/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:09:33,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:09:33,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:09:33,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 10:09:33,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 10:09:33,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 10:09:33,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 10:09:33,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 10:09:33,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 10:09:33,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 10:09:33,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 10:09:33,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 10:09:33,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:09:33,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:09:33,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:09:33,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:09:33,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:09:33,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:09:33,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:09:33,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:09:33,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:09:33,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:09:33,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:09:33,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:09:33,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 10:09:33,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:09:33,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:09:33,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:09:33,762 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-Separate.epf [2021-06-05 10:09:33,783 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:09:33,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:09:33,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:09:33,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:09:33,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:09:33,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:09:33,786 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:09:33,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:09:33,786 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:09:33,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:09:33,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:09:33,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:09:33,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:09:33,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:09:33,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:09:33,787 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:09:33,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:09:33,787 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:09:33,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:09:33,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:09:33,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:09:33,787 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:09:33,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:09:33,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:09:33,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:09:33,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:09:33,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:09:33,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:09:33,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:09:33,788 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:09:33,788 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:09:33,788 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:09:33,789 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:09:34,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:09:34,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:09:34,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:09:34,039 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:09:34,039 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:09:34,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2021-06-05 10:09:34,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10309b904/ed16749f4698477a90d5560c5902a28a/FLAGadbfd4f6f [2021-06-05 10:09:34,672 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:09:34,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2021-06-05 10:09:34,682 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10309b904/ed16749f4698477a90d5560c5902a28a/FLAGadbfd4f6f [2021-06-05 10:09:34,871 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10309b904/ed16749f4698477a90d5560c5902a28a [2021-06-05 10:09:34,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:09:34,874 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:09:34,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:09:34,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:09:34,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:09:34,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:09:34" (1/1) ... [2021-06-05 10:09:34,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6be7a125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:09:34, skipping insertion in model container [2021-06-05 10:09:34,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:09:34" (1/1) ... [2021-06-05 10:09:34,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:09:34,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:09:35,020 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i[950,963] [2021-06-05 10:09:35,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:09:35,128 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:09:35,135 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i[950,963] [2021-06-05 10:09:35,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:09:35,203 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:09:35,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:09:35 WrapperNode [2021-06-05 10:09:35,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:09:35,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:09:35,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:09:35,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:09:35,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:09:35" (1/1) ... [2021-06-05 10:09:35,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:09:35" (1/1) ... [2021-06-05 10:09:35,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:09:35,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:09:35,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:09:35,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:09:35,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:09:35" (1/1) ... [2021-06-05 10:09:35,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:09:35" (1/1) ... [2021-06-05 10:09:35,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:09:35" (1/1) ... [2021-06-05 10:09:35,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:09:35" (1/1) ... [2021-06-05 10:09:35,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:09:35" (1/1) ... [2021-06-05 10:09:35,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:09:35" (1/1) ... [2021-06-05 10:09:35,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:09:35" (1/1) ... [2021-06-05 10:09:35,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:09:35,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:09:35,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:09:35,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:09:35,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:09:35" (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 [2021-06-05 10:09:35,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:09:35,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:09:35,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:09:35,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:09:35,361 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:09:35,361 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:09:35,361 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:09:35,362 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:09:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:09:35,362 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:09:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:09:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:09:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:09:35,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:09:35,363 