/usr/bin/java -Xmx8000000000 -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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_unsafe-7.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 12:37:16,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 12:37:16,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 12:37:16,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 12:37:16,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 12:37:16,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 12:37:16,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 12:37:16,705 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-15 12:37:16,730 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 12:37:16,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 12:37:16,731 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 12:37:16,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 12:37:16,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 12:37:16,732 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 12:37:16,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 12:37:16,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 12:37:16,732 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 12:37:16,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 12:37:16,733 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 12:37:16,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 12:37:16,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 12:37:16,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 12:37:16,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 12:37:16,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 12:37:16,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 12:37:16,734 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 12:37:16,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 12:37:16,734 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 12:37:16,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 12:37:16,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 12:37:16,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 12:37:16,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 12:37:16,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 12:37:16,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 12:37:16,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 12:37:16,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 12:37:16,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 12:37:16,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 12:37:16,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 12:37:16,735 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 12:37:16,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 12:37:16,735 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 12:37:16,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 12:37:16,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 12:37:16,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 12:37:16,941 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 12:37:16,941 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 12:37:16,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_unsafe-7.i [2022-03-15 12:37:16,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2de252b4f/57b49a4ac86740078d0f29e8db292bc2/FLAG42e599af7 [2022-03-15 12:37:17,356 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 12:37:17,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-7.i [2022-03-15 12:37:17,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2de252b4f/57b49a4ac86740078d0f29e8db292bc2/FLAG42e599af7 [2022-03-15 12:37:17,736 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2de252b4f/57b49a4ac86740078d0f29e8db292bc2 [2022-03-15 12:37:17,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 12:37:17,739 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 12:37:17,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 12:37:17,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 12:37:17,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 12:37:17,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 12:37:17" (1/1) ... [2022-03-15 12:37:17,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1710dec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:37:17, skipping insertion in model container [2022-03-15 12:37:17,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 12:37:17" (1/1) ... [2022-03-15 12:37:17,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 12:37:17,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 12:37:18,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-7.i[30811,30824] [2022-03-15 12:37:18,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 12:37:18,052 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 12:37:18,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-7.i[30811,30824] [2022-03-15 12:37:18,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 12:37:18,118 INFO L208 MainTranslator]: Completed translation [2022-03-15 12:37:18,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:37:18 WrapperNode [2022-03-15 12:37:18,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 12:37:18,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 12:37:18,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 12:37:18,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 12:37:18,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:37:18" (1/1) ... [2022-03-15 12:37:18,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:37:18" (1/1) ... [2022-03-15 12:37:18,168 INFO L137 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-03-15 12:37:18,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 12:37:18,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 12:37:18,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 12:37:18,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 12:37:18,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:37:18" (1/1) ... [2022-03-15 12:37:18,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:37:18" (1/1) ... [2022-03-15 12:37:18,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:37:18" (1/1) ... [2022-03-15 12:37:18,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:37:18" (1/1) ... [2022-03-15 12:37:18,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:37:18" (1/1) ... [2022-03-15 12:37:18,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:37:18" (1/1) ... [2022-03-15 12:37:18,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:37:18" (1/1) ... [2022-03-15 12:37:18,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 12:37:18,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 12:37:18,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 12:37:18,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 12:37:18,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:37:18" (1/1) ... [2022-03-15 12:37:18,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 12:37:18,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 12:37:18,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 12:37:18,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 12:37:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-03-15 12:37:18,247 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-03-15 12:37:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-03-15 12:37:18,247 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-03-15 12:37:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 12:37:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 12:37:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 