/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:32:22,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:32:22,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:32:22,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 17:32:22,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:32:22,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:32:22,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:32:22,694 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 [2021-03-10 17:32:22,723 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:32:22,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:32:22,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:32:22,724 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:32:22,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:32:22,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:32:22,726 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:32:22,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:32:22,727 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:32:22,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:32:22,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:32:22,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:32:22,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:32:22,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:32:22,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:32:22,728 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:32:22,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:32:22,728 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:32:22,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:32:22,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:32:22,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:32:22,728 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:32:22,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:32:22,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:32:22,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:32:22,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:32:22,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:32:22,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:32:22,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:32:22,729 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:32:22,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:32:22,730 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:32:22,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:32:23,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:32:23,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:32:23,017 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:32:23,017 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:32:23,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-03-10 17:32:23,079 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c498f397c/529cf4e613f14a029f9b92e7d50fb3ff/FLAG5e3c26a59 [2021-03-10 17:32:23,540 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:32:23,541 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-03-10 17:32:23,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c498f397c/529cf4e613f14a029f9b92e7d50fb3ff/FLAG5e3c26a59 [2021-03-10 17:32:23,565 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c498f397c/529cf4e613f14a029f9b92e7d50fb3ff [2021-03-10 17:32:23,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:32:23,572 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:32:23,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:32:23,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:32:23,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:32:23,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:32:23" (1/1) ... [2021-03-10 17:32:23,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ffc3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:32:23, skipping insertion in model container [2021-03-10 17:32:23,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:32:23" (1/1) ... [2021-03-10 17:32:23,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:32:23,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:32:23,777 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i[949,962] [2021-03-10 17:32:23,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:32:23,880 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:32:23,888 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i[949,962] [2021-03-10 17:32:23,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:32:23,971 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:32:23,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:32:23 WrapperNode [2021-03-10 17:32:23,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:32:23,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:32:23,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:32:23,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:32:23,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:32:23" (1/1) ... [2021-03-10 17:32:23,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:32:23" (1/1) ... [2021-03-10 17:32:23,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:32:24,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:32:24,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:32:24,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:32:24,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:32:23" (1/1) ... [2021-03-10 17:32:24,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:32:23" (1/1) ... [2021-03-10 17:32:24,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:32:23" (1/1) ... [2021-03-10 17:32:24,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:32:23" (1/1) ... [2021-03-10 17:32:24,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:32:23" (1/1) ... [2021-03-10 17:32:24,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:32:23" (1/1) ... [2021-03-10 17:32:24,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:32:23" (1/1) ... [2021-03-10 17:32:24,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:32:24,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:32:24,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:32:24,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:32:24,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:32:23" (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 [2021-03-10 17:32:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:32:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 17:32:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:32:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:32:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-10 17:32:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-10 17:32:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-10 17:32:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-10 17:32:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-10 17:32:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-10 17:32:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-10 17:32:24,094 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-10 17:32:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:32:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 17:32:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:32:24,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:32:24,095 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 17:32:24,446 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:32:24,447 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-10 17:32:24,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:32:24 BoogieIcfgContainer [2021-03-10 