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:09:35,730 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:09:35,731 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:09:35,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:09:35 BoogieIcfgContainer [2021-06-05 10:09:35,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:09:35,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:09:35,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:09:35,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:09:35,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:09:34" (1/3) ... [2021-06-05 10:09:35,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335337c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:09:35, skipping insertion in model container [2021-06-05 10:09:35,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:09:35" (2/3) ... [2021-06-05 10:09:35,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335337c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:09:35, skipping insertion in model container [2021-06-05 10:09:35,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:09:35" (3/3) ... [2021-06-05 10:09:35,739 INFO L111 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2021-06-05 10:09:35,743 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:09:35,743 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:09:35,743 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:09:35,744 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:09:35,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,769 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,770 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,770 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,770 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,770 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,770 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,770 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,770 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,770 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,771 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,771 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,772 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,772 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,774 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,774 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,779 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,779 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,782 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,782 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,786 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,786 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,786 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,786 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,788 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,788 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:09:35,791 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:09:35,806 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 10:09:35,826 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:09:35,826 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:09:35,826 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:09:35,826 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:09:35,826 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:09:35,826 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:09:35,826 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:09:35,827 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:09:35,836 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-05 10:09:36,233 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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) [2021-06-05 10:09:36,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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) [2021-06-05 10:09:36,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 10:09:36,298 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:36,299 INFO L521 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] [2021-06-05 10:09:36,299 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:36,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:36,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1432389661, now seen corresponding path program 1 times [2021-06-05 10:09:36,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:36,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024575103] [2021-06-05 10:09:36,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:36,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:36,561 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:36,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024575103] [2021-06-05 10:09:36,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024575103] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:36,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:36,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:09:36,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180357283] [2021-06-05 10:09:36,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:09:36,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:36,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:09:36,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:09:36,597 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-06-05 10:09:36,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:36,906 INFO L93 Difference]: Finished difference Result 13119 states and 45583 transitions. [2021-06-05 10:09:36,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:09:36,908 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2021-06-05 10:09:36,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:36,947 INFO L225 Difference]: With dead ends: 13119 [2021-06-05 10:09:36,947 INFO L226 Difference]: Without dead ends: 4964 [2021-06-05 10:09:36,948 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 112.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:09:36,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4964 states. [2021-06-05 10:09:37,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4964 to 4964. [2021-06-05 10:09:37,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4964 states, 4963 states have (on average 3.4009671569615154) internal successors, (16879), 4963 states have internal predecessors, (16879), 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) [2021-06-05 10:09:37,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4964 states to 4964 states and 16879 transitions. [2021-06-05 10:09:37,203 INFO L78 Accepts]: Start accepts. Automaton has 4964 states and 16879 transitions. Word has length 49 [2021-06-05 10:09:37,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:37,205 INFO L482 AbstractCegarLoop]: Abstraction has 4964 states and 16879 transitions. [2021-06-05 10:09:37,206 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-06-05 10:09:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand 4964 states and 16879 transitions. [2021-06-05 10:09:37,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 10:09:37,218 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:37,218 INFO L521 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] [2021-06-05 10:09:37,218 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:09:37,218 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:37,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:37,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1311501732, now seen corresponding path program 1 times [2021-06-05 10:09:37,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:37,221 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893914629] [2021-06-05 10:09:37,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:37,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:37,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:37,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893914629] [2021-06-05 10:09:37,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893914629] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:37,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:37,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:09:37,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579952231] [2021-06-05 10:09:37,467 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:09:37,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:37,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:09:37,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:09:37,468 INFO L87 Difference]: Start difference. First operand 4964 states and 16879 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2021-06-05 10:09:37,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:37,597 INFO L93 Difference]: Finished difference Result 5652 states and 19020 transitions. [2021-06-05 10:09:37,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:09:37,598 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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 [2021-06-05 10:09:37,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:37,618 INFO L225 Difference]: With dead ends: 5652 [2021-06-05 10:09:37,618 INFO L226 Difference]: Without dead ends: 4448 [2021-06-05 10:09:37,619 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 186.