/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-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:57:01,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:57:01,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:57:01,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:57:01,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:57:01,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:57:01,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:57:01,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:57:01,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:57:01,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:57:01,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:57:01,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:57:01,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:57:01,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:57:01,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:57:01,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:57:01,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:57:01,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:57:01,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:57:01,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:57:01,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:57:01,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:57:01,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:57:01,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:57:01,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-17 23:57:01,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-17 23:57:01,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-17 23:57:01,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-17 23:57:01,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-17 23:57:01,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-17 23:57:01,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:57:01,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:57:01,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:57:01,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:57:01,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:57:01,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:57:01,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:57:01,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:57:01,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:57:01,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:57:01,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:57:01,735 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-keepdead.epf [2020-12-17 23:57:01,761 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:57:01,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:57:01,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:57:01,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:57:01,763 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:57:01,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:57:01,764 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:57:01,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:57:01,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:57:01,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:57:01,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:57:01,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:57:01,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:57:01,765 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:57:01,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:57:01,766 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:57:01,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:57:01,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:57:01,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:57:01,766 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:57:01,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:57:01,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:57:01,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:57:01,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:57:01,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:57:01,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:57:01,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:57:01,768 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:57:01,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:57:01,769 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:57:01,769 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:57:01,769 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:57:02,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:57:02,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:57:02,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:57:02,192 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:57:02,197 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:57:02,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i [2020-12-17 23:57:02,283 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a83ba3f7/32a72f0591ec4a78a5b555941eba8c72/FLAG96fd99a02 [2020-12-17 23:57:03,024 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:57:03,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i [2020-12-17 23:57:03,045 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a83ba3f7/32a72f0591ec4a78a5b555941eba8c72/FLAG96fd99a02 [2020-12-17 23:57:03,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a83ba3f7/32a72f0591ec4a78a5b555941eba8c72 [2020-12-17 23:57:03,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:57:03,303 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:57:03,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:57:03,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:57:03,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:57:03,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:57:03" (1/1) ... [2020-12-17 23:57:03,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15ac60d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:03, skipping insertion in model container [2020-12-17 23:57:03,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:57:03" (1/1) ... [2020-12-17 23:57:03,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:57:03,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:57:03,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:57:03,894 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:57:03,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:57:04,077 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:57:04,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:04 WrapperNode [2020-12-17 23:57:04,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:57:04,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:57:04,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:57:04,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:57:04,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:04" (1/1) ... [2020-12-17 23:57:04,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:04" (1/1) ... [2020-12-17 23:57:04,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:57:04,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:57:04,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:57:04,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:57:04,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:04" (1/1) ... [2020-12-17 23:57:04,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:04" (1/1) ... [2020-12-17 23:57:04,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:04" (1/1) ... [2020-12-17 23:57:04,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:04" (1/1) ... [2020-12-17 23:57:04,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:04" (1/1) ... [2020-12-17 23:57:04,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:04" (1/1) ... [2020-12-17 23:57:04,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:04" (1/1) ... [2020-12-17 