12:37:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 12:37:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 12:37:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 12:37:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 12:37:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 12:37:18,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 12:37:18,249 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 12:37:18,385 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 12:37:18,386 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 12:37:18,560 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 12:37:18,564 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 12:37:18,564 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-15 12:37:18,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 12:37:18 BoogieIcfgContainer [2022-03-15 12:37:18,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 12:37:18,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 12:37:18,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 12:37:18,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 12:37:18,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 12:37:17" (1/3) ... [2022-03-15 12:37:18,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a7b8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 12:37:18, skipping insertion in model container [2022-03-15 12:37:18,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:37:18" (2/3) ... [2022-03-15 12:37:18,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a7b8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 12:37:18, skipping insertion in model container [2022-03-15 12:37:18,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 12:37:18" (3/3) ... [2022-03-15 12:37:18,571 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_unsafe-7.i [2022-03-15 12:37:18,574 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 12:37:18,575 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 12:37:18,575 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 12:37:18,575 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 12:37:18,598 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,598 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,598 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,598 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,598 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,599 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,599 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,599 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,601 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,602 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,602 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,602 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,602 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,602 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,602 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,602 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,603 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,603 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,603 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,603 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,603 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,603 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,603 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,603 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,604 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,604 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,604 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,604 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,604 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,604 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,605 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,605 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,605 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,605 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,605 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,605 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,607 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,607 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,608 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,608 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,608 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,609 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,609 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,609 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,610 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,610 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 12:37:18,610 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 12:37:18,642 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 12:37:18,649 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 12:37:18,649 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-15 12:37:18,656 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 96 transitions, 202 flow [2022-03-15 12:37:18,755 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2292 states, 2291 states have (on average 3.185508511567001) internal successors, (7298), 2291 states have internal predecessors, (7298), 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) [2022-03-15 12:37:18,761 INFO L276 IsEmpty]: Start isEmpty. Operand has 2292 states, 2291 states have (on average 3.185508511567001) internal successors, (7298), 2291 states have internal predecessors, (7298), 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) [2022-03-15 12:37:18,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-15 12:37:18,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 12:37:18,777 INFO L514 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] [2022-03-15 12:37:18,778 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 12:37:18,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 12:37:18,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1927097680, now seen corresponding path program 1 times [2022-03-15 12:37:18,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 12:37:18,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785726790] [2022-03-15 12:37:18,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 12:37:18,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 12:37:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 12:37:18,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 12:37:18,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 12:37:18,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785726790] [2022-03-15 12:37:18,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785726790] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 12:37:18,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 12:37:18,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 12:37:18,920 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326918023] [2022-03-15 12:37:18,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 12:37:18,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 12:37:18,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 12:37:18,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 12:37:18,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 12:37:18,948 INFO L87 Difference]: Start difference. First operand has 2292 states, 2291 states have (on average 3.185508511567001) internal successors, (7298), 2291 states have internal predecessors, (7298), 