/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:10:31,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:10:31,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:10:31,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:10:31,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:10:31,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:10:31,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:10:31,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:10:31,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:10:31,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:10:31,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:10:31,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:10:31,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:10:31,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:10:31,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:10:31,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:10:31,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:10:31,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:10:31,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:10:31,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:10:31,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:10:31,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:10:31,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:10:31,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:10:31,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:10:31,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:10:31,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:10:31,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:10:31,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:10:31,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:10:31,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:10:31,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:10:31,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:10:31,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:10:31,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:10:31,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:10:31,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:10:31,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:10:31,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:10:31,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:10:31,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:10:31,915 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:10:31,975 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:10:31,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:10:31,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:10:31,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:10:31,981 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:10:31,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:10:31,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:10:31,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:10:31,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:10:31,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:10:31,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:10:31,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:10:31,985 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:10:31,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:10:31,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:10:31,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:10:31,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:10:31,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:10:31,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:10:31,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:10:31,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:10:31,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:10:31,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:10:31,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:10:31,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:10:31,988 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:10:32,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:10:32,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:10:32,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:10:32,515 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:10:32,516 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:10:32,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc.i [2020-12-22 11:10:32,611 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70ddb520e/e3b1de0cbee247d6a7a1e40b0d31d1e8/FLAG4227159d9 [2020-12-22 11:10:33,345 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:10:33,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc.i [2020-12-22 11:10:33,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70ddb520e/e3b1de0cbee247d6a7a1e40b0d31d1e8/FLAG4227159d9 [2020-12-22 11:10:33,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70ddb520e/e3b1de0cbee247d6a7a1e40b0d31d1e8 [2020-12-22 11:10:33,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:10:33,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:10:33,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:10:33,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:10:33,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:10:33,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:10:33" (1/1) ... [2020-12-22 11:10:33,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@848403c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:33, skipping insertion in model container [2020-12-22 11:10:33,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:10:33" (1/1) ... [2020-12-22 11:10:33,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:10:33,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:10:33,865 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc.i[950,963] [2020-12-22 11:10:34,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:10:34,179 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:10:34,199 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc.i[950,963] [2020-12-22 11:10:34,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:10:34,395 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:10:34,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:34 WrapperNode [2020-12-22 11:10:34,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:10:34,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:10:34,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:10:34,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:10:34,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:34" (1/1) ... [2020-12-22 11:10:34,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:34" (1/1) ... [2020-12-22 11:10:34,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:10:34,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:10:34,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:10:34,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:10:34,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:34" (1/1) ... [2020-12-22 11:10:34,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:34" (1/1) ... [2020-12-22 11:10:34,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:34" (1/1) ... [2020-12-22 11:10:34,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:34" (1/1) ... [2020-12-22 11:10:34,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:34" (1/1) ... [2020-12-22 11:10:34,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:34" (1/1) ... [2020-12-22 11:10:34,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:34" (1/1) ... [2020-12-22 11:10:34,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:10:34,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:10:34,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:10:34,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:10:34,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:34" (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 [2020-12-22 11:10:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:10:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:10:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:10:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:10:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:10:34,686 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:10:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:10:34,687 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:10:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:10:34,687 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:10:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:10:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:10:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:10:34,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:10:34,689 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:10:35,160 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:10:35,161 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:10:35,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:10:35 BoogieIcfgContainer [2020-12-22 