17:32:24,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:32:24,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:32:24,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:32:24,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:32:24,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:32:23" (1/3) ... [2021-03-10 17:32:24,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55706660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:32:24, skipping insertion in model container [2021-03-10 17:32:24,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:32:23" (2/3) ... [2021-03-10 17:32:24,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55706660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:32:24, skipping insertion in model container [2021-03-10 17:32:24,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:32:24" (3/3) ... [2021-03-10 17:32:24,454 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2021-03-10 17:32:24,461 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:32:24,461 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:32:24,465 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 17:32:24,465 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:32:24,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,492 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,492 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,492 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,493 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,495 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,498 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,499 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,499 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,499 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,500 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,500 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,501 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,501 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,501 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,501 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,501 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,502 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,502 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,502 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,502 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,502 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,502 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,502 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,502 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,502 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,503 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,503 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,503 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,503 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,503 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,504 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,505 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,505 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,505 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,510 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,510 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,510 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,511 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,512 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,512 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,512 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,512 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,513 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,514 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:32:24,514 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 17:32:24,526 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-10 17:32:24,538 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:32:24,538 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:32:24,539 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:32:24,539 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:32:24,539 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:32:24,539 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:32:24,539 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:32:24,539 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:32:24,546 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 86 transitions, 192 flow [2021-03-10 17:32:29,651 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 49020 states, 49018 states have (on average 4.388510343139255) internal successors, (215116), 49019 states have internal predecessors, (215116), 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) [2021-03-10 17:32:29,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 49020 states, 49018 states have (on average 4.388510343139255) internal successors, (215116), 49019 states have internal predecessors, (215116), 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) [2021-03-10 17:32:29,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 17:32:29,797 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:32:29,797 INFO L519 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] [2021-03-10 17:32:29,798 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:32:29,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:32:29,803 INFO L82 PathProgramCache]: Analyzing trace with hash 117794534, now seen corresponding path program 1 times [2021-03-10 17:32:29,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:32:29,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122192351] [2021-03-10 17:32:29,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:32:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:32:30,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:32:30,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122192351] [2021-03-10 17:32:30,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:32:30,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:32:30,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264470790] [2021-03-10 17:32:30,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:32:30,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:32:30,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:32:30,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:32:30,378 INFO L87 Difference]: Start difference. First operand has 49020 states, 49018 states have (on average 4.388510343139255) internal successors, (215116), 49019 states have internal predecessors, (215116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2021-03-10 17:32:31,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:32:31,371 INFO L93 Difference]: Finished difference Result 66408 states and 285208 transitions. [2021-03-10 17:32:31,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:32:31,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2021-03-10 17:32:31,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:32:31,584 INFO L225 Difference]: With dead ends: 66408 [2021-03-10 17:32:31,585 INFO L226 Difference]: Without dead ends: 21300 [2021-03-10 17:32:31,585 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 123.