/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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 23:37:55,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 23:37:55,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 23:37:55,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 23:37:55,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 23:37:55,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 23:37:55,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 23:37:55,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 23:37:55,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 23:37:55,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 23:37:55,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 23:37:55,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 23:37:55,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 23:37:55,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 23:37:55,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 23:37:55,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 23:37:55,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-21 23:37:55,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 23:37:55,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 23:37:55,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 23:37:55,472 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-Separate.epf [2021-05-21 23:37:55,499 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 23:37:55,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 23:37:55,499 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 23:37:55,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 23:37:55,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 23:37:55,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 23:37:55,500 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 23:37:55,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 23:37:55,501 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 23:37:55,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 23:37:55,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 23:37:55,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 23:37:55,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 23:37:55,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 23:37:55,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 23:37:55,501 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 23:37:55,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 23:37:55,502 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 23:37:55,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 23:37:55,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 23:37:55,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 23:37:55,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 23:37:55,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 23:37:55,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 23:37:55,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 23:37:55,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 23:37:55,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 23:37:55,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 23:37:55,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 23:37:55,503 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 23:37:55,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 23:37:55,503 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 23:37:55,504 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 23:37:55,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 23:37:55,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 23:37:55,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 23:37:55,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 23:37:55,789 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 23:37:55,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i [2021-05-21 23:37:55,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bc8afa40/f08e9bc10ea546059db57fe8a8150df3/FLAG8607e34a1 [2021-05-21 23:37:56,367 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 23:37:56,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i [2021-05-21 23:37:56,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bc8afa40/f08e9bc10ea546059db57fe8a8150df3/FLAG8607e34a1 [2021-05-21 23:37:56,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bc8afa40/f08e9bc10ea546059db57fe8a8150df3 [2021-05-21 23:37:56,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 23:37:56,841 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 23:37:56,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 23:37:56,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 23:37:56,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 23:37:56,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:37:56" (1/1) ... [2021-05-21 23:37:56,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a1fbaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:56, skipping insertion in model container [2021-05-21 23:37:56,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:37:56" (1/1) ... [2021-05-21 23:37:56,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 23:37:56,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 23:37:57,074 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i[950,963] [2021-05-21 23:37:57,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:37:57,253 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 23:37:57,263 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i[950,963] [2021-05-21 23:37:57,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:37:57,372 INFO L208 MainTranslator]: Completed translation [2021-05-21 23:37:57,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:57 WrapperNode [2021-05-21 23:37:57,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 23:37:57,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 23:37:57,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 23:37:57,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 23:37:57,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:57" (1/1) ... [2021-05-21 23:37:57,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:57" (1/1) ... [2021-05-21 23:37:57,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 23:37:57,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 23:37:57,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 23:37:57,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 23:37:57,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:57" (1/1) ... [2021-05-21 23:37:57,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:57" (1/1) ... [2021-05-21 23:37:57,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:57" (1/1) ... [2021-05-21 23:37:57,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:57" (1/1) ... [2021-05-21 23:37:57,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:57" (1/1) ... [2021-05-21 23:37:57,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:57" (1/1) ... [2021-05-21 23:37:57,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:57" (1/1) ... [2021-05-21 23:37:57,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 23:37:57,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 23:37:57,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 23:37:57,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 23:37:57,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:57" (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 [2021-05-21 23:37:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 23:37:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 23:37:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 23:37:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 