/usr/bin/java -Xmx8000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:55:01,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:55:01,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:55:01,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:55:01,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:55:01,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:55:01,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:55:01,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:55:01,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:55:01,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:55:01,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:55:01,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:55:01,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:55:01,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:55:01,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:55:01,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:55:01,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:55:01,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:55:01,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:55:01,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:55:01,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:55:01,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:55:01,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:55:01,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:55:01,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 12:55:01,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:55:01,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:55:01,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:55:01,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:55:01,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:55:01,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:55:01,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:55:01,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:55:01,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:55:01,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:55:01,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:55:01,177 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-09 12:55:01,236 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:55:01,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:55:01,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:55:01,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:55:01,242 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:55:01,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:55:01,242 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:55:01,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:55:01,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:55:01,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:55:01,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:55:01,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:55:01,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:55:01,245 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:55:01,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:55:01,245 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:55:01,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:55:01,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:55:01,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:55:01,246 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:55:01,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:55:01,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:55:01,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:55:01,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:55:01,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:55:01,248 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:55:01,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:55:01,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:55:01,248 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:55:01,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:55:01,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:55:01,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:55:01,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:55:01,777 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:55:01,778 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:55:01,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i [2020-11-09 12:55:01,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fac9cdf1/6e568ed6fbd54664bfdf8c44db469ac0/FLAG5b59b397d [2020-11-09 12:55:02,663 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:55:02,664 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i [2020-11-09 12:55:02,686 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fac9cdf1/6e568ed6fbd54664bfdf8c44db469ac0/FLAG5b59b397d [2020-11-09 12:55:02,916 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fac9cdf1/6e568ed6fbd54664bfdf8c44db469ac0 [2020-11-09 12:55:02,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:55:02,930 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:55:02,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:55:02,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:55:02,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:55:02,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:55:02" (1/1) ... [2020-11-09 12:55:02,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64ddbf8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:02, skipping insertion in model container [2020-11-09 12:55:02,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:55:02" (1/1) ... [2020-11-09 12:55:02,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:55:03,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:55:03,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:55:03,435 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:55:03,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:55:03,640 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:55:03,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:03 WrapperNode [2020-11-09 12:55:03,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:55:03,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:55:03,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:55:03,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:55:03,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:03" (1/1) ... [2020-11-09 12:55:03,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:03" (1/1) ... [2020-11-09 12:55:03,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:55:03,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:55:03,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:55:03,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:55:03,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:03" (1/1) ... [2020-11-09 12:55:03,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:03" (1/1) ... [2020-11-09 12:55:03,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:03" (1/1) ... [2020-11-09 12:55:03,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:03" (1/1) ... [2020-11-09 12:55:03,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:03" (1/1) ... [2020-11-09 12:55:03,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:03" (1/1) ... [2020-11-09 12:55:03,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:03" (1/1) ... [2020-11-09 12:55:03,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:55:03,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:55:03,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:55:03,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:55:03,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:03" (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 [2020-11-09 12:55:03,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:55:03,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:55:03,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:55:03,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:55:03,876 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:55:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:55:03,876 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:55:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:55:03,876 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:55:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:55:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:55:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:55:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:55:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:55:03,879 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 12:55:04,438 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:55:04,439 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:55:04,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:55:04 BoogieIcfgContainer [2020-11-09 12:55:04,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:55:04,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:55:04,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:55:04,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:55:04,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:55:02" (1/3) ... [2020-11-09 12:55:04,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc553de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:55:04, skipping insertion in model container [2020-11-09 12:55:04,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:03" (2/3) ... [2020-11-09 12:55:04,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc553de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:55:04, skipping insertion in model container [2020-11-09 12:55:04,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:55:04" (3/3) ... [2020-11-09 12:55:04,453 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_rmo.oepc.i [2020-11-09 12:55:04,472 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:55:04,472 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:55:04,477 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:55:04,479 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:55:04,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,529 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,529 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,531 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,531 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,532 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,532 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,535 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,536 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,536 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,536 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,537 