/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:26:44,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:26:44,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:26:45,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:26:45,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:26:45,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:26:45,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:26:45,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:26:45,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:26:45,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:26:45,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:26:45,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:26:45,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:26:45,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:26:45,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:26:45,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:26:45,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:26:45,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:26:45,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:26:45,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:26:45,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:26:45,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:26:45,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:26:45,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:26:45,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:26:45,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:26:45,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:26:45,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:26:45,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:26:45,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:26:45,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:26:45,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:26:45,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:26:45,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:26:45,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:26:45,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:26:45,051 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf [2020-11-12 12:26:45,079 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:26:45,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:26:45,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:26:45,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:26:45,082 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:26:45,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:26:45,082 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:26:45,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:26:45,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:26:45,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:26:45,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:26:45,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:26:45,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:26:45,084 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:26:45,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:26:45,084 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:26:45,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:26:45,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:26:45,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:26:45,085 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:26:45,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:26:45,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:26:45,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:26:45,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:26:45,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:26:45,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:26:45,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:26:45,087 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:26:45,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:26:45,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:26:45,087 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:26:45,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:26:45,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:26:45,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:26:45,577 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:26:45,578 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:26:45,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.oepc.i [2020-11-12 12:26:45,659 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ef2172f/ee1dcee963b94a56b9e4911e0f3bb460/FLAG7df3ee60d [2020-11-12 12:26:46,465 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:26:46,466 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.oepc.i [2020-11-12 12:26:46,485 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ef2172f/ee1dcee963b94a56b9e4911e0f3bb460/FLAG7df3ee60d [2020-11-12 12:26:46,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ef2172f/ee1dcee963b94a56b9e4911e0f3bb460 [2020-11-12 12:26:46,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:26:46,685 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:26:46,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:26:46,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:26:46,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:26:46,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:26:46" (1/1) ... [2020-11-12 12:26:46,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fcf9a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:26:46, skipping insertion in model container [2020-11-12 12:26:46,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:26:46" (1/1) ... [2020-11-12 12:26:46,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:26:46,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:26:47,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:26:47,298 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:26:47,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:26:47,469 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:26:47,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:26:47 WrapperNode [2020-11-12 12:26:47,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:26:47,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:26:47,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:26:47,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:26:47,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:26:47" (1/1) ... [2020-11-12 12:26:47,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:26:47" (1/1) ... [2020-11-12 12:26:47,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:26:47,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:26:47,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:26:47,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:26:47,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:26:47" (1/1) ... [2020-11-12 12:26:47,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:26:47" (1/1) ... [2020-11-12 12:26:47,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:26:47" (1/1) ... [2020-11-12 12:26:47,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:26:47" (1/1) ... [2020-11-12 12:26:47,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:26:47" (1/1) ... [2020-11-12 12:26:47,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:26:47" (1/1) ... [2020-11-12 12:26:47,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:26:47" (1/1) ... [2020-11-12 12:26:47,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:26:47,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:26:47,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:26:47,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:26:47,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:26:47" (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 [2020-11-12 12:26:47,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:26:47,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:26:47,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:26:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:26:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:26:47,689 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:26:47,690 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:26:47,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:26:47,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:26:47,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:26:47,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:26:47,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:26:47,694 