23:57:04,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:57:04,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:57:04,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:57:04,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:57:04,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:04" (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 23:57:04,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:57:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:57:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:57:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:57:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:57:04,301 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:57:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:57:04,302 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:57:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 23:57:04,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 23:57:04,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:57:04,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:57:04,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:57:04,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:57:04,306 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 23:57:04,717 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:57:04,718 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:57:04,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:57:04 BoogieIcfgContainer [2020-12-17 23:57:04,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:57:04,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:57:04,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:57:04,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:57:04,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:57:03" (1/3) ... [2020-12-17 23:57:04,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476babcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:57:04, skipping insertion in model container [2020-12-17 23:57:04,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:04" (2/3) ... [2020-12-17 23:57:04,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476babcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:57:04, skipping insertion in model container [2020-12-17 23:57:04,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:57:04" (3/3) ... [2020-12-17 23:57:04,728 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc.i [2020-12-17 23:57:04,743 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:57:04,744 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:57:04,747 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:57:04,748 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:57:04,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,779 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,781 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,781 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,782 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,782 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,784 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,784 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,785 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,785 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,786 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,786 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,788 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,789 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,789 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,789 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,794 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,794 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,794 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,795 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,796 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,797 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,797 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,797 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:04,799 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:57:04,812 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-17 23:57:04,834 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:57:04,834 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:57:04,834 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:57:04,835 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:57:04,835 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:57:04,835 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:57:04,835 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:57:04,835 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:57:04,847 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-12-17 23:57:05,572 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) [2020-12-17 23:57:05,613 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) [2020-12-17 23:57:05,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-17 23:57:05,665 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:05,666 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] [2020-12-17 23:57:05,666 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:05,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:05,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1953454049, now seen corresponding path program 1 times [2020-12-17 23:57:05,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:05,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708926448] [2020-12-17 23:57:05,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:06,170 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 23:57:06,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708926448] [2020-12-17 23:57:06,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:06,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:57:06,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073311887] [2020-12-17 23:57:06,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:57:06,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:06,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:57:06,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:57:06,219 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) [2020-12-17 23:57:06,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:06,597 INFO L93 Difference]: Finished difference Result 12200 states and 42464 transitions. [2020-12-17 23:57:06,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:57:06,599 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 [2020-12-17 23:57:06,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:06,602 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:57:06,602 INFO L78 Accepts]: Start accepts. Automaton has 12200 states and 42464 transitions. Word has length 42 [2020-12-17 23:57:06,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:06,604 INFO L481 AbstractCegarLoop]: Abstraction has 12200 states and 42464 transitions. [2020-12-17 23:57:06,604 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) [2020-12-17 23:57:06,604 INFO L276 IsEmpty]: Start isEmpty. Operand 12200 states and 42464 transitions. [2020-12-17 23:57:06,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-17 23:57:06,622 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:06,622 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] [2020-12-17 23:57:06,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:57:06,623 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:06,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:06,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1502808140, now seen corresponding path program 1 times [2020-12-17 23:57:06,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:06,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666178206] [2020-12-17 23:57:06,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:06,777 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 23:57:06,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666178206] [2020-12-17 23:57:06,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:06,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:57:06,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275527901] [2020-12-17 