/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/safe037_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:14:25,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:14:25,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:14:25,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:14:25,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:14:25,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:14:25,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:14:25,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:14:25,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:14:25,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:14:25,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:14:25,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:14:25,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:14:25,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:14:25,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:14:25,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:14:25,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:14:25,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:14:25,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:14:25,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:14:25,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:14:25,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:14:25,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:14:25,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:14:25,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:14:25,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:14:25,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:14:25,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:14:25,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:14:25,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:14:25,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:14:25,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:14:25,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:14:25,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:14:25,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:14:25,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:14:25,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:14:25,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:14:25,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:14:25,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:14:25,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:14:25,967 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:14:26,017 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:14:26,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:14:26,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:14:26,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:14:26,022 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:14:26,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:14:26,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:14:26,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:14:26,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:14:26,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:14:26,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:14:26,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:14:26,025 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:14:26,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:14:26,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:14:26,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:14:26,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:14:26,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:14:26,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:14:26,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:14:26,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:14:26,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:14:26,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:14:26,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:14:26,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:14:26,029 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:14:26,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:14:26,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:14:26,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:14:26,518 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:14:26,519 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:14:26,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe037_rmo.oepc.i [2020-12-22 11:14:26,609 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fd39efea/7ab51732bcf344d39f564e3022c97f1c/FLAGaed9597d1 [2020-12-22 11:14:27,483 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:14:27,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe037_rmo.oepc.i [2020-12-22 11:14:27,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fd39efea/7ab51732bcf344d39f564e3022c97f1c/FLAGaed9597d1 [2020-12-22 11:14:27,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fd39efea/7ab51732bcf344d39f564e3022c97f1c [2020-12-22 11:14:27,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:14:27,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:14:27,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:14:27,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:14:27,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:14:27,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:14:27" (1/1) ... [2020-12-22 11:14:27,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749457c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:27, skipping insertion in model container [2020-12-22 11:14:27,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:14:27" (1/1) ... [2020-12-22 11:14:27,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:14:27,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:14:27,973 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/safe037_rmo.oepc.i[950,963] [2020-12-22 11:14:28,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:14:28,198 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:14:28,219 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/safe037_rmo.oepc.i[950,963] [2020-12-22 11:14:28,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:14:28,375 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:14:28,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:28 WrapperNode [2020-12-22 11:14:28,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:14:28,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:14:28,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:14:28,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:14:28,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:28" (1/1) ... [2020-12-22 11:14:28,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:28" (1/1) ... [2020-12-22 11:14:28,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:14:28,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:14:28,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:14:28,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:14:28,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:28" (1/1) ... [2020-12-22 11:14:28,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:28" (1/1) ... [2020-12-22 11:14:28,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:28" (1/1) ... [2020-12-22 11:14:28,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:28" (1/1) ... [2020-12-22 11:14:28,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:28" (1/1) ... [2020-12-22 11:14:28,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:28" (1/1) ... [2020-12-22 11:14:28,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:28" (1/1) ... [2020-12-22 11:14:28,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:14:28,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:14:28,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:14:28,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:14:28,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:28" (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 11:14:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:14:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:14:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:14:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:14:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:14:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:14:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:14:28,577 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:14:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:14:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:14:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:14:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:14:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:14:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:14:28,586 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 11:14:29,189 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:14:29,190 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:14:29,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:14:29 BoogieIcfgContainer [2020-12-22 11:14:29,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:14:29,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:14:29,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:14:29,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:14:29,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:14:27" (1/3) ... [2020-12-22 11:14:29,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a3a439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:14:29, skipping insertion in model container [2020-12-22 11:14:29,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:28" (2/3) ... [2020-12-22 11:14:29,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a3a439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:14:29, skipping insertion in model container [2020-12-22 11:14:29,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:14:29" (3/3) ... [2020-12-22 11:14:29,209 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_rmo.oepc.i [2020-12-22 11:14:29,218 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:14:29,218 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:14:29,223 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:14:29,224 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:14:29,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,297 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,298 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,298 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,298 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,298 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,299 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,299 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,299 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,299 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,301 