/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 17:22:27,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 17:22:27,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 17:22:27,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 17:22:27,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 17:22:27,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 17:22:27,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 17:22:27,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 17:22:27,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 17:22:27,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 17:22:27,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 17:22:27,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 17:22:27,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 17:22:27,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 17:22:27,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 17:22:27,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 17:22:27,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 17:22:27,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 17:22:27,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 17:22:27,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 17:22:27,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 17:22:27,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 17:22:27,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 17:22:27,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 17:22:27,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-17 17:22:27,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-17 17:22:27,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-17 17:22:27,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-17 17:22:27,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-17 17:22:27,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-17 17:22:27,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 17:22:27,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 17:22:27,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 17:22:27,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 17:22:27,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 17:22:27,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 17:22:27,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 17:22:27,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 17:22:27,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 17:22:27,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 17:22:27,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 17:22:27,875 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-12-17 17:22:27,925 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 17:22:27,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 17:22:27,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 17:22:27,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 17:22:27,931 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 17:22:27,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 17:22:27,932 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 17:22:27,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 17:22:27,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 17:22:27,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 17:22:27,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 17:22:27,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 17:22:27,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 17:22:27,934 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 17:22:27,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 17:22:27,935 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 17:22:27,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 17:22:27,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 17:22:27,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 17:22:27,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 17:22:27,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 17:22:27,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 17:22:27,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 17:22:27,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 17:22:27,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 17:22:27,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 17:22:27,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 17:22:27,938 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 17:22:27,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 17:22:27,938 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 17:22:27,939 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 17:22:28,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 17:22:28,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 17:22:28,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 17:22:28,397 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 17:22:28,397 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 17:22:28,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i [2020-12-17 17:22:28,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/555844969/65774b741d074864a4c1701bd7c4e189/FLAG01cfed9d2 [2020-12-17 17:22:29,316 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 17:22:29,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i [2020-12-17 17:22:29,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/555844969/65774b741d074864a4c1701bd7c4e189/FLAG01cfed9d2 [2020-12-17 17:22:29,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/555844969/65774b741d074864a4c1701bd7c4e189 [2020-12-17 17:22:29,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 17:22:29,563 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 17:22:29,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 17:22:29,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 17:22:29,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 17:22:29,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:22:29" (1/1) ... [2020-12-17 17:22:29,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ee4bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:29, skipping insertion in model container [2020-12-17 17:22:29,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:22:29" (1/1) ... [2020-12-17 17:22:29,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 17:22:29,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 17:22:30,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 17:22:30,066 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 17:22:30,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 17:22:30,248 INFO L208 MainTranslator]: Completed translation [2020-12-17 17:22:30,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30 WrapperNode [2020-12-17 17:22:30,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 17:22:30,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 17:22:30,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 17:22:30,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 17:22:30,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ... [2020-12-17 17:22:30,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ... [2020-12-17 17:22:30,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 17:22:30,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 17:22:30,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 17:22:30,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 17:22:30,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ... [2020-12-17 17:22:30,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ... [2020-12-17 17:22:30,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ... [2020-12-17 17:22:30,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ... [2020-12-17 17:22:30,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ... [2020-12-17 17:22:30,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ... [2020-12-17 