23:37:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 23:37:57,558 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 23:37:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 23:37:57,558 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 23:37:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-05-21 23:37:57,559 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-05-21 23:37:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 23:37:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 23:37:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 23:37:57,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 23:37:57,561 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 23:37:58,025 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 23:37:58,026 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 23:37:58,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:37:58 BoogieIcfgContainer [2021-05-21 23:37:58,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 23:37:58,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 23:37:58,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 23:37:58,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 23:37:58,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 11:37:56" (1/3) ... [2021-05-21 23:37:58,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f75214c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:37:58, skipping insertion in model container [2021-05-21 23:37:58,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:57" (2/3) ... [2021-05-21 23:37:58,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f75214c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:37:58, skipping insertion in model container [2021-05-21 23:37:58,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:37:58" (3/3) ... [2021-05-21 23:37:58,036 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_tso.oepc.i [2021-05-21 23:37:58,043 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 23:37:58,044 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 23:37:58,044 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 23:37:58,044 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 23:37:58,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,080 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,081 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,081 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,083 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,085 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,085 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,085 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,086 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,092 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,092 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,093 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,093 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,094 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,094 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,094 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,094 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,094 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,095 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,095 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,095 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,098 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,098 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,098 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,099 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,103 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,103 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,103 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,104 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,105 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,105 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:58,109 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 23:37:58,130 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-21 23:37:58,158 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:37:58,158 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:37:58,158 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:37:58,158 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:37:58,159 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:37:58,159 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:37:58,159 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:37:58,159 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 23:37:58,176 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-05-21 23:37:58,691 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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) [2021-05-21 23:37:58,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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) [2021-05-21 23:37:58,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-21 23:37:58,787 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:58,788 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:37:58,788 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:58,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:58,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1943773822, now seen corresponding path program 1 times [2021-05-21 23:37:58,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:58,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997976472] [2021-05-21 23:37:58,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:59,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:37:59,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:59,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997976472] [2021-05-21 23:37:59,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997976472] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:59,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:59,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:37:59,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901620051] [2021-05-21 23:37:59,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:37:59,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:59,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:37:59,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:37:59,300 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:37:59,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:59,785 INFO L93 Difference]: Finished difference Result 20524 states and 70683 transitions. [2021-05-21 23:37:59,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:37:59,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-05-21 23:37:59,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:59,843 INFO L225 Difference]: With dead ends: 20524 [2021-05-21 23:37:59,844 INFO L226 Difference]: Without dead ends: 7182 [2021-05-21 23:37:59,845 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 207.