/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/safe002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:39:20,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:39:20,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:39:20,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:39:20,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:39:20,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:39:20,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:39:20,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:39:20,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:39:20,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:39:20,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:39:20,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:39:20,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:39:20,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:39:20,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:39:20,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:39:20,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:39:20,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:39:20,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:39:20,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:39:20,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:39:20,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:39:20,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:39:20,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:39:20,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 14:39:20,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:39:20,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:39:20,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:39:20,580 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 [2021-01-20 14:39:20,608 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:39:20,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:39:20,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:39:20,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:39:20,610 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:39:20,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:39:20,611 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:39:20,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:39:20,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:39:20,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:39:20,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:39:20,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:39:20,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:39:20,612 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:39:20,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:39:20,613 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:39:20,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:39:20,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:39:20,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:39:20,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:39:20,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:39:20,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:39:20,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:39:20,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:39:20,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:39:20,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:39:20,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:39:20,615 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:39:20,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:39:20,616 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:39:20,616 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:39:20,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:39:21,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:39:21,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:39:21,012 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:39:21,012 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:39:21,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2021-01-20 14:39:21,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316c683f0/d6368606561341118c70c746142a09dd/FLAGe00474c33 [2021-01-20 14:39:21,916 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:39:21,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2021-01-20 14:39:21,932 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316c683f0/d6368606561341118c70c746142a09dd/FLAGe00474c33 [2021-01-20 14:39:22,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316c683f0/d6368606561341118c70c746142a09dd [2021-01-20 14:39:22,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:39:22,149 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:39:22,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:39:22,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:39:22,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:39:22,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:39:22" (1/1) ... [2021-01-20 14:39:22,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d471a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:39:22, skipping insertion in model container [2021-01-20 14:39:22,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:39:22" (1/1) ... [2021-01-20 14:39:22,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:39:22,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:39:22,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:39:22,702 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:39:22,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:39:22,869 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:39:22,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:39:22 WrapperNode [2021-01-20 14:39:22,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:39:22,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:39:22,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:39:22,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:39:22,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:39:22" (1/1) ... [2021-01-20 14:39:22,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:39:22" (1/1) ... [2021-01-20 14:39:22,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:39:22,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:39:22,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:39:22,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:39:22,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:39:22" (1/1) ... [2021-01-20 14:39:22,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:39:22" (1/1) ... [2021-01-20 14:39:22,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:39:22" (1/1) ... [2021-01-20 14:39:22,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:39:22" (1/1) ... [2021-01-20 14:39:22,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:39:22" (1/1) ... [2021-01-20 14:39:22,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:39:22" (1/1) ... [2021-01-20 14:39:22,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:39:22" (1/1) ... [2021-01-20 14:39:22,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:39:22,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:39:22,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:39:22,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:39:22,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:39:22" (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 [2021-01-20 14:39:23,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:39:23,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:39:23,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:39:23,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:39:23,036 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:39:23,036 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:39:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:39:23,037 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:39:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:39:23,037 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:39:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:39:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:39:23,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:39:23,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:39:23,039 