/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_unsafe-6.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 23:58:46,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 23:58:46,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 23:58:46,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 23:58:46,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 23:58:46,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 23:58:46,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 23:58:46,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 23:58:46,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 23:58:46,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 23:58:46,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 23:58:46,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 23:58:46,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 23:58:46,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 23:58:46,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 23:58:46,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 23:58:46,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 23:58:46,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 23:58:46,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 23:58:46,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 23:58:46,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 23:58:46,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 23:58:46,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 23:58:46,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 23:58:46,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 23:58:46,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 23:58:46,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 23:58:46,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 23:58:46,828 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.epf [2022-02-19 23:58:46,853 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 23:58:46,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 23:58:46,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 23:58:46,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 23:58:46,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 23:58:46,854 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 23:58:46,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 23:58:46,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 23:58:46,855 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 23:58:46,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 23:58:46,855 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 23:58:46,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 23:58:46,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 23:58:46,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 23:58:46,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 23:58:46,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 23:58:46,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 23:58:46,856 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 23:58:46,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 23:58:46,856 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 23:58:46,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 23:58:46,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 23:58:46,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 23:58:46,856 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 23:58:46,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 23:58:46,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 23:58:46,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 23:58:46,858 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 23:58:46,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 23:58:46,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 23:58:46,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 23:58:46,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 23:58:46,858 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 23:58:46,858 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 23:58:46,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 23:58:46,858 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 23:58:46,858 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 23:58:47,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 23:58:47,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 23:58:47,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 23:58:47,081 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-19 23:58:47,082 INFO L275 PluginConnector]: CDTParser initialized [2022-02-19 23:58:47,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_unsafe-6.i [2022-02-19 23:58:47,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c09ca45ff/de229078782b4b91b7b5056be31f5cff/FLAG2eb98cdf7 [2022-02-19 23:58:47,559 INFO L306 CDTParser]: Found 1 translation units. [2022-02-19 23:58:47,560 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-6.i [2022-02-19 23:58:47,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c09ca45ff/de229078782b4b91b7b5056be31f5cff/FLAG2eb98cdf7 [2022-02-19 23:58:47,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c09ca45ff/de229078782b4b91b7b5056be31f5cff [2022-02-19 23:58:47,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 23:58:47,589 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-19 23:58:47,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-19 23:58:47,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-19 23:58:47,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-19 23:58:47,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 11:58:47" (1/1) ... [2022-02-19 23:58:47,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61719856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 11:58:47, skipping insertion in model container [2022-02-19 23:58:47,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 11:58:47" (1/1) ... [2022-02-19 23:58:47,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-19 23:58:47,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-19 23:58:47,905 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-6.i[30811,30824] [2022-02-19 23:58:47,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-19 23:58:47,914 INFO L203 MainTranslator]: Completed pre-run [2022-02-19 23:58:47,946 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-6.i[30811,30824] [2022-02-19 23:58:47,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-19 23:58:47,967 INFO L208 MainTranslator]: Completed translation [2022-02-19 23:58:47,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 11:58:47 WrapperNode [2022-02-19 23:58:47,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-19 23:58:47,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 23:58:47,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 23:58:47,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 23:58:47,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 11:58:47" (1/1) ... [2022-02-19 23:58:47,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 11:58:47" (1/1) ... [2022-02-19 23:58:47,993 INFO L137 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-02-19 23:58:47,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 23:58:47,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 