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:37:59,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7182 states. [2021-05-21 23:38:00,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7182 to 6060. [2021-05-21 23:38:00,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6060 states, 6059 states have (on average 3.368872751279089) internal successors, (20412), 6059 states have internal predecessors, (20412), 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) [2021-05-21 23:38:00,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6060 states to 6060 states and 20412 transitions. [2021-05-21 23:38:00,371 INFO L78 Accepts]: Start accepts. Automaton has 6060 states and 20412 transitions. Word has length 49 [2021-05-21 23:38:00,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:38:00,375 INFO L482 AbstractCegarLoop]: Abstraction has 6060 states and 20412 transitions. [2021-05-21 23:38:00,376 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:38:00,376 INFO L276 IsEmpty]: Start isEmpty. Operand 6060 states and 20412 transitions. [2021-05-21 23:38:00,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-21 23:38:00,395 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:38:00,396 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:38:00,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 23:38:00,396 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:38:00,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:38:00,398 INFO L82 PathProgramCache]: Analyzing trace with hash -303430371, now seen corresponding path program 1 times [2021-05-21 23:38:00,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:38:00,399 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597487512] [2021-05-21 23:38:00,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:38:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:38:00,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:38:00,563 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:38:00,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597487512] [2021-05-21 23:38:00,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597487512] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:38:00,563 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:38:00,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:38:00,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812532293] [2021-05-21 23:38:00,564 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:38:00,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:38:00,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:38:00,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:38:00,566 INFO L87 Difference]: Start difference. First operand 6060 states and 20412 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2021-05-21 23:38:00,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:38:00,842 INFO L93 Difference]: Finished difference Result 6620 states and 22145 transitions. [2021-05-21 23:38:00,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:38:00,842 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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 [2021-05-21 23:38:00,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:38:00,880 INFO L225 Difference]: With dead ends: 6620 [2021-05-21 23:38:00,881 INFO L226 Difference]: Without dead ends: 5640 [2021-05-21 23:38:00,882 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 180.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:38:00,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5640 states. [2021-05-21 23:38:01,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5640 to 5320. [2021-05-21 23:38:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5320 states, 5319 states have (on average 3.342733596540703) internal successors, (17780), 5319 states have internal predecessors, (17780), 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) [2021-05-21 23:38:01,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5320 states to 5320 states and 17780 transitions. [2021-05-21 23:38:01,087 INFO L78 Accepts]: Start accepts. Automaton has 5320 states and 17780 transitions. Word has length 51 [2021-05-21 23:38:01,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:38:01,088 INFO L482 AbstractCegarLoop]: Abstraction has 5320 states and 17780 transitions. [2021-05-21 23:38:01,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2021-05-21 23:38:01,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5320 states and 17780 transitions. [2021-05-21 23:38:01,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-05-21 23:38:01,101 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:38:01,101 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:38:01,101 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 23:38:01,101 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:38:01,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:38:01,108 INFO L82 PathProgramCache]: Analyzing trace with hash -448599139, now seen corresponding path program 1 times [2021-05-21 23:38:01,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:38:01,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457858054] [2021-05-21 23:38:01,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:38:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:38:01,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:38:01,259 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:38:01,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457858054] [2021-05-21 23:38:01,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457858054] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:38:01,259 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:38:01,259 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:38:01,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654282926] [2021-05-21 23:38:01,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:38:01,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:38:01,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:38:01,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:38:01,261 INFO L87 Difference]: Start difference. First operand 5320 states and 17780 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) [2021-05-21 23:38:01,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:38:01,459 INFO L93 Difference]: Finished difference Result 5768 states and 19144 transitions. [2021-05-21 23:38:01,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:38:01,460 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 [2021-05-21 23:38:01,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:38:01,505 INFO L225 Difference]: With dead ends: 5768 [2021-05-21 23:38:01,505 INFO L226 Difference]: Without dead ends: 4984 [2021-05-21 23:38:01,506 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 159.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:38:01,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4984 states. [2021-05-21 23:38:01,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4984 to 4616. [2021-05-21 23:38:01,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4616 states, 4615 states have (on average 3.342145178764897) internal successors, (15424), 4615 states have internal predecessors, (15424), 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) [2021-05-21 23:38:01,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4616 states to 4616 states and 15424 transitions. [2021-05-21 23:38:01,663 INFO L78 Accepts]: Start accepts. Automaton has 4616 states and 15424 transitions. Word has length 52 [2021-05-21 23:38:01,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:38:01,665 INFO L482 AbstractCegarLoop]: Abstraction has 4616 states and 15424 transitions. [2021-05-21 23:38:01,665 INFO L483 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) [2021-05-21 23:38:01,665 INFO L276 IsEmpty]: Start isEmpty. Operand 4616 states and 15424 transitions. [2021-05-21 23:38:01,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-21 23:38:01,677 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:38:01,677 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:38:01,677 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 23:38:01,677 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:38:01,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:38:01,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1505957406, now seen corresponding path program 1 times [2021-05-21 23:38:01,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:38:01,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009104899] [2021-05-21 23:38:01,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:38:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:38:01,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:38:01,868 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:38:01,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009104899] [2021-05-21 23:38:01,868 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009104899] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:38:01,868 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:38:01,869 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:38:01,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41335097] [2021-05-21 23:38:01,869 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:38:01,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:38:01,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:38:01,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:38:01,870 INFO L87 Difference]: Start difference. First operand 4616 states and 15424 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) [2021-05-21 23:38:02,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:38:02,145 INFO L93 Difference]: Finished difference Result 7298 states and 24180 transitions. [2021-05-21 23:38:02,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 23:38:02,145 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 [2021-05-21 23:38:02,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:38:02,161 INFO L225 Difference]: With dead ends: 7298 [2021-05-21 23:38:02,161 INFO L226 Difference]: Without dead ends: 4350 [2021-05-21 23:38:02,165 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 271.2ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-05-21 23:38:02,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4350 states. [2021-05-21 23:38:02,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4350 to 4126. [2021-05-21 23:38:02,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4126 states, 4125 states have (on average 3.2996363636363637) internal successors, (13611), 4125 states have internal predecessors, (13611), 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) [2021-05-21 23:38:02,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4126 states to 4126 states and 13611 transitions. [2021-05-21 23:38:02,347 INFO L78 Accepts]: Start accepts. Automaton has 4126 states and 13611 transitions. Word has length 53 [2021-05-21 23:38:02,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:38:02,350 INFO L482 AbstractCegarLoop]: Abstraction has 4126 states and 13611 transitions. [2021-05-21 23:38:02,350 INFO L483 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) [2021-05-21 23:38:02,350 INFO L276 IsEmpty]: Start isEmpty. Operand 4126 states and 13611 transitions. [2021-05-21 23:38:02,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-21 23:38:02,360 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:38:02,361 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:38:02,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 23:38:02,364 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:38:02,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:38:02,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1566342532, now seen corresponding path program 1 times [2021-05-21 23:38:02,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:38:02,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329770251] [2021-05-21 23:38:02,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:38:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:38:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:38:02,484 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:38:02,484 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329770251] [2021-05-21 23:38:02,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329770251] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:38:02,484 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:38:02,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:38:02,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574213419] [2021-05-21 23:38:02,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:38:02,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:38:02,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:38:02,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:38:02,487 INFO L87 Difference]: Start difference. First operand 4126 states and 13611 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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) [2021-05-21 23:38:02,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:38:02,632 INFO L93 Difference]: Finished difference Result 5189 states and 16882 transitions. [2021-05-21 23:38:02,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:38:02,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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 [2021-05-21 23:38:02,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:38:02,645 INFO L225 Difference]: With dead ends: 5189 [2021-05-21 23:38:02,645 INFO L226 Difference]: Without dead ends: 3753 [2021-05-21 23:38:02,645 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 101.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:38:02,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2021-05-21 23:38:02,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3753. [2021-05-21 23:38:02,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3753 states, 3752 states have (on average 3.236673773987207) internal successors, (12144), 3752 states have internal predecessors, (12144), 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) [2021-05-21 23:38:02,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 12144 transitions. [2021-05-21 23:38:02,752 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 12144 transitions. Word has length 54 [2021-05-21 23:38:02,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:38:02,752 INFO L482 AbstractCegarLoop]: Abstraction has 3753 states and 12144 transitions. [2021-05-21 23:38:02,752 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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) [2021-05-21 23:38:02,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 12144 transitions. [2021-05-21 23:38:02,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-21 23:38:02,761 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:38:02,761 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:38:02,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 23:38:02,761 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:38:02,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:38:02,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1073595617, now seen corresponding path program 1 times [2021-05-21 23:38:02,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:38:02,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779497430] [2021-05-21 23:38:02,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:38:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:38:02,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:38:02,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:38:02,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779497430] [2021-05-21 23:38:02,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779497430] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:38:02,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:38:02,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:38:02,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20469205] [2021-05-21 23:38:02,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:38:02,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:38:02,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:38:02,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:38:02,875 INFO L87 Difference]: Start difference. First operand 3753 states and 12144 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:38:03,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:38:03,087 INFO L93 Difference]: Finished difference Result 3927 states and 12383 transitions. [2021-05-21 23:38:03,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:38:03,087 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-05-21 23:38:03,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:38:03,097 INFO L225 Difference]: With dead ends: 3927 [2021-05-21 23:38:03,097 INFO L226 Difference]: Without dead ends: 2751 [2021-05-21 23:38:03,098 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 127.