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 2 states, 2 states have (on average 26.5) internal successors, (53), 2 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) [2022-03-15 12:37:18,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 12:37:18,983 INFO L93 Difference]: Finished difference Result 2292 states and 6752 transitions. [2022-03-15 12:37:18,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 12:37:18,985 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 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 [2022-03-15 12:37:18,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 12:37:19,006 INFO L225 Difference]: With dead ends: 2292 [2022-03-15 12:37:19,006 INFO L226 Difference]: Without dead ends: 2292 [2022-03-15 12:37:19,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 12:37:19,010 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 12:37:19,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 12:37:19,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2022-03-15 12:37:19,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2292. [2022-03-15 12:37:19,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2292 states, 2291 states have (on average 2.947184635530336) internal successors, (6752), 2291 states have internal predecessors, (6752), 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) [2022-03-15 12:37:19,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 6752 transitions. [2022-03-15 12:37:19,161 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 6752 transitions. Word has length 53 [2022-03-15 12:37:19,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 12:37:19,166 INFO L470 AbstractCegarLoop]: Abstraction has 2292 states and 6752 transitions. [2022-03-15 12:37:19,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 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) [2022-03-15 12:37:19,166 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 6752 transitions. [2022-03-15 12:37:19,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-15 12:37:19,170 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 12:37:19,170 INFO L514 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] [2022-03-15 12:37:19,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 12:37:19,171 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 12:37:19,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 12:37:19,174 INFO L85 PathProgramCache]: Analyzing trace with hash 560415153, now seen corresponding path program 1 times [2022-03-15 12:37:19,174 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 12:37:19,174 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133330098] [2022-03-15 12:37:19,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 12:37:19,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 12:37:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 12:37:19,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 12:37:19,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 12:37:19,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133330098] [2022-03-15 12:37:19,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133330098] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 12:37:19,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 12:37:19,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 12:37:19,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602031671] [2022-03-15 12:37:19,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 12:37:19,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 12:37:19,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 12:37:19,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 12:37:19,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 12:37:19,281 INFO L87 Difference]: Start difference. First operand 2292 states and 6752 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2022-03-15 12:37:19,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 12:37:19,308 INFO L93 Difference]: Finished difference Result 2892 states and 8552 transitions. [2022-03-15 12:37:19,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 12:37:19,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 [2022-03-15 12:37:19,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 12:37:19,322 INFO L225 Difference]: With dead ends: 2892 [2022-03-15 12:37:19,323 INFO L226 Difference]: Without dead ends: 2892 [2022-03-15 12:37:19,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 12:37:19,326 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 51 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 12:37:19,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 124 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 12:37:19,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2022-03-15 12:37:19,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 2392. [2022-03-15 12:37:19,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2391 states have (on average 2.949393559180259) internal successors, (7052), 2391 states have internal predecessors, (7052), 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) [2022-03-15 12:37:19,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 7052 transitions. [2022-03-15 12:37:19,407 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 7052 transitions. Word has length 53 [2022-03-15 12:37:19,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 12:37:19,407 INFO L470 AbstractCegarLoop]: Abstraction has 2392 states and 7052 transitions. [2022-03-15 12:37:19,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2022-03-15 12:37:19,407 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 7052 transitions. [2022-03-15 12:37:19,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-15 12:37:19,411 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 12:37:19,411 INFO L514 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] [2022-03-15 12:37:19,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 12:37:19,412 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 12:37:19,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 12:37:19,412 INFO L85 PathProgramCache]: Analyzing trace with hash -951035470, now seen corresponding path program 1 times [2022-03-15 12:37:19,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 12:37:19,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124109465] [2022-03-15 12:37:19,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 12:37:19,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 12:37:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 12:37:19,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 12:37:19,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 12:37:19,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124109465] [2022-03-15 12:37:19,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124109465] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 12:37:19,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753110488] [2022-03-15 12:37:19,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 12:37:19,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 12:37:19,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 12:37:19,482 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 12:37:19,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 12:37:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 12:37:19,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-15 12:37:19,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 12:37:19,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 12:37:19,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 