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,301 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,301 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,302 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,302 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,302 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,311 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,311 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,317 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,318 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,318 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,336 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,337 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,337 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,341 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,341 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:14:29,350 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:14:29,371 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:14:29,412 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:14:29,412 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:14:29,412 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:14:29,412 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:14:29,413 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:14:29,413 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:14:29,413 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:14:29,413 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:14:29,432 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:14:29,436 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-22 11:14:29,440 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-22 11:14:29,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2020-12-22 11:14:29,500 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2020-12-22 11:14:29,500 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:14:29,505 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-22 11:14:29,510 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-22 11:14:32,081 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-12-22 11:14:32,183 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-22 11:14:32,403 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-12-22 11:14:32,745 INFO L131 LiptonReduction]: Checked pairs total: 2701 [2020-12-22 11:14:32,745 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-12-22 11:14:32,753 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-12-22 11:14:32,781 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-12-22 11:14:32,784 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-12-22 11:14:32,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:14:32,791 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:32,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:32,793 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:32,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:32,799 INFO L82 PathProgramCache]: Analyzing trace with hash -747620084, now seen corresponding path program 1 times [2020-12-22 11:14:32,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:32,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382360387] [2020-12-22 11:14:32,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:33,162 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 11:14:33,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382360387] [2020-12-22 11:14:33,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:33,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:14:33,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069983238] [2020-12-22 11:14:33,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:14:33,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:33,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:14:33,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:14:33,193 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-12-22 11:14:33,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:33,298 INFO L93 Difference]: Finished difference Result 281 states and 711 transitions. [2020-12-22 11:14:33,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:14:33,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-22 11:14:33,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:33,325 INFO L225 Difference]: With dead ends: 281 [2020-12-22 11:14:33,326 INFO L226 Difference]: Without dead ends: 180 [2020-12-22 11:14:33,328 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 11:14:33,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-12-22 11:14:33,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-12-22 11:14:33,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-12-22 11:14:33,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2020-12-22 11:14:33,431 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 8 [2020-12-22 11:14:33,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:33,437 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2020-12-22 11:14:33,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:14:33,437 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2020-12-22 11:14:33,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:14:33,440 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:33,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:33,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:14:33,441 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:33,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:33,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1314201068, now seen corresponding path program 1 times [2020-12-22 11:14:33,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:33,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356268923] [2020-12-22 11:14:33,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:33,570 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 11:14:33,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356268923] [2020-12-22 11:14:33,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:33,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:14:33,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166181803] [2020-12-22 11:14:33,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:14:33,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:33,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:14:33,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:14:33,574 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand 5 states. [2020-12-22 11:14:33,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:33,629 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-12-22 11:14:33,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:14:33,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-22 11:14:33,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:33,632 INFO L225 Difference]: With dead ends: 163 [2020-12-22 11:14:33,632 INFO L226 Difference]: Without dead ends: 126 [2020-12-22 11:14:33,633 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 11:14:33,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-12-22 11:14:33,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-12-22 11:14:33,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-12-22 11:14:33,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-12-22 11:14:33,643 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-12-22 11:14:33,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:33,643 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-12-22 11:14:33,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:14:33,643 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-12-22 11:14:33,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:14:33,645 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:33,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:33,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:14:33,646 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:33,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:33,646 INFO L82 PathProgramCache]: Analyzing trace with hash 2141841880, now seen corresponding path program 1 times [2020-12-22 11:14:33,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:33,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583241318] [2020-12-22 11:14:33,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:33,751 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 11:14:33,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583241318] [2020-12-22 11:14:33,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:33,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:14:33,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392156567] [2020-12-22 11:14:33,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:14:33,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:33,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:14:33,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:14:33,754 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 6 states. [2020-12-22 11:14:33,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:33,801 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-12-22 11:14:33,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:14:33,802 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 11:14:33,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:33,804 INFO L225 Difference]: With dead ends: 118 [2020-12-22 11:14:33,804 INFO L226 Difference]: Without dead ends: 108 [2020-12-22 11:14:33,804 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 11:14:33,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-12-22 11:14:33,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-12-22 11:14:33,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-22 11:14:33,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-12-22 11:14:33,812 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-12-22 11:14:33,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:33,812 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-12-22 11:14:33,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:14:33,812 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-12-22 11:14:33,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:14:33,814 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:33,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:33,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:14:33,814 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:33,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:33,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1562623596, now seen corresponding path program 1 times [2020-12-22 11:14:33,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:33,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720709132] [2020-12-22 11:14:33,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:33,872 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 11:14:33,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720709132] [2020-12-22 