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-05-21 23:38:03,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states. [2021-05-21 23:38:03,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 2751. [2021-05-21 23:38:03,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2751 states, 2750 states have (on average 3.096363636363636) internal successors, (8515), 2750 states have internal predecessors, (8515), 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) [2021-05-21 23:38:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2751 states to 2751 states and 8515 transitions. [2021-05-21 23:38:03,178 INFO L78 Accepts]: Start accepts. Automaton has 2751 states and 8515 transitions. Word has length 55 [2021-05-21 23:38:03,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:38:03,179 INFO L482 AbstractCegarLoop]: Abstraction has 2751 states and 8515 transitions. [2021-05-21 23:38:03,180 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:38:03,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2751 states and 8515 transitions. [2021-05-21 23:38:03,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-21 23:38:03,187 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:38:03,187 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:38:03,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 23:38:03,187 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:38:03,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:38:03,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1221177026, now seen corresponding path program 1 times [2021-05-21 23:38:03,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:38:03,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950703768] [2021-05-21 23:38:03,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:38:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:38:03,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:38:03,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:38:03,317 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950703768] [2021-05-21 23:38:03,317 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950703768] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:38:03,317 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:38:03,317 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 23:38:03,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123300103] [2021-05-21 23:38:03,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 23:38:03,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:38:03,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 23:38:03,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-21 23:38:03,319 INFO L87 Difference]: Start difference. First operand 2751 states and 8515 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:38:03,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:38:03,489 INFO L93 Difference]: Finished difference Result 2364 states and 7171 transitions. [2021-05-21 23:38:03,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 23:38:03,490 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-05-21 23:38:03,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:38:03,494 INFO L225 Difference]: With dead ends: 2364 [2021-05-21 23:38:03,495 INFO L226 Difference]: Without dead ends: 1644 [2021-05-21 23:38:03,495 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 140.1ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:38:03,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2021-05-21 23:38:03,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1596. [2021-05-21 23:38:03,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 1595 states have (on average 2.9579937304075234) internal successors, (4718), 1595 states have internal predecessors, (4718), 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) [2021-05-21 23:38:03,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 4718 transitions. [2021-05-21 23:38:03,536 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 4718 transitions. Word has length 57 [2021-05-21 23:38:03,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:38:03,537 INFO L482 AbstractCegarLoop]: Abstraction has 1596 states and 4718 transitions. [2021-05-21 23:38:03,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:38:03,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 4718 transitions. [2021-05-21 23:38:03,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-05-21 23:38:03,541 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:38:03,541 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:38:03,542 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 23:38:03,542 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:38:03,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:38:03,542 INFO L82 PathProgramCache]: Analyzing trace with hash 491831026, now seen corresponding path program 1 times [2021-05-21 23:38:03,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:38:03,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727612483] [2021-05-21 23:38:03,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:38:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:38:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:38:03,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:38:03,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727612483] [2021-05-21 23:38:03,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727612483] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:38:03,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:38:03,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:38:03,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138956776] [2021-05-21 23:38:03,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:38:03,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:38:03,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:38:03,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:38:03,656 INFO L87 Difference]: Start difference. First operand 1596 states and 4718 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:38:03,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:38:03,810 INFO L93 Difference]: Finished difference Result 2287 states and 6743 transitions. [2021-05-21 23:38:03,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-21 23:38:03,810 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-05-21 23:38:03,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:38:03,814 INFO L225 Difference]: With dead ends: 2287 [2021-05-21 23:38:03,814 INFO L226 Difference]: Without dead ends: 1404 [2021-05-21 23:38:03,815 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 155.