17:22:30,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ... [2020-12-17 17:22:30,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 17:22:30,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 17:22:30,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 17:22:30,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 17:22:30,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 17:22:30,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 17:22:30,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 17:22:30,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 17:22:30,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 17:22:30,479 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 17:22:30,479 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 17:22:30,480 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 17:22:30,480 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 17:22:30,481 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 17:22:30,481 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 17:22:30,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 17:22:30,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 17:22:30,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 17:22:30,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 17:22:30,484 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 17:22:31,086 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 17:22:31,086 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 17:22:31,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:22:31 BoogieIcfgContainer [2020-12-17 17:22:31,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 17:22:31,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 17:22:31,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 17:22:31,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 17:22:31,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 05:22:29" (1/3) ... [2020-12-17 17:22:31,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b69aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:22:31, skipping insertion in model container [2020-12-17 17:22:31,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (2/3) ... [2020-12-17 17:22:31,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b69aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:22:31, skipping insertion in model container [2020-12-17 17:22:31,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:22:31" (3/3) ... [2020-12-17 17:22:31,101 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_rmo.oepc.i [2020-12-17 17:22:31,122 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 17:22:31,123 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 17:22:31,127 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 17:22:31,128 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 17:22:31,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,182 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,182 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,183 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,190 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,191 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,192 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,192 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,193 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,193 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,194 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,194 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,200 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,205 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,205 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,206 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,206 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,213 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,214 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,214 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,218 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,218 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,219 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,219 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:31,222 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 17:22:31,238 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-17 17:22:31,278 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 17:22:31,279 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 17:22:31,279 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 17:22:31,279 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 17:22:31,279 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 17:22:31,280 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 17:22:31,280 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 17:22:31,280 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 17:22:31,297 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2020-12-17 17:22:32,445 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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) [2020-12-17 17:22:32,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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) [2020-12-17 17:22:32,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-17 17:22:32,594 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:22:32,595 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:22:32,595 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:22:32,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:22:32,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1869165386, now seen corresponding path program 1 times [2020-12-17 17:22:32,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:22:32,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317786493] [2020-12-17 17:22:32,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:22:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:22:33,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:22:33,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317786493] [2020-12-17 17:22:33,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:22:33,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 17:22:33,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726583453] [2020-12-17 17:22:33,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 17:22:33,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:22:33,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 17:22:33,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 17:22:33,158 INFO L87 Difference]: Start difference. First operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2020-12-17 17:22:33,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:22:33,576 INFO L93 Difference]: Finished difference Result 9342 states and 31814 transitions. [2020-12-17 17:22:33,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 17:22:33,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 43 [2020-12-17 17:22:33,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:22:33,643 INFO L225 Difference]: With dead ends: 9342 [2020-12-17 17:22:33,643 INFO L226 Difference]: Without dead ends: 4558 [2020-12-17 17:22:33,645 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 17:22:33,646 INFO L78 Accepts]: Start accepts. Automaton has 4558 states. Word has length 43 [2020-12-17 17:22:33,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:22:33,648 INFO L481 AbstractCegarLoop]: Abstraction has 4558 states. [2020-12-17 17:22:33,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2020-12-17 17:22:33,649 INFO L276 IsEmpty]: Start isEmpty. Operand 4558 states. [2020-12-17 17:22:33,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-17 17:22:33,666 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:22:33,666 