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:09:37,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4448 states. [2021-06-05 10:09:37,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4448 to 4448. [2021-06-05 10:09:37,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4448 states, 4447 states have (on average 3.3692376883292106) internal successors, (14983), 4447 states have internal predecessors, (14983), 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) [2021-06-05 10:09:37,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4448 states to 4448 states and 14983 transitions. [2021-06-05 10:09:37,757 INFO L78 Accepts]: Start accepts. Automaton has 4448 states and 14983 transitions. Word has length 51 [2021-06-05 10:09:37,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:37,758 INFO L482 AbstractCegarLoop]: Abstraction has 4448 states and 14983 transitions. [2021-06-05 10:09:37,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2021-06-05 10:09:37,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4448 states and 14983 transitions. [2021-06-05 10:09:37,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 10:09:37,767 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:37,767 INFO L521 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] [2021-06-05 10:09:37,767 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:09:37,768 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:37,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:37,773 INFO L82 PathProgramCache]: Analyzing trace with hash 742880451, now seen corresponding path program 1 times [2021-06-05 10:09:37,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:37,774 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706807677] [2021-06-05 10:09:37,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:37,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:37,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:37,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706807677] [2021-06-05 10:09:37,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706807677] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:37,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:37,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:09:37,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436368948] [2021-06-05 10:09:37,866 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:09:37,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:37,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:09:37,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:09:37,867 INFO L87 Difference]: Start difference. First operand 4448 states and 14983 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-06-05 10:09:38,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:38,152 INFO L93 Difference]: Finished difference Result 8024 states and 26635 transitions. [2021-06-05 10:09:38,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 10:09:38,153 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-06-05 10:09:38,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:38,190 INFO L225 Difference]: With dead ends: 8024 [2021-06-05 10:09:38,190 INFO L226 Difference]: Without dead ends: 5996 [2021-06-05 10:09:38,190 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 222.8ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:09:38,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5996 states. [2021-06-05 10:09:38,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5996 to 4936. [2021-06-05 10:09:38,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4936 states, 4935 states have (on average 3.3426545086119552) internal successors, (16496), 4935 states have internal predecessors, (16496), 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) [2021-06-05 10:09:38,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4936 states to 4936 states and 16496 transitions. [2021-06-05 10:09:38,370 INFO L78 Accepts]: Start accepts. Automaton has 4936 states and 16496 transitions. Word has length 53 [2021-06-05 10:09:38,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:38,371 INFO L482 AbstractCegarLoop]: Abstraction has 4936 states and 16496 transitions. [2021-06-05 10:09:38,371 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-06-05 10:09:38,371 INFO L276 IsEmpty]: Start isEmpty. Operand 4936 states and 16496 transitions. [2021-06-05 10:09:38,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 10:09:38,379 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:38,379 INFO L521 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] [2021-06-05 10:09:38,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:09:38,380 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:38,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:38,380 INFO L82 PathProgramCache]: Analyzing trace with hash -904737545, now seen corresponding path program 2 times [2021-06-05 10:09:38,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:38,380 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807849072] [2021-06-05 10:09:38,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:38,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:38,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:38,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807849072] [2021-06-05 10:09:38,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807849072] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:38,451 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:38,451 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:09:38,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831114176] [2021-06-05 10:09:38,451 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:09:38,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:38,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:09:38,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:09:38,452 INFO L87 Difference]: Start difference. First operand 4936 states and 16496 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-06-05 10:09:38,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:38,586 INFO L93 Difference]: Finished difference Result 6610 states and 21904 transitions. [2021-06-05 10:09:38,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:09:38,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-06-05 10:09:38,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:38,594 INFO L225 Difference]: With dead ends: 6610 [2021-06-05 10:09:38,594 INFO L226 Difference]: Without dead ends: 3286 [2021-06-05 10:09:38,595 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 110.7ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:09:38,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states. [2021-06-05 10:09:38,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 3286. [2021-06-05 10:09:38,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 3285 states have (on average 3.2060882800608828) internal successors, (10532), 3285 states have internal predecessors, (10532), 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) [2021-06-05 10:09:38,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 10532 transitions. [2021-06-05 10:09:38,676 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 10532 transitions. Word has length 53 [2021-06-05 