12:37:19,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 12:37:19,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753110488] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 12:37:19,875 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 12:37:19,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-15 12:37:19,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480206120] [2022-03-15 12:37:19,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 12:37:19,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 12:37:19,877 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 12:37:19,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 12:37:19,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-15 12:37:19,879 INFO L87 Difference]: Start difference. First operand 2392 states and 7052 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 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) [2022-03-15 12:37:19,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 12:37:19,974 INFO L93 Difference]: Finished difference Result 3792 states and 11252 transitions. [2022-03-15 12:37:19,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 12:37:19,975 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 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 60 [2022-03-15 12:37:19,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 12:37:19,990 INFO L225 Difference]: With dead ends: 3792 [2022-03-15 12:37:19,990 INFO L226 Difference]: Without dead ends: 3792 [2022-03-15 12:37:19,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-03-15 12:37:19,993 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 352 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 12:37:19,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 402 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 12:37:20,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3792 states. [2022-03-15 12:37:20,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3792 to 3792. [2022-03-15 12:37:20,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3792 states, 3791 states have (on average 2.9680823001846477) internal successors, (11252), 3791 states have internal predecessors, (11252), 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) [2022-03-15 12:37:20,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3792 states to 3792 states and 11252 transitions. [2022-03-15 12:37:20,106 INFO L78 Accepts]: Start accepts. Automaton has 3792 states and 11252 transitions. Word has length 60 [2022-03-15 12:37:20,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 12:37:20,107 INFO L470 AbstractCegarLoop]: Abstraction has 3792 states and 11252 transitions. [2022-03-15 12:37:20,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 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) [2022-03-15 12:37:20,108 INFO L276 IsEmpty]: Start isEmpty. Operand 3792 states and 11252 transitions. [2022-03-15 12:37:20,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-15 12:37:20,116 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 12:37:20,117 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 12:37:20,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-15 12:37:20,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 12:37:20,335 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 12:37:20,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 12:37:20,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1666707666, now seen corresponding path program 2 times [2022-03-15 12:37:20,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 12:37:20,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324726879] [2022-03-15 12:37:20,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 12:37:20,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 12:37:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 12:37:20,457 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 12:37:20,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 12:37:20,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324726879] [2022-03-15 12:37:20,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324726879] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 12:37:20,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343979631] [2022-03-15 12:37:20,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 12:37:20,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 12:37:20,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 12:37:20,463 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 12:37:20,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 12:37:20,547 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 12:37:20,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 12:37:20,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 12:37:20,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 12:37:20,679 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 12:37:20,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 12:37:20,837 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 12:37:20,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343979631] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 12:37:20,839 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 12:37:20,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-03-15 12:37:20,839 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326744683] [2022-03-15 12:37:20,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 12:37:20,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 12:37:20,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 12:37:20,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 12:37:20,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-03-15 12:37:20,843 INFO L87 Difference]: Start difference. First operand 3792 states and 11252 transitions. Second operand has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 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) [2022-03-15 12:37:21,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 12:37:21,016 INFO L93 Difference]: Finished difference Result 6592 states and 19652 transitions. [2022-03-15 12:37:21,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 12:37:21,017 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 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 74 [2022-03-15 12:37:21,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 12:37:21,050 INFO L225 Difference]: With dead ends: 6592 [2022-03-15 12:37:21,050 INFO L226 Difference]: Without dead ends: 6592 [2022-03-15 12:37:21,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2022-03-15 12:37:21,051 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 1142 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 12:37:21,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 626 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 12:37:21,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6592 states. [2022-03-15 12:37:21,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6592 to 6592. [2022-03-15 12:37:21,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6592 states, 6591 states have (on average 2.9816416325292066) internal successors, (19652), 6591 states have internal predecessors, (19652), 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) [2022-03-15 12:37:21,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6592 states to 6592 states and 19652 transitions. [2022-03-15 12:37:21,219 INFO L78 Accepts]: Start accepts. Automaton has 6592 states and 19652 transitions. Word has length 74 [2022-03-15 