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 14:39:23,428 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:39:23,428 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:39:23,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:39:23 BoogieIcfgContainer [2021-01-20 14:39:23,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:39:23,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:39:23,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:39:23,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:39:23,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:39:22" (1/3) ... [2021-01-20 14:39:23,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1181973d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:39:23, skipping insertion in model container [2021-01-20 14:39:23,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:39:22" (2/3) ... [2021-01-20 14:39:23,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1181973d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:39:23, skipping insertion in model container [2021-01-20 14:39:23,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:39:23" (3/3) ... [2021-01-20 14:39:23,439 INFO L111 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt.i [2021-01-20 14:39:23,455 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:39:23,455 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:39:23,458 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:39:23,459 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:39:23,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,494 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,494 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,494 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,495 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,495 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,495 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,495 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,498 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,498 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,498 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,498 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,498 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,499 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,499 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,499 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,500 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,500 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,501 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,501 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,501 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,501 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,502 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,502 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,502 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,506 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,506 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,512 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,512 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,512 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,515 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,516 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,516 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,516 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:39:23,518 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:39:23,531 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 14:39:23,554 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:39:23,554 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:39:23,554 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:39:23,554 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:39:23,555 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:39:23,555 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:39:23,555 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:39:23,555 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:39:23,567 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2021-01-20 14:39:24,258 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2021-01-20 14:39:24,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2021-01-20 14:39:24,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 14:39:24,357 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:39:24,358 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] [2021-01-20 14:39:24,359 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:39:24,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:39:24,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2021-01-20 14:39:24,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:39:24,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361250084] [2021-01-20 14:39:24,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:39:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:39:24,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:39:24,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361250084] [2021-01-20 14:39:24,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:39:24,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:39:24,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275623683] [2021-01-20 14:39:24,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:39:24,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:39:24,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:39:24,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:39:24,917 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-20 14:39:25,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:39:25,303 INFO L93 Difference]: Finished difference Result 12200 states and 42464 transitions. [2021-01-20 14:39:25,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:39:25,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2021-01-20 14:39:25,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:39:25,366 INFO L225 Difference]: With dead ends: 12200 [2021-01-20 14:39:25,367 INFO L226 Difference]: Without dead ends: 4605 [2021-01-20 14:39:25,368 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:39:25,368 INFO L78 Accepts]: Start accepts. Automaton has 4605 states. Word has length 42 [2021-01-20 14:39:25,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:39:25,370 INFO L481 AbstractCegarLoop]: Abstraction has 4605 states. [2021-01-20 14:39:25,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-20 14:39:25,371 INFO L276 IsEmpty]: Start isEmpty. Operand 4605 states. [2021-01-20 14:39:25,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 14:39:25,472 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:39:25,473 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] [2021-01-20 14:39:25,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:39:25,474 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:39:25,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:39:25,479 INFO L82 PathProgramCache]: Analyzing trace with hash -807040891, now seen corresponding path program 1 times [2021-01-20 14:39:25,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:39:25,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682570353] [2021-01-20 14:39:25,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:39:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:39:25,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:39:25,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682570353] [2021-01-20 14:39:25,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:39:25,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:39:25,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202885537] [2021-01-20 14:39:25,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:39:25,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:39:25,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:39:25,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:39:25,760 INFO L87 Difference]: Start difference. First operand 4605 states. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-01-20 14:39:26,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:39:26,008 INFO L93 Difference]: Finished difference Result 5725 states and 19295 transitions. [2021-01-20 14:39:26,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:39:26,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 44 [2021-01-20 14:39:26,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:39:26,034 INFO L225 Difference]: With dead ends: 5725 [2021-01-20 14:39:26,034 INFO L226 Difference]: Without dead ends: 3030 [2021-01-20 14:39:26,035 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:39:26,035 INFO L78 Accepts]: Start accepts. Automaton has 3030 states. Word has length 44 [2021-01-20 14:39:26,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:39:26,036 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states. [2021-01-20 14:39:26,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-01-20 14:39:26,036 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states. [2021-01-20 14:39:26,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 14:39:26,045 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:39:26,045 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] [2021-01-20 14:39:26,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:39:26,046 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:39:26,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:39:26,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1134193934, now seen corresponding path program 1 times [2021-01-20 14:39:26,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:39:26,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101321131] [2021-01-20 14:39:26,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:39:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:39:26,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:39:26,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101321131] [2021-01-20 14:39:26,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:39:26,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:39:26,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995657432] [2021-01-20 14:39:26,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:39:26,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:39:26,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:39:26,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:39:26,167 INFO L87 Difference]: Start difference. First operand 3030 states. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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) [2021-01-20 14:39:26,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:39:26,328 INFO L93 Difference]: Finished difference Result 3366 states and 10910 transitions. [2021-01-20 14:39:26,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:39:26,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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 [2021-01-20 14:39:26,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:39:26,353 INFO L225 Difference]: With dead ends: 3366 [2021-01-20 14:39:26,353 INFO L226 Difference]: Without dead ends: 2806 [2021-01-20 14:39:26,354 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:39:26,354 INFO L78 Accepts]: Start accepts. Automaton has 2806 states. Word has length 47 [2021-01-20 14:39:26,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:39:26,355 INFO L481 AbstractCegarLoop]: Abstraction has 2806 states. [2021-01-20 14:39:26,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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) [2021-01-20 14:39:26,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states. [2021-01-20 14:39:26,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-20 14:39:26,364 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:39:26,364 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] [2021-01-20 14:39:26,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:39:26,365 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:39:26,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:39:26,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1202989078, now seen corresponding path program 1 times [2021-01-20 14:39:26,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:39:26,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842227603] [2021-01-20 14:39:26,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:39:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:39:26,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:39:26,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842227603] [2021-01-20 14:39:26,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:39:26,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:39:26,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893086805] [2021-01-20 14:39:26,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:39:26,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:39:26,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:39:26,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:39:26,470 INFO L87 Difference]: Start difference. First operand 2806 states. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-01-20 14:39:26,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:39:26,600 INFO L93 Difference]: Finished difference Result 2998 states and 9642 transitions. [2021-01-20 14:39:26,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:39:26,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2021-01-20 14:39:26,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:39:26,623 INFO L225 Difference]: With dead ends: 2998 [2021-01-20 14:39:26,624 INFO L226 Difference]: Without dead ends: 2550 [2021-01-20 14:39:26,624 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:39:26,624 INFO L78 Accepts]: Start accepts. Automaton has 2550 states. Word has length 48 [2021-01-20 14:39:26,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:39:26,625 INFO L481 AbstractCegarLoop]: Abstraction has 2550 states. [2021-01-20 14:39:26,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-01-20 14:39:26,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states. [2021-01-20 14:39:26,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-20 14:39:26,634 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:39:26,634 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] [2021-01-20 14:39:26,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:39:26,635 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:39:26,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:39:26,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1695398517, now seen corresponding path program 1 times [2021-01-20 14:39:26,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:39:26,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254200582] [2021-01-20 14:39:26,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:39:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:39:26,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:39:26,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254200582] [2021-01-20 14:39:26,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:39:26,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:39:26,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588256423] [2021-01-20 14:39:26,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:39:26,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:39:26,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:39:26,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:39:26,805 INFO L87 Difference]: Start difference. First operand 2550 states. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-01-20 14:39:26,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:39:26,927 INFO L93 Difference]: Finished difference Result 3930 states and 12677 transitions. [2021-01-20 14:39:26,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:39:26,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 50 [2021-01-20 14:39:26,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:39:26,948 INFO L225 Difference]: With dead ends: 3930 [2021-01-20 14:39:26,948 INFO L226 Difference]: Without dead ends: 2260 [2021-01-20 14:39:26,948 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:39:26,949 INFO L78 Accepts]: Start accepts. Automaton has 2260 states. Word has length 50 [2021-01-20 14:39:26,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:39:26,949 INFO L481 AbstractCegarLoop]: Abstraction has 2260 states. [2021-01-20 14:39:26,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-01-20 14:39:26,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states. [2021-01-20 14:39:26,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-20 14:39:26,957 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:39:26,958 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] [2021-01-20 14:39:26,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:39:26,958 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:39:26,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:39:26,959 INFO L82 PathProgramCache]: Analyzing trace with hash 366921643, now seen corresponding path program 2 times [2021-01-20 14:39:26,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:39:26,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909278735] [2021-01-20 14:39:26,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:39:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:39:27,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:39:27,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909278735] [2021-01-20 14:39:27,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:39:27,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:39:27,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426881218] [2021-01-20 14:39:27,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:39:27,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:39:27,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:39:27,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:39:27,100 INFO L87 Difference]: Start difference. First operand 2260 states. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-01-20 14:39:27,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:39:27,224 INFO L93 Difference]: Finished difference Result 3140 states and 10117 transitions. [2021-01-20 14:39:27,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-20 14:39:27,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 50 [2021-01-20 14:39:27,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:39:27,233 INFO L225 Difference]: With dead ends: 3140 [2021-01-20 14:39:27,233 INFO L226 Difference]: Without dead ends: 1760 [2021-01-20 14:39:27,234 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:39:27,234 INFO L78 Accepts]: Start accepts. Automaton has 1760 states. Word has length 50 [2021-01-20 14:39:27,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:39:27,235 INFO L481 AbstractCegarLoop]: Abstraction has 1760 states. [2021-01-20 14:39:27,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-01-20 14:39:27,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states. [2021-01-20 14:39:27,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-20 14:39:27,241 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:39:27,241 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] [2021-01-20 14:39:27,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 14:39:27,241 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:39:27,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:39:27,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1518373285, now seen corresponding path program 3 times [2021-01-20 14:39:27,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:39:27,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451561111] [2021-01-20 14:39:27,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:39:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:39:27,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:39:27,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451561111] [2021-01-20 14:39:27,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:39:27,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:39:27,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849565202] [2021-01-20 14:39:27,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:39:27,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:39:27,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:39:27,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:39:27,398 INFO L87 Difference]: Start difference. First operand 1760 states. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-01-20 14:39:27,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:39:27,566 INFO L93 Difference]: Finished difference Result 2226 states and 6963 transitions. [2021-01-20 14:39:27,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:39:27,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2021-01-20 14:39:27,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:39:27,573 INFO L225 Difference]: With dead ends: 2226 [2021-01-20 14:39:27,573 INFO L226 Difference]: Without dead ends: 1634 [2021-01-20 14:39:27,574 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:39:27,574 INFO L78 Accepts]: Start accepts. Automaton has 1634 states. Word has length 50 [2021-01-20 14:39:27,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:39:27,575 INFO L481 AbstractCegarLoop]: Abstraction has 1634 states. [2021-01-20 14:39:27,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-01-20 14:39:27,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states. [2021-01-20 14:39:27,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 14:39:27,580 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:39:27,580 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] [2021-01-20 14:39:27,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 14:39:27,581 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:39:27,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:39:27,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1388621878, now seen corresponding path program 1 times [2021-01-20 14:39:27,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:39:27,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64389752] [2021-01-20 14:39:27,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:39:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:39:27,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:39:27,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64389752] [2021-01-20 14:39:27,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:39:27,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:39:27,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693725948] [2021-01-20 14:39:27,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:39:27,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:39:27,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:39:27,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:39:27,752 INFO L87 Difference]: Start difference. First operand 1634 states. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2021-01-20 14:39:27,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:39:27,902 INFO L93 Difference]: Finished difference Result 1793 states and 5496 transitions. [2021-01-20 14:39:27,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:39:27,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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 [2021-01-20 14:39:27,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:39:27,907 INFO L225 Difference]: With dead ends: 1793 [2021-01-20 14:39:27,907 INFO L226 Difference]: Without dead ends: 1289 [2021-01-20 14:39:27,908 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-20 14:39:27,908 INFO L78 Accepts]: Start accepts. Automaton has 1289 states. Word has length 51 [2021-01-20 14:39:27,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:39:27,908 INFO L481 AbstractCegarLoop]: Abstraction has 1289 states. [2021-01-20 14:39:27,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2021-01-20 14:39:27,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states. [2021-01-20 14:39:27,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-20 14:39:27,912 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:39:27,913 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] [2021-01-20 14:39:27,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 14:39:27,913 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:39:27,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:39:27,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1603073441, now seen corresponding path program 1 times [2021-01-20 14:39:27,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:39:27,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138405286] [2021-01-20 14:39:27,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:39:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:39:28,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:39:28,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138405286] [2021-01-20 14:39:28,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:39:28,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 14:39:28,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163149425] [2021-01-20 14:39:28,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 14:39:28,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:39:28,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 14:39:28,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 14:39:28,041 INFO L87 Difference]: Start difference. First operand 1289 states. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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) [2021-01-20 14:39:28,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:39:28,274 INFO L93 Difference]: Finished difference Result 1055 states and 3066 transitions. [2021-01-20 14:39:28,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 14:39:28,275 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 52 [2021-01-20 14:39:28,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:39:28,278 INFO L225 Difference]: With dead ends: 1055 [2021-01-20 14:39:28,278 INFO L226 Difference]: Without dead ends: 731 [2021-01-20 14:39:28,281 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-20 14:39:28,281 INFO L78 Accepts]: Start accepts. Automaton has 731 states. Word has length 52 [2021-01-20 14:39:28,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:39:28,283 INFO L481 AbstractCegarLoop]: Abstraction has 731 states. [2021-01-20 14:39:28,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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) [2021-01-20 14:39:28,283 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states. [2021-01-20 14:39:28,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 14:39:28,285 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:39:28,285 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] [2021-01-20 14:39:28,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 14:39:28,286 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:39:28,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:39:28,286 INFO L82 PathProgramCache]: Analyzing trace with hash -986251264, now seen corresponding path program 1 times [2021-01-20 14:39:28,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:39:28,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300195741] [2021-01-20 14:39:28,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:39:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:39:28,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:39:28,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300195741] [2021-01-20 14:39:28,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:39:28,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:39:28,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538269907] [2021-01-20 14:39:28,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:39:28,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:39:28,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:39:28,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:39:28,431 INFO L87 Difference]: Start difference. First operand 731 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-01-20 14:39:28,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:39:28,497 INFO L93 Difference]: Finished difference Result 623 states and 1725 transitions. [2021-01-20 14:39:28,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:39:28,497 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-01-20 14:39:28,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:39:28,497 INFO L225 Difference]: With dead ends: 623 [2021-01-20 14:39:28,498 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:39:28,498 INFO L769 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 [2021-01-20 14:39:28,498 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 54 [2021-01-20 14:39:28,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:39:28,498 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:39:28,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-01-20 14:39:28,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:39:28,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:39:28,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 14:39:28,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:39:28 BasicIcfg [2021-01-20 14:39:28,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:39:28,505 INFO L168 Benchmark]: Toolchain (without parser) took 6355.45 ms. Allocated memory was 302.0 MB in the beginning and 633.3 MB in the end (delta: 331.4 MB). Free memory was 276.3 MB in the beginning and 499.1 MB in the end (delta: -222.8 MB). Peak memory consumption was 108.8 MB. Max. memory is 16.0 GB. [2021-01-20 14:39:28,506 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:39:28,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.65 ms. Allocated memory is still 302.0 MB. Free memory was 276.1 MB in the beginning and 245.4 MB in the end (delta: 30.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-01-20 14:39:28,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.91 ms. Allocated memory is still 302.0 MB. Free memory was 245.2 MB in the beginning and 243.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:39:28,507 INFO L168 Benchmark]: Boogie Preprocessor took 42.32 ms. Allocated memory is still 302.0 MB. Free memory was 243.2 MB in the beginning and 284.7 MB in the end (delta: -41.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. [2021-01-20 14:39:28,508 INFO L168 Benchmark]: RCFGBuilder took 469.54 ms. Allocated memory is still 302.0 MB. Free memory was 284.7 MB in the beginning and 261.7 MB in the end (delta: 23.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-20 14:39:28,509 INFO L168 Benchmark]: TraceAbstraction took 5070.23 ms. Allocated memory was 302.0 MB in the beginning and 633.3 MB in the end (delta: 331.4 MB). Free memory was 260.6 MB in the beginning and 499.1 MB in the end (delta: -238.5 MB). Peak memory consumption was 91.8 MB. Max. memory is 16.0 GB. [2021-01-20 14:39:28,512 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 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 719.65 ms. Allocated memory is still 302.0 MB. Free memory was 276.1 MB in the beginning and 245.4 MB in the end (delta: 30.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 46.91 ms. Allocated memory is still 302.0 MB. Free memory was 245.2 MB in the beginning and 243.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 42.32 ms. Allocated memory is still 302.0 MB. Free memory was 243.2 MB in the beginning and 284.7 MB in the end (delta: -41.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. * RCFGBuilder took 469.54 ms. Allocated memory is still 302.0 MB. Free memory was 284.7 MB in the beginning and 261.7 MB in the end (delta: 23.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5070.23 ms. Allocated memory was 302.0 MB in the beginning and 633.3 MB in the end (delta: 331.4 MB). Free memory was 260.6 MB in the beginning and 499.1 MB in the end (delta: -238.5 MB). Peak memory consumption was 91.8 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, HoareTripleCheckerStatistics: 941 SDtfs, 1151 SDslu, 3103 SDs, 0 SdLazy, 374 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred 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, 1.2s InterpolantComputationTime, 488 NumberOfCodeBlocks, 488 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 478 ConstructedInterpolants, 0 QuantifiedInterpolants, 60478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...