/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:48:37,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:48:37,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:48:37,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 16:48:37,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 16:48:37,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 16:48:37,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 16:48:37,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 16:48:37,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 16:48:37,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 16:48:37,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 16:48:37,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 16:48:37,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 16:48:37,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 16:48:37,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 16:48:37,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 16:48:37,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-09 16:48:37,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:48:37,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:48:37,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:48:37,381 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-07-09 16:48:37,420 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:48:37,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:48:37,421 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:48:37,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:48:37,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:48:37,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:48:37,424 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:48:37,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:48:37,424 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:48:37,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:48:37,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:48:37,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:48:37,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:48:37,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:48:37,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:48:37,426 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:48:37,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:48:37,426 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:48:37,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:48:37,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:48:37,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:48:37,427 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:48:37,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:48:37,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:48:37,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:48:37,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:48:37,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:48:37,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:48:37,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:48:37,428 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:48:37,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:48:37,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:48:37,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:48:37,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:48:37,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:48:37,779 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:48:37,780 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:48:37,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2021-07-09 16:48:37,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62dd34174/ae0c4a4160454d72a79ca7fc43129d9f/FLAG9b3d9d114 [2021-07-09 16:48:38,367 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:48:38,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2021-07-09 16:48:38,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62dd34174/ae0c4a4160454d72a79ca7fc43129d9f/FLAG9b3d9d114 [2021-07-09 16:48:38,821 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62dd34174/ae0c4a4160454d72a79ca7fc43129d9f [2021-07-09 16:48:38,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:48:38,825 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:48:38,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:48:38,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:48:38,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:48:38,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:48:38" (1/1) ... [2021-07-09 16:48:38,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6aee09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:38, skipping insertion in model container [2021-07-09 16:48:38,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:48:38" (1/1) ... [2021-07-09 16:48:38,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:48:38,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:48:39,027 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/safe007_tso.oepc.i[950,963] [2021-07-09 16:48:39,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:48:39,199 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:48:39,210 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/safe007_tso.oepc.i[950,963] [2021-07-09 16:48:39,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:48:39,273 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:48:39,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:39 WrapperNode [2021-07-09 16:48:39,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:48:39,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:48:39,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:48:39,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:48:39,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:39" (1/1) ... [2021-07-09 16:48:39,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:39" (1/1) ... [2021-07-09 16:48:39,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:48:39,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:48:39,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:48:39,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:48:39,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:39" (1/1) ... [2021-07-09 16:48:39,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:39" (1/1) ... [2021-07-09 16:48:39,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:39" (1/1) ... [2021-07-09 16:48:39,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:39" (1/1) ... [2021-07-09 16:48:39,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:39" (1/1) ... [2021-07-09 16:48:39,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:39" (1/1) ... [2021-07-09 16:48:39,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:39" (1/1) ... [2021-07-09 16:48:39,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:48:39,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:48:39,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:48:39,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:48:39,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:48:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:48:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 16:48:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:48:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:48:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 16:48:39,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 16:48:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 16:48:39,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 16:48:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-09 16:48:39,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-09 16:48:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:48:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 16:48:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:48:39,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:48:39,432 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 16:48:39,798 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:48:39,798 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 16:48:39,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:48:39 BoogieIcfgContainer [2021-07-09 16:48:39,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:48:39,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:48:39,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:48:39,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:48:39,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:48:38" (1/3) ... [2021-07-09 16:48:39,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3c5739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:48:39, skipping insertion in model container [2021-07-09 16:48:39,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:39" (2/3) ... [2021-07-09 16:48:39,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3c5739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:48:39, skipping insertion in model container [2021-07-09 16:48:39,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:48:39" (3/3) ... [2021-07-09 16:48:39,806 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.oepc.i [2021-07-09 16:48:39,811 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:48:39,812 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:48:39,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 16:48:39,812 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:48:39,835 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,836 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,836 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,836 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,836 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,837 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,837 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,838 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,838 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,838 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,838 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,838 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,838 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,839 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,840 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,840 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,840 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,840 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,840 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,840 