/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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/triangular-longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 12:33:57,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 12:33:57,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 12:33:57,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-10 12:33:57,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-10 12:33:57,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-10 12:33:57,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-10 12:33:57,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-10 12:33:57,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-10 12:33:57,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-10 12:33:57,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-10 12:33:57,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-10 12:33:57,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-10 12:33:57,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-10 12:33:57,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-10 12:33:57,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-10 12:33:57,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-10 12:33:57,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-10 12:33:57,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-10 12:33:57,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-10 12:33:57,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-10 12:33:57,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-10 12:33:57,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-10 12:33:57,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-10 12:33:57,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-10 12:33:57,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-10 12:33:57,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-10 12:33:57,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-10 12:33:57,945 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-07-10 12:33:57,990 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 12:33:57,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 12:33:57,991 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 12:33:57,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 12:33:57,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 12:33:57,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 12:33:57,992 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 12:33:57,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 12:33:57,993 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 12:33:57,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 12:33:57,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 12:33:57,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 12:33:57,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 12:33:57,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 12:33:57,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 12:33:57,994 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 12:33:57,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 12:33:57,994 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 12:33:57,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 12:33:57,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 12:33:57,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 12:33:57,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 12:33:57,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 12:33:57,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 12:33:57,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 12:33:57,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 12:33:57,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 12:33:57,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 12:33:57,998 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-10 12:33:57,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 12:33:57,998 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 12:33:57,999 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 12:33:57,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 12:33:57,999 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-10 12:33:57,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 12:33:58,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 12:33:58,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 12:33:58,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 12:33:58,351 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-10 12:33:58,352 INFO L275 PluginConnector]: CDTParser initialized [2021-07-10 12:33:58,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/triangular-longest-1.i [2021-07-10 12:33:58,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88329617b/86c44a0e75c84bf09cdc0c055f8e4a2c/FLAG3bc8f10a4 [2021-07-10 12:33:58,857 INFO L306 CDTParser]: Found 1 translation units. [2021-07-10 12:33:58,858 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longest-1.i [2021-07-10 12:33:58,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88329617b/86c44a0e75c84bf09cdc0c055f8e4a2c/FLAG3bc8f10a4 [2021-07-10 12:33:59,224 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88329617b/86c44a0e75c84bf09cdc0c055f8e4a2c [2021-07-10 12:33:59,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 12:33:59,228 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-10 12:33:59,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-10 12:33:59,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-10 12:33:59,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-10 12:33:59,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161584ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59, skipping insertion in model container [2021-07-10 12:33:59,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-10 12:33:59,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-10 12:33:59,565 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longest-1.i[30962,30975] [2021-07-10 12:33:59,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-10 12:33:59,575 INFO L203 MainTranslator]: Completed pre-run [2021-07-10 12:33:59,637 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longest-1.i[30962,30975] [2021-07-10 12:33:59,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-10 12:33:59,681 INFO L208 MainTranslator]: Completed translation [2021-07-10 12:33:59,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59 WrapperNode [2021-07-10 12:33:59,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-10 12:33:59,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 12:33:59,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 12:33:59,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 12:33:59,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 12:33:59,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 12:33:59,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 12:33:59,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 12:33:59,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... [2021-07-10 12:33:59,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 12:33:59,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 12:33:59,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 12:33:59,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 12:33:59,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 12:33:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-07-10 12:33:59,820 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-07-10 12:33:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-07-10 12:33:59,820 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-07-10 12:33:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-10 12:33:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-10 12:33:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-10 12:33:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-10 12:33:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-10 12:33:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-10 12:33:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 12:33:59,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 12:33:59,822 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 12:34:00,058 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 12:34:00,058 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-10 12:34:00,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 12:34:00 BoogieIcfgContainer [2021-07-10 12:34:00,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 12:34:00,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 12:34:00,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 12:34:00,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 12:34:00,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 12:33:59" (1/3) ... [2021-07-10 12:34:00,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f027d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 12:34:00, skipping insertion in model container [2021-07-10 12:34:00,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 12:33:59" (2/3) ... [2021-07-10 12:34:00,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f027d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 12:34:00, skipping insertion in model container [2021-07-10 12:34:00,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 12:34:00" (3/3) ... [2021-07-10 12:34:00,065 INFO L111 eAbstractionObserver]: Analyzing ICFG triangular-longest-1.i [2021-07-10 12:34:00,070 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 12:34:00,070 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 12:34:00,070 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 12:34:00,071 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 12:34:00,095 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,095 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,095 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,096 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,096 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,096 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,096 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,096 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,096 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,097 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,097 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,097 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,097 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,097 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,098 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,098 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,098 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,098 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,099 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,099 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,099 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,099 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,099 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,099 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,100 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,100 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,100 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,100 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,100 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,101 