23:57:06,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:57:06,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:06,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:57:06,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:57:06,784 INFO L87 Difference]: Start difference. First operand 12200 states and 42464 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 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) [2020-12-17 23:57:07,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:07,258 INFO L93 Difference]: Finished difference Result 14748 states and 51046 transitions. [2020-12-17 23:57:07,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:57:07,259 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 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 [2020-12-17 23:57:07,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:07,260 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:57:07,260 INFO L78 Accepts]: Start accepts. Automaton has 14748 states and 51046 transitions. Word has length 44 [2020-12-17 23:57:07,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:07,261 INFO L481 AbstractCegarLoop]: Abstraction has 14748 states and 51046 transitions. [2020-12-17 23:57:07,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 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) [2020-12-17 23:57:07,261 INFO L276 IsEmpty]: Start isEmpty. Operand 14748 states and 51046 transitions. [2020-12-17 23:57:07,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-17 23:57:07,295 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:07,295 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] [2020-12-17 23:57:07,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:57:07,296 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:07,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:07,300 INFO L82 PathProgramCache]: Analyzing trace with hash 2080522916, now seen corresponding path program 1 times [2020-12-17 23:57:07,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:07,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583711507] [2020-12-17 23:57:07,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:07,451 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 23:57:07,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583711507] [2020-12-17 23:57:07,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:07,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:57:07,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853106261] [2020-12-17 23:57:07,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:57:07,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:07,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:57:07,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:57:07,454 INFO L87 Difference]: Start difference. First operand 14748 states and 51046 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 23:57:07,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:07,943 INFO L93 Difference]: Finished difference Result 22364 states and 76880 transitions. [2020-12-17 23:57:07,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:57:07,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2020-12-17 23:57:07,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:07,944 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:57:07,945 INFO L78 Accepts]: Start accepts. Automaton has 22364 states and 76880 transitions. Word has length 45 [2020-12-17 23:57:07,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:07,945 INFO L481 AbstractCegarLoop]: Abstraction has 22364 states and 76880 transitions. [2020-12-17 23:57:07,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 23:57:07,946 INFO L276 IsEmpty]: Start isEmpty. Operand 22364 states and 76880 transitions. [2020-12-17 23:57:07,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-17 23:57:07,978 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:07,978 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 23:57:07,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:57:07,979 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:07,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:07,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1485652643, now seen corresponding path program 1 times [2020-12-17 23:57:07,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:07,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612643722] [2020-12-17 23:57:07,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:08,208 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 23:57:08,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612643722] [2020-12-17 23:57:08,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:08,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:57:08,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597903471] [2020-12-17 23:57:08,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:57:08,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:08,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:57:08,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:57:08,211 INFO L87 Difference]: Start difference. First operand 22364 states and 76880 transitions. 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 23:57:08,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:08,826 INFO L93 Difference]: Finished difference Result 30624 states and 104848 transitions. [2020-12-17 23:57:08,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:57:08,827 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 23:57:08,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:08,831 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:57:08,831 INFO L78 Accepts]: Start accepts. Automaton has 30624 states and 104848 transitions. Word has length 47 [2020-12-17 23:57:08,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:08,832 INFO L481 AbstractCegarLoop]: Abstraction has 30624 states and 104848 transitions. [2020-12-17 23:57:08,832 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 23:57:08,832 INFO L276 IsEmpty]: Start isEmpty. Operand 30624 states and 104848 transitions. [2020-12-17 23:57:08,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-17 23:57:08,944 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:08,945 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 23:57:08,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:57:08,948 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:08,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:08,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1266801623, now seen corresponding path program 2 times [2020-12-17 23:57:08,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:08,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795540866] [2020-12-17 23:57:08,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:09,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:57:09,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795540866] [2020-12-17 23:57:09,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:09,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:57:09,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746059216] [2020-12-17 23:57:09,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:57:09,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:09,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:57:09,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:57:09,137 INFO L87 Difference]: Start difference. First operand 30624 states and 104848 transitions. 