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:26:48,104 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:26:48,105 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:26:48,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:26:48 BoogieIcfgContainer [2020-11-12 12:26:48,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:26:48,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:26:48,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:26:48,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:26:48,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:26:46" (1/3) ... [2020-11-12 12:26:48,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30cc84fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:26:48, skipping insertion in model container [2020-11-12 12:26:48,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:26:47" (2/3) ... [2020-11-12 12:26:48,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30cc84fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:26:48, skipping insertion in model container [2020-11-12 12:26:48,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:26:48" (3/3) ... [2020-11-12 12:26:48,116 INFO L111 eAbstractionObserver]: Analyzing ICFG safe029_tso.oepc.i [2020-11-12 12:26:48,132 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:26:48,132 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:26:48,136 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:26:48,137 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:26:48,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,168 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,169 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,169 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,169 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,169 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,169 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,170 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,170 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,170 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,171 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,171 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,171 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,171 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,172 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,172 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,172 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,172 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,172 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,173 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,173 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,173 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,173 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,176 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,176 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,176 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,176 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,184 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,184 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:26:48,190 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:26:48,203 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-12 12:26:48,227 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:26:48,227 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:26:48,227 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:26:48,227 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:26:48,228 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:26:48,228 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:26:48,228 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:26:48,228 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:26:48,241 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 63 transitions, 136 flow [2020-11-12 12:26:48,336 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1319 states, 1317 states have (on average 2.7524677296886866) internal successors, (3625), 1318 states have internal predecessors, (3625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:48,723 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 383ms [2020-11-12 12:26:48,727 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 1319 states, 1317 states have (on average 2.7524677296886866) internal successors, (3625), 1318 states have internal predecessors, (3625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:48,735 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 4050 states, 3658 states have (on average 1.1703116457080371) internal successors, (4281), 4049 states have internal predecessors, (4281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:48,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 4050 states, 3658 states have (on average 1.1703116457080371) internal successors, (4281), 4049 states have internal predecessors, (4281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:48,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-12 12:26:48,756 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:26:48,757 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:26:48,758 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:26:48,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:26:48,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1864162051, now seen corresponding path program 1 times [2020-11-12 12:26:48,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:26:48,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539876383] [2020-11-12 12:26:48,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:26:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:26:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:26:49,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539876383] [2020-11-12 12:26:49,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:26:49,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:26:49,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244910647] [2020-11-12 12:26:49,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:26:49,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:26:49,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:26:49,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:26:49,249 INFO L87 Difference]: Start difference. First operand has 4050 states, 3658 states have (on average 1.1703116457080371) internal successors, (4281), 4049 states have internal predecessors, (4281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:49,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:26:49,450 INFO L93 Difference]: Finished difference Result 1798 states and 1944 transitions. [2020-11-12 12:26:49,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:26:49,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2020-11-12 12:26:49,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:26:49,478 INFO L225 Difference]: With dead ends: 1798 [2020-11-12 12:26:49,479 INFO L226 Difference]: Without dead ends: 774 [2020-11-12 12:26:49,480 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:26:49,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2020-11-12 12:26:49,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 774. [2020-11-12 12:26:49,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 731 states have (on average 1.2339261285909713) internal successors, (902), 773 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:49,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 902 transitions. [2020-11-12 12:26:49,584 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 902 transitions. Word has length 35 [2020-11-12 12:26:49,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:26:49,585 INFO L481 AbstractCegarLoop]: Abstraction has 774 states and 902 transitions. [2020-11-12 12:26:49,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:49,585 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 902 transitions. [2020-11-12 12:26:49,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-12 12:26:49,588 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:26:49,589 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:26:49,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:26:49,589 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:26:49,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:26:49,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1847546430, now