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,101 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,101 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,101 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,101 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,101 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,101 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,102 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,102 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,102 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,102 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,102 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,103 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,103 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,103 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,103 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,103 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,104 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,104 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,104 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,104 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,105 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,105 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,105 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,105 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,105 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,105 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,107 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,107 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,108 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,108 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,108 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,108 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,112 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,112 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,112 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,113 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,113 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,113 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 12:34:00,115 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-10 12:34:00,135 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 12:34:00,218 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 12:34:00,219 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 12:34:00,219 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 12:34:00,219 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 12:34:00,219 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 12:34:00,220 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 12:34:00,220 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 12:34:00,220 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 12:34:00,322 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:00,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:00,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1392949741, now seen corresponding path program 1 times [2021-07-10 12:34:00,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:00,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862030573] [2021-07-10 12:34:00,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:00,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:34:00,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:00,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862030573] [2021-07-10 12:34:00,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862030573] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 12:34:00,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 12:34:00,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-10 12:34:00,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844967554] [2021-07-10 12:34:00,556 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-10 12:34:00,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:00,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-10 12:34:00,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-10 12:34:00,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,570 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:00,571 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:00,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,578 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 12:34:00,579 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:00,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:00,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1283381069, now seen corresponding path program 1 times [2021-07-10 12:34:00,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:00,580 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299714338] [2021-07-10 12:34:00,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:00,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:34:00,660 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:00,660 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299714338] [2021-07-10 12:34:00,660 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299714338] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 12:34:00,667 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 12:34:00,667 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 12:34:00,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102580131] [2021-07-10 12:34:00,669 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 12:34:00,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:00,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 12:34:00,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 12:34:00,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,670 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:00,670 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:00,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:00,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:00,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-10 12:34:00,786 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:00,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:00,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1674089053, now seen corresponding path program 1 times [2021-07-10 12:34:00,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:00,790 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532881118] [2021-07-10 12:34:00,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:00,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:34:00,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:00,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532881118] [2021-07-10 12:34:00,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532881118] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:00,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541061550] [2021-07-10 12:34:00,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:01,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2021-07-10 12:34:01,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:01,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 12:34:01,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541061550] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 12:34:01,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-10 12:34:01,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-07-10 12:34:01,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020093224] [2021-07-10 12:34:01,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 12:34:01,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:01,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 12:34:01,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-10 12:34:01,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:01,191 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:01,192 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:01,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:01,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:01,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:01,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:01,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:01,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:01,440 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:01,441 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:01,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:01,441 INFO L82 PathProgramCache]: Analyzing trace with hash -877143426, now seen corresponding path program 1 times [2021-07-10 12:34:01,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:01,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488263922] [2021-07-10 12:34:01,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:01,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:34:01,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:01,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488263922] [2021-07-10 12:34:01,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488263922] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:01,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332062587] [2021-07-10 12:34:01,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:01,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-10 12:34:01,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:01,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:34:01,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332062587] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:01,689 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:01,689 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-07-10 12:34:01,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660806141] [2021-07-10 12:34:01,690 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-10 12:34:01,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:01,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-10 12:34:01,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-10 12:34:01,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:01,691 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:01,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:01,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:01,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:01,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:01,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:01,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:01,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:01,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:01,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:01,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:01,985 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:01,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:01,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1024281869, now seen corresponding path program 1 times [2021-07-10 12:34:01,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:01,986 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090404197] [2021-07-10 12:34:01,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:02,111 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:02,111 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:02,111 