 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500246600] [2021-07-09 16:51:30,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:51:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:51:30,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:51:30,413 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:51:30,414 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500246600] [2021-07-09 16:51:30,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500246600] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:51:30,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:51:30,415 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:51:30,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109660628] [2021-07-09 16:51:30,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:51:30,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:51:30,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:51:30,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:51:30,421 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) [2021-07-09 16:51:30,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:51:30,969 INFO L93 Difference]: Finished difference Result 28730 states and 119619 transitions. [2021-07-09 16:51:30,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:51:30,970 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 [2021-07-09 16:51:30,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:51:31,316 INFO L225 Difference]: With dead ends: 28730 [2021-07-09 16:51:31,325 INFO L226 Difference]: Without dead ends: 24026 [2021-07-09 16:51:31,325 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 105.6ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:51:31,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24026 states. [2021-07-09 16:51:32,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24026 to 23586. [2021-07-09 16:51:32,218 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) [2021-07-09 16:51:32,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23586 states to 23586 states and 98321 transitions. [2021-07-09 16:51:32,323 INFO L78 Accepts]: Start accepts. Automaton has 23586 states and 98321 transitions. Word has length 60 [2021-07-09 16:51:32,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:51:32,325 INFO L482 AbstractCegarLoop]: Abstraction has 23586 states and 98321 transitions. [2021-07-09 16:51:32,325 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) [2021-07-09 16:51:32,325 INFO L276 IsEmpty]: Start isEmpty. Operand 23586 states and 98321 transitions. [2021-07-09 16:51:32,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-09 16:51:32,382 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:51:32,382 INFO L508 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] [2021-07-09 16:51:32,382 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:51:32,382 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:51:32,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:51:32,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1601116594, now seen corresponding path program 1 times [2021-07-09 16:51:32,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:51:32,383 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068117257] [2021-07-09 16:51:32,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:51:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:51:32,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:51:32,481 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:51:32,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068117257] [2021-07-09 16:51:32,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068117257] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:51:32,482 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:51:32,482 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:51:32,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191887968] [2021-07-09 16:51:32,482 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:51:32,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:51:32,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:51:32,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:51:32,484 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) [2021-07-09 16:51:33,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:51:33,224 INFO L93 Difference]: Finished difference Result 29726 states and 123756 transitions. [2021-07-09 16:51:33,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:51:33,225 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 [2021-07-09 16:51:33,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:51:33,327 INFO L225 Difference]: With dead ends: 29726 [2021-07-09 16:51:33,328 INFO L226 Difference]: Without dead ends: 25550 [2021-07-09 16:51:33,328 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 236.6ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:51:33,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25550 states. [2021-07-09 16:51:34,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25550 to 24836. [2021-07-09 16:51:34,315 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) [2021-07-09 16:51:34,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24836 states to 24836 states and 103535 transitions. [2021-07-09 16:51:34,406 INFO L78 Accepts]: Start accepts. Automaton has 24836 states and 103535 transitions. Word has length 61 [2021-07-09 16:51:34,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:51:34,406 INFO L482 AbstractCegarLoop]: Abstraction has 24836 states and 103535 transitions. [2021-07-09 16:51:34,406 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) [2021-07-09 16:51:34,407 INFO L276 IsEmpty]: Start isEmpty. Operand 24836 states and 103535 transitions. [2021-07-09 16:51:34,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 16:51:34,451 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:51:34,451 INFO L508 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] [2021-07-09 16:51:34,451 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:51:34,452 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:51:34,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:51:34,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1749167559, now seen corresponding path program 1 times [2021-07-09 16:51:34,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:51:34,453 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499457435] [2021-07-09 16:51:34,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:51:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:51:34,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:51:34,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:51:34,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499457435] [2021-07-09 16:51:34,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499457435] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:51:34,594 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:51:34,594 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:51:34,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122747870] [2021-07-09 16:51:34,596 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:51:34,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:51:34,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:51:34,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:51:34,597 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) [2021-07-09 16:51:35,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:51:35,183 INFO L93 Difference]: Finished difference Result 34228 states and 142251 transitions. [2021-07-09 16:51:35,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:51:35,183 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 [2021-07-09 16:51:35,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:51:35,246 INFO L225 Difference]: With dead ends: 34228 [2021-07-09 16:51:35,246 INFO L226 Difference]: Without dead ends: 16021 [2021-07-09 16:51:35,247 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 143.