11:10:35,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:10:35,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:10:35,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:10:35,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:10:35,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:10:33" (1/3) ... [2020-12-22 11:10:35,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13986e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:10:35, skipping insertion in model container [2020-12-22 11:10:35,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:34" (2/3) ... [2020-12-22 11:10:35,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13986e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:10:35, skipping insertion in model container [2020-12-22 11:10:35,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:10:35" (3/3) ... [2020-12-22 11:10:35,173 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc.i [2020-12-22 11:10:35,181 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:10:35,181 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:10:35,187 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:10:35,189 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:10:35,235 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,235 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,235 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,236 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,236 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,236 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,236 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,236 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,237 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,237 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,238 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,238 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,238 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,239 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,239 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,239 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,239 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,239 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,240 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,240 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,240 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,240 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,241 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,242 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,242 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,242 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,242 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,243 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,243 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,243 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,243 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,244 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,244 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,244 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,247 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,247 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,247 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,247 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,253 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,254 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,257 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,258 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:35,261 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:10:35,282 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:10:35,309 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:10:35,309 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:10:35,309 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:10:35,309 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:10:35,310 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:10:35,310 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:10:35,310 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:10:35,310 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:10:35,324 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:10:35,326 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 73 transitions, 161 flow [2020-12-22 11:10:35,330 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 73 transitions, 161 flow [2020-12-22 11:10:35,332 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2020-12-22 11:10:35,408 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2020-12-22 11:10:35,409 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:10:35,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-12-22 11:10:35,431 INFO L116 LiptonReduction]: Number of co-enabled transitions 1212 [2020-12-22 11:10:39,012 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-22 11:10:39,335 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-22 11:10:39,595 INFO L131 LiptonReduction]: Checked pairs total: 2226 [2020-12-22 11:10:39,595 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-12-22 11:10:39,604 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-12-22 11:10:39,627 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-12-22 11:10:39,629 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-12-22 11:10:39,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:10:39,637 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:39,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:39,638 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:39,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:39,645 INFO L82 PathProgramCache]: Analyzing trace with hash -938351108, now seen corresponding path program 1 times [2020-12-22 11:10:39,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:39,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106743225] [2020-12-22 11:10:39,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:39,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:39,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106743225] [2020-12-22 11:10:39,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:39,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:10:39,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089534740] [2020-12-22 11:10:39,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:10:39,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:39,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:10:39,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:10:40,000 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-12-22 11:10:40,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:40,062 INFO L93 Difference]: Finished difference Result 316 states and 835 transitions. [2020-12-22 11:10:40,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:10:40,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-22 11:10:40,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:40,093 INFO L225 Difference]: With dead ends: 316 [2020-12-22 11:10:40,093 INFO L226 Difference]: Without dead ends: 205 [2020-12-22 11:10:40,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:10:40,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-12-22 11:10:40,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 187. [2020-12-22 11:10:40,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-12-22 11:10:40,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 485 transitions. [2020-12-22 11:10:40,174 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 485 transitions. Word has length 8 [2020-12-22 11:10:40,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:40,176 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 485 transitions. [2020-12-22 11:10:40,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:10:40,176 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 485 transitions. [2020-12-22 11:10:40,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:10:40,179 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:40,179 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:40,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:10:40,180 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:40,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:40,183 INFO L82 PathProgramCache]: Analyzing trace with hash 395784729, now seen corresponding path program 1 times [2020-12-22 11:10:40,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:40,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208206849] [2020-12-22 11:10:40,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:40,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:40,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208206849] [2020-12-22 11:10:40,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:40,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:40,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360517360] [2020-12-22 