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:32:31,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21300 states. [2021-03-10 17:32:32,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21300 to 21300. [2021-03-10 17:32:32,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21300 states, 21299 states have (on average 4.212216535987605) internal successors, (89716), 21299 states have internal predecessors, (89716), 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) [2021-03-10 17:32:32,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21300 states to 21300 states and 89716 transitions. [2021-03-10 17:32:32,543 INFO L78 Accepts]: Start accepts. Automaton has 21300 states and 89716 transitions. Word has length 44 [2021-03-10 17:32:32,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:32:32,544 INFO L480 AbstractCegarLoop]: Abstraction has 21300 states and 89716 transitions. [2021-03-10 17:32:32,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2021-03-10 17:32:32,545 INFO L276 IsEmpty]: Start isEmpty. Operand 21300 states and 89716 transitions. [2021-03-10 17:32:32,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-03-10 17:32:32,569 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:32:32,569 INFO L519 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] [2021-03-10 17:32:32,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:32:32,569 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:32:32,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:32:32,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1196148409, now seen corresponding path program 1 times [2021-03-10 17:32:32,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:32:32,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781484798] [2021-03-10 17:32:32,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:32:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:32:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:32:32,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781484798] [2021-03-10 17:32:32,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:32:32,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:32:32,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186791766] [2021-03-10 17:32:32,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:32:32,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:32:32,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:32:32,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:32:32,683 INFO L87 Difference]: Start difference. First operand 21300 states and 89716 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-03-10 17:32:33,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:32:33,301 INFO L93 Difference]: Finished difference Result 44856 states and 186816 transitions. [2021-03-10 17:32:33,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:32:33,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-03-10 17:32:33,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:32:33,552 INFO L225 Difference]: With dead ends: 44856 [2021-03-10 17:32:33,553 INFO L226 Difference]: Without dead ends: 31896 [2021-03-10 17:32:33,555 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 213.5ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:32:33,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31896 states. [2021-03-10 17:32:34,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31896 to 26424. [2021-03-10 17:32:34,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26424 states, 26423 states have (on average 4.162888392688188) internal successors, (109996), 26423 states have internal predecessors, (109996), 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) [2021-03-10 17:32:34,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26424 states to 26424 states and 109996 transitions. [2021-03-10 17:32:34,489 INFO L78 Accepts]: Start accepts. Automaton has 26424 states and 109996 transitions. Word has length 46 [2021-03-10 17:32:34,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:32:34,490 INFO L480 AbstractCegarLoop]: Abstraction has 26424 states and 109996 transitions. [2021-03-10 17:32:34,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-03-10 17:32:34,490 INFO L276 IsEmpty]: Start isEmpty. Operand 26424 states and 109996 transitions. [2021-03-10 17:32:34,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-03-10 17:32:34,524 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:32:34,524 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:32:34,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:32:34,525 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:32:34,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:32:34,525 INFO L82 PathProgramCache]: Analyzing trace with hash -29327456, now seen corresponding path program 1 times [2021-03-10 17:32:34,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:32:34,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722788211] [2021-03-10 17:32:34,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:32:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:32:34,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:32:34,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722788211] [2021-03-10 17:32:34,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:32:34,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:32:34,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366745242] [2021-03-10 17:32:34,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:32:34,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:32:34,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:32:34,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:32:34,622 INFO L87 Difference]: Start difference. First operand 26424 states and 109996 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:35,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:32:35,131 INFO L93 Difference]: Finished difference Result 37504 states and 154120 transitions. [2021-03-10 17:32:35,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 17:32:35,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-03-10 17:32:35,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:32:35,234 INFO L225 Difference]: With dead ends: 37504 [2021-03-10 17:32:35,234 INFO L226 Difference]: Without dead ends: 29616 [2021-03-10 17:32:35,235 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 157.2ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:32:35,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29616 states. [2021-03-10 17:32:35,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29616 to 24900. [2021-03-10 17:32:35,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24900 states, 24899 states have (on average 4.146752881641833) internal successors, (103250), 24899 states have internal predecessors, (103250), 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) [2021-03-10 17:32:36,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24900 states to 24900 states and 103250 transitions. [2021-03-10 17:32:36,170 INFO L78 Accepts]: Start accepts. Automaton has 24900 states and 103250 transitions. Word has length 48 [2021-03-10 17:32:36,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:32:36,170 INFO L480 AbstractCegarLoop]: Abstraction has 24900 states and 103250 transitions. [2021-03-10 17:32:36,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:36,170 INFO L276 IsEmpty]: Start isEmpty. Operand 24900 states and 103250 transitions. [2021-03-10 17:32:36,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-03-10 17:32:36,208 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:32:36,208 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:32:36,209 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:32:36,209 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:32:36,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:32:36,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1798634874, now seen corresponding path program 1 times [2021-03-10 17:32:36,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:32:36,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374774525] [2021-03-10 17:32:36,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:32:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:32:36,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:32:36,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374774525] [2021-03-10 17:32:36,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:32:36,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 17:32:36,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340284793] [2021-03-10 17:32:36,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 17:32:36,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:32:36,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 17:32:36,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:32:36,331 INFO L87 Difference]: Start difference. First operand 24900 states and 103250 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:36,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:32:36,665 INFO L93 Difference]: Finished difference Result 38972 states and 159496 transitions. [2021-03-10 17:32:36,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:32:36,665 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-03-10 17:32:36,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:32:36,721 INFO L225 Difference]: With dead ends: 38972 [2021-03-10 17:32:36,721 INFO L226 Difference]: Without dead ends: 20312 [2021-03-10 17:32:36,722 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 142.