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:51:35,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16021 states. [2021-07-09 16:51:35,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16021 to 16021. [2021-07-09 16:51:35,829 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) [2021-07-09 16:51:35,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16021 states to 16021 states and 65984 transitions. [2021-07-09 16:51:35,882 INFO L78 Accepts]: Start accepts. Automaton has 16021 states and 65984 transitions. Word has length 62 [2021-07-09 16:51:35,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:51:35,882 INFO L482 AbstractCegarLoop]: Abstraction has 16021 states and 65984 transitions. [2021-07-09 16:51:35,882 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) [2021-07-09 16:51:35,882 INFO L276 IsEmpty]: Start isEmpty. Operand 16021 states and 65984 transitions. [2021-07-09 16:51:35,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-09 16:51:35,906 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:51:35,906 INFO L508 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] [2021-07-09 16:51:35,906 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:51:35,906 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:51:35,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:51:35,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1421608561, now seen corresponding path program 1 times [2021-07-09 16:51:35,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:51:35,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928360740] [2021-07-09 16:51:35,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:51:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:51:36,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:51:36,019 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:51:36,019 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928360740] [2021-07-09 16:51:36,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928360740] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:51:36,019 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:51:36,019 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:51:36,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233188545] [2021-07-09 16:51:36,020 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:51:36,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:51:36,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:51:36,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:51:36,020 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) [2021-07-09 16:51:36,376 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2021-07-09 16:51:36,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:51:36,478 INFO L93 Difference]: Finished difference Result 22621 states and 92234 transitions. [2021-07-09 16:51:36,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:51:36,479 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 [2021-07-09 16:51:36,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:51:36,520 INFO L225 Difference]: With dead ends: 22621 [2021-07-09 16:51:36,520 INFO L226 Difference]: Without dead ends: 11161 [2021-07-09 16:51:36,521 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 315.6ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:51:36,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11161 states. [2021-07-09 16:51:36,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11161 to 11161. [2021-07-09 16:51:36,739 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) [2021-07-09 16:51:36,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11161 states to 11161 states and 44746 transitions. [2021-07-09 16:51:36,774 INFO L78 Accepts]: Start accepts. Automaton has 11161 states and 44746 transitions. Word has length 63 [2021-07-09 16:51:36,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:51:36,774 INFO L482 AbstractCegarLoop]: Abstraction has 11161 states and 44746 transitions. [2021-07-09 16:51:36,774 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) [2021-07-09 16:51:36,775 INFO L276 IsEmpty]: Start isEmpty. Operand 11161 states and 44746 transitions. [2021-07-09 16:51:36,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-07-09 16:51:36,792 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:51:36,792 INFO L508 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] [2021-07-09 16:51:36,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 16:51:36,792 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:51:36,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:51:36,793 INFO L82 PathProgramCache]: Analyzing trace with hash -611266510, now seen corresponding path program 1 times [2021-07-09 16:51:36,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:51:36,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290273787] [2021-07-09 16:51:36,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:51:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:51:37,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:51:37,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:51:37,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290273787] [2021-07-09 16:51:37,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290273787] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:51:37,078 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:51:37,078 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:51:37,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322249751] [2021-07-09 16:51:37,078 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:51:37,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:51:37,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:51:37,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:51:37,079 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) [2021-07-09 16:51:37,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:51:37,270 INFO L93 Difference]: Finished difference Result 14913 states and 59378 transitions. [2021-07-09 16:51:37,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:51:37,271 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 [2021-07-09 16:51:37,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:51:37,305 INFO L225 Difference]: With dead ends: 14913 [2021-07-09 16:51:37,305 INFO L226 Difference]: Without dead ends: 10817 [2021-07-09 16:51:37,305 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 77.