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,537 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,538 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,538 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,545 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,551 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,551 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,551 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,552 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,559 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,559 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,559 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,560 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,563 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,563 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,563 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,563 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:04,566 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:55:04,579 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 12:55:04,607 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:55:04,607 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:55:04,607 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:55:04,608 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:55:04,608 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:55:04,608 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:55:04,608 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:55:04,608 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:55:04,621 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:55:04,624 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 12:55:04,627 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 12:55:04,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-11-09 12:55:04,674 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-11-09 12:55:04,675 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:55:04,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 12:55:04,682 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 12:55:08,344 WARN L194 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 12:55:08,481 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 12:55:08,744 WARN L194 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 12:55:08,876 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 12:55:09,051 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-11-09 12:55:09,236 WARN L194 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-11-09 12:55:09,324 INFO L131 LiptonReduction]: Checked pairs total: 2901 [2020-11-09 12:55:09,325 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-11-09 12:55:09,332 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-11-09 12:55:09,360 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 12:55:09,363 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 12:55:09,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:55:09,372 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:55:09,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:55:09,373 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:55:09,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:55:09,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1054042143, now seen corresponding path program 1 times [2020-11-09 12:55:09,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:55:09,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139334993] [2020-11-09 12:55:09,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:55:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:55:09,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:55:09,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139334993] [2020-11-09 12:55:09,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:55:09,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:55:09,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111290776] [2020-11-09 12:55:09,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:55:09,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:55:09,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:55:09,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:55:09,762 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-11-09 12:55:09,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:55:09,873 INFO L93 Difference]: Finished difference Result 281 states and 711 transitions. [2020-11-09 12:55:09,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:55:09,878 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-09 12:55:09,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:55:09,901 INFO L225 Difference]: With dead ends: 281 [2020-11-09 12:55:09,902 INFO L226 Difference]: Without dead ends: 180 [2020-11-09 12:55:09,904 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 [2020-11-09 12:55:09,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-09 12:55:09,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-11-09 12:55:09,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-11-09 12:55:10,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2020-11-09 12:55:10,006 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 8 [2020-11-09 12:55:10,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:55:10,007 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2020-11-09 12:55:10,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:55:10,008 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2020-11-09 12:55:10,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:55:10,011 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:55:10,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:55:10,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:55:10,012 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:55:10,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:55:10,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1550829140, now seen corresponding path program 1 times [2020-11-09 12:55:10,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:55:10,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258688504] [2020-11-09 12:55:10,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:55:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:55:10,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:55:10,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258688504] [2020-11-09 12:55:10,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:55:10,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:55:10,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996506698] [2020-11-09 12:55:10,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:55:10,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:55:10,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:55:10,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:55:10,167 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand 5 states. [2020-11-09 12:55:10,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:55:10,233 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-11-09 12:55:10,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:55:10,234 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-09 12:55:10,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:55:10,235 INFO L225 Difference]: With dead ends: 163 [2020-11-09 12:55:10,236 INFO L226 Difference]: Without dead ends: 126 [2020-11-09 12:55:10,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:55:10,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-11-09 12:55:10,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-11-09 12:55:10,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-11-09 12:55:10,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-11-09 12:55:10,251 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-11-09 12:55:10,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:55:10,252 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-11-09 12:55:10,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:55:10,252 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-11-09 12:55:10,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 12:55:10,255 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:55:10,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:55:10,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:55:10,256 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:55:10,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:55:10,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1926964344, now seen corresponding path program 1 times [2020-11-09 12:55:10,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:55:10,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545474246] [2020-11-09 12:55:10,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:55:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:55:10,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:55:10,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545474246] [2020-11-09 12:55:10,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:55:10,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:55:10,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503200198] [2020-11-09 12:55:10,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:55:10,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:55:10,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:55:10,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:55:10,403 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 6 states. [2020-11-09 12:55:10,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:55:10,481 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-11-09 12:55:10,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:55:10,481 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-09 12:55:10,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:55:10,482 INFO L225 Difference]: With dead ends: 118 [2020-11-09 12:55:10,483 INFO L226 Difference]: Without dead ends: 108 [2020-11-09 12:55:10,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-11-09 12:55:10,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-09 12:55:10,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-11-09 12:55:10,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-09 12:55:10,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-11-09 12:55:10,490 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-11-09 12:55:10,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:55:10,491 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-11-09 12:55:10,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:55:10,491 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-11-09 12:55:10,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:55:10,492 