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:32:36,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20312 states. [2021-03-10 17:32:37,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20312 to 17624. [2021-03-10 17:32:37,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17624 states, 17623 states have (on average 4.054814730749588) internal successors, (71458), 17623 states have internal predecessors, (71458), 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) [2021-03-10 17:32:37,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17624 states to 17624 states and 71458 transitions. [2021-03-10 17:32:37,316 INFO L78 Accepts]: Start accepts. Automaton has 17624 states and 71458 transitions. Word has length 48 [2021-03-10 17:32:37,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:32:37,317 INFO L480 AbstractCegarLoop]: Abstraction has 17624 states and 71458 transitions. [2021-03-10 17:32:37,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:37,317 INFO L276 IsEmpty]: Start isEmpty. Operand 17624 states and 71458 transitions. [2021-03-10 17:32:37,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-03-10 17:32:37,342 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:32:37,343 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:32:37,343 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:32:37,343 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:32:37,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:32:37,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1452665303, now seen corresponding path program 1 times [2021-03-10 17:32:37,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:32:37,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977111221] [2021-03-10 17:32:37,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:32:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:32:37,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:32:37,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977111221] [2021-03-10 17:32:37,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:32:37,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:32:37,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955317879] [2021-03-10 17:32:37,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:32:37,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:32:37,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:32:37,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:32:37,400 INFO L87 Difference]: Start difference. First operand 17624 states and 71458 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:37,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:32:37,552 INFO L93 Difference]: Finished difference Result 18904 states and 76242 transitions. [2021-03-10 17:32:37,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:32:37,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-03-10 17:32:37,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:32:37,592 INFO L225 Difference]: With dead ends: 18904 [2021-03-10 17:32:37,592 INFO L226 Difference]: Without dead ends: 16664 [2021-03-10 17:32:37,592 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 74.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:32:37,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16664 states. [2021-03-10 17:32:38,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16664 to 15768. [2021-03-10 17:32:38,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15768 states, 15767 states have (on average 4.036912538846959) internal successors, (63650), 15767 states have internal predecessors, (63650), 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) [2021-03-10 17:32:38,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15768 states to 15768 states and 63650 transitions. [2021-03-10 17:32:38,116 INFO L78 Accepts]: Start accepts. Automaton has 15768 states and 63650 transitions. Word has length 50 [2021-03-10 17:32:38,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:32:38,116 INFO L480 AbstractCegarLoop]: Abstraction has 15768 states and 63650 transitions. [2021-03-10 17:32:38,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:38,116 INFO L276 IsEmpty]: Start isEmpty. Operand 15768 states and 63650 transitions. [2021-03-10 17:32:38,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-03-10 17:32:38,138 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:32:38,138 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:32:38,138 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 17:32:38,138 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:32:38,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:32:38,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1341204016, now seen corresponding path program 1 times [2021-03-10 17:32:38,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:32:38,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917948112] [2021-03-10 17:32:38,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:32:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:32:38,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:32:38,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917948112] [2021-03-10 17:32:38,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:32:38,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:32:38,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424043546] [2021-03-10 17:32:38,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:32:38,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:32:38,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:32:38,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:32:38,211 INFO L87 Difference]: Start difference. First operand 15768 states and 63650 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:38,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:32:38,641 INFO L93 Difference]: Finished difference Result 30808 states and 122818 transitions. [2021-03-10 17:32:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:32:38,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-03-10 17:32:38,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:32:38,685 INFO L225 Difference]: With dead ends: 30808 [2021-03-10 17:32:38,686 INFO L226 Difference]: Without dead ends: 15992 [2021-03-10 17:32:38,686 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 141.0ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:32:38,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15992 states. [2021-03-10 17:32:38,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15992 to 12920. [2021-03-10 17:32:38,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12920 