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:51:37,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10817 states. [2021-07-09 16:51:37,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10817 to 10817. [2021-07-09 16:51:37,521 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) [2021-07-09 16:51:37,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10817 states to 10817 states and 43186 transitions. [2021-07-09 16:51:37,713 INFO L78 Accepts]: Start accepts. Automaton has 10817 states and 43186 transitions. Word has length 65 [2021-07-09 16:51:37,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:51:37,713 INFO L482 AbstractCegarLoop]: Abstraction has 10817 states and 43186 transitions. [2021-07-09 16:51:37,715 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) [2021-07-09 16:51:37,715 INFO L276 IsEmpty]: Start isEmpty. Operand 10817 states and 43186 transitions. [2021-07-09 16:51:37,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-09 16:51:37,735 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:51:37,736 INFO L508 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] [2021-07-09 16:51:37,736 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 16:51:37,736 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:51:37,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:51:37,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1954010432, now seen corresponding path program 1 times [2021-07-09 16:51:37,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:51:37,737 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40548694] [2021-07-09 16:51:37,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:51:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:51:37,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:51:37,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:51:37,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40548694] [2021-07-09 16:51:37,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40548694] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:51:37,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:51:37,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:51:37,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799296836] [2021-07-09 16:51:37,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:51:37,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:51:37,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:51:37,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:51:37,830 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) [2021-07-09 16:51:38,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:51:38,035 INFO L93 Difference]: Finished difference Result 13241 states and 52158 transitions. [2021-07-09 16:51:38,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:51:38,036 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 [2021-07-09 16:51:38,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:51:38,066 INFO L225 Difference]: With dead ends: 13241 [2021-07-09 16:51:38,067 INFO L226 Difference]: Without dead ends: 9401 [2021-07-09 16:51:38,067 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 90.8ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:51:38,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9401 states. [2021-07-09 16:51:38,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9401 to 9401. [2021-07-09 16:51:38,261 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) [2021-07-09 16:51:38,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9401 states to 9401 states and 36878 transitions. [2021-07-09 16:51:38,293 INFO L78 Accepts]: Start accepts. Automaton has 9401 states and 36878 transitions. Word has length 66 [2021-07-09 16:51:38,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:51:38,294 INFO L482 AbstractCegarLoop]: Abstraction has 9401 states and 36878 transitions. [2021-07-09 16:51:38,294 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) [2021-07-09 16:51:38,294 INFO L276 IsEmpty]: Start isEmpty. Operand 9401 states and 36878 transitions. [2021-07-09 16:51:38,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-07-09 16:51:38,310 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:51:38,310 INFO L508 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] [2021-07-09 16:51:38,310 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 16:51:38,310 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:51:38,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:51:38,311 INFO L82 PathProgramCache]: Analyzing trace with hash -653835235, now seen corresponding path program 1 times [2021-07-09 16:51:38,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:51:38,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460983729] [2021-07-09 16:51:38,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:51:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:51:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:51:38,564 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:51:38,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460983729] [2021-07-09 16:51:38,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460983729] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:51:38,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:51:38,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:51:38,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658128550] [2021-07-09 16:51:38,567 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:51:38,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:51:38,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:51:38,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:51:38,567 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) [2021-07-09 16:51:38,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:51:38,765 INFO L93 Difference]: Finished difference Result 9734 states and 37430 transitions. [2021-07-09 16:51:38,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:51:38,766 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 [2021-07-09 16:51:38,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:51:38,789 INFO L225 Difference]: With dead ends: 9734 [2021-07-09 16:51:38,789 INFO L226 Difference]: Without dead ends: 6854 [2021-07-09 16:51:38,790 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 103.6ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:51:38,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6854 states. [2021-07-09 16:51:38,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6854 