23:58:47,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 23:58:47,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 23:58:48,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 11:58:47" (1/1) ... [2022-02-19 23:58:48,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 11:58:47" (1/1) ... [2022-02-19 23:58:48,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 11:58:47" (1/1) ... [2022-02-19 23:58:48,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 11:58:47" (1/1) ... [2022-02-19 23:58:48,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 11:58:47" (1/1) ... [2022-02-19 23:58:48,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 11:58:47" (1/1) ... [2022-02-19 23:58:48,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 11:58:47" (1/1) ... [2022-02-19 23:58:48,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 23:58:48,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 23:58:48,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 23:58:48,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 23:58:48,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 11:58:47" (1/1) ... [2022-02-19 23:58:48,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 23:58:48,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:58:48,077 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) [2022-02-19 23:58:48,096 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 [2022-02-19 23:58:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-02-19 23:58:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-02-19 23:58:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-02-19 23:58:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-02-19 23:58:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-19 23:58:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-19 23:58:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-19 23:58:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-19 23:58:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-19 23:58:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-19 23:58:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-19 23:58:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 23:58:48,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 23:58:48,112 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 23:58:48,234 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 23:58:48,235 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 23:58:48,405 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 23:58:48,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 23:58:48,409 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-02-19 23:58:48,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:58:48 BoogieIcfgContainer [2022-02-19 23:58:48,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 23:58:48,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 23:58:48,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 23:58:48,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 23:58:48,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 11:58:47" (1/3) ... [2022-02-19 23:58:48,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8ff7af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 11:58:48, skipping insertion in model container [2022-02-19 23:58:48,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 11:58:47" (2/3) ... [2022-02-19 23:58:48,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8ff7af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 11:58:48, skipping insertion in model container [2022-02-19 23:58:48,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:58:48" (3/3) ... [2022-02-19 23:58:48,416 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_unsafe-6.i [2022-02-19 23:58:48,419 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 23:58:48,419 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 23:58:48,419 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 23:58:48,419 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 23:58:48,450 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,451 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,451 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,451 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,451 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,451 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,451 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,451 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,452 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,452 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,452 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,452 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,452 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,453 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,453 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,453 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,453 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,453 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,453 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,453 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,453 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,454 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,454 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,454 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,454 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,454 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,454 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,454 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,454 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,455 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,455 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,455 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,455 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,455 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,455 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,455 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,457 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,457 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,457 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,458 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,458 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,459 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,459 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,459 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,459 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,459 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 23:58:48,460 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-19 23:58:48,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 23:58:48,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:58:48,494 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) [2022-02-19 23:58:48,495 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 [2022-02-19 23:58:48,511 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 23:58:48,515 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=true, mMcrOverapproximateWrwc=true [2022-02-19 23:58:48,515 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-19 