/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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_unsafe-10.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 02:09:05,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 02:09:05,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 02:09:05,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 02:09:05,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 02:09:05,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 02:09:05,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 02:09:05,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 02:09:05,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 02:09:05,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 02:09:05,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 02:09:05,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-03-04 02:09:05,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 02:09:05,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 02:09:05,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 02:09:05,704 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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-04 02:09:05,735 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 02:09:05,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 02:09:05,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 02:09:05,736 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 02:09:05,736 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 02:09:05,736 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 02:09:05,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 02:09:05,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 02:09:05,737 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 02:09:05,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 02:09:05,738 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 02:09:05,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 02:09:05,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 02:09:05,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 02:09:05,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 02:09:05,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 02:09:05,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 02:09:05,739 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 02:09:05,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 02:09:05,739 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 02:09:05,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 02:09:05,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 02:09:05,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 02:09:05,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 02:09:05,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 02:09:05,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 02:09:05,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 02:09:05,740 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 02:09:05,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 02:09:05,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 02:09:05,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 02:09:05,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 02:09:05,741 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 02:09:05,741 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 02:09:05,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 02:09:05,741 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 02:09:05,741 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 02:09:05,742 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 02:09:05,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 02:09:05,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 02:09:05,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 02:09:05,964 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-04 02:09:05,965 INFO L275 PluginConnector]: CDTParser initialized [2022-03-04 02:09:05,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_unsafe-10.i [2022-03-04 02:09:06,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4014194b5/c763d1f91db3467eaf06714ca48de24b/FLAG92da7bd43 [2022-03-04 02:09:06,408 INFO L306 CDTParser]: Found 1 translation units. [2022-03-04 02:09:06,408 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-10.i [2022-03-04 02:09:06,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4014194b5/c763d1f91db3467eaf06714ca48de24b/FLAG92da7bd43 [2022-03-04 02:09:06,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4014194b5/c763d1f91db3467eaf06714ca48de24b [2022-03-04 02:09:06,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 02:09:06,775 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-04 02:09:06,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-04 02:09:06,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-04 02:09:06,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-04 02:09:06,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:09:06" (1/1) ... [2022-03-04 02:09:06,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@528b2a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:09:06, skipping insertion in model container [2022-03-04 02:09:06,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:09:06" (1/1) ... [2022-03-04 02:09:06,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-04 02:09:06,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-04 02:09:07,203 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-10.i[30813,30826] [2022-03-04 02:09:07,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 02:09:07,212 INFO L203 MainTranslator]: Completed pre-run [2022-03-04 02:09:07,263 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-10.i[30813,30826] [2022-03-04 02:09:07,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 02:09:07,296 INFO L208 MainTranslator]: Completed translation [2022-03-04 02:09:07,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:09:07 WrapperNode [2022-03-04 02:09:07,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-04 02:09:07,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 02:09:07,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 02:09:07,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 02:09:07,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:09:07" (1/1) ... [2022-03-04 02:09:07,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:09:07" (1/1) ... [2022-03-04 02:09:07,353 INFO L137 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-03-04 02:09:07,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 02:09:07,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 02:09:07,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 02:09:07,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 02:09:07,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:09:07" (1/1) ... [2022-03-04 02:09:07,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:09:07" (1/1) ... [2022-03-04 02:09:07,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:09:07" (1/1) ... [2022-03-04 02:09:07,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:09:07" (1/1) ... [2022-03-04 02:09:07,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:09:07" (1/1) ... [2022-03-04 02:09:07,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:09:07" (1/1) ... [2022-03-04 02:09:07,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:09:07" (1/1) ... [2022-03-04 02:09:07,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 02:09:07,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 02:09:07,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 02:09:07,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 02:09:07,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:09:07" (1/1) ... [2022-03-04 02:09:07,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 02:09:07,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 02:09:07,427 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) [2022-03-04 02:09:07,442 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 [2022-03-04 02:09:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-03-04 02:09:07,467 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-03-04 02:09:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-03-04 02:09:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-03-04 02:09:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-04 02:09:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-04 02:09:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-04 02:09:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-04 02:09:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-04 02:09:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-04 02:09:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-04 02:09:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 02:09:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 02:09:07,470 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 02:09:07,615 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 02:09:07,616 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 02:09:07,759 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 02:09:07,765 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 02:09:07,765 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-04 02:09:07,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 02:09:07 BoogieIcfgContainer [2022-03-04 02:09:07,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 02:09:07,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 02:09:07,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 02:09:07,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 02:09:07,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:09:06" (1/3) ... [2022-03-04 02:09:07,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5adf7d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:09:07, skipping insertion in model container [2022-03-04 02:09:07,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:09:07" (2/3) ... [2022-03-04 02:09:07,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5adf7d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:09:07, skipping insertion in model container [2022-03-04 02:09:07,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 02:09:07" (3/3) ... [2022-03-04 02:09:07,775 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_unsafe-10.i [2022-03-04 02:09:07,780 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 02:09:07,780 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 02:09:07,780 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 02:09:07,780 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 02:09:07,824 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,824 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,824 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,825 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,825 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,825 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,825 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,825 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,826 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,826 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,826 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,826 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,827 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,827 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,827 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,827 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,828 