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:38:03,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2021-05-21 23:38:03,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1404. [2021-05-21 23:38:03,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 2.9265858873841766) internal successors, (4106), 1403 states have internal predecessors, (4106), 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) [2021-05-21 23:38:03,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 4106 transitions. [2021-05-21 23:38:03,854 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 4106 transitions. Word has length 61 [2021-05-21 23:38:03,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:38:03,855 INFO L482 AbstractCegarLoop]: Abstraction has 1404 states and 4106 transitions. [2021-05-21 23:38:03,855 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:38:03,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 4106 transitions. [2021-05-21 23:38:03,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-05-21 23:38:03,858 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:38:03,858 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:38:03,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 23:38:03,858 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:38:03,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:38:03,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1035960030, now seen corresponding path program 2 times [2021-05-21 23:38:03,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:38:03,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321419879] [2021-05-21 23:38:03,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:38:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:38:03,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:38:03,962 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:38:03,962 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321419879] [2021-05-21 23:38:03,962 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321419879] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:38:03,962 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:38:03,962 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 23:38:03,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235659500] [2021-05-21 23:38:03,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 23:38:03,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:38:03,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 23:38:03,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-05-21 23:38:03,963 INFO L87 Difference]: Start difference. First operand 1404 states and 4106 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:38:04,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:38:04,057 INFO L93 Difference]: Finished difference Result 2327 states and 6857 transitions. [2021-05-21 23:38:04,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:38:04,058 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-05-21 23:38:04,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:38:04,061 INFO L225 Difference]: With dead ends: 2327 [2021-05-21 23:38:04,062 INFO L226 Difference]: Without dead ends: 1440 [2021-05-21 23:38:04,062 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 94.0ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-05-21 23:38:04,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2021-05-21 23:38:04,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1320. [2021-05-21 23:38:04,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 2.9037149355572405) internal successors, (3830), 1319 states have internal predecessors, (3830), 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) [2021-05-21 23:38:04,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 3830 transitions. [2021-05-21 23:38:04,091 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 3830 transitions. Word has length 61 [2021-05-21 23:38:04,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:38:04,092 INFO L482 AbstractCegarLoop]: Abstraction has 1320 states and 3830 transitions. [2021-05-21 23:38:04,092 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:38:04,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 3830 transitions. [2021-05-21 23:38:04,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-05-21 23:38:04,095 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:38:04,095 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:38:04,095 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-21 23:38:04,095 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:38:04,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:38:04,096 INFO L82 PathProgramCache]: Analyzing trace with hash 78142742, now seen corresponding path program 3 times [2021-05-21 23:38:04,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:38:04,098 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621345083] [2021-05-21 23:38:04,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:38:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:38:04,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:38:04,204 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:38:04,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621345083] [2021-05-21 23:38:04,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621345083] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:38:04,205 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:38:04,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:38:04,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137504594] [2021-05-21 23:38:04,206 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:38:04,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:38:04,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:38:04,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:38:04,207 INFO L87 Difference]: Start difference. First operand 1320 states and 3830 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:38:04,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:38:04,281 INFO L93 Difference]: Finished difference Result 1803 states and 5271 transitions. [2021-05-21 23:38:04,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-21 23:38:04,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-05-21 23:38:04,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:38:04,284 INFO L225 Difference]: With dead ends: 1803 [2021-05-21 23:38:04,284 INFO L226 Difference]: Without dead ends: 1050 [2021-05-21 23:38:04,285 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 81.3ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:38:04,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2021-05-21 23:38:04,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1050. [2021-05-21 23:38:04,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1049 states have (on average 2.8045757864632983) internal successors, (2942), 1049 states have internal predecessors, (2942), 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) [2021-05-21 23:38:04,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 2942 transitions. [2021-05-21 23:38:04,304 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 2942 transitions. Word has length 61 [2021-05-21 23:38:04,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:38:04,304 INFO L482 AbstractCegarLoop]: Abstraction has 1050 states and 2942 transitions. [2021-05-21 23:38:04,304 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:38:04,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 2942 transitions. [2021-05-21 23:38:04,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-05-21 23:38:04,310 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:38:04,310 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:38:04,311 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-21 23:38:04,311 