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) [2020-12-17 23:57:09,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:09,564 INFO L93 Difference]: Finished difference Result 24078 states and 79960 transitions. [2020-12-17 23:57:09,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 23:57:09,572 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 [2020-12-17 23:57:09,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:09,573 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:57:09,573 INFO L78 Accepts]: Start accepts. Automaton has 24078 states and 79960 transitions. Word has length 47 [2020-12-17 23:57:09,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:09,574 INFO L481 AbstractCegarLoop]: Abstraction has 24078 states and 79960 transitions. [2020-12-17 23:57:09,574 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) [2020-12-17 23:57:09,574 INFO L276 IsEmpty]: Start isEmpty. Operand 24078 states and 79960 transitions. [2020-12-17 23:57:09,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-17 23:57:09,623 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:09,623 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] [2020-12-17 23:57:09,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:57:09,624 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:09,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:09,625 INFO L82 PathProgramCache]: Analyzing trace with hash -2035932160, now seen corresponding path program 1 times [2020-12-17 23:57:09,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:09,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152016820] [2020-12-17 23:57:09,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:09,794 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 23:57:09,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152016820] [2020-12-17 23:57:09,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:09,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:57:09,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582499372] [2020-12-17 23:57:09,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:57:09,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:09,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:57:09,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:57:09,797 INFO L87 Difference]: Start difference. First operand 24078 states and 79960 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 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) [2020-12-17 23:57:10,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:10,158 INFO L93 Difference]: Finished difference Result 13368 states and 43072 transitions. [2020-12-17 23:57:10,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:57:10,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 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 [2020-12-17 23:57:10,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:10,159 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-12-17 23:57:10,160 INFO L78 Accepts]: Start accepts. Automaton has 13368 states and 43072 transitions. Word has length 48 [2020-12-17 23:57:10,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:10,160 INFO L481 AbstractCegarLoop]: Abstraction has 13368 states and 43072 transitions. [2020-12-17 23:57:10,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 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) [2020-12-17 23:57:10,160 INFO L276 IsEmpty]: Start isEmpty. Operand 13368 states and 43072 transitions. [2020-12-17 23:57:10,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-17 23:57:10,183 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:10,183 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] [2020-12-17 23:57:10,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-17 23:57:10,183 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:10,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:10,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1922996831, now seen corresponding path program 1 times [2020-12-17 23:57:10,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:10,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819475654] [2020-12-17 23:57:10,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:10,309 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 23:57:10,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819475654] [2020-12-17 23:57:10,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:10,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-17 23:57:10,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791769312] [2020-12-17 23:57:10,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-17 23:57:10,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:10,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-17 23:57:10,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-17 23:57:10,311 INFO L87 Difference]: Start difference. First operand 13368 states and 43072 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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) [2020-12-17 23:57:10,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:10,713 INFO L93 Difference]: Finished difference Result 8418 states and 27094 transitions. [2020-12-17 23:57:10,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-17 23:57:10,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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 [2020-12-17 23:57:10,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:10,715 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-12-17 23:57:10,715 INFO L78 Accepts]: Start accepts. Automaton has 8418 states and 27094 transitions. Word has length 50 [2020-12-17 23:57:10,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:10,716 INFO L481 AbstractCegarLoop]: Abstraction has 8418 states and 27094 transitions. [2020-12-17 23:57:10,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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) [2020-12-17 23:57:10,716 INFO L276 IsEmpty]: Start isEmpty. Operand 8418 states and 27094 transitions. [2020-12-17 23:57:10,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-17 23:57:10,736 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:10,736 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] [2020-12-17 23:57:10,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-17 23:57:10,736 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:10,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:10,737 INFO L82 PathProgramCache]: Analyzing trace with hash 2028376861, now seen corresponding path program 1 times [2020-12-17 23:57:10,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:10,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732624178] [2020-12-17 23:57:10,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:10,837 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 23:57:10,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732624178] [2020-12-17 23:57:10,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:10,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:57:10,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638980384] [2020-12-17 23:57:10,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:57:10,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:10,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:57:10,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:57:10,840 INFO L87 Difference]: Start difference. First operand 8418 states and 27094 transitions. 