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090404197] [2021-07-10 12:34:02,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090404197] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:02,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456052364] [2021-07-10 12:34:02,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:02,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-10 12:34:02,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:02,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:02,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456052364] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:02,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:02,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-07-10 12:34:02,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120527922] [2021-07-10 12:34:02,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-10 12:34:02,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:02,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-10 12:34:02,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-10 12:34:02,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:02,358 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:02,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:02,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:02,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:02,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:02,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:02,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:02,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:02,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:02,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:02,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:02,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:02,691 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:02,691 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:02,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:02,692 INFO L82 PathProgramCache]: Analyzing trace with hash 2022143068, now seen corresponding path program 1 times [2021-07-10 12:34:02,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:02,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143097724] [2021-07-10 12:34:02,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:02,848 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:02,848 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:02,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143097724] [2021-07-10 12:34:02,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143097724] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:02,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691080740] [2021-07-10 12:34:02,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:02,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-10 12:34:02,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:03,059 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:03,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691080740] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:03,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:03,060 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-07-10 12:34:03,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75481338] [2021-07-10 12:34:03,061 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-10 12:34:03,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:03,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-10 12:34:03,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-07-10 12:34:03,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:03,063 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:03,063 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:03,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:03,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:03,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:03,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:03,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:03,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:03,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:03,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:03,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-10 12:34:03,424 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:03,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:03,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1045674363, now seen corresponding path program 2 times [2021-07-10 12:34:03,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:03,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894809731] [2021-07-10 12:34:03,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:03,572 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:03,573 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:03,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894809731] [2021-07-10 12:34:03,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894809731] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:03,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956299406] [2021-07-10 12:34:03,573 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:03,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 12:34:03,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:03,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 12 conjunts are in the unsatisfiable core [2021-07-10 12:34:03,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:03,769 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:03,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956299406] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:03,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:03,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2021-07-10 12:34:03,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548988112] [2021-07-10 12:34:03,770 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-10 12:34:03,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:03,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-10 12:34:03,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-07-10 12:34:03,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:03,771 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:03,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:03,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:03,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:03,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:03,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:03,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:03,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:03,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:03,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:03,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:03,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:03,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:03,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:03,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:03,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:04,143 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:04,144 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:04,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:04,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1628649838, now seen corresponding path program 3 times [2021-07-10 12:34:04,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:04,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349384031] [2021-07-10 12:34:04,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:04,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:04,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349384031] [2021-07-10 12:34:04,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349384031] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:04,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770834862] [2021-07-10 12:34:04,523 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:04,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-10 12:34:04,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:04,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-10 12:34:04,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:04,900 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:04,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770834862] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:04,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:04,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2021-07-10 12:34:04,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28349384] [2021-07-10 12:34:04,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-10 12:34:04,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:04,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-10 12:34:04,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-07-10 12:34:04,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:04,903 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:04,903 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:04,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:04,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:04,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:04,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:04,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:04,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:04,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:04,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:05,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:05,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:05,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:05,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:05,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:05,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:05,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:05,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:05,397 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:05,397 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:05,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:05,398 INFO L82 PathProgramCache]: Analyzing trace with hash 773479703, now seen corresponding path program 4 times [2021-07-10 12:34:05,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:05,398 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620035380] [2021-07-10 12:34:05,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:05,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:05,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620035380] [2021-07-10 12:34:05,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620035380] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:05,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916905688] [2021-07-10 12:34:05,688 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:05,896 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 12:34:05,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:05,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-10 12:34:05,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:06,151 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:06,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916905688] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:06,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:06,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2021-07-10 