11:10:40,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:40,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:40,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:40,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:40,386 INFO L87 Difference]: Start difference. First operand 187 states and 485 transitions. Second operand 4 states. [2020-12-22 11:10:40,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:40,428 INFO L93 Difference]: Finished difference Result 196 states and 488 transitions. [2020-12-22 11:10:40,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:10:40,429 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:10:40,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:40,433 INFO L225 Difference]: With dead ends: 196 [2020-12-22 11:10:40,434 INFO L226 Difference]: Without dead ends: 196 [2020-12-22 11:10:40,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:40,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-12-22 11:10:40,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 178. [2020-12-22 11:10:40,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-12-22 11:10:40,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 455 transitions. [2020-12-22 11:10:40,455 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 455 transitions. Word has length 9 [2020-12-22 11:10:40,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:40,455 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 455 transitions. [2020-12-22 11:10:40,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:40,456 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 455 transitions. [2020-12-22 11:10:40,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:10:40,457 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:40,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:40,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:10:40,457 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:40,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:40,458 INFO L82 PathProgramCache]: Analyzing trace with hash 975885903, now seen corresponding path program 1 times [2020-12-22 11:10:40,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:40,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118676526] [2020-12-22 11:10:40,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:40,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:40,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118676526] [2020-12-22 11:10:40,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:40,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:40,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056539187] [2020-12-22 11:10:40,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:40,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:40,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:40,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:40,538 INFO L87 Difference]: Start difference. First operand 178 states and 455 transitions. Second operand 4 states. [2020-12-22 11:10:40,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:40,573 INFO L93 Difference]: Finished difference Result 187 states and 464 transitions. [2020-12-22 11:10:40,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:10:40,576 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:10:40,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:40,580 INFO L225 Difference]: With dead ends: 187 [2020-12-22 11:10:40,581 INFO L226 Difference]: Without dead ends: 187 [2020-12-22 11:10:40,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:40,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-12-22 11:10:40,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 169. [2020-12-22 11:10:40,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-12-22 11:10:40,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 431 transitions. [2020-12-22 11:10:40,624 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 431 transitions. Word has length 9 [2020-12-22 11:10:40,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:40,624 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 431 transitions. [2020-12-22 11:10:40,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:40,625 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 431 transitions. [2020-12-22 11:10:40,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:10:40,628 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:40,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:40,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:10:40,628 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:40,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:40,629 INFO L82 PathProgramCache]: Analyzing trace with hash -615576110, now seen corresponding path program 1 times [2020-12-22 11:10:40,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:40,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419518012] [2020-12-22 11:10:40,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:40,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:40,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419518012] [2020-12-22 11:10:40,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:40,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:40,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529743543] [2020-12-22 11:10:40,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:40,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:40,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:40,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:40,741 INFO L87 Difference]: Start difference. First operand 169 states and 431 transitions. Second operand 4 states. [2020-12-22 11:10:40,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:40,804 INFO L93 Difference]: Finished difference Result 209 states and 515 transitions. [2020-12-22 11:10:40,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:10:40,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-22 11:10:40,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:40,807 INFO L225 Difference]: With dead ends: 209 [2020-12-22 11:10:40,807 INFO L226 Difference]: Without dead ends: 197 [2020-12-22 11:10:40,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:40,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-12-22 11:10:40,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 175. [2020-12-22 11:10:40,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-12-22 11:10:40,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 446 transitions. [2020-12-22 11:10:40,820 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 446 transitions. Word has length 10 [2020-12-22 11:10:40,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:40,821 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 446 transitions. [2020-12-22 11:10:40,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:40,821 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 446 transitions. [2020-12-22 11:10:40,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:10:40,823 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:40,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:40,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:10:40,823 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:40,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:40,824 INFO L82 PathProgramCache]: Analyzing trace with hash 187690604, now seen corresponding path program 2 times [2020-12-22 11:10:40,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:40,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644749449] [2020-12-22 11:10:40,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:40,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:40,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644749449] [2020-12-22 11:10:40,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:40,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:10:40,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616975925] [2020-12-22 11:10:40,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:10:40,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:40,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:10:40,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:40,904 INFO L87 Difference]: Start difference. First operand 175 states and 446 transitions. Second operand 5 states. [2020-12-22 11:10:40,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:40,961 INFO L93 Difference]: Finished difference Result 234 states and 564 transitions. [2020-12-22 11:10:40,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:10:40,963 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:10:40,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:40,964 INFO L225 Difference]: With dead ends: 234 [2020-12-22 11:10:40,964 INFO L226 Difference]: Without dead ends: 144 [2020-12-22 11:10:40,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:10:40,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-22 11:10:40,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 132. [2020-12-22 11:10:40,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-12-22 11:10:40,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 