states, 12919 states have (on average 3.974456227262172) internal successors, (51346), 12919 states have internal predecessors, (51346), 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) [2021-03-10 17:32:38,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12920 states to 12920 states and 51346 transitions. [2021-03-10 17:32:38,952 INFO L78 Accepts]: Start accepts. Automaton has 12920 states and 51346 transitions. Word has length 51 [2021-03-10 17:32:38,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:32:38,952 INFO L480 AbstractCegarLoop]: Abstraction has 12920 states and 51346 transitions. [2021-03-10 17:32:38,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:38,952 INFO L276 IsEmpty]: Start isEmpty. Operand 12920 states and 51346 transitions. [2021-03-10 17:32:38,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-03-10 17:32:38,969 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:32:38,969 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:32:38,969 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 17:32:38,969 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:32:38,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:32:38,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1041427222, now seen corresponding path program 1 times [2021-03-10 17:32:38,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:32:38,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895621728] [2021-03-10 17:32:38,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:32:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:32:39,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:32:39,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895621728] [2021-03-10 17:32:39,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:32:39,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:32:39,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570371928] [2021-03-10 17:32:39,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:32:39,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:32:39,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:32:39,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:32:39,047 INFO L87 Difference]: Start difference. First operand 12920 states and 51346 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:39,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:32:39,319 INFO L93 Difference]: Finished difference Result 19000 states and 75270 transitions. [2021-03-10 17:32:39,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 17:32:39,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-03-10 17:32:39,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:32:39,346 INFO L225 Difference]: With dead ends: 19000 [2021-03-10 17:32:39,346 INFO L226 Difference]: Without dead ends: 9900 [2021-03-10 17:32:39,346 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 70.3ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:32:39,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9900 states. [2021-03-10 17:32:39,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9900 to 9900. [2021-03-10 17:32:39,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9900 states, 9899 states have (on average 3.9381755732902315) internal successors, (38984), 9899 states have internal predecessors, (38984), 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) [2021-03-10 17:32:39,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9900 states to 9900 states and 38984 transitions. [2021-03-10 17:32:39,566 INFO L78 Accepts]: Start accepts. Automaton has 9900 states and 38984 transitions. Word has length 52 [2021-03-10 17:32:39,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:32:39,566 INFO L480 AbstractCegarLoop]: Abstraction has 9900 states and 38984 transitions. [2021-03-10 17:32:39,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:39,566 INFO L276 IsEmpty]: Start isEmpty. Operand 9900 states and 38984 transitions. [2021-03-10 17:32:39,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-03-10 17:32:39,580 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:32:39,580 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:32:39,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-10 17:32:39,580 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:32:39,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:32:39,581 INFO L82 PathProgramCache]: Analyzing trace with hash 332835552, now seen corresponding path program 2 times [2021-03-10 17:32:39,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:32:39,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650779641] [2021-03-10 17:32:39,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:32:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:32:39,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:32:39,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650779641] [2021-03-10 17:32:39,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:32:39,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:32:39,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476947653] [2021-03-10 17:32:39,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:32:39,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:32:39,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:32:39,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:32:39,675 INFO L87 Difference]: Start difference. First operand 9900 states and 38984 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:39,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:32:39,839 INFO L93 Difference]: Finished difference Result 13652 states and 53188 transitions. [2021-03-10 17:32:39,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:32:39,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-03-10 17:32:39,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:32:39,864 INFO L225 Difference]: With dead ends: 13652 [2021-03-10 17:32:39,864 INFO L226 Difference]: Without dead ends: 9556 [2021-03-10 17:32:39,864 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 74.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:32:39,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9556 states. [2021-03-10 17:32:40,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9556 to 9556. [2021-03-10 17:32:40,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9556 states, 9555 states have (on average 3.918785975928833) internal successors, (37444), 9555 states have internal predecessors, (37444), 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) [2021-03-10 17:32:40,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9556 states to 9556 states and 37444 transitions. [2021-03-10 17:32:40,071 INFO L78 Accepts]: Start accepts. Automaton has 9556 states and 37444 transitions. Word has length 52 [2021-03-10 17:32:40,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:32:40,071 INFO L480 AbstractCegarLoop]: Abstraction has 9556 states and 37444 transitions. [2021-03-10 17:32:40,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:40,071 INFO L276 IsEmpty]: Start isEmpty. Operand 9556 states and 37444 transitions. [2021-03-10 17:32:40,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-03-10 17:32:40,085 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:32:40,085 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:32:40,085 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-10 17:32:40,085 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:32:40,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:32:40,085 INFO L82 PathProgramCache]: Analyzing trace with hash -309184454, now seen corresponding path program 1 times [2021-03-10 17:32:40,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:32:40,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665666494] [2021-03-10 