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:22:33,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 17:22:33,667 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:22:33,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:22:33,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1028386504, now seen corresponding path program 1 times [2020-12-17 17:22:33,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:22:33,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861032457] [2020-12-17 17:22:33,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:22:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:22:33,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:22:33,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861032457] [2020-12-17 17:22:33,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:22:33,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 17:22:33,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633762846] [2020-12-17 17:22:33,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 17:22:33,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:22:33,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 17:22:33,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-17 17:22:33,968 INFO L87 Difference]: Start difference. First operand 4558 states. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2020-12-17 17:22:34,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:22:34,264 INFO L93 Difference]: Finished difference Result 3802 states and 12186 transitions. [2020-12-17 17:22:34,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 17:22:34,265 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47 [2020-12-17 17:22:34,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:22:34,291 INFO L225 Difference]: With dead ends: 3802 [2020-12-17 17:22:34,291 INFO L226 Difference]: Without dead ends: 2686 [2020-12-17 17:22:34,292 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-12-17 17:22:34,293 INFO L78 Accepts]: Start accepts. Automaton has 2686 states. Word has length 47 [2020-12-17 17:22:34,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:22:34,294 INFO L481 AbstractCegarLoop]: Abstraction has 2686 states. [2020-12-17 17:22:34,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2020-12-17 17:22:34,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states. [2020-12-17 17:22:34,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-17 17:22:34,308 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:22:34,308 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:22:34,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 17:22:34,309 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:22:34,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:22:34,310 INFO L82 PathProgramCache]: Analyzing trace with hash 708225082, now seen corresponding path program 1 times [2020-12-17 17:22:34,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:22:34,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143198864] [2020-12-17 17:22:34,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:22:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:22:34,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:22:34,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143198864] [2020-12-17 17:22:34,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:22:34,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-17 17:22:34,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475373606] [2020-12-17 17:22:34,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-17 17:22:34,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:22:34,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-17 17:22:34,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-17 17:22:34,598 INFO L87 Difference]: Start difference. First operand 2686 states. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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) [2020-12-17 17:22:34,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:22:34,871 INFO L93 Difference]: Finished difference Result 1822 states and 5502 transitions. [2020-12-17 17:22:34,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-17 17:22:34,872 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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 51 [2020-12-17 17:22:34,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:22:34,882 INFO L225 Difference]: With dead ends: 1822 [2020-12-17 17:22:34,883 INFO L226 Difference]: Without dead ends: 1282 [2020-12-17 17:22:34,883 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-12-17 17:22:34,884 INFO L78 Accepts]: Start accepts. Automaton has 1282 states. Word has length 51 [2020-12-17 17:22:34,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:22:34,884 INFO L481 AbstractCegarLoop]: Abstraction has 1282 states. [2020-12-17 17:22:34,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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) [2020-12-17 17:22:34,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states. [2020-12-17 17:22:34,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-17 17:22:34,889 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:22:34,889 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:22:34,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 17:22:34,890 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:22:34,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:22:34,891 INFO L82 PathProgramCache]: Analyzing trace with hash 139688856, now seen corresponding path program 1 times [2020-12-17 17:22:34,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:22:34,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897122188] [2020-12-17 17:22:34,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:22:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:22:35,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:22:35,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897122188] [2020-12-17 17:22:35,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:22:35,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 17:22:35,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085590066] [2020-12-17 17:22:35,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 17:22:35,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:22:35,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 17:22:35,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 17:22:35,040 INFO L87 Difference]: Start difference. First operand 1282 states. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2020-12-17 17:22:35,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:22:35,142 INFO L93 Difference]: Finished difference Result 1805 states and 5308 transitions. [2020-12-17 17:22:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-17 17:22:35,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2020-12-17 17:22:35,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:22:35,150 INFO L225 Difference]: With dead ends: 1805 [2020-12-17 17:22:35,151 INFO L226 Difference]: Without dead ends: 912 [2020-12-17 17:22:35,151 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-17 17:22:35,151 INFO L78 Accepts]: Start accepts. Automaton has 912 states. Word has length 55 [2020-12-17 17:22:35,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:22:35,152 INFO L481 AbstractCegarLoop]: Abstraction has 912 states. [2020-12-17 17:22:35,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2020-12-17 17:22:35,152 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states. [2020-12-17 17:22:35,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-17 17:22:35,156 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:22:35,156 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:22:35,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 17:22:35,156 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:22:35,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:22:35,157 INFO L82 PathProgramCache]: Analyzing trace with hash -621080086, now seen corresponding path program 2 times [2020-12-17 17:22:35,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:22:35,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789877397] [2020-12-17 17:22:35,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:22:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:22:35,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:22:35,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789877397] [2020-12-17 17:22:35,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:22:35,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 17:22:35,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962113654] [2020-12-17 17:22:35,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 17:22:35,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:22:35,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 17:22:35,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 17:22:35,279 INFO L87 Difference]: Start difference. First operand 912 states. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2020-12-17 17:22:35,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:22:35,379 INFO L93 Difference]: Finished difference Result 1315 states and 3797 transitions. [2020-12-17 17:22:35,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-17 17:22:35,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2020-12-17 17:22:35,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:22:35,385 INFO L225 Difference]: With dead ends: 1315 [2020-12-17 17:22:35,385 INFO L226 Difference]: Without dead ends: 692 [2020-12-17 17:22:35,386 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-17 17:22:35,386 INFO L78 Accepts]: Start accepts. Automaton has 692 states. Word has length 55 [2020-12-17 17:22:35,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:22:35,387 INFO L481 AbstractCegarLoop]: Abstraction has 692 states. [2020-12-17 17:22:35,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2020-12-17 17:22:35,387 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states. [2020-12-17 17:22:35,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-17 17:22:35,390 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:22:35,391 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:22:35,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 17:22:35,391 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:22:35,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:22:35,392 INFO L82 PathProgramCache]: Analyzing trace with hash 952401922, now seen corresponding path program 3 times [2020-12-17 17:22:35,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:22:35,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403773850] [2020-12-17 17:22:35,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:22:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:22:35,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:22:35,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403773850] [2020-12-17 17:22:35,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:22:35,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 17:22:35,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644666775] [2020-12-17 17:22:35,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 17:22:35,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:22:35,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 17:22:35,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 17:22:35,542 INFO L87 Difference]: Start difference. First operand 692 states. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2020-12-17 17:22:35,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:22:35,622 INFO L93 Difference]: Finished difference Result 584 states and 1626 transitions. [2020-12-17 17:22:35,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-17 17:22:35,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2020-12-17 17:22:35,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:22:35,623 INFO L225 Difference]: With dead ends: 584 [2020-12-17 17:22:35,623 INFO L226 Difference]: Without dead ends: 0 [2020-12-17 17:22:35,624 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-17 17:22:35,624 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 55 [2020-12-17 17:22:35,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:22:35,624 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2020-12-17 17:22:35,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2020-12-17 17:22:35,625 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2020-12-17 17:22:35,625 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 17:22:35,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-17 17:22:35,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 05:22:35 BasicIcfg [2020-12-17 17:22:35,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 17:22:35,633 INFO L168 Benchmark]: Toolchain (without parser) took 6068.56 ms. Allocated memory was 302.0 MB in the beginning and 635.4 MB in the end (delta: 333.4 MB). Free memory was 275.8 MB in the beginning and 539.8 MB in the end (delta: -264.1 MB). Peak memory consumption was 70.9 MB. Max. memory is 16.0 GB. [2020-12-17 17:22:35,634 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 302.0 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 17:22:35,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.39 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 275.5 MB in the end (delta: -35.4 kB). Peak memory consumption was 31.1 MB. Max. memory is 16.0 GB. [2020-12-17 17:22:35,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.33 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 273.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 17:22:35,636 INFO L168 Benchmark]: Boogie Preprocessor took 57.05 ms. Allocated memory is still 302.0 MB. Free memory was 273.4 MB in the beginning and 271.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 17:22:35,637 INFO L168 Benchmark]: RCFGBuilder took 709.60 ms. Allocated memory is still 302.0 MB. Free memory was 271.3 MB in the beginning and 248.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-12-17 17:22:35,638 INFO L168 Benchmark]: TraceAbstraction took 4537.81 ms. Allocated memory was 302.0 MB in the beginning and 635.4 MB in the end (delta: 333.4 MB). Free memory was 248.2 MB in the beginning and 539.8 MB in the end (delta: -291.6 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.0 GB. [2020-12-17 17:22:35,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 302.0 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 680.39 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 275.5 MB in the end (delta: -35.4 kB). Peak memory consumption was 31.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 68.33 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 273.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 57.05 ms. Allocated memory is still 302.0 MB. Free memory was 273.4 MB in the beginning and 271.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 709.60 ms. Allocated memory is still 302.0 MB. Free memory was 271.3 MB in the beginning and 248.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4537.81 ms. Allocated memory was 302.0 MB in the beginning and 635.4 MB in the end (delta: 333.4 MB). Free memory was 248.2 MB in the beginning and 539.8 MB in the end (delta: -291.6 MB). Peak memory consumption was 44.0 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 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 553 SDtfs, 747 SDslu, 2005 SDs, 0 SdLazy, 227 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9849occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 300 ConstructedInterpolants, 0 QuantifiedInterpolants, 38064 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...