to 6854. [2021-07-09 16:51:38,901 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) [2021-07-09 16:51:38,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6854 states to 6854 states and 26021 transitions. [2021-07-09 16:51:38,920 INFO L78 Accepts]: Start accepts. Automaton has 6854 states and 26021 transitions. Word has length 67 [2021-07-09 16:51:38,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:51:38,920 INFO L482 AbstractCegarLoop]: Abstraction has 6854 states and 26021 transitions. [2021-07-09 16:51:38,920 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) [2021-07-09 16:51:38,920 INFO L276 IsEmpty]: Start isEmpty. Operand 6854 states and 26021 transitions. [2021-07-09 16:51:38,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-09 16:51:38,933 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:51:38,933 INFO L508 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] [2021-07-09 16:51:38,933 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-09 16:51:38,933 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:51:38,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:51:38,934 INFO L82 PathProgramCache]: Analyzing trace with hash -810842276, now seen corresponding path program 1 times [2021-07-09 16:51:38,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:51:38,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985168779] [2021-07-09 16:51:38,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:51:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:51:39,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:51:39,064 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:51:39,064 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985168779] [2021-07-09 16:51:39,064 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985168779] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:51:39,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:51:39,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 16:51:39,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778713892] [2021-07-09 16:51:39,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 16:51:39,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:51:39,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 16:51:39,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-09 16:51:39,066 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) [2021-07-09 16:51:39,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:51:39,257 INFO L93 Difference]: Finished difference Result 5936 states and 22160 transitions. [2021-07-09 16:51:39,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 16:51:39,258 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 [2021-07-09 16:51:39,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:51:39,272 INFO L225 Difference]: With dead ends: 5936 [2021-07-09 16:51:39,272 INFO L226 Difference]: Without dead ends: 4532 [2021-07-09 16:51:39,273 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 134.6ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:51:39,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4532 states. [2021-07-09 16:51:39,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4532 to 4532. [2021-07-09 16:51:39,398 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) [2021-07-09 16:51:39,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 16733 transitions. [2021-07-09 16:51:39,408 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 16733 transitions. Word has length 69 [2021-07-09 16:51:39,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:51:39,408 INFO L482 AbstractCegarLoop]: Abstraction has 4532 states and 16733 transitions. [2021-07-09 16:51:39,408 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) [2021-07-09 16:51:39,408 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 16733 transitions. [2021-07-09 16:51:39,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-09 16:51:39,415 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:51:39,415 INFO L508 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] [2021-07-09 16:51:39,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-09 16:51:39,415 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:51:39,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:51:39,416 INFO L82 PathProgramCache]: Analyzing trace with hash 2057747741, now seen corresponding path program 1 times [2021-07-09 16:51:39,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:51:39,416 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81952892] [2021-07-09 16:51:39,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:51:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:51:39,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:51:39,487 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:51:39,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81952892] [2021-07-09 16:51:39,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81952892] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:51:39,488 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:51:39,488 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:51:39,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23837080] [2021-07-09 16:51:39,488 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:51:39,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:51:39,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:51:39,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:51:39,489 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) [2021-07-09 16:51:39,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:51:39,611 INFO L93 Difference]: Finished difference Result 6605 states and 24478 transitions. [2021-07-09 16:51:39,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 16:51:39,612 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 [2021-07-09 16:51:39,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:51:39,625 INFO L225 Difference]: With dead ends: 6605 [2021-07-09 16:51:39,625 INFO L226 Difference]: Without dead ends: 4116 [2021-07-09 16:51:39,626 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 90.2ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:51:39,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4116 states. [2021-07-09 16:51:39,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4116 to 3540. [2021-07-09 16:51:39,686 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) [2021-07-09 16:51:39,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 12853 transitions. [2021-07-09 16:51:39,694 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 12853 transitions. Word has length 71 [2021-07-09 16:51:39,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:51:39,694 INFO L482 AbstractCegarLoop]: Abstraction has 3540 states and 12853 transitions. [2021-07-09 16:51:39,694 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) [2021-07-09 16:51:39,694 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 12853 transitions. [2021-07-09 