12:37:21,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 12:37:21,220 INFO L470 AbstractCegarLoop]: Abstraction has 6592 states and 19652 transitions. [2022-03-15 12:37:21,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 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) [2022-03-15 12:37:21,220 INFO L276 IsEmpty]: Start isEmpty. Operand 6592 states and 19652 transitions. [2022-03-15 12:37:21,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-03-15 12:37:21,234 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 12:37:21,235 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 12:37:21,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-15 12:37:21,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-03-15 12:37:21,452 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 12:37:21,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 12:37:21,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1283180782, now seen corresponding path program 3 times [2022-03-15 12:37:21,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 12:37:21,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064990621] [2022-03-15 12:37:21,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 12:37:21,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 12:37:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 12:37:21,638 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 12:37:21,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 12:37:21,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064990621] [2022-03-15 12:37:21,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064990621] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 12:37:21,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880903501] [2022-03-15 12:37:21,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 12:37:21,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 12:37:21,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 12:37:21,639 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 12:37:21,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 12:37:21,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-03-15 12:37:21,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 12:37:21,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-15 12:37:21,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 12:37:21,850 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 12:37:21,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 12:37:22,138 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 12:37:22,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880903501] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 12:37:22,138 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 12:37:22,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-03-15 12:37:22,138 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5360558] [2022-03-15 12:37:22,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 12:37:22,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-03-15 12:37:22,139 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 12:37:22,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-03-15 12:37:22,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-03-15 12:37:22,140 INFO L87 Difference]: Start difference. First operand 6592 states and 19652 transitions. Second operand has 34 states, 34 states have (on average 4.705882352941177) internal successors, (160), 34 states have internal predecessors, (160), 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) [2022-03-15 12:37:22,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 12:37:22,665 INFO L93 Difference]: Finished difference Result 12192 states and 36452 transitions. [2022-03-15 12:37:22,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 12:37:22,665 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.705882352941177) internal successors, (160), 34 states have internal predecessors, (160), 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 102 [2022-03-15 12:37:22,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 12:37:22,693 INFO L225 Difference]: With dead ends: 12192 [2022-03-15 12:37:22,693 INFO L226 Difference]: Without dead ends: 12192 [2022-03-15 12:37:22,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1192, Invalid=2590, Unknown=0, NotChecked=0, Total=3782 [2022-03-15 12:37:22,695 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 2811 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 12:37:22,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2811 Valid, 1197 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 12:37:22,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12192 states. [2022-03-15 12:37:22,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12192 to 12192. [2022-03-15 12:37:22,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12192 states, 12191 states have (on average 2.990074645230088) internal successors, (36452), 12191 states have internal predecessors, (36452), 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) [2022-03-15 12:37:22,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12192 states to 12192 states and 36452 transitions. [2022-03-15 12:37:22,962 INFO L78 Accepts]: Start accepts. Automaton has 12192 states and 36452 transitions. Word has length 102 [2022-03-15 12:37:22,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 12:37:22,962 INFO L470 AbstractCegarLoop]: Abstraction has 12192 states and 36452 transitions. [2022-03-15 12:37:22,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.705882352941177) internal successors, (160), 34 states have internal predecessors, (160), 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) [2022-03-15 12:37:22,962 INFO L276 IsEmpty]: Start isEmpty. Operand 12192 states and 36452 transitions. [2022-03-15 12:37:22,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-15 12:37:22,987 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 12:37:22,987 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 12:37:23,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-15 12:37:23,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 12:37:23,205 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 12:37:23,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 12:37:23,206 INFO L85 PathProgramCache]: Analyzing trace with hash 835265426, now seen corresponding path program 4 times [2022-03-15 12:37:23,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 12:37:23,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59163638] [2022-03-15 12:37:23,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 12:37:23,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 12:37:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 12:37:23,599 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 12:37:23,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 12:37:23,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59163638] [2022-03-15 12:37:23,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59163638] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 12:37:23,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950991800] [2022-03-15 12:37:23,600 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 12:37:23,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 12:37:23,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 12:37:23,601 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 12:37:23,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 12:37:23,736 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 12:37:23,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 