315 transitions. [2020-12-22 11:10:40,974 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 315 transitions. Word has length 10 [2020-12-22 11:10:40,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:40,974 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 315 transitions. [2020-12-22 11:10:40,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:10:40,975 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 315 transitions. [2020-12-22 11:10:40,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:10:40,976 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:40,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:40,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:10:40,977 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:40,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:40,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1342775669, now seen corresponding path program 1 times [2020-12-22 11:10:40,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:40,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835651564] [2020-12-22 11:10:40,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:41,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:41,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835651564] [2020-12-22 11:10:41,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:41,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:41,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402737930] [2020-12-22 11:10:41,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:41,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:41,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:41,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:41,065 INFO L87 Difference]: Start difference. First operand 132 states and 315 transitions. Second operand 4 states. [2020-12-22 11:10:41,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:41,123 INFO L93 Difference]: Finished difference Result 155 states and 339 transitions. [2020-12-22 11:10:41,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:10:41,124 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-22 11:10:41,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:41,126 INFO L225 Difference]: With dead ends: 155 [2020-12-22 11:10:41,126 INFO L226 Difference]: Without dead ends: 115 [2020-12-22 11:10:41,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:41,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-22 11:10:41,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-12-22 11:10:41,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-22 11:10:41,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 251 transitions. [2020-12-22 11:10:41,138 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 251 transitions. Word has length 11 [2020-12-22 11:10:41,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:41,139 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 251 transitions. [2020-12-22 11:10:41,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:41,139 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 251 transitions. [2020-12-22 11:10:41,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:10:41,144 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:41,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:41,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:10:41,145 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:41,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:41,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1283997363, now seen corresponding path program 1 times [2020-12-22 11:10:41,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:41,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402377133] [2020-12-22 11:10:41,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:41,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:41,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402377133] [2020-12-22 11:10:41,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:41,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:10:41,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246523311] [2020-12-22 11:10:41,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:10:41,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:41,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:10:41,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:41,264 INFO L87 Difference]: Start difference. First operand 115 states and 251 transitions. Second operand 5 states. [2020-12-22 11:10:41,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:41,336 INFO L93 Difference]: Finished difference Result 116 states and 234 transitions. [2020-12-22 11:10:41,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:10:41,338 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:10:41,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:41,339 INFO L225 Difference]: With dead ends: 116 [2020-12-22 11:10:41,340 INFO L226 Difference]: Without dead ends: 89 [2020-12-22 11:10:41,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:10:41,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-22 11:10:41,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-12-22 11:10:41,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-12-22 11:10:41,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 176 transitions. [2020-12-22 11:10:41,346 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 176 transitions. Word has length 12 [2020-12-22 11:10:41,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:41,352 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 176 transitions. [2020-12-22 11:10:41,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:10:41,352 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 176 transitions. [2020-12-22 11:10:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:10:41,358 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:41,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:41,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:10:41,359 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:41,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:41,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1633997476, now seen corresponding path program 1 times [2020-12-22 11:10:41,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:41,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114282069] [2020-12-22 11:10:41,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:41,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:41,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114282069] [2020-12-22 11:10:41,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:41,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:10:41,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82883342] [2020-12-22 11:10:41,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:10:41,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:41,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:10:41,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:10:41,453 INFO L87 Difference]: Start difference. First operand 89 states and 176 transitions. Second operand 6 states. [2020-12-22 11:10:41,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:41,532 INFO L93 Difference]: Finished difference Result 85 states and 166 transitions. [2020-12-22 11:10:41,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:10:41,533 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 11:10:41,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:41,534 INFO L225 Difference]: With dead ends: 85 [2020-12-22 11:10:41,534 INFO L226 Difference]: Without dead ends: 50 [2020-12-22 11:10:41,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:10:41,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-22 11:10:41,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2020-12-22 11:10:41,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-22 11:10:41,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 83 transitions. [2020-12-22 11:10:41,537 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 83 transitions. Word has length 14 [2020-12-22 11:10:41,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:41,537 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 83 transitions. [2020-12-22 11:10:41,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:10:41,538 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 83 transitions. [2020-12-22 11:10:41,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:10:41,538 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:41,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:41,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:10:41,539 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:41,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:41,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1390745954, now seen corresponding path program 1 times [2020-12-22 11:10:41,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:41,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096100756] [2020-12-22 