12:34:06,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644882471] [2021-07-10 12:34:06,154 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-10 12:34:06,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:06,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-10 12:34:06,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-07-10 12:34:06,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:06,155 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:06,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:06,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:06,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:06,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:06,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:06,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:06,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:06,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:06,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:06,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:06,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:06,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:06,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:06,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:06,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:06,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:06,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:06,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:06,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:06,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-07-10 12:34:06,705 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:06,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:06,705 INFO L82 PathProgramCache]: Analyzing trace with hash 768328064, now seen corresponding path program 5 times [2021-07-10 12:34:06,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:06,706 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595162993] [2021-07-10 12:34:06,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:07,054 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:07,054 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:07,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595162993] [2021-07-10 12:34:07,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595162993] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:07,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555065925] [2021-07-10 12:34:07,055 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:07,198 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-07-10 12:34:07,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:07,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 18 conjunts are in the unsatisfiable core [2021-07-10 12:34:07,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:07,498 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:07,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555065925] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:07,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:07,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2021-07-10 12:34:07,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464878581] [2021-07-10 12:34:07,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 12:34:07,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:07,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 12:34:07,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2021-07-10 12:34:07,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:07,499 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:07,500 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 5.705882352941177) internal successors, (97), 17 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:07,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:07,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:07,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:07,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:07,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:07,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:07,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:07,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:07,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:07,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:07,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:08,091 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:08,092 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:08,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:08,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1809675945, now seen corresponding path program 6 times [2021-07-10 12:34:08,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:08,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211640694] [2021-07-10 12:34:08,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:08,457 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:08,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:08,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211640694] [2021-07-10 12:34:08,458 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211640694] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:08,458 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694772117] [2021-07-10 12:34:08,458 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:08,590 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-07-10 12:34:08,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:08,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 20 conjunts are in the unsatisfiable core [2021-07-10 12:34:08,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:08,884 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:08,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694772117] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:08,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:08,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-07-10 12:34:08,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297493832] [2021-07-10 12:34:08,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-10 12:34:08,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:08,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-10 12:34:08,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2021-07-10 12:34:08,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:08,887 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:08,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.45) internal successors, (109), 20 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:08,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:08,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:08,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:08,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:08,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:08,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:08,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:08,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:08,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:08,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:08,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:09,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:09,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:09,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:09,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:09,545 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:09,545 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:09,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:09,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1817080686, now seen corresponding path program 7 times [2021-07-10 12:34:09,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:09,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362607344] [2021-07-10 12:34:09,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:09,936 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 296 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:09,936 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:09,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362607344] [2021-07-10 12:34:09,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362607344] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:09,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716281920] [2021-07-10 12:34:09,937 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:10,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-10 12:34:10,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:10,359 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 296 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:10,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716281920] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:10,359 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:10,359 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-07-10 12:34:10,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112095929] [2021-07-10 12:34:10,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-10 12:34:10,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:10,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-10 12:34:10,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2021-07-10 12:34:10,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:10,361 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:10,361 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.571428571428571) internal successors, (117), 21 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:10,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:10,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:10,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:10,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:10,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:10,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:10,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:10,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:10,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:10,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:10,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:10,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:10,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:10,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:10,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:11,109 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-10 12:34:11,109 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:11,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:11,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1230377787, now seen corresponding path program 8 times [2021-07-10 12:34:11,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:11,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274274823] [2021-07-10 12:34:11,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:11,438 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:11,438 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:11,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274274823] [2021-07-10 12:34:11,439 