16:51:39,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-09 16:51:39,702 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:51:39,702 INFO L508 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] [2021-07-09 16:51:39,702 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-09 16:51:39,702 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:51:39,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:51:39,703 INFO L82 PathProgramCache]: Analyzing trace with hash 226914175, now seen corresponding path program 2 times [2021-07-09 16:51:39,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:51:39,703 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312784409] [2021-07-09 16:51:39,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:51:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:51:39,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:51:39,792 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:51:39,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312784409] [2021-07-09 16:51:39,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312784409] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:51:39,794 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:51:39,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:51:39,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422917999] [2021-07-09 16:51:39,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:51:39,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:51:39,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:51:39,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:51:39,796 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) [2021-07-09 16:51:39,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:51:39,892 INFO L93 Difference]: Finished difference Result 3378 states and 12259 transitions. [2021-07-09 16:51:39,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 16:51:39,892 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 [2021-07-09 16:51:39,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:51:39,893 INFO L225 Difference]: With dead ends: 3378 [2021-07-09 16:51:39,893 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 16:51:39,893 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 91.5ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:51:39,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 16:51:39,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 16:51:39,893 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) [2021-07-09 16:51:39,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 16:51:39,894 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2021-07-09 16:51:39,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:51:39,894 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 16:51:39,894 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) [2021-07-09 16:51:39,894 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 16:51:39,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:51:39,894 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-09 16:51:39,896 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 16:51:39,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 04:51:39 BasicIcfg [2021-07-09 16:51:39,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 16:51:39,899 INFO L168 Benchmark]: Toolchain (without parser) took 18646.20 ms. Allocated memory was 183.5 MB in the beginning and 6.5 GB in the end (delta: 6.3 GB). Free memory was 146.1 MB in the beginning and 5.0 GB in the end (delta: -4.9 GB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. [2021-07-09 16:51:39,899 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 183.5 MB. Free memory is still 164.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 16:51:39,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 482.71 ms. Allocated memory is still 183.5 MB. Free memory was 145.8 MB in the beginning and 157.3 MB in the end (delta: -11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-09 16:51:39,904 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.58 ms. Allocated memory is still 183.5 MB. Free memory was 157.3 MB in the beginning and 155.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:51:39,905 INFO L168 Benchmark]: Boogie Preprocessor took 21.30 ms. Allocated memory is still 183.5 MB. Free memory was 155.2 MB in the beginning and 154.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 16:51:39,905 INFO L168 Benchmark]: RCFGBuilder took 488.97 ms. Allocated memory is still 183.5 MB. Free memory was 154.2 MB in the beginning and 127.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-07-09 16:51:39,905 INFO L168 Benchmark]: TraceAbstraction took 17589.04 ms. Allocated memory was 183.5 MB in the beginning and 6.5 GB in the end (delta: 6.3 GB). Free memory was 127.4 MB in the beginning and 5.0 GB in the end (delta: -4.9 GB). Peak memory consumption was 1.4 GB. Max. memory is 8.0 GB. [2021-07-09 16:51:39,914 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 183.5 MB. Free memory is still 164.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 482.71 ms. Allocated memory is still 183.5 MB. Free memory was 145.8 MB in the beginning and 157.3 MB in the end (delta: -11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.58 ms. Allocated memory is still 183.5 MB. Free memory was 157.3 MB in the beginning and 155.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 21.30 ms. Allocated memory is still 183.5 MB. Free memory was 155.2 MB in the beginning and 154.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 488.97 ms. Allocated memory is still 183.5 MB. Free memory was 154.2 MB in the beginning and 127.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17589.04 ms. Allocated memory was 183.5 MB in the beginning and 6.5 GB in the end (delta: 6.3 GB). Free memory was 127.4 MB in the beginning and 5.0 GB in the end (delta: -4.9 GB). Peak memory consumption was 1.4 GB. Max. memory is 8.0 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 128 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17461.8ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 574.5ms, AutomataDifference: 6357.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1475.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1531 SDtfs, 2707 SDslu, 5414 SDs, 0 SdLazy, 601 SolverSat, 135 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 456.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1852.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28884occurred 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: 6892.3ms AutomataMinimizationTime, 12 MinimizatonAttempts, 1730 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.4ms SsaConstructionTime, 208.1ms SatisfiabilityAnalysisTime, 1493.0ms InterpolantComputationTime, 771 NumberOfCodeBlocks, 771 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 759 ConstructedInterpolants, 0 QuantifiedInterpolants, 3475 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...