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,828 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,828 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,828 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,828 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,828 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,829 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,829 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,829 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,829 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,829 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,829 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,830 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,830 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,830 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,830 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,830 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,831 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,831 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,831 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,833 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,834 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,834 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,834 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,834 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,836 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,836 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,836 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,836 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,836 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 02:09:07,837 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-04 02:09:07,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 02:09:07,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 02:09:07,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 02:09:07,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 02:09:07,904 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 02:09:07,909 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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=false, mMcrOverapproximateWrwc=true [2022-03-04 02:09:07,909 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-04 02:09:07,956 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 91 transitions and produced 92 states. [2022-03-04 02:09:07,958 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 02:09:07,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 02:09:07,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1927097680, now seen corresponding path program 1 times [2022-03-04 02:09:07,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 02:09:07,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244413995] [2022-03-04 02:09:07,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 02:09:07,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 02:09:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 02:09:08,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 02:09:08,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 02:09:08,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244413995] [2022-03-04 02:09:08,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244413995] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 02:09:08,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 02:09:08,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-04 02:09:08,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222137805] [2022-03-04 02:09:08,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 02:09:08,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-04 02:09:08,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 02:09:08,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-04 02:09:08,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-04 02:09:08,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:08,249 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 02:09:08,250 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) [2022-03-04 02:09:08,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:08,277 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 91 transitions and produced 92 states. [2022-03-04 02:09:08,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:08,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 02:09:08,279 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 02:09:08,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 02:09:08,282 INFO L85 PathProgramCache]: Analyzing trace with hash 560415153, now seen corresponding path program 1 times [2022-03-04 02:09:08,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 02:09:08,283 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429898078] [2022-03-04 02:09:08,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 02:09:08,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 02:09:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 02:09:08,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 02:09:08,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 02:09:08,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429898078] [2022-03-04 02:09:08,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429898078] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 02:09:08,406 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 02:09:08,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 02:09:08,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296307819] [2022-03-04 02:09:08,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 02:09:08,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 02:09:08,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 02:09:08,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 02:09:08,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 02:09:08,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:08,409 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 02:09:08,409 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) [2022-03-04 02:09:08,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:08,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:08,478 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 114 transitions and produced 115 states. [2022-03-04 02:09:08,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:08,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 02:09:08,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-04 02:09:08,479 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 02:09:08,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 02:09:08,480 INFO L85 PathProgramCache]: Analyzing trace with hash -951035470, now seen corresponding path program 1 times [2022-03-04 02:09:08,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 02:09:08,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659468741] [2022-03-04 02:09:08,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 02:09:08,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 02:09:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 02:09:08,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 02:09:08,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 02:09:08,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659468741] [2022-03-04 02:09:08,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659468741] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 02:09:08,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738381338] [2022-03-04 02:09:08,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 02:09:08,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 02:09:08,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 02:09:08,639 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) [2022-03-04 02:09:08,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 02:09:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 02:09:08,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-04 02:09:08,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 02:09:08,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 02:09:08,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 02:09:09,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 02:09:09,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738381338] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 02:09:09,111 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 02:09:09,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-04 02:09:09,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480287565] [2022-03-04 02:09:09,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 02:09:09,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-04 02:09:09,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 02:09:09,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-04 02:09:09,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-04 02:09:09,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:09,115 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 02:09:09,115 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) [2022-03-04 02:09:09,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:09,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 02:09:09,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:09,206 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 160 transitions and produced 161 states. [2022-03-04 02:09:09,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:09,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 02:09:09,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 02:09:09,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 02:09:09,429 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,SelfDestructingSolverStorable2 [2022-03-04 02:09:09,429 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 02:09:09,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 02:09:09,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1666707666, now seen corresponding path program 2 times [2022-03-04 02:09:09,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 02:09:09,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988495855] [2022-03-04 02:09:09,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 02:09:09,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 02:09:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 02:09:09,551 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 02:09:09,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 02:09:09,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988495855] [2022-03-04 02:09:09,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988495855] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 02:09:09,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427475810] [2022-03-04 02:09:09,553 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 02:09:09,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 02:09:09,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 02:09:09,556 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) [2022-03-04 02:09:09,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 02:09:09,654 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 02:09:09,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 02:09:09,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-04 02:09:09,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 02:09:09,828 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 02:09:09,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 02:09:09,991 