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,841 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,843 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,843 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,844 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,844 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,848 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,848 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,848 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,848 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:39,852 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 16:48:39,872 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-09 16:48:39,888 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:48:39,888 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:48:39,889 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:48:39,889 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:48:39,889 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:48:39,889 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:48:39,889 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:48:39,889 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:48:39,899 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 85 transitions, 185 flow [2021-07-09 16:48:40,103 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5560 states, 5559 states have (on average 3.4934340708760567) internal successors, (19420), 5559 states have internal predecessors, (19420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:40,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 5560 states, 5559 states have (on average 3.4934340708760567) internal successors, (19420), 5559 states have internal predecessors, (19420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:40,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-07-09 16:48:40,159 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:40,160 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:48:40,161 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:40,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:40,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1408065288, now seen corresponding path program 1 times [2021-07-09 16:48:40,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:40,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446624040] [2021-07-09 16:48:40,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:40,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:40,595 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:40,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446624040] [2021-07-09 16:48:40,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446624040] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:40,596 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:40,596 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:48:40,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879004955] [2021-07-09 16:48:40,601 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:48:40,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:40,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:48:40,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:48:40,648 INFO L87 Difference]: Start difference. First operand has 5560 states, 5559 states have (on average 3.4934340708760567) internal successors, (19420), 5559 states have internal predecessors, (19420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:40,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:40,943 INFO L93 Difference]: Finished difference Result 6344 states and 21548 transitions. [2021-07-09 16:48:40,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:48:40,944 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-07-09 16:48:40,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:41,001 INFO L225 Difference]: With dead ends: 6344 [2021-07-09 16:48:41,001 INFO L226 Difference]: Without dead ends: 4629 [2021-07-09 16:48:41,003 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 172.8ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:48:41,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4629 states. [2021-07-09 16:48:41,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4629 to 4629. [2021-07-09 16:48:41,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4629 states, 4628 states have (on average 3.3854796888504755) internal successors, (15668), 4628 states have internal predecessors, (15668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:41,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 15668 transitions. [2021-07-09 16:48:41,295 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 15668 transitions. Word has length 50 [2021-07-09 16:48:41,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:41,296 INFO L482 AbstractCegarLoop]: Abstraction has 4629 states and 15668 transitions. [2021-07-09 16:48:41,297 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:41,297 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 15668 transitions. [2021-07-09 16:48:41,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-07-09 16:48:41,307 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:41,307 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:48:41,307 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:48:41,308 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:41,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:41,309 INFO L82 PathProgramCache]: Analyzing trace with hash -873664247, now seen corresponding path program 1 times [2021-07-09 16:48:41,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:41,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743890986] [2021-07-09 16:48:41,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:41,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:41,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:41,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743890986] [2021-07-09 16:48:41,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743890986] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:41,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:41,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:48:41,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28754637] [2021-07-09 16:48:41,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:48:41,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:41,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:48:41,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:48:41,501 INFO L87 Difference]: Start difference. First operand 4629 states and 15668 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) [2021-07-09 16:48:41,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:41,664 INFO L93 Difference]: Finished difference Result 5189 states and 17401 transitions. [2021-07-09 16:48:41,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:48:41,665 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 [2021-07-09 16:48:41,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:41,693 INFO L225 Difference]: With dead ends: 5189 [2021-07-09 16:48:41,694 INFO L226 Difference]: Without dead ends: 4209 [2021-07-09 16:48:41,695 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 135.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:48:41,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4209 states. [2021-07-09 16:48:41,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4209 to 4209. [2021-07-09 16:48:41,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4209 states, 4208 states have (on average 3.3583650190114067) internal successors, (14132), 4208 states have internal predecessors, (14132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:41,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 14132 transitions. [2021-07-09 16:48:41,869 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 14132 transitions. Word has length 52 [2021-07-09 16:48:41,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:41,870 INFO L482 AbstractCegarLoop]: Abstraction has 4209 states and 14132 transitions. [2021-07-09 16:48:41,870 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) [2021-07-09 16:48:41,871 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 14132 transitions. [2021-07-09 16:48:41,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-09 16:48:41,882 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:41,882 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:48:41,882 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:48:41,882 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:41,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:41,883 INFO L82 PathProgramCache]: Analyzing trace with hash -504396568, now seen corresponding path program 1 times [2021-07-09 16:48:41,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:41,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219583642] [2021-07-09 16:48:41,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:42,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:42,044 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:42,044 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219583642] [2021-07-09 16:48:42,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219583642] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:42,045 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:42,045 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:48:42,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126572672] [2021-07-09 16:48:42,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:48:42,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:42,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:48:42,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:48:42,049 INFO L87 Difference]: Start difference. First operand 4209 states and 14132 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:42,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:42,281 INFO L93 Difference]: Finished difference Result 5579 states and 18608 transitions. [2021-07-09 16:48:42,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:48:42,282 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-07-09 16:48:42,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:42,299 INFO L225 Difference]: With dead ends: 5579 [2021-07-09 16:48:42,299 INFO L226 Difference]: Without dead ends: 2639 [2021-07-09 16:48:42,300 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 138.