seen corresponding path program 1 times [2020-11-12 12:26:49,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:26:49,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910135054] [2020-11-12 12:26:49,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:26:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:26:49,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:26:49,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910135054] [2020-11-12 12:26:49,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:26:49,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:26:49,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861006056] [2020-11-12 12:26:49,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:26:49,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:26:49,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:26:49,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:26:49,802 INFO L87 Difference]: Start difference. First operand 774 states and 902 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:49,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:26:49,948 INFO L93 Difference]: Finished difference Result 891 states and 1010 transitions. [2020-11-12 12:26:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:26:49,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2020-11-12 12:26:49,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:26:49,955 INFO L225 Difference]: With dead ends: 891 [2020-11-12 12:26:49,955 INFO L226 Difference]: Without dead ends: 735 [2020-11-12 12:26:49,956 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:26:49,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-11-12 12:26:49,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2020-11-12 12:26:49,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 694 states have (on average 1.217579250720461) internal successors, (845), 734 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:49,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 845 transitions. [2020-11-12 12:26:49,988 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 845 transitions. Word has length 37 [2020-11-12 12:26:49,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:26:49,989 INFO L481 AbstractCegarLoop]: Abstraction has 735 states and 845 transitions. [2020-11-12 12:26:49,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:49,989 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 845 transitions. [2020-11-12 12:26:49,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-12 12:26:49,991 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:26:49,992 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:26:49,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:26:49,992 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:26:49,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:26:49,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1291945354, now seen corresponding path program 1 times [2020-11-12 12:26:49,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:26:49,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124971922] [2020-11-12 12:26:49,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:26:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:26:50,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:26:50,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124971922] [2020-11-12 12:26:50,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:26:50,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:26:50,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870647914] [2020-11-12 12:26:50,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:26:50,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:26:50,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:26:50,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:26:50,141 INFO L87 Difference]: Start difference. First operand 735 states and 845 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:50,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:26:50,324 INFO L93 Difference]: Finished difference Result 1174 states and 1296 transitions. [2020-11-12 12:26:50,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:26:50,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2020-11-12 12:26:50,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:26:50,329 INFO L225 Difference]: With dead ends: 1174 [2020-11-12 12:26:50,329 INFO L226 Difference]: Without dead ends: 746 [2020-11-12 12:26:50,330 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:26:50,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2020-11-12 12:26:50,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 602. [2020-11-12 12:26:50,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 569 states have (on average 1.2126537785588751) internal successors, (690), 601 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:50,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 690 transitions. [2020-11-12 12:26:50,351 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 690 transitions. Word has length 38 [2020-11-12 12:26:50,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:26:50,351 INFO L481 AbstractCegarLoop]: Abstraction has 602 states and 690 transitions. [2020-11-12 12:26:50,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:50,352 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 690 transitions. [2020-11-12 12:26:50,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-12 12:26:50,354 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:26:50,354 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:26:50,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:26:50,354 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:26:50,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:26:50,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1369770414, now seen corresponding path program 1 times [2020-11-12 12:26:50,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:26:50,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409584859] [2020-11-12 12:26:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:26:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:26:50,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:26:50,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409584859] [2020-11-12 12:26:50,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:26:50,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:26:50,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827039474] [2020-11-12 12:26:50,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:26:50,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:26:50,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:26:50,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:26:50,469 INFO L87 Difference]: Start difference. First operand 602 states and 690 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:50,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:26:50,597 INFO L93 Difference]: Finished difference Result 917 states and 993 transitions. [2020-11-12 12:26:50,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:26:50,598 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2020-11-12 12:26:50,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:26:50,601 INFO L225 Difference]: With dead ends: 917 [2020-11-12 12:26:50,602 INFO L226 Difference]: Without dead ends: 502 [2020-11-12 12:26:50,602 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:26:50,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-11-12 12:26:50,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 345. [2020-11-12 12:26:50,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 320 states have (on average 1.178125) internal successors, (377), 344 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:50,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 377 transitions. [2020-11-12 12:26:50,615 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 377 transitions. Word has length 38 [2020-11-12 12:26:50,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:26:50,615 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 377 transitions. [2020-11-12 12:26:50,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:50,616 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 377 transitions. [2020-11-12 12:26:50,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-12 12:26:50,617 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:26:50,617 