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274274823] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:11,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916072617] [2021-07-10 12:34:11,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:11,520 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 12:34:11,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:11,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-10 12:34:11,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:11,780 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:11,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916072617] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:11,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:11,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 24 [2021-07-10 12:34:11,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213591502] [2021-07-10 12:34:11,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-10 12:34:11,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:11,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-10 12:34:11,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2021-07-10 12:34:11,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:11,784 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:11,784 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 5.375) internal successors, (129), 24 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:11,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:11,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:11,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:11,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:11,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:11,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:11,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:11,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:11,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:11,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:11,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:11,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:11,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:12,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:12,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:12,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:12,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:12,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:12,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-07-10 12:34:12,397 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:12,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:12,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1116019364, now seen corresponding path program 9 times [2021-07-10 12:34:12,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:12,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433650706] [2021-07-10 12:34:12,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:12,728 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 470 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:12,728 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:12,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433650706] [2021-07-10 12:34:12,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433650706] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:12,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857506117] [2021-07-10 12:34:12,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:12,825 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-07-10 12:34:12,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:12,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 26 conjunts are in the unsatisfiable core [2021-07-10 12:34:12,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 470 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:13,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857506117] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:13,050 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:13,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 26 [2021-07-10 12:34:13,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789840600] [2021-07-10 12:34:13,051 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-10 12:34:13,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:13,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-10 12:34:13,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2021-07-10 12:34:13,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:13,053 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:13,053 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 5.346153846153846) internal successors, (139), 26 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:13,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:13,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:13,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:13,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:13,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:13,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:13,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:13,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:13,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:13,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:13,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:13,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:13,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:13,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:13,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:13,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:13,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:13,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-07-10 12:34:13,763 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:13,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:13,763 INFO L82 PathProgramCache]: Analyzing trace with hash 530887373, now seen corresponding path program 10 times [2021-07-10 12:34:13,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:13,763 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758278784] [2021-07-10 12:34:13,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:14,109 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 0 proven. 572 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:14,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:14,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758278784] [2021-07-10 12:34:14,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758278784] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:14,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919561020] [2021-07-10 12:34:14,109 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:14,189 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 12:34:14,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:14,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 28 conjunts are in the unsatisfiable core [2021-07-10 12:34:14,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:14,461 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 0 proven. 572 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:14,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919561020] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:14,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:14,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 28 [2021-07-10 12:34:14,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407319327] [2021-07-10 12:34:14,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-10 12:34:14,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:14,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-10 12:34:14,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=581, Unknown=0, NotChecked=0, Total=756 [2021-07-10 12:34:14,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:14,464 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:14,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 5.321428571428571) internal successors, (149), 28 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:14,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:14,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:14,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:14,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:14,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:14,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:14,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:14,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:14,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:14,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:14,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:14,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:14,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:14,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:14,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:14,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:14,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:14,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:14,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:15,184 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:15,185 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:15,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:15,185 INFO L82 PathProgramCache]: Analyzing trace with hash 80145334, now seen corresponding path program 11 times [2021-07-10 12:34:15,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:15,185 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502813705] [2021-07-10 12:34:15,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:15,635 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 0 proven. 684 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:15,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:15,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502813705] [2021-07-10 12:34:15,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502813705] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:15,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741329974] [2021-07-10 12:34:15,635 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:15,716 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-07-10 12:34:15,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:15,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 30 conjunts are in the unsatisfiable core [2021-07-10 12:34:15,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:15,954 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 0 proven. 