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:48:42,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2021-07-09 16:48:42,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2021-07-09 16:48:42,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2638 states have (on average 3.262699014404852) internal successors, (8607), 2638 states have internal predecessors, (8607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:42,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 8607 transitions. [2021-07-09 16:48:42,383 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 8607 transitions. Word has length 54 [2021-07-09 16:48:42,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:42,415 INFO L482 AbstractCegarLoop]: Abstraction has 2639 states and 8607 transitions. [2021-07-09 16:48:42,415 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:42,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 8607 transitions. [2021-07-09 16:48:42,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-07-09 16:48:42,423 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:42,423 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:48:42,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:48:42,423 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:42,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:42,424 INFO L82 PathProgramCache]: Analyzing trace with hash 822730279, now seen corresponding path program 1 times [2021-07-09 16:48:42,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:42,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390468841] [2021-07-09 16:48:42,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:42,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:42,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:42,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390468841] [2021-07-09 16:48:42,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390468841] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:42,567 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:42,567 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:48:42,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024285267] [2021-07-09 16:48:42,571 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:48:42,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:42,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:48:42,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:48:42,573 INFO L87 Difference]: Start difference. First operand 2639 states and 8607 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:42,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:42,724 INFO L93 Difference]: Finished difference Result 3879 states and 12617 transitions. [2021-07-09 16:48:42,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:48:42,724 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-07-09 16:48:42,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:42,736 INFO L225 Difference]: With dead ends: 3879 [2021-07-09 16:48:42,736 INFO L226 Difference]: Without dead ends: 1799 [2021-07-09 16:48:42,737 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 129.7ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:48:42,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2021-07-09 16:48:42,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1799. [2021-07-09 16:48:42,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1798 states have (on average 3.131813125695217) internal successors, (5631), 1798 states have internal predecessors, (5631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:42,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 5631 transitions. [2021-07-09 16:48:42,796 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 5631 transitions. Word has length 57 [2021-07-09 16:48:42,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:42,798 INFO L482 AbstractCegarLoop]: Abstraction has 1799 states and 5631 transitions. [2021-07-09 16:48:42,798 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:42,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 5631 transitions. [2021-07-09 16:48:42,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-09 16:48:42,804 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:42,804 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:48:42,805 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:48:42,806 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:42,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:42,807 INFO L82 PathProgramCache]: Analyzing trace with hash 2083636199, now seen corresponding path program 1 times [2021-07-09 16:48:42,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:42,808 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893043915] [2021-07-09 16:48:42,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:42,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:42,891 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:42,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893043915] [2021-07-09 16:48:42,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893043915] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:42,891 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:42,892 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:48:42,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281506971] [2021-07-09 16:48:42,892 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:48:42,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:42,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:48:42,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:48:42,893 INFO L87 Difference]: Start difference. First operand 1799 states and 5631 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:43,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:43,019 INFO L93 Difference]: Finished difference Result 1639 states and 5103 transitions. [2021-07-09 16:48:43,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:48:43,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-07-09 16:48:43,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:43,021 INFO L225 Difference]: With dead ends: 1639 [2021-07-09 16:48:43,021 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 16:48:43,021 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 129.1ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:48:43,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 16:48:43,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 16:48:43,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:43,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 16:48:43,022 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-07-09 16:48:43,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:43,023 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 16:48:43,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:43,023 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 16:48:43,023 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:48:43,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:48:43,025 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 16:48:43,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 04:48:43 BasicIcfg [2021-07-09 16:48:43,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 16:48:43,029 INFO L168 Benchmark]: Toolchain (without parser) took 4202.84 ms. Allocated memory was 255.9 MB in the beginning and 556.8 MB in the end (delta: 300.9 MB). Free memory was 218.0 MB in the beginning and 450.2 MB in the end (delta: -232.2 MB). Peak memory consumption was 69.5 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:43,029 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 236.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 16:48:43,031 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.19 ms. Allocated memory is still 255.9 MB. Free memory was 217.8 MB in the beginning and 228.1 MB in the end (delta: -10.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:43,031 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.62 ms. Allocated memory is still 255.9 MB. Free memory was 228.1 MB in the beginning and 225.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:43,032 INFO L168 Benchmark]: Boogie Preprocessor took 19.08 ms. Allocated memory is still 255.9 MB. Free memory was 225.6 MB in the beginning and 223.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:43,034 INFO L168 Benchmark]: RCFGBuilder took 465.38 ms. Allocated memory is still 255.9 MB. Free memory was 223.9 MB in the beginning and 199.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:43,035 INFO L168 Benchmark]: TraceAbstraction took 3226.23 ms. Allocated memory was 255.9 MB in the beginning and 556.8 MB in the end (delta: 300.9 MB). Free memory was 199.2 MB in the beginning and 450.2 MB in the end (delta: -250.9 MB). Peak memory consumption was 51.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:48:43,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 236.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 445.19 ms. Allocated memory is still 255.9 MB. Free memory was 217.8 MB in the beginning and 228.1 MB in the end (delta: -10.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 39.62 ms. Allocated memory is still 255.9 MB. Free memory was 228.1 MB in the beginning and 225.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 19.08 ms. Allocated memory is still 255.9 MB. Free memory was 225.6 MB in the beginning and 223.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 465.38 ms. Allocated memory is still 255.9 MB. Free memory was 223.9 MB in the beginning and 199.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3226.23 ms. Allocated memory was 255.9 MB in the beginning and 556.8 MB in the end (delta: 300.9 MB). Free memory was 199.2 MB in the beginning and 450.2 MB in the end (delta: -250.9 MB). Peak memory consumption was 51.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3137.6ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 90.2ms, AutomataDifference: 1144.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 213.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 528 SDtfs, 743 SDslu, 1663 SDs, 0 SdLazy, 128 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 124.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 705.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5560occurred in iteration=0, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 599.2ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.6ms SsaConstructionTime, 167.2ms SatisfiabilityAnalysisTime, 701.6ms InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 1280 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...