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:26:50,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:26:50,618 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:26:50,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:26:50,618 INFO L82 PathProgramCache]: Analyzing trace with hash 306669119, now seen corresponding path program 1 times [2020-11-12 12:26:50,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:26:50,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037310218] [2020-11-12 12:26:50,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:26:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:26:50,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:26:50,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037310218] [2020-11-12 12:26:50,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:26:50,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:26:50,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001384457] [2020-11-12 12:26:50,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:26:50,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:26:50,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:26:50,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:26:50,793 INFO L87 Difference]: Start difference. First operand 345 states and 377 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:50,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:26:50,920 INFO L93 Difference]: Finished difference Result 316 states and 324 transitions. [2020-11-12 12:26:50,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:26:50,921 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2020-11-12 12:26:50,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:26:50,923 INFO L225 Difference]: With dead ends: 316 [2020-11-12 12:26:50,923 INFO L226 Difference]: Without dead ends: 265 [2020-11-12 12:26:50,924 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:26:50,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-11-12 12:26:50,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2020-11-12 12:26:50,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 244 states have (on average 1.1188524590163935) internal successors, (273), 264 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:50,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 273 transitions. [2020-11-12 12:26:50,936 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 273 transitions. Word has length 39 [2020-11-12 12:26:50,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:26:50,943 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 273 transitions. [2020-11-12 12:26:50,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:50,943 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 273 transitions. [2020-11-12 12:26:50,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-12 12:26:50,946 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:26:50,946 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:26:50,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:26:50,947 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:26:50,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:26:50,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1264066346, now seen corresponding path program 1 times [2020-11-12 12:26:50,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:26:50,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490454576] [2020-11-12 12:26:50,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:26:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:26:51,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:26:51,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490454576] [2020-11-12 12:26:51,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:26:51,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:26:51,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499692997] [2020-11-12 12:26:51,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:26:51,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:26:51,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:26:51,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:26:51,115 INFO L87 Difference]: Start difference. First operand 265 states and 273 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:51,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:26:51,203 INFO L93 Difference]: Finished difference Result 83 states and 82 transitions. [2020-11-12 12:26:51,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:26:51,203 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2020-11-12 12:26:51,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:26:51,204 INFO L225 Difference]: With dead ends: 83 [2020-11-12 12:26:51,204 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:26:51,204 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:26:51,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:26:51,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:26:51,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:51,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:26:51,205 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2020-11-12 12:26:51,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:26:51,206 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:26:51,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:26:51,206 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:26:51,206 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:26:51,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:26:51,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:26:51 BasicIcfg [2020-11-12 12:26:51,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:26:51,214 INFO L168 Benchmark]: Toolchain (without parser) took 4533.45 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 277.4 MB in the beginning and 232.0 MB in the end (delta: 45.4 MB). Peak memory consumption was 107.6 MB. Max. memory is 16.0 GB. [2020-11-12 12:26:51,215 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 272.7 MB in the end (delta: 66.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:26:51,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.41 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 246.5 MB in the end (delta: 30.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-12 12:26:51,217 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.39 ms. Allocated memory is still 302.0 MB. Free memory was 246.5 MB in the beginning and 244.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:26:51,217 INFO L168 Benchmark]: Boogie Preprocessor took 29.27 ms. Allocated memory is still 302.0 MB. Free memory was 244.6 MB in the beginning and 243.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:26:51,218 INFO L168 Benchmark]: RCFGBuilder took 554.38 ms. Allocated memory is still 302.0 MB. Free memory was 243.3 MB in the beginning and 265.1 MB in the end (delta: -21.7 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.0 GB. [2020-11-12 12:26:51,219 INFO L168 Benchmark]: TraceAbstraction took 3103.15 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 264.0 MB in the beginning and 232.0 MB in the end (delta: 32.0 MB). Peak memory consumption was 94.9 MB. Max. memory is 16.0 GB. [2020-11-12 12:26:51,223 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 272.7 MB in the end (delta: 66.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 784.41 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 246.5 MB in the end (delta: 30.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.39 ms. Allocated memory is still 302.0 MB. Free memory was 246.5 MB in the beginning and 244.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.27 ms. Allocated memory is still 302.0 MB. Free memory was 244.6 MB in the beginning and 243.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 554.38 ms. Allocated memory is still 302.0 MB. Free memory was 243.3 MB in the beginning and 265.1 MB in the end (delta: -21.7 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3103.15 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 264.0 MB in the beginning and 232.0 MB in the end (delta: 32.0 MB). Peak memory consumption was 94.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 314 SDtfs, 284 SDslu, 1124 SDs, 0 SdLazy, 139 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4050occurred 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, 301 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 21934 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...