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:55:10,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:55:10,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:55:10,493 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:55:10,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:55:10,493 INFO L82 PathProgramCache]: Analyzing trace with hash 337836795, now seen corresponding path program 1 times [2020-11-09 12:55:10,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:55:10,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256575494] [2020-11-09 12:55:10,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:55:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:55:10,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:55:10,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256575494] [2020-11-09 12:55:10,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:55:10,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:55:10,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197311226] [2020-11-09 12:55:10,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:55:10,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:55:10,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:55:10,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:55:10,546 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-11-09 12:55:10,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:55:10,563 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-11-09 12:55:10,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:55:10,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 12:55:10,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:55:10,564 INFO L225 Difference]: With dead ends: 133 [2020-11-09 12:55:10,564 INFO L226 Difference]: Without dead ends: 54 [2020-11-09 12:55:10,565 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 [2020-11-09 12:55:10,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-09 12:55:10,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-09 12:55:10,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-09 12:55:10,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-11-09 12:55:10,569 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-11-09 12:55:10,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:55:10,569 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-11-09 12:55:10,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:55:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-11-09 12:55:10,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:55:10,570 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:55:10,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:55:10,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:55:10,571 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:55:10,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:55:10,571 INFO L82 PathProgramCache]: Analyzing trace with hash 64468355, now seen corresponding path program 2 times [2020-11-09 12:55:10,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:55:10,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818615369] [2020-11-09 12:55:10,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:55:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:55:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:55:10,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818615369] [2020-11-09 12:55:10,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:55:10,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:55:10,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753455459] [2020-11-09 12:55:10,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:55:10,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:55:10,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:55:10,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:55:10,664 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-11-09 12:55:10,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:55:10,681 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-11-09 12:55:10,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:55:10,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 12:55:10,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:55:10,682 INFO L225 Difference]: With dead ends: 67 [2020-11-09 12:55:10,682 INFO L226 Difference]: Without dead ends: 30 [2020-11-09 12:55:10,682 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 [2020-11-09 12:55:10,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-09 12:55:10,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-09 12:55:10,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-09 12:55:10,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-09 12:55:10,685 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-11-09 12:55:10,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:55:10,685 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-09 12:55:10,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:55:10,686 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-09 12:55:10,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:55:10,686 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:55:10,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:55:10,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:55:10,687 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:55:10,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:55:10,687 INFO L82 PathProgramCache]: Analyzing trace with hash -339277395, now seen corresponding path program 3 times [2020-11-09 12:55:10,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:55:10,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541278634] [2020-11-09 12:55:10,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:55:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:55:10,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:55:10,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541278634] [2020-11-09 12:55:10,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:55:10,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:55:10,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817665178] [2020-11-09 12:55:10,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:55:10,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:55:10,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:55:10,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:55:10,734 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-11-09 12:55:10,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:55:10,747 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-11-09 12:55:10,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:55:10,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 12:55:10,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:55:10,748 INFO L225 Difference]: With dead ends: 29 [2020-11-09 12:55:10,748 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:55:10,749 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 [2020-11-09 12:55:10,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:55:10,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:55:10,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:55:10,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:55:10,750 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 12:55:10,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:55:10,750 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:55:10,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:55:10,750 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:55:10,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:55:10,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:55:10,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:55:10 BasicIcfg [2020-11-09 12:55:10,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:55:10,756 INFO L168 Benchmark]: Toolchain (without parser) took 7832.00 ms. Allocated memory was 151.0 MB in the beginning and 220.2 MB in the end (delta: 69.2 MB). Free memory was 124.6 MB in the beginning and 118.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 76.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:10,757 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:55:10,758 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.90 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 125.7 MB in the end (delta: -1.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:10,759 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.74 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 123.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:10,759 INFO L168 Benchmark]: Boogie Preprocessor took 55.87 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 122.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:10,760 INFO L168 Benchmark]: RCFGBuilder took 640.88 ms. Allocated memory is still 151.0 MB. Free memory was 122.0 MB in the beginning and 99.5 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:10,761 INFO L168 Benchmark]: TraceAbstraction took 6309.35 ms. Allocated memory was 151.0 MB in the beginning and 220.2 MB in the end (delta: 69.2 MB). Free memory was 98.9 MB in the beginning and 118.1 MB in the end (delta: -19.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:10,765 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 709.90 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 125.7 MB in the end (delta: -1.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 100.74 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 123.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 55.87 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 122.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 640.88 ms. Allocated memory is still 151.0 MB. Free memory was 122.0 MB in the beginning and 99.5 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6309.35 ms. Allocated memory was 151.0 MB in the beginning and 220.2 MB in the end (delta: 69.2 MB). Free memory was 98.9 MB in the beginning and 118.1 MB in the end (delta: -19.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 950 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 71 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.6s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 21 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 3 ChoiceCompositions, 75 TotalNumberOfCompositions, 2901 MoverChecksTotal - 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 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 115 SDtfs, 168 SDslu, 151 SDs, 0 SdLazy, 57 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s 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, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 2874 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...