23:58:48,554 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 91 transitions and produced 92 states. [2022-02-19 23:58:48,555 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 23:58:48,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:58:48,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1927097680, now seen corresponding path program 1 times [2022-02-19 23:58:48,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:58:48,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407411421] [2022-02-19 23:58:48,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:58:48,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:58:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:58:48,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:58:48,693 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:58:48,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407411421] [2022-02-19 23:58:48,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407411421] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 23:58:48,694 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 23:58:48,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-19 23:58:48,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164991956] [2022-02-19 23:58:48,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 23:58:48,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-19 23:58:48,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:58:48,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-19 23:58:48,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-19 23:58:48,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:48,714 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:58:48,715 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) [2022-02-19 23:58:48,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:48,737 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 91 transitions and produced 92 states. [2022-02-19 23:58:48,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:48,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-19 23:58:48,738 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 23:58:48,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:58:48,740 INFO L85 PathProgramCache]: Analyzing trace with hash 560415153, now seen corresponding path program 1 times [2022-02-19 23:58:48,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:58:48,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513483040] [2022-02-19 23:58:48,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:58:48,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:58:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:58:48,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:58:48,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:58:48,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513483040] [2022-02-19 23:58:48,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513483040] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 23:58:48,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 23:58:48,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 23:58:48,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746954781] [2022-02-19 23:58:48,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 23:58:48,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 23:58:48,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:58:48,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 23:58:48,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 23:58:48,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:48,810 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:58:48,810 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) [2022-02-19 23:58:48,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:48,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:48,833 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 114 transitions and produced 115 states. [2022-02-19 23:58:48,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:48,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 23:58:48,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-19 23:58:48,834 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 23:58:48,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:58:48,834 INFO L85 PathProgramCache]: Analyzing trace with hash -951035470, now seen corresponding path program 1 times [2022-02-19 23:58:48,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:58:48,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252886936] [2022-02-19 23:58:48,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:58:48,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:58:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:58:48,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:58:48,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:58:48,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252886936] [2022-02-19 23:58:48,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252886936] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:58:48,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976148805] [2022-02-19 23:58:48,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:58:48,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:58:48,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:58:48,901 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) [2022-02-19 23:58:48,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 23:58:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:58:49,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-19 23:58:49,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:58:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:58:49,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:58:49,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:58:49,213 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976148805] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:58:49,213 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:58:49,213 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-19 23:58:49,213 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696162980] [2022-02-19 23:58:49,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:58:49,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-19 23:58:49,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:58:49,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-19 23:58:49,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-19 23:58:49,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:49,215 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:58:49,215 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) [2022-02-19 23:58:49,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:49,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 23:58:49,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:49,295 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 160 transitions and produced 161 states. [2022-02-19 23:58:49,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:49,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 23:58:49,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-19 23:58:49,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-19 23:58:49,515 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 [2022-02-19 23:58:49,515 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 23:58:49,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:58:49,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1666707666, now seen corresponding path program 2 times [2022-02-19 23:58:49,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:58:49,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280153063] [2022-02-19 23:58:49,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:58:49,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:58:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:58:49,624 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:58:49,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:58:49,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280153063] [2022-02-19 23:58:49,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280153063] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:58:49,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613896950] [2022-02-19 23:58:49,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 23:58:49,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:58:49,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:58:49,627 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) [2022-02-19 23:58:49,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 23:58:49,758 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 23:58:49,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:58:49,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-19 23:58:49,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:58:49,899 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:58:49,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:58:50,020 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:58:50,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613896950] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:58:50,021 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:58:50,021 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-02-19 23:58:50,021 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743755439] [2022-02-19 23:58:50,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:58:50,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-19 23:58:50,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:58:50,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-19 23:58:50,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-02-19 23:58:50,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:50,023 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:58:50,023 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) [2022-02-19 23:58:50,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:50,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 23:58:50,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-19 23:58:50,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:50,154 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 252 transitions and produced 249 states. [2022-02-19 23:58:50,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:50,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 23:58:50,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-19 23:58:50,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:58:50,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-19 23:58:50,367 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 [2022-02-19 23:58:50,368 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 23:58:50,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:58:50,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1283180782, now seen corresponding path program 3 times [2022-02-19 23:58:50,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:58:50,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654538409] [2022-02-19 23:58:50,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:58:50,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:58:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:58:50,593 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:58:50,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:58:50,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654538409] [2022-02-19 23:58:50,593 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654538409] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:58:50,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005205516] [2022-02-19 23:58:50,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 23:58:50,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:58:50,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:58:50,595 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) [2022-02-19 23:58:50,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 23:58:50,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-02-19 23:58:50,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:58:50,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-19 23:58:50,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:58:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:58:50,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:58:51,080 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:58:51,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005205516] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:58:51,081 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:58:51,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 31 [2022-02-19 23:58:51,082 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614981092] [2022-02-19 23:58:51,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:58:51,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-02-19 23:58:51,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:58:51,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-02-19 23:58:51,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2022-02-19 23:58:51,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:51,085 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:58:51,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.935483870967742) internal successors, (153), 31 states have internal predecessors, (153), 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) [2022-02-19 23:58:51,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:51,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 23:58:51,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-19 23:58:51,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:58:51,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:51,457 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 413 transitions and produced 397 states. [2022-02-19 23:58:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:58:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 23:58:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-19 23:58:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:58:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-19 23:58:51,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-19 23:58:51,674 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 [2022-02-19 23:58:51,675 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 23:58:51,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:58:51,675 INFO L85 PathProgramCache]: Analyzing trace with hash 2049692625, now