12:37:23,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-15 12:37:23,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 12:37:26,036 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 572 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 12:37:26,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 12:41:21,662 WARN L228 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-15 12:50:15,344 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_~i~0_8 Int)) (or (forall ((v_~j~0_8 Int)) (or (forall ((v_~cur~0_30 Int)) (or (and (forall ((v_~cur~0_28 Int) (aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (v_~prev~0_24 Int) (v_~cur~0_26 Int) (aux_mod_v_~next~0_20_56 Int)) (let ((.cse0 (* 2 v_~cur~0_26))) (or (< aux_div_v_~cur~0_22_51 (+ .cse0 v_~cur~0_28 v_~cur~0_30 1 c_~cur~0)) (>= aux_mod_v_~cur~0_22_51 2) (< v_~cur~0_26 (+ (* 2 v_~cur~0_28) v_~cur~0_30 c_~cur~0)) (< (+ aux_mod_v_~next~0_20_56 (* 2 aux_mod_v_~cur~0_22_51) 11 v_~i~0_8) (+ .cse0 (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) (* 2 aux_div_v_~next~0_20_56) v_~cur~0_28 v_~cur~0_30 c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (> 0 aux_mod_v_~cur~0_22_51) (< v_~prev~0_24 (+ v_~cur~0_28 v_~cur~0_26 v_~cur~0_30 c_~cur~0)) (< v_~cur~0_28 (+ (* 2 v_~cur~0_30) c_~cur~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) (* 2 aux_div_v_~cur~0_22_51) v_~prev~0_24) (+ 23 (* 2 v_~i~0_8) aux_mod_v_~cur~0_22_51 (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~next~0_20_56)))) (forall ((v_~cur~0_28 Int) (aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (v_~prev~0_24 Int) (v_~cur~0_26 Int) (aux_mod_v_~next~0_20_56 Int)) (let ((.cse1 (* 2 v_~cur~0_26))) (or (< aux_div_v_~cur~0_22_51 (+ .cse1 v_~cur~0_28 v_~cur~0_30 1 c_~cur~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) (* 2 aux_div_v_~cur~0_22_51) v_~prev~0_24) (+ 23 aux_mod_v_~cur~0_22_51 (* 2 v_~j~0_8) (* aux_mod_v_~next~0_20_56 2))) (>= aux_mod_v_~cur~0_22_51 2) (< v_~cur~0_26 (+ (* 2 v_~cur~0_28) v_~cur~0_30 c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (> 0 aux_mod_v_~cur~0_22_51) (< v_~prev~0_24 (+ v_~cur~0_28 v_~cur~0_26 v_~cur~0_30 c_~cur~0)) (< v_~cur~0_28 (+ (* 2 v_~cur~0_30) c_~cur~0)) (> 0 aux_mod_v_~next~0_20_56) (< (+ aux_mod_v_~next~0_20_56 (* 2 aux_mod_v_~cur~0_22_51) 11 v_~j~0_8) (+ .cse1 (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) (* 2 aux_div_v_~next~0_20_56) v_~cur~0_28 v_~cur~0_30 c_~cur~0)))))) (< v_~cur~0_30 (+ c_~prev~0 c_~cur~0)))) (not (<= v_~j~0_8 1)))) (not (<= v_~i~0_8 1)))) is different from false Received shutdown request... [2022-03-15 12:51:44,770 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-15 12:51:44,772 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-15 12:51:44,781 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 12:51:44,783 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 12:51:44,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-15 12:51:44,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 12:51:44,973 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 2ms.. [2022-03-15 12:51:44,974 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-15 12:51:44,974 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-15 12:51:44,976 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1] [2022-03-15 12:51:44,978 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 12:51:44,978 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 12:51:44,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 12:51:44 BasicIcfg [2022-03-15 12:51:44,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 12:51:44,980 INFO L158 Benchmark]: Toolchain (without parser) took 867241.08ms. Allocated memory was 173.0MB in the beginning and 411.0MB in the end (delta: 238.0MB). Free memory was 121.1MB in the beginning and 216.5MB in the end (delta: -95.5MB). Peak memory consumption was 312.1MB. Max. memory is 8.0GB. [2022-03-15 12:51:44,980 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 173.0MB. Free memory was 138.6MB in the beginning and 138.5MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 12:51:44,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.82ms. Allocated memory is still 173.0MB. Free memory was 120.8MB in the beginning and 139.7MB in the end (delta: -18.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-15 12:51:44,980 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.31ms. Allocated memory is still 173.0MB. Free memory was 139.7MB in the beginning and 138.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 12:51:44,980 INFO L158 Benchmark]: Boogie Preprocessor took 20.40ms. Allocated memory is still 173.0MB. Free memory was 138.1MB in the beginning and 136.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 12:51:44,980 INFO L158 Benchmark]: RCFGBuilder took 376.59ms. Allocated memory is still 173.0MB. Free memory was 136.6MB in the beginning and 124.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-15 12:51:44,981 INFO L158 Benchmark]: TraceAbstraction took 866412.29ms. Allocated memory was 173.0MB in the beginning and 411.0MB in the end (delta: 238.0MB). Free memory was 123.5MB in the beginning and 216.5MB in the end (delta: -93.0MB). Peak memory consumption was 314.8MB. Max. memory is 8.0GB. [2022-03-15 12:51:44,981 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 173.0MB. Free memory was 138.6MB in the beginning and 138.5MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 366.82ms. Allocated memory is still 173.0MB. Free memory was 120.8MB in the beginning and 139.7MB in the end (delta: -18.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.31ms. Allocated memory is still 173.0MB. Free memory was 139.7MB in the beginning and 138.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.40ms. Allocated memory is still 173.0MB. Free memory was 138.1MB in the beginning and 136.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 376.59ms. Allocated memory is still 173.0MB. Free memory was 136.6MB in the beginning and 124.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 866412.29ms. Allocated memory was 173.0MB in the beginning and 411.0MB in the end (delta: 238.0MB). Free memory was 123.5MB in the beginning and 216.5MB in the end (delta: -93.0MB). Peak memory consumption was 314.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 726]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 2ms.. - TimeoutResultAtElement [Line: 722]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 2ms.. - TimeoutResultAtElement [Line: 721]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 2ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 112 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 866.3s, OverallIterations: 6, TraceHistogramMax: 15, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4356 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4356 mSDsluCounter, 2427 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2006 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 206 IncrementalHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 439 mSDtfsCounter, 206 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 546 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1019 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12192occurred in iteration=5, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 500 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 1285 SizeOfPredicates, 22 NumberOfNonLiveVariables, 552 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 0/537 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 could not prove your program: Timeout Completed graceful shutdown