10:09:38,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:38,677 INFO L482 AbstractCegarLoop]: Abstraction has 3286 states and 10532 transitions. [2021-06-05 10:09:38,677 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-06-05 10:09:38,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 10532 transitions. [2021-06-05 10:09:38,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:09:38,684 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:38,685 INFO L521 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] [2021-06-05 10:09:38,687 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:09:38,687 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:38,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:38,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1490806147, now seen corresponding path program 1 times [2021-06-05 10:09:38,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:38,688 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287871493] [2021-06-05 10:09:38,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:38,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:38,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:38,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287871493] [2021-06-05 10:09:38,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287871493] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:38,818 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:38,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:09:38,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794438195] [2021-06-05 10:09:38,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:09:38,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:38,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:09:38,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:09:38,819 INFO L87 Difference]: Start difference. First operand 3286 states and 10532 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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) [2021-06-05 10:09:38,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:38,916 INFO L93 Difference]: Finished difference Result 4049 states and 12812 transitions. [2021-06-05 10:09:38,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:09:38,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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 [2021-06-05 10:09:38,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:38,922 INFO L225 Difference]: With dead ends: 4049 [2021-06-05 10:09:38,923 INFO L226 Difference]: Without dead ends: 3033 [2021-06-05 10:09:38,923 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 118.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:09:38,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3033 states. [2021-06-05 10:09:38,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3033 to 3033. [2021-06-05 10:09:38,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3033 states, 3032 states have (on average 3.161279683377309) internal successors, (9585), 3032 states have internal predecessors, (9585), 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) [2021-06-05 10:09:38,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3033 states to 3033 states and 9585 transitions. [2021-06-05 10:09:38,980 INFO L78 Accepts]: Start accepts. Automaton has 3033 states and 9585 transitions. Word has length 54 [2021-06-05 10:09:38,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:38,980 INFO L482 AbstractCegarLoop]: Abstraction has 3033 states and 9585 transitions. [2021-06-05 10:09:38,980 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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) [2021-06-05 10:09:38,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3033 states and 9585 transitions. [2021-06-05 10:09:38,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 10:09:38,985 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:38,985 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:09:38,985 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:09:38,985 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:38,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:38,986 INFO L82 PathProgramCache]: Analyzing trace with hash -881950140, now seen corresponding path program 1 times [2021-06-05 10:09:38,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:38,986 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216416984] [2021-06-05 10:09:38,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:39,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:39,093 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:39,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216416984] [2021-06-05 10:09:39,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216416984] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:39,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:39,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:09:39,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053284287] [2021-06-05 10:09:39,093 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:09:39,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:39,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:09:39,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:09:39,094 INFO L87 Difference]: Start difference. First operand 3033 states and 9585 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:09:39,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:39,210 INFO L93 Difference]: Finished difference Result 3153 states and 9695 transitions. [2021-06-05 10:09:39,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:09:39,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-06-05 10:09:39,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:39,216 INFO L225 Difference]: With dead ends: 3153 [2021-06-05 10:09:39,216 INFO L226 Difference]: Without dead ends: 2301 [2021-06-05 10:09:39,216 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 94.2ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:09:39,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2021-06-05 10:09:39,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 2301. [2021-06-05 10:09:39,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2300 states have (on average 3.0330434782608697) internal successors, (6976), 2300 states have internal predecessors, (6976), 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) [2021-06-05 10:09:39,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 6976 transitions. [2021-06-05 10:09:39,259 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 6976 transitions. Word has length 55 [2021-06-05 10:09:39,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:39,260 INFO L482 AbstractCegarLoop]: Abstraction has 2301 states and 6976 transitions. [2021-06-05 10:09:39,260 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:09:39,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 6976 transitions. [2021-06-05 10:09:39,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 10:09:39,264 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:39,264 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:09:39,264 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:09:39,264 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:39,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:39,264 INFO L82 PathProgramCache]: Analyzing trace with hash 278806149, now seen corresponding path program 1 times [2021-06-05 10:09:39,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:39,267 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710893540] [2021-06-05 10:09:39,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:39,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:39,379 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:39,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710893540] [2021-06-05 10:09:39,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710893540] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:39,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:39,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:09:39,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663081538] [2021-06-05 10:09:39,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:09:39,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:39,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:09:39,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:09:39,383 