684 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:15,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741329974] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:15,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:15,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 30 [2021-07-10 12:34:15,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514709880] [2021-07-10 12:34:15,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-10 12:34:15,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:15,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-10 12:34:15,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2021-07-10 12:34:15,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:15,957 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:15,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 5.3) internal successors, (159), 30 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:15,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:15,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:15,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:15,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:15,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:15,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:15,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:15,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:15,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:15,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:15,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:15,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:15,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:15,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:15,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:15,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:16,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:16,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:16,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:16,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:16,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-10 12:34:16,757 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:16,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:16,757 INFO L82 PathProgramCache]: Analyzing trace with hash -223750817, now seen corresponding path program 12 times [2021-07-10 12:34:16,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:16,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155233907] [2021-07-10 12:34:16,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:17,198 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 0 proven. 806 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:17,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:17,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155233907] [2021-07-10 12:34:17,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155233907] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:17,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873984083] [2021-07-10 12:34:17,217 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:17,319 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-07-10 12:34:17,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:17,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-10 12:34:17,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:17,581 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 0 proven. 806 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:17,581 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873984083] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:17,581 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:17,581 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 32 [2021-07-10 12:34:17,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188566816] [2021-07-10 12:34:17,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-07-10 12:34:17,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:17,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-07-10 12:34:17,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2021-07-10 12:34:17,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:17,584 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:17,585 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 5.28125) internal successors, (169), 32 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:17,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:17,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:17,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:17,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:17,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:17,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:18,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:18,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:18,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:18,497 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-10 12:34:18,498 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:18,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:18,498 INFO L82 PathProgramCache]: Analyzing trace with hash -541622328, now seen corresponding path program 13 times [2021-07-10 12:34:18,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:18,498 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719836502] [2021-07-10 12:34:18,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:18,969 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 0 proven. 938 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:18,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:18,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719836502] [2021-07-10 12:34:18,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719836502] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:18,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230821437] [2021-07-10 12:34:18,970 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:19,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 34 conjunts are in the unsatisfiable core [2021-07-10 12:34:19,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:19,377 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 0 proven. 938 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:19,378 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230821437] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:19,378 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:19,378 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 34 [2021-07-10 12:34:19,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386863928] [2021-07-10 12:34:19,378 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-07-10 12:34:19,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:19,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-07-10 12:34:19,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-07-10 12:34:19,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:19,380 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:19,380 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 5.264705882352941) internal successors, (179), 34 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:19,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:19,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:19,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:19,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:19,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:19,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:19,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:19,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:19,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:19,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:19,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:19,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:19,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:19,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:19,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:19,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:19,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:19,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:20,385 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-10 12:34:20,385 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:20,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:20,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1861879055, now seen corresponding path program 14 times [2021-07-10 12:34:20,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:20,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967077097] [2021-07-10 12:34:20,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:20,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:20,932 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:20,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967077097] [2021-07-10 12:34:20,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967077097] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:20,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335563892] [2021-07-10 12:34:20,932 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:21,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 12:34:21,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:21,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 36 conjunts are in the unsatisfiable core [2021-07-10 12:34:21,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:21,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:21,321 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335563892] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:21,321 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:21,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 36 [2021-07-10 12:34:21,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444521754] [2021-07-10 12:34:21,322 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-07-10 12:34:21,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:21,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-07-10 12:34:21,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2021-07-10 12:34:21,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:21,323 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:21,324 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 5.25) internal successors, (189), 36 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:21,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:21,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:21,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:21,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:21,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:21,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:21,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:21,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:21,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:21,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:21,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:21,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:21,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:21,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:21,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:21,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:21,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:21,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:21,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:22,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:22,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:22,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:22,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:22,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:22,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:22,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:22,285 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:22,285 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:22,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:22,285 INFO L82 PathProgramCache]: Analyzing trace with hash 861361882, now seen corresponding path program 15 times [2021-07-10 12:34:22,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:22,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966067632] [2021-07-10 12:34:22,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1234 backedges. 