seen corresponding path program 4 times [2022-02-19 23:58:51,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:58:51,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508864734] [2022-02-19 23:58:51,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:58:51,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:58:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:58:52,978 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 651 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:58:52,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:58:52,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508864734] [2022-02-19 23:58:52,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508864734] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:58:52,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519328351] [2022-02-19 23:58:52,978 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 23:58:52,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:58:52,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:58:52,980 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) [2022-02-19 23:58:52,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 23:58:53,047 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 23:58:53,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:58:53,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 47 conjunts are in the unsatisfiable core [2022-02-19 23:58:53,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:58:56,034 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 486 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:58:56,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 00:11:16,012 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 649 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 00:11:16,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519328351] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 00:11:16,014 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 00:11:16,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 139 [2022-02-20 00:11:16,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134260208] [2022-02-20 00:11:16,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 00:11:16,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 139 states [2022-02-20 00:11:16,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 00:11:16,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2022-02-20 00:11:16,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1221, Invalid=17780, Unknown=181, NotChecked=0, Total=19182 [2022-02-20 00:11:16,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 00:11:16,022 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 00:11:16,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 139 states, 139 states have (on average 3.050359712230216) internal successors, (424), 139 states have internal predecessors, (424), 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) [2022-02-20 00:11:16,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 00:11:16,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 00:11:16,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 00:11:16,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 00:11:16,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-02-20 00:11:16,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 00:13:23,320 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (* (- 1) c_~j~0)) (.cse6 (* (- 1) c_~i~0)) (.cse23 (* 2 c_~cur~0))) (let ((.cse3 (+ c_~prev~0 c_~next~0)) (.cse7 (+ .cse23 3 c_~prev~0)) (.cse11 (+ .cse23 c_~prev~0)) (.cse10 (+ c_~next~0 1)) (.cse9 (div (+ (- 3) .cse6 c_~cur~0) (- 2))) (.cse5 (+ (* 2 c_~next~0) 4 c_~cur~0)) (.cse12 (+ 2 c_~next~0 c_~cur~0)) (.cse17 (div (+ (- 3) .cse4 c_~cur~0) (- 2))) (.cse21 (+ c_~prev~0 1 c_~cur~0)) (.cse16 (+ c_~prev~0 c_~cur~0)) (.cse14 (+ c_~next~0 c_~cur~0))) (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 c_~prev~0 v_~cur~0_28 1 c_~cur~0)) (>= aux_mod_v_~cur~0_22_51 2) (< v_~cur~0_28 (+ (* 2 c_~cur~0) c_~prev~0)) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 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 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (< (+ aux_mod_v_~next~0_20_56 c_~i~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ .cse0 (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) v_~cur~0_28 c_~cur~0)) (> 0 aux_mod_v_~cur~0_22_51) (< v_~prev~0_24 (+ c_~prev~0 v_~cur~0_28 v_~cur~0_26 c_~cur~0)) (< v_~cur~0_26 (+ c_~prev~0 (* 2 v_~cur~0_28) c_~cur~0)) (> 0 aux_mod_v_~next~0_20_56)))) (forall ((v_~cur~0_26 Int)) (or (and (forall ((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) (aux_mod_v_~next~0_20_56 Int)) (let ((.cse1 (* 2 v_~cur~0_26))) (or (< v_~prev~0_24 (+ v_~cur~0_26 c_~cur~0)) (>= aux_mod_v_~cur~0_22_51 2) (< (+ aux_mod_v_~next~0_20_56 c_~j~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ .cse1 (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) (* 2 aux_div_v_~next~0_20_56) c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 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 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~cur~0_22_51) (< aux_div_v_~cur~0_22_51 (+ .cse1 1 c_~cur~0)) (> 0 aux_mod_v_~next~0_20_56)))) (forall ((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) (aux_mod_v_~next~0_20_56 Int)) (let ((.cse2 (* 2 v_~cur~0_26))) (or (< v_~prev~0_24 (+ v_~cur~0_26 c_~cur~0)) (>= aux_mod_v_~cur~0_22_51 2) (>= aux_mod_v_~next~0_20_56 2) (< (+ aux_mod_v_~next~0_20_56 c_~i~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ .cse2 (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) (* 2 aux_div_v_~next~0_20_56) 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 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~cur~0_22_51) (< aux_div_v_~cur~0_22_51 (+ .cse2 1 c_~cur~0)) (> 0 aux_mod_v_~next~0_20_56))))) (< v_~cur~0_26 (+ c_~prev~0 c_~cur~0)))) (< c_~i~0 c_~cur~0) (< c_~j~0 .cse3) (<= (div (+ (- 9) .cse4 c_~next~0 c_~cur~0) (- 2)) .cse5) (< c_~j~0 |c_ULTIMATE.start_main_~correct~0#1|) (<= (div (+ (- 7) c_~prev~0 .cse6 c_~cur~0) (- 2)) .cse7) (< c_~i~0 .cse3) (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 ((.cse8 (* 2 v_~cur~0_26))) (or (< (+ aux_mod_v_~next~0_20_56 c_~j~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ .cse8 (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) v_~cur~0_28 c_~cur~0)) (< aux_div_v_~cur~0_22_51 (+ .cse8 c_~prev~0 v_~cur~0_28 1 c_~cur~0)) (>= aux_mod_v_~cur~0_22_51 2) (< v_~cur~0_28 (+ (* 2 c_~cur~0) c_~prev~0)) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 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 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~cur~0_22_51) (< v_~prev~0_24 (+ c_~prev~0 v_~cur~0_28 v_~cur~0_26 c_~cur~0)) (< v_~cur~0_26 (+ c_~prev~0 (* 2 v_~cur~0_28) c_~cur~0)) (> 0 aux_mod_v_~next~0_20_56)))) (forall ((v_~prev~0_24 Int)) (or (not (<= c_~cur~0 v_~prev~0_24)) (and (forall ((aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< (+ aux_mod_v_~next~0_20_56 c_~i~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) c_~cur~0)) (>= aux_mod_v_~cur~0_22_51 2) (< aux_div_v_~cur~0_22_51 (+ c_~prev~0 1 c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 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 