11:10:41,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:41,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:41,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096100756] [2020-12-22 11:10:41,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:41,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:41,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592219084] [2020-12-22 11:10:41,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:10:41,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:41,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:10:41,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:10:41,601 INFO L87 Difference]: Start difference. First operand 46 states and 83 transitions. Second operand 3 states. [2020-12-22 11:10:41,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:41,615 INFO L93 Difference]: Finished difference Result 59 states and 104 transitions. [2020-12-22 11:10:41,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:10:41,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-12-22 11:10:41,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:41,617 INFO L225 Difference]: With dead ends: 59 [2020-12-22 11:10:41,617 INFO L226 Difference]: Without dead ends: 33 [2020-12-22 11:10:41,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:10:41,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-22 11:10:41,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-22 11:10:41,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-22 11:10:41,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-12-22 11:10:41,620 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2020-12-22 11:10:41,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:41,620 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-12-22 11:10:41,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:10:41,620 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-12-22 11:10:41,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:10:41,621 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:41,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:41,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:10:41,621 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:41,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:41,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1414383408, now seen corresponding path program 2 times [2020-12-22 11:10:41,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:41,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128741379] [2020-12-22 11:10:41,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:41,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:10:41,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128741379] [2020-12-22 11:10:41,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:41,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:10:41,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447569550] [2020-12-22 11:10:41,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:41,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:41,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:41,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:41,675 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-12-22 11:10:41,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:41,700 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-12-22 11:10:41,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:10:41,701 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-22 11:10:41,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:41,701 INFO L225 Difference]: With dead ends: 32 [2020-12-22 11:10:41,702 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:10:41,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:41,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:10:41,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:10:41,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:10:41,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:10:41,703 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-12-22 11:10:41,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:41,703 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:10:41,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:41,704 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:10:41,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:10:41,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:10:41,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:10:41 BasicIcfg [2020-12-22 11:10:41,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:10:41,710 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:10:41,710 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:10:41,710 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:10:41,710 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:10:35" (3/4) ... [2020-12-22 11:10:41,714 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:10:41,722 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:10:41,722 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:10:41,722 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:10:41,727 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:10:41,728 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:10:41,728 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:10:41,728 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:10:41,776 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe020_pso.oepc.i-witness.graphml [2020-12-22 11:10:41,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:10:41,778 INFO L168 Benchmark]: Toolchain (without parser) took 8191.45 ms. Allocated memory was 155.2 MB in the beginning and 205.5 MB in the end (delta: 50.3 MB). Free memory was 129.6 MB in the beginning and 72.0 MB in the end (delta: 57.5 MB). Peak memory consumption was 108.4 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:41,778 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory is still 127.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:10:41,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 805.95 ms. Allocated memory is still 155.2 MB. Free memory was 129.4 MB in the beginning and 130.0 MB in the end (delta: -563.2 kB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:41,779 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.99 ms. Allocated memory is still 155.2 MB. Free memory was 130.0 MB in the beginning and 127.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:41,780 INFO L168 Benchmark]: Boogie Preprocessor took 60.78 ms. Allocated memory is still 155.2 MB. Free memory was 127.9 MB in the beginning and 126.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:41,785 INFO L168 Benchmark]: RCFGBuilder took 595.61 ms. Allocated memory is still 155.2 MB. Free memory was 126.3 MB in the beginning and 104.8 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:41,786 INFO L168 Benchmark]: TraceAbstraction took 6543.97 ms. Allocated memory was 155.2 MB in the beginning and 205.5 MB in the end (delta: 50.3 MB). Free memory was 104.3 MB in the beginning and 74.7 MB in the end (delta: 29.6 MB). Peak memory consumption was 81.5 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:41,786 INFO L168 Benchmark]: Witness Printer took 66.36 ms. Allocated memory is still 205.5 MB. Free memory was 74.7 MB in the beginning and 72.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:41,795 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory is still 127.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 805.95 ms. Allocated memory is still 155.2 MB. Free memory was 129.4 MB in the beginning and 130.0 MB in the end (delta: -563.2 kB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 106.99 ms. Allocated memory is still 155.2 MB. Free memory was 130.0 MB in the beginning and 127.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 60.78 ms. Allocated memory is still 155.2 MB. Free memory was 127.9 MB in the beginning and 126.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 595.61 ms. Allocated memory is still 155.2 MB. Free memory was 126.3 MB in the beginning and 104.8 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6543.97 ms. Allocated memory was 155.2 MB in the beginning and 205.5 MB in the end (delta: 50.3 MB). Free memory was 104.3 MB in the beginning and 74.7 MB in the end (delta: 29.6 MB). Peak memory consumption was 81.5 MB. Max. memory is 8.0 GB. * Witness Printer took 66.36 ms. Allocated memory is still 205.5 MB. Free memory was 74.7 MB in the beginning and 72.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 727 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 40 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.2s, 81 PlacesBefore, 30 PlacesAfterwards, 73 TransitionsBefore, 20 TransitionsAfterwards, 1212 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 2226 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 166 SDtfs, 180 SDslu, 215 SDs, 0 SdLazy, 126 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 92 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 4619 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...