0 proven. 1232 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:22,854 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:22,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966067632] [2021-07-10 12:34:22,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966067632] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:22,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079468166] [2021-07-10 12:34:22,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:22,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-07-10 12:34:22,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:22,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 38 conjunts are in the unsatisfiable core [2021-07-10 12:34:22,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:23,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1234 backedges. 0 proven. 1232 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:23,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079468166] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:23,252 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:23,252 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2021-07-10 12:34:23,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910430362] [2021-07-10 12:34:23,253 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-10 12:34:23,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:23,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-10 12:34:23,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=1020, Unknown=0, NotChecked=0, Total=1332 [2021-07-10 12:34:23,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:23,256 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:23,256 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 5.324324324324325) internal successors, (197), 37 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:23,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:23,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:23,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:23,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:23,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:23,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:23,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:23,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:24,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:24,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:24,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:24,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:24,298 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:24,298 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:24,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:24,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1273388157, now seen corresponding path program 16 times [2021-07-10 12:34:24,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:24,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247178413] [2021-07-10 12:34:24,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:24,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 0 proven. 1394 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:24,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:24,864 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247178413] [2021-07-10 12:34:24,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247178413] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:24,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987436457] [2021-07-10 12:34:24,865 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:24,943 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 12:34:24,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:24,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-10 12:34:24,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:25,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 0 proven. 1394 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:25,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987436457] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:25,278 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:25,278 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 39 [2021-07-10 12:34:25,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308226537] [2021-07-10 12:34:25,279 INFO L462 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-07-10 12:34:25,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:25,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-07-10 12:34:25,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=1134, Unknown=0, NotChecked=0, Total=1482 [2021-07-10 12:34:25,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:25,280 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:25,280 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 5.3076923076923075) internal successors, (207), 39 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:25,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:25,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:25,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:25,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:25,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:25,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:25,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:25,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:25,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:25,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:25,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:25,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:25,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:25,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:25,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:25,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:25,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:25,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:25,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:25,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:25,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-10 12:34:26,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-07-10 12:34:26,300 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:26,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:26,300 INFO L82 PathProgramCache]: Analyzing trace with hash -630787860, now seen corresponding path program 17 times [2021-07-10 12:34:26,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:26,300 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753345146] [2021-07-10 12:34:26,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:26,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 0 proven. 1566 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:26,997 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:26,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753345146] [2021-07-10 12:34:26,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753345146] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:26,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953651741] [2021-07-10 12:34:26,997 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:27,265 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2021-07-10 12:34:27,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:27,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 42 conjunts are in the unsatisfiable core [2021-07-10 12:34:27,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:27,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 0 proven. 1566 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:27,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953651741] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:27,580 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:27,580 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2021-07-10 12:34:27,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130654144] [2021-07-10 12:34:27,581 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-07-10 12:34:27,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:27,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-07-10 12:34:27,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=1254, Unknown=0, NotChecked=0, Total=1640 [2021-07-10 12:34:27,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:27,582 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:27,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 5.2926829268292686) internal successors, (217), 41 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:27,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:27,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:27,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:27,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:27,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:27,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:27,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:27,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:27,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:27,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:27,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:27,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:27,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:27,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:27,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:27,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:27,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:27,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:27,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:27,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:27,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-10 12:34:27,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:28,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:28,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:28,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:28,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:28,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-10 12:34:28,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-10 12:34:28,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-07-10 12:34:28,813 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:28,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:28,813 INFO L82 PathProgramCache]: Analyzing trace with hash 537218837, now seen corresponding path program 18 times [2021-07-10 12:34:28,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:28,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997154102] [2021-07-10 12:34:28,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:29,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1750 backedges. 0 proven. 