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~cur~0_22_51) (> 0 aux_mod_v_~next~0_20_56))) (forall ((aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< (+ aux_mod_v_~next~0_20_56 c_~j~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) c_~cur~0)) (>= aux_mod_v_~cur~0_22_51 2) (< aux_div_v_~cur~0_22_51 (+ c_~prev~0 1 c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 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 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~cur~0_22_51) (> 0 aux_mod_v_~next~0_20_56)))))) (<= .cse9 .cse10) (< c_~i~0 c_~next~0) (< c_~i~0 .cse11) (<= (div (+ .cse6 c_~next~0 (- 5)) (- 2)) .cse12) (< c_~i~0 |c_ULTIMATE.start_main_~correct~0#1|) (forall ((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) (aux_mod_v_~next~0_20_56 Int)) (let ((.cse13 (* 2 c_~cur~0))) (or (< v_~prev~0_24 (+ c_~prev~0 c_~cur~0)) (< (+ aux_mod_v_~next~0_20_56 c_~i~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ .cse13 (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) c_~prev~0 (* 2 aux_div_v_~next~0_20_56))) (>= aux_mod_v_~cur~0_22_51 2) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 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 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~cur~0_22_51) (< aux_div_v_~cur~0_22_51 (+ .cse13 c_~prev~0 1)) (> 0 aux_mod_v_~next~0_20_56)))) (<= (div (+ (- 7) c_~prev~0 .cse4 c_~cur~0) (- 2)) .cse7) (< c_~j~0 .cse14) (forall ((v_~cur~0_22 Int)) (or (< v_~cur~0_22 (+ c_~prev~0 c_~cur~0)) (and (forall ((aux_div_v_~next~0_20_56 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< (+ aux_mod_v_~next~0_20_56 c_~j~0 9) (+ (* 2 v_~cur~0_22) (* 2 aux_div_v_~next~0_20_56) c_~cur~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (>= aux_mod_v_~next~0_20_56 2) (> 0 aux_mod_v_~next~0_20_56))) (forall ((aux_div_v_~next~0_20_56 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< (+ aux_mod_v_~next~0_20_56 9 c_~i~0) (+ (* 2 v_~cur~0_22) (* 2 aux_div_v_~next~0_20_56) c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~next~0_20_56)))))) (< c_~i~0 |c_ULTIMATE.start_fib_#res#1|) (forall ((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) (aux_mod_v_~next~0_20_56 Int)) (let ((.cse15 (* 2 c_~cur~0))) (or (< v_~prev~0_24 (+ c_~prev~0 c_~cur~0)) (>= aux_mod_v_~cur~0_22_51 2) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 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 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~cur~0_22_51) (< aux_div_v_~cur~0_22_51 (+ .cse15 c_~prev~0 1)) (< (+ aux_mod_v_~next~0_20_56 c_~j~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ .cse15 (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) c_~prev~0 (* 2 aux_div_v_~next~0_20_56))) (> 0 aux_mod_v_~next~0_20_56)))) (< c_~j~0 .cse11) (< c_~j~0 .cse16) (<= .cse17 .cse10) (< c_~j~0 |c_ULTIMATE.start_fib_#res#1|) (forall ((v_~cur~0_28 Int)) (or (< v_~cur~0_28 (+ c_~prev~0 c_~cur~0)) (and (forall ((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 ((.cse18 (* 2 v_~cur~0_26))) (or (< v_~prev~0_24 (+ v_~cur~0_28 v_~cur~0_26 c_~cur~0)) (>= aux_mod_v_~cur~0_22_51 2) (< (+ aux_mod_v_~next~0_20_56 c_~i~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ .cse18 (* 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 c_~cur~0)) (< aux_div_v_~cur~0_22_51 (+ .cse18 v_~cur~0_28 1 c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 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 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~cur~0_22_51) (< v_~cur~0_26 (+ (* 2 v_~cur~0_28) c_~cur~0)) (> 0 aux_mod_v_~next~0_20_56)))) (forall ((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 ((.cse19 (* 2 v_~cur~0_26))) (or (< v_~prev~0_24 (+ v_~cur~0_28 v_~cur~0_26 c_~cur~0)) (>= aux_mod_v_~cur~0_22_51 2) (< (+ aux_mod_v_~next~0_20_56 c_~j~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ .cse19 (* 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 c_~cur~0)) (< aux_div_v_~cur~0_22_51 (+ .cse19 v_~cur~0_28 1 c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 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 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~cur~0_22_51) (< v_~cur~0_26 (+ (* 2 v_~cur~0_28) c_~cur~0)) (> 0 aux_mod_v_~next~0_20_56))))))) (<= 0 c_~prev~0) (forall ((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 ((.cse20 (* 2 v_~cur~0_26))) (or (>= aux_mod_v_~cur~0_22_51 2) (>= aux_mod_v_~next~0_20_56 2) (< v_~prev~0_24 (+ c_~prev~0 v_~cur~0_26 c_~cur~0)) (< aux_div_v_~cur~0_22_51 (+ .cse20 c_~prev~0 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 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~cur~0_22_51) (< (+ aux_mod_v_~next~0_20_56 c_~j~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ .cse20 (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) c_~cur~0)) (< v_~cur~0_26 (+ (* 2 c_~cur~0) c_~prev~0)) (> 0 aux_mod_v_~next~0_20_56)))) (<= .cse9 .cse21) (<= (div (+ (- 9) .cse6 c_~next~0 c_~cur~0) (- 2)) .cse5) (< c_~j~0 c_~cur~0) (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< (+ aux_mod_v_~next~0_20_56 c_~j~0 9) (+ (* 2 v_~cur~0_22) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) c_~cur~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (>= aux_mod_v_~next~0_20_56 2) (< v_~cur~0_22 (+ (* 2 c_~cur~0) c_~prev~0)) (> 0 aux_mod_v_~next~0_20_56))) (<= (div (+ .cse4 c_~next~0 (- 5)) (- 2)) .cse12) (<= .cse17 .cse21) (forall ((aux_div_v_~next~0_20_56 Int) (aux_mod_v_~next~0_20_56 Int)) (or (not (<= (+ (* 2 c_~cur~0) c_~prev~0 (* 2 aux_div_v_~next~0_20_56)) (+ aux_mod_v_~next~0_20_56 9 c_~i~0))) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 5 aux_div_v_~next~0_20_56) c_~cur~0) (+ 22 (* 2 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~next~0_20_56))) (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< (+ aux_mod_v_~next~0_20_56 9 c_~i~0) (+ (* 2 v_~cur~0_22) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (< v_~cur~0_22 (+ (* 2 c_~cur~0) c_~prev~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~next~0_20_56))) (< c_~j~0 c_~next~0) (forall ((aux_div_v_~next~0_20_56 Int) (aux_mod_v_~next~0_20_56 Int)) (or (<= (+ (* 5 aux_div_v_~next~0_20_56) c_~cur~0) (+ 22 (* 2 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (not (<= (+ (* 2 c_~cur~0) c_~prev~0 (* 2 aux_div_v_~next~0_20_56)) (+ aux_mod_v_~next~0_20_56 c_~j~0 9))) (>= aux_mod_v_~next~0_20_56 2) (> 0 aux_mod_v_~next~0_20_56))) (< c_~i~0 .cse16) (forall ((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 ((.cse22 (* 2 v_~cur~0_26))) (or (< (+ aux_mod_v_~next~0_20_56 c_~i~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ .cse22 (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) c_~cur~0)) (>= aux_mod_v_~cur~0_22_51 2) (>= aux_mod_v_~next~0_20_56 2) (< v_~prev~0_24 (+ c_~prev~0 v_~cur~0_26 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 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (< aux_div_v_~cur~0_22_51 (+ .cse22 c_~prev~0 1 c_~cur~0)) (> 0 aux_mod_v_~cur~0_22_51) (< v_~cur~0_26 (+ (* 2 c_~cur~0) c_~prev~0)) (> 0 aux_mod_v_~next~0_20_56)))) (<= c_~i~0 1) (< c_~i~0 .cse14) (<= 1 c_~cur~0)))) is different from false [2022-02-20 00:13:23,489 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 460 transitions and produced 427 states. [2022-02-20 00:13:23,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 