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) [2020-12-17 23:57:10,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:10,994 INFO L93 Difference]: Finished difference Result 13128 states and 41764 transitions. [2020-12-17 23:57:10,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-17 23:57:10,995 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 [2020-12-17 23:57:10,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:10,995 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 23:57:10,996 INFO L78 Accepts]: Start accepts. Automaton has 13128 states and 41764 transitions. Word has length 54 [2020-12-17 23:57:10,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:10,996 INFO L481 AbstractCegarLoop]: Abstraction has 13128 states and 41764 transitions. [2020-12-17 23:57:10,996 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) [2020-12-17 23:57:10,996 INFO L276 IsEmpty]: Start isEmpty. Operand 13128 states and 41764 transitions. [2020-12-17 23:57:11,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-17 23:57:11,028 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:11,028 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] [2020-12-17 23:57:11,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-17 23:57:11,028 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:11,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:11,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1950903709, now seen corresponding path program 2 times [2020-12-17 23:57:11,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:11,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337249434] [2020-12-17 23:57:11,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:11,276 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 23:57:11,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337249434] [2020-12-17 23:57:11,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:11,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:57:11,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053830522] [2020-12-17 23:57:11,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:57:11,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:11,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:57:11,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:57:11,283 INFO L87 Difference]: Start difference. First operand 13128 states and 41764 transitions. 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) [2020-12-17 23:57:11,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:11,505 INFO L93 Difference]: Finished difference Result 20412 states and 63944 transitions. [2020-12-17 23:57:11,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-17 23:57:11,506 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 [2020-12-17 23:57:11,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:11,507 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 23:57:11,511 INFO L78 Accepts]: Start accepts. Automaton has 20412 states and 63944 transitions. Word has length 54 [2020-12-17 23:57:11,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:11,512 INFO L481 AbstractCegarLoop]: Abstraction has 20412 states and 63944 transitions. [2020-12-17 23:57:11,512 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) [2020-12-17 23:57:11,512 INFO L276 IsEmpty]: Start isEmpty. Operand 20412 states and 63944 transitions. [2020-12-17 23:57:11,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-17 23:57:11,551 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:11,551 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] [2020-12-17 23:57:11,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-17 23:57:11,552 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:11,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:11,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1622631359, now seen corresponding path program 3 times [2020-12-17 23:57:11,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:11,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258975234] [2020-12-17 23:57:11,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:11,694 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 23:57:11,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258975234] [2020-12-17 23:57:11,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:11,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:57:11,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959404010] [2020-12-17 23:57:11,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:57:11,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:11,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:57:11,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:57:11,697 INFO L87 Difference]: Start difference. First operand 20412 states and 63944 transitions. 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) [2020-12-17 23:57:12,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:12,107 INFO L93 Difference]: Finished difference Result 26544 states and 82880 transitions. [2020-12-17 23:57:12,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-17 23:57:12,108 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 [2020-12-17 23:57:12,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:12,109 INFO L763 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 [2020-12-17 23:57:12,109 INFO L78 Accepts]: Start accepts. Automaton has 26544 states and 82880 transitions. Word has length 54 [2020-12-17 23:57:12,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:12,109 INFO L481 AbstractCegarLoop]: Abstraction has 26544 states and 82880 transitions. [2020-12-17 23:57:12,110 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) [2020-12-17 23:57:12,110 INFO L276 IsEmpty]: Start isEmpty. Operand 26544 states and 82880 transitions. [2020-12-17 23:57:12,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:57:12,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-17 23:57:12,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:57:12 BasicIcfg [2020-12-17 23:57:12,160 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:57:12,162 INFO L168 Benchmark]: Toolchain (without parser) took 8858.44 ms. Allocated memory was 302.0 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 277.2 MB in the beginning and 2.3 GB in the end (delta: -2.0 GB). Peak memory consumption was 358.5 MB. Max. memory is 16.0 GB. [2020-12-17 23:57:12,163 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 302.0 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:57:12,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.90 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 246.3 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-12-17 23:57:12,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.08 ms. Allocated memory is still 302.0 MB. Free memory was 246.3 MB in the beginning and 244.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:57:12,170 INFO L168 Benchmark]: Boogie Preprocessor took 45.40 ms. Allocated memory is still 302.0 MB. Free memory was 244.3 MB in the beginning and 285.1 MB in the end (delta: -40.8 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. [2020-12-17 23:57:12,172 INFO L168 Benchmark]: RCFGBuilder took 539.90 ms. Allocated memory is still 302.0 MB. Free memory was 285.1 MB in the beginning and 261.8 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:57:12,177 INFO L168 Benchmark]: TraceAbstraction took 7438.15 ms. Allocated memory was 302.0 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 261.8 MB in the beginning and 2.3 GB in the end (delta: -2.0 GB). Peak memory consumption was 343.6 MB. Max. memory is 16.0 GB. [2020-12-17 23:57:12,182 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 302.0 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 766.90 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 246.3 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.08 ms. Allocated memory is still 302.0 MB. Free memory was 246.3 MB in the beginning and 244.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 45.40 ms. Allocated memory is still 302.0 MB. Free memory was 244.3 MB in the beginning and 285.1 MB in the end (delta: -40.8 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. * RCFGBuilder took 539.90 ms. Allocated memory is still 302.0 MB. Free memory was 285.1 MB in the beginning and 261.8 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7438.15 ms. Allocated memory was 302.0 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 261.8 MB in the beginning and 2.3 GB in the end (delta: -2.0 GB). Peak memory consumption was 343.6 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: 7.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, HoareTripleCheckerStatistics: 1187 SDtfs, 1949 SDslu, 4149 SDs, 0 SdLazy, 486 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30624occurred in iteration=4, 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, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 475 ConstructedInterpolants, 0 QuantifiedInterpolants, 57217 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...