1748 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:29,567 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:29,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997154102] [2021-07-10 12:34:29,567 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997154102] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:29,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485304490] [2021-07-10 12:34:29,567 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:29,756 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2021-07-10 12:34:29,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 12:34:29,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 44 conjunts are in the unsatisfiable core [2021-07-10 12:34:29,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:30,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1750 backedges. 0 proven. 1748 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 12:34:30,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485304490] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:30,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 12:34:30,064 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 43 [2021-07-10 12:34:30,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750037767] [2021-07-10 12:34:30,064 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-07-10 12:34:30,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:30,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-07-10 12:34:30,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=426, Invalid=1380, Unknown=0, NotChecked=0, Total=1806 [2021-07-10 12:34:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:30,065 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:30,065 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 5.27906976744186) internal successors, (227), 43 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:30,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:30,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:30,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:30,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:30,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:30,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:30,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:30,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:30,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:30,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:30,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:30,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:30,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:30,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:30,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:30,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:30,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:30,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:30,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:30,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:30,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-10 12:34:30,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-07-10 12:34:30,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:31,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:31,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:31,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:31,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:31,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-10 12:34:31,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-10 12:34:31,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-10 12:34:31,240 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:31,241 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 12:34:31,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 12:34:31,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1248251390, now seen corresponding path program 19 times [2021-07-10 12:34:31,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 12:34:31,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770721300] [2021-07-10 12:34:31,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 12:34:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:31,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1942 backedges. 1865 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:34:31,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 12:34:31,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770721300] [2021-07-10 12:34:31,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770721300] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 12:34:31,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18199757] [2021-07-10 12:34:31,887 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 12:34:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 12:34:31,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 42 conjunts are in the unsatisfiable core [2021-07-10 12:34:31,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 12:34:32,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1942 backedges. 1942 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 12:34:32,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18199757] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 12:34:32,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-10 12:34:32,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [43] total 45 [2021-07-10 12:34:32,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519177009] [2021-07-10 12:34:32,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-07-10 12:34:32,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 12:34:32,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-07-10 12:34:32,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=1491, Unknown=0, NotChecked=0, Total=1980 [2021-07-10 12:34:32,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:32,322 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 12:34:32,322 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 5.534883720930233) internal successors, (238), 43 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 12:34:32,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:32,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:32,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 12:34:32,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 12:34:32,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 12:34:32,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 12:34:32,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 12:34:32,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 12:34:32,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 12:34:32,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 12:34:32,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 12:34:32,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 12:34:32,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 12:34:32,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 12:34:32,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 12:34:32,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 12:34:32,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-07-10 12:34:32,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-10 12:34:32,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-10 12:34:32,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-10 12:34:32,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-10 12:34:32,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-07-10 12:34:32,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-07-10 12:34:32,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 12:34:35,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-07-10 12:34:35,460 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: Guarantee of compatibility failed at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction$CompliantDfsOrder.lambda$0(PersistentSetReduction.java:142) at java.base/java.util.TimSort.countRunAndMakeAscending(TimSort.java:360) at java.base/java.util.TimSort.sort(TimSort.java:220) at java.base/java.util.Arrays.sort(Arrays.java:1515) at java.base/java.util.ArrayList.sort(ArrayList.java:1750) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.search(SleepSetNewStateReduction.java:147) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.(SleepSetNewStateReduction.java:111) at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction.applyNewStateReduction(PersistentSetReduction.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:193) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:509) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-07-10 12:34:35,465 INFO L168 Benchmark]: Toolchain (without parser) took 36236.75 ms. Allocated memory was 181.4 MB in the beginning and 858.8 MB in the end (delta: 677.4 MB). Free memory was 144.7 MB in the beginning and 354.3 MB in the end (delta: -209.6 MB). Peak memory consumption was 468.2 MB. Max. memory is 8.0 GB. [2021-07-10 12:34:35,465 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 181.4 MB. Free memory is still 162.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 12:34:35,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 452.21 ms. Allocated memory is still 181.4 MB. Free memory was 144.5 MB in the beginning and 156.2 MB in the end (delta: -11.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB. [2021-07-10 12:34:35,465 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.00 ms. Allocated memory is still 181.4 MB. Free memory was 156.2 MB in the beginning and 154.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-10 12:34:35,465 INFO L168 Benchmark]: Boogie Preprocessor took 24.94 ms. Allocated memory is still 181.4 MB. Free memory was 154.1 MB in the beginning and 153.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-10 12:34:35,465 INFO L168 Benchmark]: RCFGBuilder took 294.91 ms. Allocated memory is still 181.4 MB. Free memory was 152.5 MB in the beginning and 131.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-07-10 12:34:35,465 INFO L168 Benchmark]: TraceAbstraction took 35403.19 ms. Allocated memory was 181.4 MB in the beginning and 858.8 MB in the end (delta: 677.4 MB). Free memory was 130.5 MB in the beginning and 354.3 MB in the end (delta: -223.8 MB). Peak memory consumption was 454.1 MB. Max. memory is 8.0 GB. [2021-07-10 12:34:35,466 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 181.4 MB. Free memory is still 162.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 452.21 ms. Allocated memory is still 181.4 MB. Free memory was 144.5 MB in the beginning and 156.2 MB in the end (delta: -11.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 55.00 ms. Allocated memory is still 181.4 MB. Free memory was 156.2 MB in the beginning and 154.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 24.94 ms. Allocated memory is still 181.4 MB. Free memory was 154.1 MB in the beginning and 153.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 294.91 ms. Allocated memory is still 181.4 MB. Free memory was 152.5 MB in the beginning and 131.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 35403.19 ms. Allocated memory was 181.4 MB in the beginning and 858.8 MB in the end (delta: 677.4 MB). Free memory was 130.5 MB in the beginning and 354.3 MB in the end (delta: -223.8 MB). Peak memory consumption was 454.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: Guarantee of compatibility failed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Guarantee of compatibility failed: de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction$CompliantDfsOrder.lambda$0(PersistentSetReduction.java:142) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...