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:38:04,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:38:04,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1489451038, now seen corresponding path program 4 times [2021-05-21 23:38:04,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:38:04,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849418708] [2021-05-21 23:38:04,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:38:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:38:04,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:38:04,395 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:38:04,395 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849418708] [2021-05-21 23:38:04,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849418708] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:38:04,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:38:04,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:38:04,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724348466] [2021-05-21 23:38:04,396 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:38:04,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:38:04,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:38:04,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:38:04,398 INFO L87 Difference]: Start difference. First operand 1050 states and 2942 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:38:04,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:38:04,462 INFO L93 Difference]: Finished difference Result 996 states and 2780 transitions. [2021-05-21 23:38:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-21 23:38:04,463 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-05-21 23:38:04,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:38:04,463 INFO L225 Difference]: With dead ends: 996 [2021-05-21 23:38:04,463 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 23:38:04,464 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 82.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:38:04,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 23:38:04,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 23:38:04,464 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) [2021-05-21 23:38:04,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 23:38:04,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-05-21 23:38:04,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:38:04,465 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 23:38:04,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:38:04,465 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 23:38:04,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:38:04,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-21 23:38:04,466 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-21 23:38:04,468 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-05-21 23:38:04,468 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:38:04,469 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:38:04,469 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:38:04,469 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:38:04,469 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:38:04,469 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:38:04,469 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:38:04,469 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 23:38:04,471 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-05-21 23:38:04,810 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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) [2021-05-21 23:38:04,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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) [2021-05-21 23:38:04,860 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:38:04,861 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-21 23:38:04,861 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 23:38:04,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 11:38:04 BasicIcfg [2021-05-21 23:38:04,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 23:38:04,864 INFO L168 Benchmark]: Toolchain (without parser) took 8022.62 ms. Allocated memory was 373.3 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 335.2 MB in the beginning and 1.2 GB in the end (delta: -897.5 MB). Peak memory consumption was 243.2 MB. Max. memory is 16.0 GB. [2021-05-21 23:38:04,864 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 373.3 MB. Free memory is still 353.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:38:04,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 526.83 ms. Allocated memory is still 373.3 MB. Free memory was 335.1 MB in the beginning and 334.1 MB in the end (delta: 987.1 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-05-21 23:38:04,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.66 ms. Allocated memory is still 373.3 MB. Free memory was 334.1 MB in the beginning and 332.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:38:04,866 INFO L168 Benchmark]: Boogie Preprocessor took 34.75 ms. Allocated memory is still 373.3 MB. Free memory was 332.0 MB in the beginning and 330.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:38:04,866 INFO L168 Benchmark]: RCFGBuilder took 560.35 ms. Allocated memory is still 373.3 MB. Free memory was 330.9 MB in the beginning and 306.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-05-21 23:38:04,867 INFO L168 Benchmark]: TraceAbstraction took 6833.70 ms. Allocated memory was 373.3 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 305.8 MB in the beginning and 1.2 GB in the end (delta: -926.9 MB). Peak memory consumption was 215.0 MB. Max. memory is 16.0 GB. [2021-05-21 23:38:04,871 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 373.3 MB. Free memory is still 353.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 526.83 ms. Allocated memory is still 373.3 MB. Free memory was 335.1 MB in the beginning and 334.1 MB in the end (delta: 987.1 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.66 ms. Allocated memory is still 373.3 MB. Free memory was 334.1 MB in the beginning and 332.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.75 ms. Allocated memory is still 373.3 MB. Free memory was 332.0 MB in the beginning and 330.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 560.35 ms. Allocated memory is still 373.3 MB. Free memory was 330.9 MB in the beginning and 306.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6833.70 ms. Allocated memory was 373.3 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 305.8 MB in the beginning and 1.2 GB in the end (delta: -926.9 MB). Peak memory consumption was 215.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6310.5ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 179.4ms, AutomataDifference: 2424.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 532.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1193 SDtfs, 1635 SDslu, 4080 SDs, 0 SdLazy, 450 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 446.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1602.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1374.0ms AutomataMinimizationTime, 11 MinimizatonAttempts, 2202 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 46.2ms SsaConstructionTime, 274.6ms SatisfiabilityAnalysisTime, 1239.6ms InterpolantComputationTime, 615 NumberOfCodeBlocks, 615 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 604 ConstructedInterpolants, 0 QuantifiedInterpolants, 2130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 392.1ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 49.9ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 341.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...