17:32:40,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:32:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:32:40,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:32:40,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665666494] [2021-03-10 17:32:40,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:32:40,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:32:40,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309178556] [2021-03-10 17:32:40,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:32:40,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:32:40,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:32:40,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:32:40,146 INFO L87 Difference]: Start difference. First operand 9556 states and 37444 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:40,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:32:40,399 INFO L93 Difference]: Finished difference Result 11980 states and 46119 transitions. [2021-03-10 17:32:40,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:32:40,399 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-03-10 17:32:40,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:32:40,416 INFO L225 Difference]: With dead ends: 11980 [2021-03-10 17:32:40,416 INFO L226 Difference]: Without dead ends: 8140 [2021-03-10 17:32:40,417 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 92.4ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-03-10 17:32:40,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8140 states. [2021-03-10 17:32:40,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8140 to 8140. [2021-03-10 17:32:40,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8140 states, 8139 states have (on average 3.8421181963386166) internal successors, (31271), 8139 states have internal predecessors, (31271), 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) [2021-03-10 17:32:40,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8140 states to 8140 states and 31271 transitions. [2021-03-10 17:32:40,547 INFO L78 Accepts]: Start accepts. Automaton has 8140 states and 31271 transitions. Word has length 53 [2021-03-10 17:32:40,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:32:40,547 INFO L480 AbstractCegarLoop]: Abstraction has 8140 states and 31271 transitions. [2021-03-10 17:32:40,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:40,548 INFO L276 IsEmpty]: Start isEmpty. Operand 8140 states and 31271 transitions. [2021-03-10 17:32:40,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-03-10 17:32:40,558 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:32:40,558 INFO L519 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] [2021-03-10 17:32:40,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-10 17:32:40,558 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:32:40,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:32:40,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1654841013, now seen corresponding path program 1 times [2021-03-10 17:32:40,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:32:40,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109241826] [2021-03-10 17:32:40,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:32:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:32:40,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:32:40,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109241826] [2021-03-10 17:32:40,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:32:40,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 17:32:40,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006267118] [2021-03-10 17:32:40,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 17:32:40,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:32:40,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 17:32:40,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:32:40,635 INFO L87 Difference]: Start difference. First operand 8140 states and 31271 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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) [2021-03-10 17:32:40,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:32:40,773 INFO L93 Difference]: Finished difference Result 8473 states and 31769 transitions. [2021-03-10 17:32:40,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:32:40,774 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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 54 [2021-03-10 17:32:40,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:32:40,784 INFO L225 Difference]: With dead ends: 8473 [2021-03-10 17:32:40,785 INFO L226 Difference]: Without dead ends: 5593 [2021-03-10 17:32:40,785 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 89.5ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:32:40,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5593 states. [2021-03-10 17:32:40,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5593 to 5593. [2021-03-10 17:32:40,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5593 states, 5592 states have (on average 3.6988555078683834) internal successors, (20684), 5592 states have internal predecessors, (20684), 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) [2021-03-10 17:32:40,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5593 states to 5593 states and 20684 transitions. [2021-03-10 17:32:40,875 INFO L78 Accepts]: Start accepts. Automaton has 5593 states and 20684 transitions. Word has length 54 [2021-03-10 17:32:40,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:32:40,875 INFO L480 AbstractCegarLoop]: Abstraction has 5593 states and 20684 transitions. [2021-03-10 17:32:40,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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) [2021-03-10 17:32:40,875 INFO L276 IsEmpty]: Start isEmpty. Operand 5593 states and 20684 transitions. [2021-03-10 17:32:40,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-03-10 17:32:40,882 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:32:40,882 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:32:40,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-10 17:32:40,882 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:32:40,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:32:40,882 INFO L82 PathProgramCache]: Analyzing trace with hash 170498356, now seen corresponding path program 1 times [2021-03-10 17:32:40,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:32:40,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021455221] [2021-03-10 17:32:40,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:32:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:32:40,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:32:40,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021455221] [2021-03-10 17:32:40,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:32:40,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:32:40,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623809022] [2021-03-10 17:32:40,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:32:40,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:32:40,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:32:40,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:32:40,945 INFO L87 Difference]: Start difference. First operand 5593 states and 20684 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:41,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:32:41,033 INFO L93 Difference]: Finished difference Result 7408 states and 27099 transitions. [2021-03-10 17:32:41,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 17:32:41,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-03-10 17:32:41,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:32:41,041 INFO L225 Difference]: With dead ends: 7408 [2021-03-10 17:32:41,041 INFO L226 Difference]: Without dead ends: 4010 [2021-03-10 17:32:41,041 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:32:41,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4010 states. [2021-03-10 17:32:41,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4010 to 3524. [2021-03-10 17:32:41,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 3523 states have (on average 3.5200113539596933) internal successors, (12401), 3523 states have internal predecessors, (12401), 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) [2021-03-10 17:32:41,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 12401 transitions. [2021-03-10 17:32:41,095 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 12401 transitions. Word has length 56 [2021-03-10 17:32:41,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:32:41,095 INFO L480 AbstractCegarLoop]: Abstraction has 3524 states and 12401 transitions. [2021-03-10 17:32:41,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:41,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 12401 transitions. [2021-03-10 17:32:41,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-03-10 17:32:41,099 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:32:41,099 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:32:41,099 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-10 17:32:41,100 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:32:41,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:32:41,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1491276790, now seen corresponding path program 1 times [2021-03-10 17:32:41,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:32:41,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5970122] [2021-03-10 17:32:41,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:32:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:32:41,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:32:41,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5970122] [2021-03-10 17:32:41,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:32:41,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-10 17:32:41,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699628042] [2021-03-10 17:32:41,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-10 17:32:41,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:32:41,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-10 17:32:41,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-10 17:32:41,196 INFO L87 Difference]: Start difference. First operand 3524 states and 12401 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:41,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:32:41,281 INFO L93 Difference]: Finished difference Result 2228 states and 7568 transitions. [2021-03-10 17:32:41,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:32:41,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-03-10 17:32:41,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:32:41,281 INFO L225 Difference]: With dead ends: 2228 [2021-03-10 17:32:41,281 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 17:32:41,282 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 81.0ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:32:41,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 17:32:41,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 17:32:41,282 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) [2021-03-10 17:32:41,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 17:32:41,283 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2021-03-10 17:32:41,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:32:41,283 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 17:32:41,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:32:41,283 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 17:32:41,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 17:32:41,283 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-10 17:32:41,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 05:32:41 BasicIcfg [2021-03-10 17:32:41,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 17:32:41,287 INFO L168 Benchmark]: Toolchain (without parser) took 17717.38 ms. Allocated memory was 325.1 MB in the beginning and 9.8 GB in the end (delta: 9.5 GB). Free memory was 288.4 MB in the beginning and 8.2 GB in the end (delta: -7.9 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-03-10 17:32:41,287 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 325.1 MB. Free memory was 306.7 MB in the beginning and 306.6 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:32:41,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.56 ms. Allocated memory is still 325.1 MB. Free memory was 287.7 MB in the beginning and 286.9 MB in the end (delta: 800.7 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:32:41,293 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.01 ms. Allocated memory is still 325.1 MB. Free memory was 286.9 MB in the beginning and 284.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:32:41,295 INFO L168 Benchmark]: Boogie Preprocessor took 15.63 ms. Allocated memory is still 325.1 MB. Free memory was 284.8 MB in the beginning and 283.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:32:41,295 INFO L168 Benchmark]: RCFGBuilder took 432.50 ms. Allocated memory is still 325.1 MB. Free memory was 283.7 MB in the beginning and 257.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-10 17:32:41,297 INFO L168 Benchmark]: TraceAbstraction took 16836.17 ms. Allocated memory was 325.1 MB in the beginning and 9.8 GB in the end (delta: 9.5 GB). Free memory was 256.5 MB in the beginning and 8.2 GB in the end (delta: -7.9 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-03-10 17:32:41,299 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 325.1 MB. Free memory was 306.7 MB in the beginning and 306.6 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 397.56 ms. Allocated memory is still 325.1 MB. Free memory was 287.7 MB in the beginning and 286.9 MB in the end (delta: 800.7 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.01 ms. Allocated memory is still 325.1 MB. Free memory was 286.9 MB in the beginning and 284.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.63 ms. Allocated memory is still 325.1 MB. Free memory was 284.8 MB in the beginning and 283.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 432.50 ms. Allocated memory is still 325.1 MB. Free memory was 283.7 MB in the beginning and 257.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 16836.17 ms. Allocated memory was 325.1 MB in the beginning and 9.8 GB in the end (delta: 9.5 GB). Free memory was 256.5 MB in the beginning and 8.2 GB in the end (delta: -7.9 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16746.6ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 352.9ms, AutomataDifference: 4962.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5112.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1391 SDtfs, 2580 SDslu, 4707 SDs, 0 SdLazy, 568 SolverSat, 126 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 461.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1321.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=49020occurred in iteration=0, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 4902.0ms AutomataMinimizationTime, 12 MinimizatonAttempts, 17330 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.0ms SsaConstructionTime, 299.0ms SatisfiabilityAnalysisTime, 943.8ms InterpolantComputationTime, 610 NumberOfCodeBlocks, 610 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 598 ConstructedInterpolants, 0 QuantifiedInterpolants, 1702 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...