11:14:33,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:33,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:14:33,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401950509] [2020-12-22 11:14:33,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:14:33,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:33,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:14:33,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:14:33,875 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-12-22 11:14:33,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:33,890 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-12-22 11:14:33,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:14:33,891 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-22 11:14:33,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:33,892 INFO L225 Difference]: With dead ends: 133 [2020-12-22 11:14:33,892 INFO L226 Difference]: Without dead ends: 54 [2020-12-22 11:14:33,893 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 11:14:33,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-12-22 11:14:33,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-12-22 11:14:33,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-12-22 11:14:33,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-12-22 11:14:33,897 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-12-22 11:14:33,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:33,897 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-12-22 11:14:33,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:14:33,898 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-12-22 11:14:33,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:14:33,898 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:33,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:33,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:14:33,899 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:33,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:33,900 INFO L82 PathProgramCache]: Analyzing trace with hash -715459562, now seen corresponding path program 2 times [2020-12-22 11:14:33,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:33,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889152563] [2020-12-22 11:14:33,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:33,949 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 11:14:33,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889152563] [2020-12-22 11:14:33,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:33,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:14:33,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15814545] [2020-12-22 11:14:33,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:14:33,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:33,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:14:33,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:14:33,951 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-12-22 11:14:33,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:33,997 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-12-22 11:14:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:14:33,998 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-22 11:14:33,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:33,999 INFO L225 Difference]: With dead ends: 67 [2020-12-22 11:14:33,999 INFO L226 Difference]: Without dead ends: 30 [2020-12-22 11:14:33,999 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 11:14:34,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-22 11:14:34,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-22 11:14:34,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-22 11:14:34,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-12-22 11:14:34,002 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-12-22 11:14:34,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:34,003 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-12-22 11:14:34,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:14:34,003 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-12-22 11:14:34,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:14:34,004 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:14:34,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:14:34,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:14:34,005 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:14:34,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:14:34,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1352885548, now seen corresponding path program 3 times [2020-12-22 11:14:34,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:14:34,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321682846] [2020-12-22 11:14:34,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:14:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:14:34,055 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 11:14:34,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321682846] [2020-12-22 11:14:34,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:14:34,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:14:34,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532915076] [2020-12-22 11:14:34,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:14:34,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:14:34,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:14:34,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:14:34,058 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-12-22 11:14:34,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:14:34,069 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-12-22 11:14:34,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:14:34,069 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-22 11:14:34,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:14:34,070 INFO L225 Difference]: With dead ends: 29 [2020-12-22 11:14:34,070 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:14:34,070 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 11:14:34,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:14:34,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:14:34,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:14:34,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:14:34,071 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-12-22 11:14:34,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:14:34,072 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:14:34,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:14:34,072 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:14:34,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:14:34,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:14:34,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:14:34 BasicIcfg [2020-12-22 11:14:34,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:14:34,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:14:34,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:14:34,077 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:14:34,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:14:29" (3/4) ... [2020-12-22 11:14:34,081 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:14:34,088 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:14:34,089 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:14:34,089 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:14:34,094 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:14:34,094 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:14:34,095 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:14:34,095 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:14:34,138 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe037_rmo.oepc.i-witness.graphml [2020-12-22 11:14:34,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:14:34,139 INFO L168 Benchmark]: Toolchain (without parser) took 6445.05 ms. Allocated memory was 151.0 MB in the beginning and 222.3 MB in the end (delta: 71.3 MB). Free memory was 125.2 MB in the beginning and 185.9 MB in the end (delta: -60.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:34,140 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:14:34,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.14 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 126.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:34,141 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.95 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 124.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:34,142 INFO L168 Benchmark]: Boogie Preprocessor took 30.64 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 123.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:34,143 INFO L168 Benchmark]: RCFGBuilder took 736.50 ms. Allocated memory is still 151.0 MB. Free memory was 122.7 MB in the beginning and 100.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:34,143 INFO L168 Benchmark]: TraceAbstraction took 4877.53 ms. Allocated memory was 151.0 MB in the beginning and 222.3 MB in the end (delta: 71.3 MB). Free memory was 100.2 MB in the beginning and 188.5 MB in the end (delta: -88.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:14:34,144 INFO L168 Benchmark]: Witness Printer took 61.25 ms. Allocated memory is still 222.3 MB. Free memory was 188.5 MB in the beginning and 185.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:14:34,148 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 677.14 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 126.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.95 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 124.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.64 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 123.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 736.50 ms. Allocated memory is still 151.0 MB. Free memory was 122.7 MB in the beginning and 100.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4877.53 ms. Allocated memory was 151.0 MB in the beginning and 222.3 MB in the end (delta: 71.3 MB). Free memory was 100.2 MB in the beginning and 188.5 MB in the end (delta: -88.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 61.25 ms. Allocated memory is still 222.3 MB. Free memory was 188.5 MB in the beginning and 185.9 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 837 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 5 SemBasedMoverChecksPositive, 31 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 61 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.3s, 84 PlacesBefore, 31 PlacesAfterwards, 76 TransitionsBefore, 21 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 2701 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, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 133 SDtfs, 126 SDslu, 200 SDs, 0 SdLazy, 94 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 2802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...