INFO L87 Difference]: Start difference. First operand 2301 states and 6976 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2021-06-05 10:09:39,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:39,497 INFO L93 Difference]: Finished difference Result 1941 states and 5722 transitions. [2021-06-05 10:09:39,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:09:39,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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 57 [2021-06-05 10:09:39,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:39,500 INFO L225 Difference]: With dead ends: 1941 [2021-06-05 10:09:39,500 INFO L226 Difference]: Without dead ends: 1329 [2021-06-05 10:09:39,500 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 89.5ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:09:39,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2021-06-05 10:09:39,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1281. [2021-06-05 10:09:39,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1280 states have (on average 2.86328125) internal successors, (3665), 1280 states have internal predecessors, (3665), 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) [2021-06-05 10:09:39,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 3665 transitions. [2021-06-05 10:09:39,519 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 3665 transitions. Word has length 57 [2021-06-05 10:09:39,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:39,520 INFO L482 AbstractCegarLoop]: Abstraction has 1281 states and 3665 transitions. [2021-06-05 10:09:39,520 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2021-06-05 10:09:39,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 3665 transitions. [2021-06-05 10:09:39,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 10:09:39,522 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:39,522 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:09:39,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:09:39,522 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:39,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:39,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1616809223, now seen corresponding path program 1 times [2021-06-05 10:09:39,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:39,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86719553] [2021-06-05 10:09:39,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:39,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:39,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:39,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86719553] [2021-06-05 10:09:39,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86719553] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:39,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:39,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:09:39,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196378077] [2021-06-05 10:09:39,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:09:39,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:39,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:09:39,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:09:39,608 INFO L87 Difference]: Start difference. First operand 1281 states and 3665 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-05 10:09:39,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:39,676 INFO L93 Difference]: Finished difference Result 1535 states and 4386 transitions. [2021-06-05 10:09:39,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:09:39,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2021-06-05 10:09:39,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:39,676 INFO L225 Difference]: With dead ends: 1535 [2021-06-05 10:09:39,676 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:09:39,677 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 76.7ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:09:39,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:09:39,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:09:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:09:39,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:09:39,677 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-06-05 10:09:39,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:39,677 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:09:39,677 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-05 10:09:39,677 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:09:39,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:09:39,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:09:39,679 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:09:39,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:09:39 BasicIcfg [2021-06-05 10:09:39,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:09:39,681 INFO L168 Benchmark]: Toolchain (without parser) took 4806.96 ms. Allocated memory was 325.1 MB in the beginning and 853.5 MB in the end (delta: 528.5 MB). Free memory was 287.0 MB in the beginning and 616.9 MB in the end (delta: -329.9 MB). Peak memory consumption was 200.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:09:39,681 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 325.1 MB. Free memory is still 304.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:09:39,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.14 ms. Allocated memory is still 325.1 MB. Free memory was 286.8 MB in the beginning and 286.6 MB in the end (delta: 271.0 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:09:39,682 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.91 ms. Allocated memory is still 325.1 MB. Free memory was 286.6 MB in the beginning and 284.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:09:39,682 INFO L168 Benchmark]: Boogie Preprocessor took 25.40 ms. Allocated memory is still 325.1 MB. Free memory was 284.5 MB in the beginning and 283.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:09:39,682 INFO L168 Benchmark]: RCFGBuilder took 455.15 ms. Allocated memory is still 325.1 MB. Free memory was 283.4 MB in the beginning and 257.2 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:09:39,682 INFO L168 Benchmark]: TraceAbstraction took 3945.46 ms. Allocated memory was 325.1 MB in the beginning and 853.5 MB in the end (delta: 528.5 MB). Free memory was 257.2 MB in the beginning and 616.9 MB in the end (delta: -359.7 MB). Peak memory consumption was 171.9 MB. Max. memory is 16.0 GB. [2021-06-05 10:09:39,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 325.1 MB. Free memory is still 304.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 318.14 ms. Allocated memory is still 325.1 MB. Free memory was 286.8 MB in the beginning and 286.6 MB in the end (delta: 271.0 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 45.91 ms. Allocated memory is still 325.1 MB. Free memory was 286.6 MB in the beginning and 284.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.40 ms. Allocated memory is still 325.1 MB. Free memory was 284.5 MB in the beginning and 283.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 455.15 ms. Allocated memory is still 325.1 MB. Free memory was 283.4 MB in the beginning and 257.2 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3945.46 ms. Allocated memory was 325.1 MB in the beginning and 853.5 MB in the end (delta: 528.5 MB). Free memory was 257.2 MB in the beginning and 616.9 MB in the end (delta: -359.7 MB). Peak memory consumption was 171.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3854.1ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 109.9ms, AutomataDifference: 1414.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 407.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 859 SDtfs, 1447 SDslu, 2758 SDs, 0 SdLazy, 293 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 189.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1012.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 760.8ms AutomataMinimizationTime, 8 MinimizatonAttempts, 1108 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.2ms SsaConstructionTime, 141.0ms SatisfiabilityAnalysisTime, 832.1ms InterpolantComputationTime, 433 NumberOfCodeBlocks, 433 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 425 ConstructedInterpolants, 0 QuantifiedInterpolants, 1341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...