00:13:23,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 00:13:23,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 00:13:23,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 00:13:23,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-20 00:13:23,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-20 00:13:23,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-20 00:13:23,690 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 [2022-02-20 00:13:23,691 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 00:13:23,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 00:13:23,691 INFO L85 PathProgramCache]: Analyzing trace with hash -77689536, now seen corresponding path program 1 times [2022-02-20 00:13:23,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 00:13:23,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736425193] [2022-02-20 00:13:23,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 00:13:23,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 00:13:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 00:13:23,741 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 653 trivial. 0 not checked. [2022-02-20 00:13:23,741 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 00:13:23,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736425193] [2022-02-20 00:13:23,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736425193] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 00:13:23,742 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 00:13:23,742 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 00:13:23,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61364535] [2022-02-20 00:13:23,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 00:13:23,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 00:13:23,742 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 00:13:23,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 00:13:23,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 00:13:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 00:13:23,743 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 00:13:23,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2022-02-20 00:13:23,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 00:13:23,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 00:13:23,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 00:13:23,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 00:13:23,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-02-20 00:13:23,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-20 00:13:23,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-20 00:13:28,950 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 [2022-02-20 00:13:28,950 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 [2022-02-20 00:13:29,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-20 00:13:30,151 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-02-20 00:13:30,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-20 00:13:30,299 WARN L594 AbstractCegarLoop]: Verification canceled: while executing Executor. [2022-02-20 00:13:30,301 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-20 00:13:30,301 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-20 00:13:30,301 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-20 00:13:30,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2022-02-20 00:13:30,313 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2022-02-20 00:13:30,315 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 00:13:30,315 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 00:13:30,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 12:13:30 BasicIcfg [2022-02-20 00:13:30,316 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 00:13:30,317 INFO L158 Benchmark]: Toolchain (without parser) took 882727.92ms. Allocated memory was 233.8MB in the beginning and 337.6MB in the end (delta: 103.8MB). Free memory was 181.4MB in the beginning and 197.0MB in the end (delta: -15.5MB). Peak memory consumption was 88.7MB. Max. memory is 8.0GB. [2022-02-20 00:13:30,317 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 233.8MB. Free memory is still 199.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 00:13:30,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.77ms. Allocated memory is still 233.8MB. Free memory was 181.2MB in the beginning and 199.6MB in the end (delta: -18.4MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. [2022-02-20 00:13:30,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.84ms. Allocated memory is still 233.8MB. Free memory was 199.6MB in the beginning and 197.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-20 00:13:30,319 INFO L158 Benchmark]: Boogie Preprocessor took 28.48ms. Allocated memory is still 233.8MB. Free memory was 197.9MB in the beginning and 196.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 00:13:30,319 INFO L158 Benchmark]: RCFGBuilder took 388.09ms. Allocated memory is still 233.8MB. Free memory was 196.5MB in the beginning and 183.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-20 00:13:30,319 INFO L158 Benchmark]: TraceAbstraction took 881904.80ms. Allocated memory was 233.8MB in the beginning and 337.6MB in the end (delta: 103.8MB). Free memory was 183.4MB in the beginning and 197.0MB in the end (delta: -13.6MB). Peak memory consumption was 90.7MB. Max. memory is 8.0GB. [2022-02-20 00:13:30,320 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 233.8MB. Free memory is still 199.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 376.77ms. Allocated memory is still 233.8MB. Free memory was 181.2MB in the beginning and 199.6MB in the end (delta: -18.4MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.84ms. Allocated memory is still 233.8MB. Free memory was 199.6MB in the beginning and 197.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.48ms. Allocated memory is still 233.8MB. Free memory was 197.9MB in the beginning and 196.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 388.09ms. Allocated memory is still 233.8MB. Free memory was 196.5MB in the beginning and 183.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 881904.80ms. Allocated memory was 233.8MB in the beginning and 337.6MB in the end (delta: 103.8MB). Free memory was 183.4MB in the beginning and 197.0MB in the end (delta: -13.6MB). Peak memory consumption was 90.7MB. 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 executing Executor. - 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 executing Executor. - 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 executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 112 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 881.8s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 134.7s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 134, 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, 745.5s InterpolantComputationTime, 1045 NumberOfCodeBlocks, 1028 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1417 ConstructedInterpolants, 88 QuantifiedInterpolants, 18607 SizeOfPredicates, 68 NumberOfNonLiveVariables, 841 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 15 InterpolantComputations, 3 PerfectInterpolantSequences, 1139/3143 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