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 02:09:09,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427475810] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 02:09:09,991 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 02:09:09,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-03-04 02:09:09,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649723225] [2022-03-04 02:09:09,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 02:09:09,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-04 02:09:09,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 02:09:09,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-04 02:09:09,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-03-04 02:09:09,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:09,995 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 02:09:09,995 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) [2022-03-04 02:09:09,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:09,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 02:09:09,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 02:09:09,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:10,177 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 252 transitions and produced 249 states. [2022-03-04 02:09:10,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:10,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 02:09:10,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 02:09:10,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 02:09:10,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 02:09:10,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 02:09:10,392 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 02:09:10,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 02:09:10,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1283180782, now seen corresponding path program 3 times [2022-03-04 02:09:10,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 02:09:10,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320092323] [2022-03-04 02:09:10,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 02:09:10,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 02:09:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 02:09:10,561 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 02:09:10,562 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 02:09:10,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320092323] [2022-03-04 02:09:10,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320092323] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 02:09:10,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082066775] [2022-03-04 02:09:10,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 02:09:10,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 02:09:10,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 02:09:10,564 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) [2022-03-04 02:09:10,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 02:09:10,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-03-04 02:09:10,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 02:09:10,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-04 02:09:10,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 02:09:10,862 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 02:09:10,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 02:09:11,215 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 02:09:11,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082066775] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 02:09:11,216 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 02:09:11,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-03-04 02:09:11,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309764402] [2022-03-04 02:09:11,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 02:09:11,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-03-04 02:09:11,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 02:09:11,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-03-04 02:09:11,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-03-04 02:09:11,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:11,218 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 02:09:11,218 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) [2022-03-04 02:09:11,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:11,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 02:09:11,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 02:09:11,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 02:09:11,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:11,720 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 436 transitions and produced 418 states. [2022-03-04 02:09:11,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 02:09:11,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 02:09:11,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 02:09:11,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 02:09:11,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-04 02:09:11,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 02:09:11,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 02:09:11,922 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 02:09:11,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 02:09:11,922 INFO L85 PathProgramCache]: Analyzing trace with hash 835265426, now seen corresponding path program 4 times [2022-03-04 02:09:11,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 02:09:11,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180099274] [2022-03-04 02:09:11,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 02:09:11,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 02:09:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 02:09:12,388 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 02:09:12,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 02:09:12,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180099274] [2022-03-04 02:09:12,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180099274] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 02:09:12,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999798132] [2022-03-04 02:09:12,389 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 02:09:12,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 02:09:12,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 02:09:12,391 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 02:09:12,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 02:09:12,482 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 02:09:12,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 02:09:12,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-04 02:09:12,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 02:09:15,144 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 572 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 02:09:15,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 02:17:25,693 WARN L228 SmtUtils]: Spent 6.74s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-04 02:21:34,557 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... [2022-03-04 02:23:23,956 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-04 02:23:23,958 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-04 02:23:23,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-04 02:23:24,001 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 [2022-03-04 02:23:24,001 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 02:23:24,001 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 02:23:24,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 02:23:24,159 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8 for 3ms.. [2022-03-04 02:23:24,160 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-04 02:23:24,160 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-04 02:23:24,167 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1] [2022-03-04 02:23:24,168 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 02:23:24,168 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 02:23:24,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 02:23:24 BasicIcfg [2022-03-04 02:23:24,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 02:23:24,171 INFO L158 Benchmark]: Toolchain (without parser) took 857395.14ms. Allocated memory was 195.0MB in the beginning and 282.1MB in the end (delta: 87.0MB). Free memory was 165.3MB in the beginning and 234.9MB in the end (delta: -69.6MB). Peak memory consumption was 179.7MB. Max. memory is 8.0GB. [2022-03-04 02:23:24,171 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory is still 155.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 02:23:24,171 INFO L158 Benchmark]: CACSL2BoogieTranslator took 519.49ms. Allocated memory is still 195.0MB. Free memory was 164.9MB in the beginning and 155.0MB in the end (delta: 9.9MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. [2022-03-04 02:23:24,171 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.47ms. Allocated memory is still 195.0MB. Free memory was 155.0MB in the beginning and 153.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-04 02:23:24,172 INFO L158 Benchmark]: Boogie Preprocessor took 31.37ms. Allocated memory is still 195.0MB. Free memory was 153.2MB in the beginning and 151.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 02:23:24,172 INFO L158 Benchmark]: RCFGBuilder took 381.17ms. Allocated memory is still 195.0MB. Free memory was 151.8MB in the beginning and 139.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-04 02:23:24,172 INFO L158 Benchmark]: TraceAbstraction took 856402.03ms. Allocated memory was 195.0MB in the beginning and 282.1MB in the end (delta: 87.0MB). Free memory was 138.9MB in the beginning and 234.9MB in the end (delta: -96.1MB). Peak memory consumption was 152.7MB. Max. memory is 8.0GB. [2022-03-04 02:23:24,174 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory is still 155.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 519.49ms. Allocated memory is still 195.0MB. Free memory was 164.9MB in the beginning and 155.0MB in the end (delta: 9.9MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.47ms. Allocated memory is still 195.0MB. Free memory was 155.0MB in the beginning and 153.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.37ms. Allocated memory is still 195.0MB. Free memory was 153.2MB in the beginning and 151.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 381.17ms. Allocated memory is still 195.0MB. Free memory was 151.8MB in the beginning and 139.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 856402.03ms. Allocated memory was 195.0MB in the beginning and 282.1MB in the end (delta: 87.0MB). Free memory was 138.9MB in the beginning and 234.9MB in the end (delta: -96.1MB). Peak memory consumption was 152.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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 PartialOrderCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8 for 3ms.. - 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 PartialOrderCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8 for 3ms.. - 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 PartialOrderCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8 for 3ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 112 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 856.3s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s 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